BibTeX records: Martin Wolpers

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@article{DBLP:journals/tlt/TernierSKMNW16,
  author       = {Stefaan Ternier and
                  Maren Scheffel and
                  Ralf Klamma and
                  Katherine Maillet and
                  Wolfgang Nejdl and
                  Martin Wolpers},
  title        = {In Memoriam: Martin Wolpers, PhD 1969-2016},
  journal      = {{IEEE} Trans. Learn. Technol.},
  volume       = {9},
  number       = {2},
  pages        = {106},
  year         = {2016},
  url          = {https://doi.org/10.1109/TLT.2016.2572918},
  doi          = {10.1109/TLT.2016.2572918},
  timestamp    = {Sat, 09 Apr 2022 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/tlt/TernierSKMNW16.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/tlt/ValienteMKNSW16,
  author       = {Jos{\'{e}} A. Ruip{\'{e}}rez Valiente and
                  Pedro J. Mu{\~{n}}oz Merino and
                  Carlos Delgado Kloos and
                  Katja Niemann and
                  Maren Scheffel and
                  Martin Wolpers},
  title        = {Analyzing the Impact of Using Optional Activities in Self-Regulated
                  Learning},
  journal      = {{IEEE} Trans. Learn. Technol.},
  volume       = {9},
  number       = {3},
  pages        = {231--243},
  year         = {2016},
  url          = {https://doi.org/10.1109/TLT.2016.2518172},
  doi          = {10.1109/TLT.2016.2518172},
  timestamp    = {Fri, 25 Dec 2020 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/journals/tlt/ValienteMKNSW16.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/tlt/NiemannW15,
  author       = {Katja Niemann and
                  Martin Wolpers},
  title        = {Creating Usage Context-Based Object Similarities to Boost Recommender
                  Systems in Technology Enhanced Learning},
  journal      = {{IEEE} Trans. Learn. Technol.},
  volume       = {8},
  number       = {3},
  pages        = {274--285},
  year         = {2015},
  url          = {https://doi.org/10.1109/TLT.2014.2379261},
  doi          = {10.1109/TLT.2014.2379261},
  timestamp    = {Fri, 03 Apr 2020 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/tlt/NiemannW15.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/delfi/Wolpers15,
  author       = {Martin Wolpers},
  editor       = {Sabine Rathmayer and
                  Hans Pongratz},
  title        = {Anforderungen und Evaluation im ROLE-Projekt: Vorgehensweise und erste
                  Erfahrungen},
  booktitle    = {Proceedings of DeLFI Workshops 2015 co-located with 13th e-Learning
                  Conference of the German Computer Society (DeLFI 2015), Munich, Germany,
                  September 1, 2015},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {1443},
  pages        = {71--78},
  publisher    = {CEUR-WS.org},
  year         = {2015},
  url          = {https://ceur-ws.org/Vol-1443/paper18.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:53 +0100},
  biburl       = {https://dblp.org/rec/conf/delfi/Wolpers15.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/iknow/KieselW15,
  author       = {Maik Kiesel and
                  Martin Wolpers},
  editor       = {Stefanie N. Lindstaedt and
                  Tobias Ley and
                  Harald Sack},
  title        = {Educational challenges for employees in project-based industry 4.0
                  scenarios},
  booktitle    = {Proceedings of the 15th International Conference on Knowledge Technologies
                  and Data-driven Business, {I-KNOW} '15, Graz, Austria, October 21-23,
                  2015},
  pages        = {41:1--41:4},
  publisher    = {{ACM}},
  year         = {2015},
  url          = {https://doi.org/10.1145/2809563.2809602},
  doi          = {10.1145/2809563.2809602},
  timestamp    = {Tue, 06 Nov 2018 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/iknow/KieselW15.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/lak/NiemannSRWDS15,
  author       = {Katja Niemann and
                  Maren Scheffel and
                  Sarah Leon Rojas and
                  Martin Wolpers and
                  Hendrik Drachsler and
                  Marcus Specht},
  editor       = {Erik Duval and
                  Katrien Verbert and
                  Joris Klerkx and
                  Martin Wolpers and
                  Abelardo Pardo and
                  Sten Govaerts and
                  Denis Gillet and
                  Xavier Ochoa and
                  Denis Parra},
  title        = {Getting a Grasp on Tag Collections by Visualising Tag Clusters Based
                  on Higher-order Co-occurrences},
  booktitle    = {Proceedings of the First International Workshop on Visual Aspects
                  of Learning Analytics co-located with 5th International Learning Analytics
                  and Knowledge Conference {(LAK} 2015), Poughkeepsie, NY, USA, March
                  16-20, 2015},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {1518},
  pages        = {14--18},
  publisher    = {CEUR-WS.org},
  year         = {2015},
  url          = {https://ceur-ws.org/Vol-1518/paper3.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:13 +0100},
  biburl       = {https://dblp.org/rec/conf/lak/NiemannSRWDS15.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/lak/DuvalVKWPGGOP15,
  author       = {Erik Duval and
                  Katrien Verbert and
                  Joris Klerkx and
                  Martin Wolpers and
                  Abelardo Pardo and
                  Sten Govaerts and
                  Denis Gillet and
                  Xavier Ochoa and
                  Denis Parra},
  editor       = {Josh Baron and
                  Grace Lynch and
                  Nicole Maziarz and
                  Paulo Blikstein and
                  Agathe Merceron and
                  George Siemens},
  title        = {{VISLA:} visual aspects of learning analytics},
  booktitle    = {Proceedings of the Fifth International Conference on Learning Analytics
                  And Knowledge, {LAK} '15, Poughkeepsie, NY, USA, March 16-20, 2015},
  pages        = {394--395},
  publisher    = {{ACM}},
  year         = {2015},
  url          = {https://doi.org/10.1145/2723576.2723643},
  doi          = {10.1145/2723576.2723643},
  timestamp    = {Mon, 30 Jan 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/lak/DuvalVKWPGGOP15.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@proceedings{DBLP:conf/lak/2015visla,
  editor       = {Erik Duval and
                  Katrien Verbert and
                  Joris Klerkx and
                  Martin Wolpers and
                  Abelardo Pardo and
                  Sten Govaerts and
                  Denis Gillet and
                  Xavier Ochoa and
                  Denis Parra},
  title        = {Proceedings of the First International Workshop on Visual Aspects
                  of Learning Analytics co-located with 5th International Learning Analytics
                  and Knowledge Conference {(LAK} 2015), Poughkeepsie, NY, USA, March
                  16-20, 2015},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {1518},
  publisher    = {CEUR-WS.org},
  year         = {2015},
  url          = {https://ceur-ws.org/Vol-1518},
  urn          = {urn:nbn:de:0074-1518-8},
  timestamp    = {Fri, 10 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/lak/2015visla.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ACMace/RojasOBW14,
  author       = {Sarah Leon Rojas and
                  Leif Oppermann and
                  Lisa Blum and
                  Martin Wolpers},
  editor       = {Yoram Chisik and
                  Christian Geiger and
                  Shoichi Hasegawa},
  title        = {Natural Europe educational games suite: using structured museum-data
