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ORCIDKatja Niemann
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2010 – 2019
- 2018
[p2]Katja Niemann, Daniel Kohlsdorf, Fabian Abel:
Job Recommendations: The XING Case. Collaborative Recommendations 2018: 571-598- 2016
- [j4]José A. Ruipérez-Valiente
, Pedro J. Muñoz Merino, Carlos Delgado Kloos, Katja Niemann, Maren Scheffel, Martin Wolpers:
Analyzing the Impact of Using Optional Activities in Self-Regulated Learning. IEEE Trans. Learn. Technol. 9(3): 231-243 (2016) - 2015
- [b1]Katja Niemann:
Discovery of usage based item similarities to support recommender systems in dealing with rarely used items. RWTH Aachen University, Germany, 2015 - [j3]Katja Niemann, Martin Wolpers:
Creating Usage Context-Based Object Similarities to Boost Recommender Systems in Technology Enhanced Learning. IEEE Trans. Learn. Technol. 8(3): 274-285 (2015) - [c29]Katja Niemann:
Automatic Tagging of Learning Objects Based on Their Usage in Web Portals. EC-TEL 2015: 240-253 - [c28]Katja Niemann, Maren Scheffel, Sarah León Rojas, Martin Wolpers, Hendrik Drachsler, Marcus Specht:
Getting a Grasp on Tag Collections by Visualising Tag Clusters Based on Higher-order Co-occurrences. VISLA@LAK 2015: 14-18 - [c27]Katja Niemann:
Increasing the accessibility of learning objects by automatic tagging. LAK 2015: 414-415 - [p1]Katja Niemann:
Ermittlung nutzungsbasierter Ähnlichkeiten zwischen Objekten zur Unterstützung von Empfehlungssystemen im Umgang mit selten genutzten Objekten [Discovery of usage-based item similarities to support recommender systems in dealing with rarely used items]. Ausgezeichnete Informatikdissertationen 2015: 229-238 - 2014
- [c26]Katja Niemann, Martin Wolpers:
Usage-Based Clustering of Learning Resources to Improve Recommendations. EC-TEL 2014: 317-330 - [c25]José A. Ruipérez-Valiente, Pedro J. Muñoz Merino, Carlos Delgado Kloos, Katja Niemann, Maren Scheffel:
Do Optional Activities Matter in Virtual Learning Environments? EC-TEL 2014: 331-344 - [c24]Maren Scheffel, Katja Niemann, Sarah León Rojas, Hendrik Drachsler, Marcus Specht:
Spiral me to the core: Getting a visual grasp on text corpora through clusters and keywords. LAK Workshops 2014 - 2013
- [j2]Enayat Rajabi, Wolfgang Greller, Katja Niemann, Kostas Kastrantas, Salvador Sánchez-Alonso:
Social data interoperability in educational repositories and federations. Int. J. Metadata Semant. Ontologies 8(2): 169-178 (2013) - [c23]Katja Niemann, Martin Wolpers:
Usage Context-Boosted Filtering for Recommender Systems in TEL. EC-TEL 2013: 246-259 - [c22]Katja Niemann, Martin Wolpers:
A new collaborative filtering approach for increasing the aggregate diversity of recommender systems. KDD 2013: 955-963 - [c21]Katja Niemann, Martin Wolpers, Giannis Stoitsis, Georgios Chinis, Nikos Manouselis:
Aggregating social and usage datasets for learning analytics: data-oriented challenges. LAK 2013: 245-249 - [c20]Ricardo Kawase, Marco Fisichella, Katja Niemann, Vassilis Pitsilis, Aristides Vidalis, Philipp Holtkamp, Bernardo Pereira Nunes:
OpenScout: harvesting business and management learning objects from the web of data. WWW (Companion Volume) 2013: 445-450 - 2012
- [c19]Katja Niemann, Maren Scheffel, Martin Wolpers:
A Comparison of Usage Data Formats for Recommendations in TEL. RecSysTEL@EC-TEL 2012: 95-100 - [c18]Alexander Nussbaumer, Maren Scheffel, Katja Niemann, Milos Kravcik, Dietrich Albert:
Detecting and Reflecting Learning Activities in Personal Learning Environments. ARTEL@EC-TEL 2012: 125-131 - [c17]Maren Scheffel, Katja Niemann, Derick Leony, Abelardo Pardo, Hans-Christian Schmitz, Martin Wolpers, Carlos Delgado Kloos:
Key Action Extraction for Learning Analytics. EC-TEL 2012: 320-333 - [c16]Katja Niemann, Hans-Christian Schmitz, Uwe Kirschenmann, Martin Wolpers, Anna Schmidt, Tim Krones:
Clustering by usage: higher order co-occurrences of learning objects. LAK 2012: 238-247 - 2011
- [c15]Maren Scheffel, Katja Niemann, Abelardo Pardo, Derick Leony, Martin Friedrich, Kerstin Schmidt, Martin Wolpers, Carlos Delgado Kloos:
Usage Pattern Recognition in Student Activities. EC-TEL 2011: 341-355 - [c14]Marc-Andre Orthmann, Martin Friedrich, Uwe Kirschenmann, Katja Niemann, Maren Scheffel, Hans-Christian Schmitz, Martin Wolpers:
Usage-based Clustering of Learning Objects for Recommendation. ICALT 2011: 553-557 - [c13]Martin Wolpers, Martin Memmel, Katja Niemann, Joris Klerkx, Marcus Specht, Alberto Giretti, Erik Duval:
Aggregating metadata to improve access to resources. IRI 2011: 187-192 - [c12]Katja Niemann, Hans-Christian Schmitz, Maren Scheffel, Martin Wolpers:
Usage contexts for object similarity: exploratory investigations. LAK 2011: 81-85 - [c11]Kyung-Hun Ha, Katja Niemann, Uta Schwertel, Philipp Holtkamp, Henri Pirkkalainen, Dirk Börner, Marco Kalz, Vassilis Pitsilis, Ares Vidalis, Dimitra Pappa, Markus Bick, Jan M. Pawlowski, Martin Wolpers:
A Novel Approach towards Skill-Based Search and Services of Open Educational Resources. MTSR 2011: 312-323 - 2010
- [j1]Katja Niemann, Maren Scheffel, Martin Friedrich, Uwe Kirschenmann, Hans-Christian Schmitz, Martin Wolpers:
Usage-based Object Similarity. J. Univers. Comput. Sci. 16(16): 2272-2290 (2010) - [c10]Uwe Kirschenmann, Maren Scheffel, Martin Friedrich, Katja Niemann, Martin Wolpers:
Demands of Modern PLEs and the ROLE Approach. EC-TEL 2010: 167-182 - [c9]Maren Scheffel, Martin Friedrich, Katja Niemann, Uwe Kirschenmann, Martin Wolpers:
A Framework for the Domain-Independent Collection of Attention Metadata. EC-TEL 2010: 426-431 - [c8]Martin Memmel, Martin Wolpers, Massimiliano Condotta, Katja Niemann, Rafael Schirru:
Introducing a Social Backbone to Support Access to Digital Resources. EC-TEL 2010: 560-565 - [c7]Katja Niemann, Uta Schwertel, Marco Kalz, Alexander Mikroyannidis, Marco Fisichella, Martin Friedrich, Michele Dicerto, Kyung-Hun Ha, Philipp Holtkamp, Ricardo Kawase:
Skill-Based Scouting of Open Management Content. EC-TEL 2010: 632-637 - [c6]Pedro J. Muñoz Merino, Abelardo Pardo, Carlos Delgado Kloos, Mario Muñoz Organero, Martin Wolpers, Katja Niemann, Martin Friedrich:
CAM in the semantic web world. I-SEMANTICS 2010 - [c5]Katja Niemann, Martin Wolpers:
Enabling the Use of Real World Objects to Improve Learning. ICALT 2010: 259-263
2000 – 2009
- 2009
- [c4]Hans-Christian Schmitz, Maren Scheffel, Martin Friedrich, Marco Jahn, Katja Niemann, Martin Wolpers:
CAMera for PLE. EC-TEL 2009: 507-520 - [c3]Maren Scheffel, Martin Friedrich, Marco Jahn, Uwe Kirschenmann, Katja Niemann, Hans-Christian Schmitz, Martin Wolpers:
Self-monitoring for Computer Users. GI Jahrestagung 2009: 1680-1687 - [c2]Martin Wolpers, Katja Niemann, Christian Prause:
Metadata Representation of Real-World Objects for Architectural Education. ICALT 2009: 465-467 - 2008
- [c1]Katja Niemann, Martin Wolpers:
Modeling vocabularies in the architectural domain. ICDIM 2008: 314-319
Coauthor Index
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