                  for creating mobile educational games},
  booktitle    = {Proceedings of the 11th Conference on Advances in Computer Entertainment
                  Technology, {ACE} '14, Funchal, Madeira, Portugal, November 11-14,
                  2014},
  pages        = {6:1--6:6},
  publisher    = {{ACM}},
  year         = {2014},
  url          = {https://doi.org/10.1145/2663806.2663841},
  doi          = {10.1145/2663806.2663841},
  timestamp    = {Tue, 12 Dec 2023 13:19:36 +0100},
  biburl       = {https://dblp.org/rec/conf/ACMace/RojasOBW14.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/NiemannW14,
  author       = {Katja Niemann and
                  Martin Wolpers},
  editor       = {Christoph Rensing and
                  Sara de Freitas and
                  Tobias Ley and
                  Pedro J. Mu{\~{n}}oz Merino},
  title        = {Usage-Based Clustering of Learning Resources to Improve Recommendations},
  booktitle    = {Open Learning and Teaching in Educational Communities - 9th European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2014, Graz, Austria,
                  September 16-19, 2014, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {8719},
  pages        = {317--330},
  publisher    = {Springer},
  year         = {2014},
  url          = {https://doi.org/10.1007/978-3-319-11200-8\_24},
  doi          = {10.1007/978-3-319-11200-8\_24},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/NiemannW14.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/NiemannW13,
  author       = {Katja Niemann and
                  Martin Wolpers},
  editor       = {Davinia Hern{\'{a}}ndez Leo and
                  Tobias Ley and
                  Ralf Klamma and
                  Andreas Harrer},
  title        = {Usage Context-Boosted Filtering for Recommender Systems in {TEL}},
  booktitle    = {Scaling up Learning for Sustained Impact - 8th European Conference,
                  on Technology Enhanced Learning, {EC-TEL} 2013, Paphos, Cyprus, September
                  17-21, 2013. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {8095},
  pages        = {246--259},
  publisher    = {Springer},
  year         = {2013},
  url          = {https://doi.org/10.1007/978-3-642-40814-4\_20},
  doi          = {10.1007/978-3-642-40814-4\_20},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/NiemannW13.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/ScheffelKTAKKW13,
  author       = {Maren Scheffel and
                  Uwe Kirschenmann and
                  Andreas Taske and
                  Katja Adloff and
                  Maik Kiesel and
                  Roland Klemke and
                  Martin Wolpers},
  editor       = {Davinia Hern{\'{a}}ndez Leo and
                  Tobias Ley and
                  Ralf Klamma and
                  Andreas Harrer},
  title        = {Exploring LogiAssist - The Mobile Learning and Assistance Platform
                  for Truck Drivers},
  booktitle    = {Scaling up Learning for Sustained Impact - 8th European Conference,
                  on Technology Enhanced Learning, {EC-TEL} 2013, Paphos, Cyprus, September
                  17-21, 2013. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {8095},
  pages        = {343--356},
  publisher    = {Springer},
  year         = {2013},
  url          = {https://doi.org/10.1007/978-3-642-40814-4\_27},
  doi          = {10.1007/978-3-642-40814-4\_27},
  timestamp    = {Mon, 15 Jun 2020 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/ScheffelKTAKKW13.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/kdd/NiemannW13,
  author       = {Katja Niemann and
                  Martin Wolpers},
  editor       = {Inderjit S. Dhillon and
                  Yehuda Koren and
                  Rayid Ghani and
                  Ted E. Senator and
                  Paul Bradley and
                  Rajesh Parekh and
                  Jingrui He and
                  Robert L. Grossman and
                  Ramasamy Uthurusamy},
  title        = {A new collaborative filtering approach for increasing the aggregate
                  diversity of recommender systems},
  booktitle    = {The 19th {ACM} {SIGKDD} International Conference on Knowledge Discovery
                  and Data Mining, {KDD} 2013, Chicago, IL, USA, August 11-14, 2013},
  pages        = {955--963},
  publisher    = {{ACM}},
  year         = {2013},
  url          = {https://doi.org/10.1145/2487575.2487656},
  doi          = {10.1145/2487575.2487656},
  timestamp    = {Tue, 06 Nov 2018 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/kdd/NiemannW13.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/lak/NiemannWSCM13,
  author       = {Katja Niemann and
                  Martin Wolpers and
                  Giannis Stoitsis and
                  Georgios Chinis and
                  Nikos Manouselis},
  editor       = {Dan Suthers and
                  Katrien Verbert},
  title        = {Aggregating social and usage datasets for learning analytics: data-oriented
                  challenges},
  booktitle    = {Third Conference on Learning Analytics and Knowledge, {LAK} '13, Leuven,
                  Belgium, April 8-12, 2013},
  pages        = {245--249},
  publisher    = {{ACM}},
  year         = {2013},
  url          = {https://doi.org/10.1145/2460296.2460345},
  doi          = {10.1145/2460296.2460345},
  timestamp    = {Tue, 06 Nov 2018 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/lak/NiemannWSCM13.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/ce/VerbertODWPD12,
  author       = {Katrien Verbert and
                  Xavier Ochoa and
                  Michael Derntl and
                  Martin Wolpers and
                  Abelardo Pardo and
                  Erik Duval},
  title        = {Semi-automatic assembly of learning resources},
  journal      = {Comput. Educ.},
  volume       = {59},
  number       = {4},
  pages        = {1257--1272},
  year         = {2012},
  url          = {https://doi.org/10.1016/j.compedu.2012.06.005},
  doi          = {10.1016/J.COMPEDU.2012.06.005},
  timestamp    = {Sat, 30 Sep 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/ce/VerbertODWPD12.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/ixda/LawSWKBA12,
  author       = {Effie Lai{-}Chong Law and
                  Hans{-}Christian Schmitz and
                  Martin Wolpers and
                  Ralf Klamma and
                  Marcel Berthold and
                  Dietrich Albert},
  title        = {Reponsive and Open Learning Environments {(ROLE):} Requirements, Evaluation
                  and Reflection},
  journal      = {IxD{\&}A},
  volume       = {15},
  pages        = {87--101},
  year         = {2012},
  url          = {http://www.mifav.uniroma2.it/inevent/events/idea2010/index.php?s=10\&\#38;a=10\&\#38;link=15toc\&\#38;link=15\_7\_abstract},
  timestamp    = {Wed, 22 May 2019 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/ixda/LawSWKBA12.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/tlt/VerbertMOWDBD12,
  author       = {Katrien Verbert and
                  Nikos Manouselis and
                  Xavier Ochoa and
                  Martin Wolpers and
                  Hendrik Drachsler and
                  Ivana Bosnic and
                  Erik Duval},
  title        = {Context-Aware Recommender Systems for Learning: {A} Survey and Future
                  Challenges},
  journal      = {{IEEE} Trans. Learn. Technol.},
  volume       = {5},
  number       = {4},
  pages        = {318--335},
  year         = {2012},
  url          = {https://doi.org/10.1109/TLT.2012.11},
  doi          = {10.1109/TLT.2012.11},
  timestamp    = {Mon, 30 Jan 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/journals/tlt/VerbertMOWDBD12.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/NiemannSW12,
  author       = {Katja Niemann and
                  Maren Scheffel and
                  Martin Wolpers},
  editor       = {Nikos Manouselis and
                  Hendrik Drachsler and
                  Katrien Verbert and
                  Olga C. Santos},
  title        = {A Comparison of Usage Data Formats for Recommendations in {TEL}},
  booktitle    = {Proceedings of the 2nd Workshop on Recommender Systems in Technology
                  Enhanced Learning 2012, Saarbr{\"{u}}cken, Germany, September
                  18-19, 2012},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {896},
  pages        = {95--100},
  publisher    = {CEUR-WS.org},
  year         = {2012},
  url          = {https://ceur-ws.org/Vol-896/paper9.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:31 +0100},
  biburl       = {https://dblp.org/rec/conf/ectel/NiemannSW12.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/ScheffelNLPSWK12,
  author       = {Maren Scheffel and
                  Katja Niemann and
                  Derick Leony and
                  Abelardo Pardo and
                  Hans{-}Christian Schmitz and
                  Martin Wolpers and
                  Carlos Delgado Kloos},
  editor       = {Andrew Ravenscroft and
                  Stefanie N. Lindstaedt and
                  Carlos Delgado Kloos and
                  Davinia Hern{\'{a}}ndez Leo},
  title        = {Key Action Extraction for Learning Analytics},
  booktitle    = {21st Century Learning for 21st Century Skills - 7th European Conference
                  of Technology Enhanced Learning, {EC-TEL} 2012, Saarbr{\"{u}}cken,
                  Germany, September 18-21, 2012. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {7563},
  pages        = {320--333},
  publisher    = {Springer},
  year         = {2012},
  url          = {https://doi.org/10.1007/978-3-642-33263-0\_25},
  doi          = {10.1007/978-3-642-33263-0\_25},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/ScheffelNLPSWK12.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/RojasKW12,
  author       = {Sarah Leon Rojas and
                  Uwe Kirschenmann and
                  Martin Wolpers},
  editor       = {Carlo Giovannella and
                  Demetrios G. Sampson and
                  Ignacio Aedo},
  title        = {We Have No Feelings, We Have Emoticons ;-)},
  booktitle    = {12th {IEEE} International Conference on Advanced Learning Technologies,
                  {ICALT} 2012, Rome, Italy, July 4-6, 2012},
  pages        = {642--646},
  publisher    = {{IEEE} Computer Society},
  year         = {2012},
  url          = {https://doi.org/10.1109/ICALT.2012.180},
  doi          = {10.1109/ICALT.2012.180},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/RojasKW12.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/lak/NiemannSKWSK12,
  author       = {Katja Niemann and
                  Hans{-}Christian Schmitz and
                  Uwe Kirschenmann and
                  Martin Wolpers and
                  Anna Schmidt and
                  Tim Krones},
  editor       = {Shane Dawson and
                  Caroline Haythornthwaite and
                  Simon Buckingham Shum and
                  Dragan Gasevic and
                  Rebecca Ferguson},
  title        = {Clustering by usage: higher order co-occurrences of learning objects},
  booktitle    = {Second International Conference on Learning Analytics and Knowledge,
                  {LAK} 2012, Vancouver, BC, Canada, April 29 - May 02, 2012},
  pages        = {238--247},
  publisher    = {{ACM}},
  year         = {2012},
  url          = {https://doi.org/10.1145/2330601.2330659},
  doi          = {10.1145/2330601.2330659},
  timestamp    = {Tue, 06 Nov 2018 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/lak/NiemannSKWSK12.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/jucs/FriedrichWSUKRRH11,
  author       = {Martin Friedrich and
                  Martin Wolpers and
                  Ruimin Shen and
                  Carsten Ullrich and
                  Ralf Klamma and
                  Dominik Renzel and
                  Anja Richert and
                  Bodo von der Heiden},
  title        = {Early Results of Experiments with Responsive Open Learning Environments},
  journal      = {J. Univers. Comput. Sci.},
  volume       = {17},
  number       = {3},
  pages        = {451--471},
  year         = {2011},
  url          = {https://doi.org/10.3217/jucs-017-03-0451},
  doi          = {10.3217/JUCS-017-03-0451},
  timestamp    = {Thu, 07 Sep 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/jucs/FriedrichWSUKRRH11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/ScheffelNPLFSWK11,
  author       = {Maren Scheffel and
                  Katja Niemann and
                  Abelardo Pardo and
                  Derick Leony and
                  Martin Friedrich and
                  Kerstin Schmidt and
                  Martin Wolpers and
                  Carlos Delgado Kloos},
  editor       = {Carlos Delgado Kloos and
                  Denis Gillet and
                  Raquel M. Crespo Garc{\'{\i}}a and
                  Fridolin Wild and
                  Martin Wolpers},
  title        = {Usage Pattern Recognition in Student Activities},
  booktitle    = {Towards Ubiquitous Learning - 6th European Conference of Technology
                  Enhanced Learning, {EC-TEL} 2011, Palermo, Italy, September 20-23,
                  2011. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {6964},
  pages        = {341--355},
  publisher    = {Springer},
  year         = {2011},
  url          = {https://doi.org/10.1007/978-3-642-23985-4\_27},
  doi          = {10.1007/978-3-642-23985-4\_27},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/ScheffelNPLFSWK11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/OrthmannFKNSSW11,
  author       = {Marc{-}Andre Orthmann and
                  Martin Friedrich and
                  Uwe Kirschenmann and
                  Katja Niemann and
                  Maren Scheffel and
                  Hans{-}Christian Schmitz and
                  Martin Wolpers},
  title        = {Usage-based Clustering of Learning Objects for Recommendation},
  booktitle    = {{ICALT} 2011, 11th {IEEE} International Conference on Advanced Learning
                  Technologies, Athens, Georgia, USA, 6-8 July 2011},
  pages        = {553--557},
  publisher    = {{IEEE} Computer Society},
  year         = {2011},
  url          = {https://doi.org/10.1109/ICALT.2011.169},
  doi          = {10.1109/ICALT.2011.169},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/OrthmannFKNSSW11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/iri/WolpersMNKSGD11,
  author       = {Martin Wolpers and
                  Martin Memmel and
                  Katja Niemann and
                  Joris Klerkx and
                  Marcus Specht and
                  Alberto Giretti and
                  Erik Duval},
  title        = {Aggregating metadata to improve access to resources},
  booktitle    = {Proceedings of the {IEEE} International Conference on Information
                  Reuse and Integration, {IRI} 2011, 3-5 August 2011, Las Vegas, Nevada,
                  {USA}},
  pages        = {187--192},
  publisher    = {{IEEE} Systems, Man, and Cybernetics Society},
  year         = {2011},
  url          = {https://doi.org/10.1109/IRI.2011.6009544},
  doi          = {10.1109/IRI.2011.6009544},
  timestamp    = {Wed, 16 Oct 2019 14:14:50 +0200},
  biburl       = {https://dblp.org/rec/conf/iri/WolpersMNKSGD11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/lak/VerbertDMWVD11,
  author       = {Katrien Verbert and
                  Hendrik Drachsler and
                  Nikos Manouselis and
                  Martin Wolpers and
                  Riina Vuorikari and
                  Erik Duval},
  editor       = {Phillip D. Long and
                  George Siemens and
                  Gr{\'{a}}inne Conole and
                  Dragan Gasevic},
  title        = {Dataset-driven research for improving recommender systems for learning},
  booktitle    = {Proceedings of the 1st International Conference on Learning Analytics
                  and Knowledge, {LAK} 2011, Banff, AB, Canada, February 27 - March
                  01, 2011},
  pages        = {44--53},
  publisher    = {{ACM}},
  year         = {2011},
  url          = {https://doi.org/10.1145/2090116.2090122},
  doi          = {10.1145/2090116.2090122},
  timestamp    = {Sat, 30 Sep 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/lak/VerbertDMWVD11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/lak/NiemannSSW11,
  author       = {Katja Niemann and
                  Hans{-}Christian Schmitz and
                  Maren Scheffel and
                  Martin Wolpers},
  editor       = {Phillip D. Long and
                  George Siemens and
                  Gr{\'{a}}inne Conole and
                  Dragan Gasevic},
  title        = {Usage contexts for object similarity: exploratory investigations},
  booktitle    = {Proceedings of the 1st International Conference on Learning Analytics
                  and Knowledge, {LAK} 2011, Banff, AB, Canada, February 27 - March
                  01, 2011},
  pages        = {81--85},
  publisher    = {{ACM}},
  year         = {2011},
  url          = {https://doi.org/10.1145/2090116.2090127},
  doi          = {10.1145/2090116.2090127},
  timestamp    = {Tue, 06 Nov 2018 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/lak/NiemannSSW11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/mtsr/HaNSHPBKPVPBPW11,
  author       = {Kyung{-}Hun Ha and
                  Katja Niemann and
                  Uta Schwertel and
                  Philipp Holtkamp and
                  Henri Pirkkalainen and
                  Dirk B{\"{o}}rner and
                  Marco Kalz and
                  Vassilis Pitsilis and
                  Ares Vidalis and
                  Dimitra Pappa and
                  Markus Bick and
                  Jan M. Pawlowski and
                  Martin Wolpers},
  editor       = {Elena Garc{\'{\i}}a{-}Barriocanal and
                  Zeynel Cebeci and
                  Mehmet Cudi Okur and
                  Aydin {\"{O}}zt{\"{u}}rk},
  title        = {A Novel Approach towards Skill-Based Search and Services of Open Educational
                  Resources},
  booktitle    = {Metadata and Semantic Research - 5th International Conference, {MTSR}
                  2011, Izmir, Turkey, October 12-14, 2011. Proceedings},
  series       = {Communications in Computer and Information Science},
  volume       = {240},
  pages        = {312--323},
  publisher    = {Springer},
  year         = {2011},
  url          = {https://doi.org/10.1007/978-3-642-24731-6\_32},
  doi          = {10.1007/978-3-642-24731-6\_32},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/mtsr/HaNSHPBKPVPBPW11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/mtsr/SchmidtSW11,
  author       = {Kerstin Schmidt and
                  Hans{-}Christian Schmitz and
                  Martin Wolpers},
  editor       = {Elena Garc{\'{\i}}a{-}Barriocanal and
                  Zeynel Cebeci and
                  Mehmet Cudi Okur and
                  Aydin {\"{O}}zt{\"{u}}rk},
  title        = {Developing a Network of Cultural Heritage Objects Repositories for
                  Educational Purposes},
  booktitle    = {Metadata and Semantic Research - 5th International Conference, {MTSR}
                  2011, Izmir, Turkey, October 12-14, 2011. Proceedings},
  series       = {Communications in Computer and Information Science},
  volume       = {240},
  pages        = {337--348},
  publisher    = {Springer},
  year         = {2011},
  url          = {https://doi.org/10.1007/978-3-642-24731-6\_34},
  doi          = {10.1007/978-3-642-24731-6\_34},
  timestamp    = {Thu, 25 May 2017 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/mtsr/SchmidtSW11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@proceedings{DBLP:conf/ectel/2011,
  editor       = {Carlos Delgado Kloos and
                  Denis Gillet and
                  Raquel M. Crespo Garc{\'{\i}}a and
                  Fridolin Wild and
                  Martin Wolpers},
  title        = {Towards Ubiquitous Learning - 6th European Conference of Technology
                  Enhanced Learning, {EC-TEL} 2011, Palermo, Italy, September 20-23,
                  2011. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {6964},
  publisher    = {Springer},
  year         = {2011},
  url          = {https://doi.org/10.1007/978-3-642-23985-4},
  doi          = {10.1007/978-3-642-23985-4},
  isbn         = {978-3-642-23984-7},
  timestamp    = {Mon, 28 Aug 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/2011.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/jucs/NiemannSFKSW10,
  author       = {Katja Niemann and
                  Maren Scheffel and
                  Martin Friedrich and
                  Uwe Kirschenmann and
                  Hans{-}Christian Schmitz and
                  Martin Wolpers},
  title        = {Usage-based Object Similarity},
  journal      = {J. Univers. Comput. Sci.},
  volume       = {16},
  number       = {16},
  pages        = {2272--2290},
  year         = {2010},
  url          = {https://doi.org/10.3217/jucs-016-16-2272},
  doi          = {10.3217/JUCS-016-16-2272},
  timestamp    = {Thu, 07 Sep 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/jucs/NiemannSFKSW10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/csedu/ScheffelBW10,
  author       = {Maren Scheffel and
                  Frank Beer and
                  Martin Wolpers},
  editor       = {Jos{\'{e}} A. Moinhos Cordeiro and
                  Boris Shishkov and
                  Alexander Verbraeck and
                  Markus Helfert},
  title        = {Analysing Contextualized Attention Metadata for Self-regulated Learning
                  - {A} Supporting Framework for Self-Monitoring and Self-Reflection},
  booktitle    = {{CSEDU} 2010 - Proceedings of the Second International Conference
                  on Computer Supported Education, Valencia, Spain, April 7-10, 2010
                  - Volume 1},
  pages        = {341--346},
  publisher    = {{INSTICC} Press},
  year         = {2010},
  timestamp    = {Tue, 04 Jan 2011 15:45:29 +0100},
  biburl       = {https://dblp.org/rec/conf/csedu/ScheffelBW10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/KirschenmannSFNW10,
  author       = {Uwe Kirschenmann and
                  Maren Scheffel and
                  Martin Friedrich and
                  Katja Niemann and
                  Martin Wolpers},
  editor       = {Martin Wolpers and
                  Paul A. Kirschner and
                  Maren Scheffel and
                  Stefanie N. Lindstaedt and
                  Vania Dimitrova},
  title        = {Demands of Modern PLEs and the {ROLE} Approach},
  booktitle    = {Sustaining {TEL:} From Innovation to Learning and Practice - 5th European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2010, Barcelona,
                  Spain, September 28 - October 1, 2010. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {6383},
  pages        = {167--182},
  publisher    = {Springer},
  year         = {2010},
  url          = {https://doi.org/10.1007/978-3-642-16020-2\_12},
  doi          = {10.1007/978-3-642-16020-2\_12},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/KirschenmannSFNW10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/ScheffelFNKW10,
  author       = {Maren Scheffel and
                  Martin Friedrich and
                  Katja Niemann and
                  Uwe Kirschenmann and
                  Martin Wolpers},
  editor       = {Martin Wolpers and
                  Paul A. Kirschner and
                  Maren Scheffel and
                  Stefanie N. Lindstaedt and
                  Vania Dimitrova},
  title        = {A Framework for the Domain-Independent Collection of Attention Metadata},
  booktitle    = {Sustaining {TEL:} From Innovation to Learning and Practice - 5th European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2010, Barcelona,
                  Spain, September 28 - October 1, 2010. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {6383},
  pages        = {426--431},
  publisher    = {Springer},
  year         = {2010},
  url          = {https://doi.org/10.1007/978-3-642-16020-2\_32},
  doi          = {10.1007/978-3-642-16020-2\_32},
  timestamp    = {Wed, 25 Sep 2019 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/ScheffelFNKW10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/MemmelWCNS10,
  author       = {Martin Memmel and
                  Martin Wolpers and
                  Massimiliano Condotta and
                  Katja Niemann and
                  Rafael Schirru},
  editor       = {Martin Wolpers and
                  Paul A. Kirschner and
                  Maren Scheffel and
                  Stefanie N. Lindstaedt and
                  Vania Dimitrova},
  title        = {Introducing a Social Backbone to Support Access to Digital Resources},
  booktitle    = {Sustaining {TEL:} From Innovation to Learning and Practice - 5th European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2010, Barcelona,
                  Spain, September 28 - October 1, 2010. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {6383},
  pages        = {560--565},
  publisher    = {Springer},
  year         = {2010},
  url          = {https://doi.org/10.1007/978-3-642-16020-2\_54},
  doi          = {10.1007/978-3-642-16020-2\_54},
  timestamp    = {Fri, 02 Jun 2017 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/MemmelWCNS10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/i-semantics/MerinoPKOWNF10,
  author       = {Pedro J. Mu{\~{n}}oz Merino and
                  Abelardo Pardo and
                  Carlos Delgado Kloos and
                  Mario Mu{\~{n}}oz Organero and
                  Martin Wolpers and
                  Katja Niemann and
                  Martin Friedrich},
  editor       = {Adrian Paschke and
                  Nicola Henze and
                  Tassilo Pellegrini},
  title        = {{CAM} in the semantic web world},
  booktitle    = {Proceedings the 6th International Conference on Semantic Systems,
                  {I-SEMANTICS} 2010, Graz, Austria, September 1-3, 2010},
  series       = {{ACM} International Conference Proceeding Series},
  publisher    = {{ACM}},
  year         = {2010},
  url          = {https://doi.org/10.1145/1839707.1839737},
  doi          = {10.1145/1839707.1839737},
  timestamp    = {Tue, 27 Sep 2022 09:57:16 +0200},
  biburl       = {https://dblp.org/rec/conf/i-semantics/MerinoPKOWNF10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/Munoz-MerinoKWFO10,
  author       = {Pedro J. Mu{\~{n}}oz Merino and
                  Carlos Delgado Kloos and
                  Martin Wolpers and
                  Martin Friedrich and
                  Mario Mu{\~{n}}oz Organero},
  title        = {An Approach for the Personalization of Exercises Based on Contextualized
                  Attention Metadata and Semantic Web technologies},
  booktitle    = {{ICALT} 2010, 10th {IEEE} International Conference on Advanced Learning
                  Technologies, Sousse, Tunisia, 5-7 July 2010},
  pages        = {89--91},
  publisher    = {{IEEE} Computer Society},
  year         = {2010},
  url          = {https://doi.org/10.1109/ICALT.2010.32},
  doi          = {10.1109/ICALT.2010.32},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/Munoz-MerinoKWFO10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/ScheffelWB10,
  author       = {Maren Scheffel and
                  Martin Wolpers and
                  Frank Beer},
  title        = {Analyzing Contextualized Attention Metadata with Rough Set Methodologies
                  to Support Self-regulated Learning},
  booktitle    = {{ICALT} 2010, 10th {IEEE} International Conference on Advanced Learning
                  Technologies, Sousse, Tunisia, 5-7 July 2010},
  pages        = {125--129},
  publisher    = {{IEEE} Computer Society},
  year         = {2010},
  url          = {https://doi.org/10.1109/ICALT.2010.43},
  doi          = {10.1109/ICALT.2010.43},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/ScheffelWB10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/NiemannW10,
  author       = {Katja Niemann and
                  Martin Wolpers},
  title        = {Enabling the Use of Real World Objects to Improve Learning},
  booktitle    = {{ICALT} 2010, 10th {IEEE} International Conference on Advanced Learning
                  Technologies, Sousse, Tunisia, 5-7 July 2010},
  pages        = {259--263},
  publisher    = {{IEEE} Computer Society},
  year         = {2010},
  url          = {https://doi.org/10.1109/ICALT.2010.77},
  doi          = {10.1109/ICALT.2010.77},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/NiemannW10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:journals/procedia/DrachslerBVVDMBLSFW10,
  author       = {Hendrik Drachsler and
                  Toine Bogers and
                  Riina Vuorikari and
                  Katrien Verbert and
                  Erik Duval and
                  Nikos Manouselis and
                  G{\"{u}}nter Beham and
                  Stefanie N. Lindstaedt and
                  Hermann Stern and
                  Martin Friedrich and
                  Martin Wolpers},
  editor       = {Nikos Manouselis and
                  Hendrik Drachsler and
                  Katrien Verbert and
                  Olga C. Santos},
  title        = {Issues and considerations regarding sharable data sets for recommender
                  systems in technology enhanced learning},
  booktitle    = {Proceedings of the 1st Workshop on Recommender Systems for Technology
                  Enhanced Learning, RecSysTEL 2010, Barcelona, Spain, September 29-30,
                  2010},
  series       = {Procedia Computer Science},
  volume       = {1},
  number       = {2},
  pages        = {2849--2858},
  publisher    = {Elsevier},
  year         = {2010},
  url          = {https://doi.org/10.1016/j.procs.2010.08.010},
  doi          = {10.1016/J.PROCS.2010.08.010},
  timestamp    = {Wed, 07 Dec 2022 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/journals/procedia/DrachslerBVVDMBLSFW10.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@proceedings{DBLP:conf/ectel/2010,
  editor       = {Martin Wolpers and
                  Paul A. Kirschner and
                  Maren Scheffel and
                  Stefanie N. Lindstaedt and
                  Vania Dimitrova},
  title        = {Sustaining {TEL:} From Innovation to Learning and Practice - 5th European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2010, Barcelona,
                  Spain, September 28 - October 1, 2010. Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {6383},
  publisher    = {Springer},
  year         = {2010},
  url          = {https://doi.org/10.1007/978-3-642-16020-2},
  doi          = {10.1007/978-3-642-16020-2},
  isbn         = {978-3-642-16019-6},
  timestamp    = {Mon, 28 Aug 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/2010.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/WolpersMG09,
  author       = {Martin Wolpers and
                  Martin Memmel and
                  Alberto Giretti},
  editor       = {Ulrike Cress and
                  Vania Dimitrova and
                  Marcus Specht},
  title        = {Metadata in Architecture Education - First Evaluation Results of the
                  {MACE} System},
  booktitle    = {Learning in the Synergy of Multiple Disciplines, 4th European Conference
                  on Technology Enhanced Learning, {EC-TEL} 2009, Nice, France, September
                  29 - October 2, 2009, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {5794},
  pages        = {112--126},
  publisher    = {Springer},
  year         = {2009},
  url          = {https://doi.org/10.1007/978-3-642-04636-0\_13},
  doi          = {10.1007/978-3-642-04636-0\_13},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/WolpersMG09.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/SchmitzSFJNW09,
  author       = {Hans{-}Christian Schmitz and
                  Maren Scheffel and
                  Martin Friedrich and
                  Marco Jahn and
                  Katja Niemann and
                  Martin Wolpers},
  editor       = {Ulrike Cress and
                  Vania Dimitrova and
                  Marcus Specht},
  title        = {CAMera for {PLE}},
  booktitle    = {Learning in the Synergy of Multiple Disciplines, 4th European Conference
                  on Technology Enhanced Learning, {EC-TEL} 2009, Nice, France, September
                  29 - October 2, 2009, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {5794},
  pages        = {507--520},
  publisher    = {Springer},
  year         = {2009},
  url          = {https://doi.org/10.1007/978-3-642-04636-0\_47},
  doi          = {10.1007/978-3-642-04636-0\_47},
  timestamp    = {Wed, 25 Sep 2019 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/SchmitzSFJNW09.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/gi/WolpersS09,
  author       = {Martin Wolpers and
                  Hans{-}Christian Schmitz},
  editor       = {Stefan Fischer and
                  Erik Maehle and
                  R{\"{u}}diger Reischuk},
  title        = {Exploitation of usage and attention metadata},
  booktitle    = {39. Jahrestagung der Gesellschaft f{\"{u}}r Informatik, Im Focus
                  das Leben, {INFORMATIK} 2009, L{\"{u}}beck, Germany, September
                  28 - October 2, 2009, Proceedings},
  series       = {{LNI}},
  volume       = {{P-154}},
  pages        = {176--177},
  publisher    = {{GI}},
  year         = {2009},
  url          = {https://dl.gi.de/handle/20.500.12116/31122},
  timestamp    = {Tue, 04 Jul 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/gi/WolpersS09.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/gi/ScheffelFJKNSW09,
  author       = {Maren Scheffel and
                  Martin Friedrich and
                  Marco Jahn and
                  Uwe Kirschenmann and
                  Katja Niemann and
                  Hans{-}Christian Schmitz and
                  Martin Wolpers},
  editor       = {Stefan Fischer and
                  Erik Maehle and
                  R{\"{u}}diger Reischuk},
  title        = {Self-monitoring for Computer Users},
  booktitle    = {39. Jahrestagung der Gesellschaft f{\"{u}}r Informatik, Im Focus
                  das Leben, {INFORMATIK} 2009, L{\"{u}}beck, Germany, September
                  28 - October 2, 2009, Proceedings},
  series       = {{LNI}},
  volume       = {{P-154}},
  pages        = {1680--1687},
  publisher    = {{GI}},
  year         = {2009},
  url          = {https://dl.gi.de/handle/20.500.12116/31130},
  timestamp    = {Tue, 04 Jul 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/gi/ScheffelFJKNSW09.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/WolpersNP09,
  author       = {Martin Wolpers and
                  Katja Niemann and
                  Christian Prause},
  title        = {Metadata Representation of Real-World Objects for Architectural Education},
  booktitle    = {The 9th {IEEE} International Conference on Advanced Learning Technologies,
                  {ICALT} 2009, Riga, Latvia, July 15-17, 2009},
  pages        = {465--467},
  publisher    = {{IEEE} Computer Society},
  year         = {2009},
  url          = {https://doi.org/10.1109/ICALT.2009.22},
  doi          = {10.1109/ICALT.2009.22},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/WolpersNP09.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/MemmelSWT08,
  author       = {Martin Memmel and
                  Rafael Schirru and
                  Martin Wolpers and
                  Eleftheria Tomadaki},
  title        = {Towards the Combined Use of Metadata to Improve the Learning Experience},
  booktitle    = {The 8th {IEEE} International Conference on Advanced Learning Technologies,
                  {ICALT} 2008, Santander, Cantabria, Spain, July 1-5, 2008},
  pages        = {930--932},
  publisher    = {{IEEE} Computer Society},
  year         = {2008},
  url          = {https://doi.org/10.1109/ICALT.2008.131},
  doi          = {10.1109/ICALT.2008.131},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/MemmelSWT08.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icdim/NiemannW08,
  author       = {Katja Niemann and
                  Martin Wolpers},
  editor       = {Pit Pichappan and
                  Ajith Abraham},
  title        = {Modeling vocabularies in the architectural domain},
  booktitle    = {Third {IEEE} International Conference on Digital Information Management
                  (ICDIM), November 13-16, 2008, London, UK, Proceedings},
  pages        = {314--319},
  publisher    = {{IEEE}},
  year         = {2008},
  url          = {https://doi.org/10.1109/ICDIM.2008.4746779},
  doi          = {10.1109/ICDIM.2008.4746779},
  timestamp    = {Wed, 16 Oct 2019 14:14:49 +0200},
  biburl       = {https://dblp.org/rec/conf/icdim/NiemannW08.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/ets/WolpersNVD07,
  author       = {Martin Wolpers and
                  Jehad Najjar and
                  Katrien Verbert and
                  Erik Duval},
  title        = {Tracking Actual Usage: the Attention Metadata Approach},
  journal      = {J. Educ. Technol. Soc.},
  volume       = {10},
  number       = {3},
  pages        = {106--121},
  year         = {2007},
  url          = {http://www.ifets.info/abstract.php?art\_id=772},
  timestamp    = {Mon, 16 May 2022 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/ets/WolpersNVD07.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/PrauseTJASWEVSD07,
  author       = {Christian Prause and
                  Stefaan Ternier and
                  Tim de Jong and
                  Stefan Apelt and
                  Marius Scholten and
                  Martin Wolpers and
                  Markus Eisenhauer and
                  Bram Vandeputte and
                  Marcus Specht and
                  Erik Duval},
  editor       = {David Massart and
                  Jean{-}No{\"{e}}l Colin and
                  Frans Van Assche},
  title        = {Unifying Learning Object Repositories in {MACE}},
  booktitle    = {Proceedings of the First International Workshop on Learning Object
                  Discovery {\&} Exchange, {LODE} 2007, Sissi, Lassithi - Crete
                  Greece, 18 September, 2007},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {311},
  publisher    = {CEUR-WS.org},
  year         = {2007},
  url          = {https://ceur-ws.org/Vol-311/paper01.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:30 +0100},
  biburl       = {https://dblp.org/rec/conf/ectel/PrauseTJASWEVSD07.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/StefanerVCWSAD07,
  author       = {Moritz Stefaner and
                  Elisa Dalla Vecchia and
                  Massimiliano Condotta and
                  Martin Wolpers and
                  Marcus Specht and
                  Stefan Apelt and
                  Erik Duval},
  editor       = {Erik Duval and
                  Ralf Klamma and
                  Martin Wolpers},
  title        = {{MACE} - Enriching Architectural Learning Objects for Experience Multiplication},
  booktitle    = {Creating New Learning Experiences on a Global Scale, Second European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2007, Crete,
                  Greece, September 17-20, 2007, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {4753},
  pages        = {322--336},
  publisher    = {Springer},
  year         = {2007},
  url          = {https://doi.org/10.1007/978-3-540-75195-3\_23},
  doi          = {10.1007/978-3-540-75195-3\_23},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/StefanerVCWSAD07.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@proceedings{DBLP:conf/ectel/2007posters,
  editor       = {Martin Wolpers and
                  Ralf Klamma and
                  Erik Duval},
  title        = {Proceedings of the {EC-TEL} 2007 Poster Session, Crete, Greece, September
                  17-20, 2007},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {280},
  publisher    = {CEUR-WS.org},
  year         = {2007},
  url          = {https://ceur-ws.org/Vol-280},
  urn          = {urn:nbn:de:0074-280-4},
  timestamp    = {Fri, 10 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/ectel/2007posters.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@proceedings{DBLP:conf/ectel/2007,
  editor       = {Erik Duval and
                  Ralf Klamma and
                  Martin Wolpers},
  title        = {Creating New Learning Experiences on a Global Scale, Second European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2007, Crete,
                  Greece, September 17-20, 2007, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {4753},
  publisher    = {Springer},
  year         = {2007},
  url          = {https://doi.org/10.1007/978-3-540-75195-3},
  doi          = {10.1007/978-3-540-75195-3},
  isbn         = {978-3-540-75194-6},
  timestamp    = {Mon, 28 Aug 2023 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/2007.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@proceedings{DBLP:conf/jcdl/2007cama,
  editor       = {Erik Duval and
                  Jehad Najjar and
                  Martin Wolpers},
  title        = {Proceedings of the International {ACM/IEEE} Workshop on Contextualized
                  Attention Metadata: Personalized Access to Digital Resources {CAMA}
                  2007, Vancouver, Canada, June 23, 2007},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {266},
  publisher    = {CEUR-WS.org},
  year         = {2007},
  url          = {https://ceur-ws.org/Vol-266},
  urn          = {urn:nbn:de:0074-266-8},
  timestamp    = {Fri, 10 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/jcdl/2007cama.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/MemmelRWBOW06,
  author       = {Martin Memmel and
                  Eric Ras and
                  Stephan Weibelzahl and
                  Daniel Burgos and
                  Daniel Olmedilla and
                  Martin Wolpers},
  editor       = {Eleftheria Tomadaki and
                  Peter J. Scott},
  title        = {Joint International Workshop on Professional Learning, Competence
                  Development and Knowledge Management {LOKMOL} and {L3NCD} (Preface)},
  booktitle    = {Proceedings of the {EC-TEL06} Workshops, Crete, Greece , October 1-2,
                  2006},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {213},
  publisher    = {CEUR-WS.org},
  year         = {2006},
  url          = {https://ceur-ws.org/Vol-213/paper20.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:30 +0100},
  biburl       = {https://dblp.org/rec/conf/ectel/MemmelRWBOW06.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ectel/WolpersHM06,
  author       = {Martin Wolpers and
                  Margit Hofer and
                  Gunnar Martin},
  editor       = {Wolfgang Nejdl and
                  Klaus Tochtermann},
  title        = {Professional Learning in Europe and Beyond Structures for Sustainable
                  TEL-Research},
  booktitle    = {Innovative Approaches for Learning and Knowledge Sharing, First European
                  Conference on Technology Enhanced Learning, {EC-TEL} 2006, Crete,
                  Greece, October 1-4, 2006, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {4227},
  pages        = {715--718},
  publisher    = {Springer},
  year         = {2006},
  url          = {https://doi.org/10.1007/11876663\_78},
  doi          = {10.1007/11876663\_78},
  timestamp    = {Mon, 28 Aug 2023 21:17:28 +0200},
  biburl       = {https://dblp.org/rec/conf/ectel/WolpersHM06.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/icalt/NajjarDW06,
  author       = {Jehad Najjar and
                  Erik Duval and
                  Martin Wolpers},
  title        = {Towards Effective Usage-Based Learning Applications: Track and Learn
                  from User Experience(s)},
  booktitle    = {Proceedings of the 6th {IEEE} International Conference on Advanced
                  Learning Technologies, {ICALT} 2006, Kerkrade, The Netherlands, July
                  5-7, 2006},
  pages        = {1022--1024},
  publisher    = {{IEEE} Computer Society},
  year         = {2006},
  url          = {https://doi.org/10.1109/ICALT.2006.1652619},
  doi          = {10.1109/ICALT.2006.1652619},
  timestamp    = {Thu, 23 Mar 2023 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/conf/icalt/NajjarDW06.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/ijkl/WolpersG05,
  author       = {Martin Wolpers and
                  Guido Grohmann},
  title        = {{PROLEARN:} technology-enhanced learning and knowledge distribution
                  for the corporate world},
  journal      = {Int. J. Knowl. Learn.},
  volume       = {1},
  number       = {1/2},
  pages        = {44--61},
  year         = {2005},
  url          = {https://doi.org/10.1504/IJKL.2005.006250},
  doi          = {10.1504/IJKL.2005.006250},
  timestamp    = {Fri, 03 Jul 2020 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/ijkl/WolpersG05.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/ws/NejdlWSSSBL04,
  author       = {Wolfgang Nejdl and
                  Martin Wolpers and
                  Wolf Siberski and
                  Christoph Schmitz and
                  Mario T. Schlosser and
                  Ingo Brunkhorst and
                  Alexander L{\"{o}}ser},
  title        = {Super-peer-based routing strategies for RDF-based peer-to-peer networks},
  journal      = {J. Web Semant.},
  volume       = {1},
  number       = {2},
  pages        = {177--186},
  year         = {2004},
  url          = {https://doi.org/10.1016/j.websem.2003.11.004},
  doi          = {10.1016/J.WEBSEM.2003.11.004},
  timestamp    = {Sat, 09 Apr 2022 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/ws/NejdlWSSSBL04.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/caise/LoserSWN03,
  author       = {Alexander L{\"{o}}ser and
                  Wolf Siberski and
                  Martin Wolpers and
                  Wolfgang Nejdl},
  editor       = {Johann Eder and
                  Michele Missikoff},
  title        = {Information Integration in Schema-Based Peer-To-Peer Networks},
  booktitle    = {Advanced Information Systems Engineering, 15th International Conference,
                  CAiSE 2003, Klagenfurt, Austria, June 16-18, 2003, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {2681},
  pages        = {258--272},
  publisher    = {Springer},
  year         = {2003},
  url          = {https://doi.org/10.1007/3-540-45017-3\_19},
  doi          = {10.1007/3-540-45017-3\_19},
  timestamp    = {Tue, 14 May 2019 10:00:36 +0200},
  biburl       = {https://dblp.org/rec/conf/caise/LoserSWN03.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/caise/Wolpers03,
  author       = {Martin Wolpers},
  editor       = {Johann Eder and
                  Roland T. Mittermeir and
                  Barbara Pernici},
  title        = {Towards P2P-based information systems for E-learning using semantic
                  web technologies (Keynote Address)},
  booktitle    = {The 15th Conference on Advanced Information Systems Engineering (CAiSE
                  '03), Klagenfurt/Velden, Austria, 16-20 June, 2003, Workshops Proceedings,
                  Information Systems for a Connected Society},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {75},
  publisher    = {CEUR-WS.org},
  year         = {2003},
  url          = {https://ceur-ws.org/Vol-75/files/SW\_WL\_01.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:35 +0100},
  biburl       = {https://dblp.org/rec/conf/caise/Wolpers03.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/www/NejdlWSSSBL03,
  author       = {Wolfgang Nejdl and
                  Martin Wolpers and
                  Wolf Siberski and
                  Christoph Schmitz and
                  Mario T. Schlosser and
                  Ingo Brunkhorst and
                  Alexander L{\"{o}}ser},
  editor       = {Guszt{\'{a}}v Hencsey and
                  Bebo White and
                  Yih{-}Farn Robin Chen and
                  L{\'{a}}szl{\'{o}} Kov{\'{a}}cs and
                  Steve Lawrence},
  title        = {Super-peer-based routing and clustering strategies for RDF-based peer-to-peer
                  networks},
  booktitle    = {Proceedings of the Twelfth International World Wide Web Conference,
                  {WWW} 2003, Budapest, Hungary, May 20-24, 2003},
  pages        = {536--543},
  publisher    = {{ACM}},
  year         = {2003},
  url          = {https://doi.org/10.1145/775152.775229},
  doi          = {10.1145/775152.775229},
  timestamp    = {Sat, 09 Apr 2022 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/www/NejdlWSSSBL03.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ap2pc/WolpersBN02,
  author       = {Martin Wolpers and
                  Ingo Brunkhorst and
                  Wolfgang Nejdl},
  editor       = {Gianluca Moro and
                  Manolis Koubarakis},
  title        = {An O-Telos Provider Peer for the RDF-Based Edutella P2P-Network},
  booktitle    = {Agents and Peer-to-Peer Computing, First International Workshop, {AP2PC}
                  2002, Bologna, Italy, July, 2002, Revised and Invited Papers},
  series       = {Lecture Notes in Computer Science},
  volume       = {2530},
  pages        = {150--157},
  publisher    = {Springer},
  year         = {2002},
  url          = {https://doi.org/10.1007/3-540-45074-2\_15},
  doi          = {10.1007/3-540-45074-2\_15},
  timestamp    = {Tue, 14 May 2019 10:00:41 +0200},
  biburl       = {https://dblp.org/rec/conf/ap2pc/WolpersBN02.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/ecai/WolpersNB02,
  author       = {Martin Wolpers and
                  Wolfgang Nejdl and
                  Ingo Brunkhorst},
  editor       = {Siegfried Handschuh and
                  Nigel Collier and
                  Rose Dieng and
                  Steffen Staab},
  title        = {An O-Telos Provider Peer for the RDF-based Edutella P2P-network},
  booktitle    = {Proceedings of the {ECAI} 2002 Workshop on Semantic Authoring, Annotation
                  {\&} Knowledge Markup, SAAKM@ECAI 2002, Lyon, France, July 22-26,
                  2002},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {100},
  publisher    = {CEUR-WS.org},
  year         = {2002},
  url          = {https://ceur-ws.org/Vol-100/Martin\_Wolpers-et-al.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:14 +0100},
  biburl       = {https://dblp.org/rec/conf/ecai/WolpersNB02.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@phdthesis{DBLP:phd/dnb/Wolpers01,
  author       = {Martin Wolpers},
  title        = {Entwicklung und Implementierung eines modellgest{\"{u}}tzten
                  Datenrepositories: das KBS-Hyperbook-System},
  school       = {University of Hanover, Hannover, Germany},
  year         = {2001},
  url          = {http://edok01.tib.uni-hannover.de/edoks/e01dh01/338272542.pdf},
  urn          = {urn:nbn:de:gbv:089-3382725422},
  timestamp    = {Sat, 17 Jul 2021 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/phd/dnb/Wolpers01.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/kcap/NejdlDW01,
  author       = {Wolfgang Nejdl and
                  Hadhami Dhraief and
                  Martin Wolpers},
  editor       = {Siegfried Handschuh and
                  Rose Dieng and
                  Steffen Staab},
  title        = {OTelosRDF: {A} Resource Description Format with Enhanced MetaModeling
                  Functionalities Based on OTelos},
  booktitle    = {Proceedings of the {K-CAP} 2001 Workshop on Knowledge Markup and Semantic
                  Annotation Victoria, B.C., Canada, October 21, 2001},
  series       = {{CEUR} Workshop Proceedings},
  volume       = {99},
  publisher    = {CEUR-WS.org},
  year         = {2001},
  url          = {https://ceur-ws.org/Vol-99/Wolfgang\_Nejdl-et-al.pdf},
  timestamp    = {Fri, 10 Mar 2023 16:22:58 +0100},
  biburl       = {https://dblp.org/rec/conf/kcap/NejdlDW01.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/semweb/DhraiefNWW01,
  author       = {Hadhami Dhraief and
                  Wolfgang Nejdl and
                  Boris Wolf and
                  Martin Wolpers},
  editor       = {Isabel F. Cruz and
                  Stefan Decker and
                  J{\'{e}}r{\^{o}}me Euzenat and
                  Deborah L. McGuinness},
  title        = {Open Learning Repositories and Metadata Modeling},
  booktitle    = {Proceedings of SWWS'01, The first Semantic Web Working Symposium,
                  Stanford University, California, USA, July 30 - August 1, 2001},
  pages        = {495--514},
  year         = {2001},
  url          = {http://www.semanticweb.org/SWWS/program/full/paper38.pdf},
  timestamp    = {Sat, 09 Apr 2022 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/semweb/DhraiefNWW01.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@article{DBLP:journals/ki/HenzeNNW99,
  author       = {Nicola Henze and
                  Kabil Naceur and
                  Wolfgang Nejdl and
                  Martin Wolpers},
  title        = {Adaptive Hyperbooks for Constructivist Teaching},
  journal      = {K{\"{u}}nstliche Intell.},
  volume       = {13},
  number       = {4},
  pages        = {26--31},
  year         = {1999},
  timestamp    = {Tue, 14 Jul 2020 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/journals/ki/HenzeNNW99.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
@inproceedings{DBLP:conf/cscl/HenzeNW99,
  author       = {Nicola Henze and
                  Wolfgang Nejdl and
                  Martin Wolpers},
  editor       = {Christopher M. Hoadley and
                  Jeremy Roschelle},
  title        = {Modeling constructivist teaching functionality and structure in the
                  {KBS} Hyperbook System},
  booktitle    = {Proceedings of the 1999 Conference on Computer Support for Collaborative
                  Learning, {CSCL} 1999, Stanford, CA, USA, 1999},
  pages        = {28},
  publisher    = {International Society of the Learning Sciences},
  year         = {1999},
  url          = {https://repository.isls.org/handle/1/4322},
  timestamp    = {Sat, 09 Apr 2022 01:00:00 +0200},
  biburl       = {https://dblp.org/rec/conf/cscl/HenzeNW99.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
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