Elisabeth Lex

Ass.Prof. Dipl.-Ing. Dr.techn.

20072019
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Research Output 2007 2019

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Conference contribution
2018

The Impact of Semantic Context Cues on the User Acceptance of Tag Recommendations: An Online Study

Kowald, D., Seitlinger, P., Ley, T. & Lex, E., 6 Mar 2018, Companion Proceedings to the Web Conference 2018. p. 1-2

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Semantics
Personnel

Trust-based collaborative filtering: Tackling the cold start problem using regular equivalence

Duricic, T., Kowald, D., Lacic, E. & Lex, E., 27 Sep 2018, RecSys 2018 - 12th ACM Conference on Recommender Systems. Association of Computing Machinery, p. 446-450 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Collaborative filtering
Recommender systems
2017

Supporting collaborative learning with tag recommendations: a real-world study in an inquiry-based classroom project

Kopeinik, S., Lex, E., Seitlinger, P. C., Albert, D. & Ley, T. T., Mar 2017, In Proceedings of the Seventh International Learning Analytics & Knowledge Conference. Association of Computing Machinery, p. 409-418 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Temporal effects on hashtag reuse in Twitter: A cognitive-inspired hashtag recommendation approach

Kowald, D., Pujari, S. C. & Lex, E., 1 Jan 2017, 26th International World Wide Web Conference, WWW 2017. International World Wide Web Conferences Steering Committee, p. 1401-1410 10 p. 3052605

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Data storage equipment

The TagRec framework as a toolkit for the development of tag-based recommender systems

Kowald, D., Kopeinik, S. & Lex, E., 9 Jul 2017, UMAP 2017 - Adjunct Publication of the 25th Conference on User Modeling, Adaptation and Personalization. Association of Computing Machinery, p. 23-28 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Recommender systems
2016

A Sliding Window Approach to Natural Hand Gesture Recognition using a Custom Data Glove

Luzhnica, G., Simon, J. P., Lex, E. & Pammer-Schindler, V., 2016, Proceedings of the IEEE 3DUI 2016 Symposium on 3D User Interfaces.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

High Enough? Explaining and Predicting Traveler Satisfaction Using Airline Reviews

Kowald, D., Lacic, E. & Lex, E., 2016, Proceedings of the 27th ACM Conference on Hypertext and Social Media.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Named Entity Recognition for the Agricultural Domain

Malarkodi, CS., Lex, E. & Sobha, L. D., 2016, Proceedings of the 17th International Conference on Intelligent Text Processing and Computational Linguistics (CICLING 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Semantic Stability in Wikipedia

Stanisavljevic, D., Mavriqi-Hasani, I., Lex, E., Strohmaier, M. & Helic, D., 30 Nov 2016, Complex Networks & Their Applications V: Proceedings of the 5th International Workshop on Complex Networks and their Applications (COMPLEX NETWORKS 2016). Springer International Publishing AG , p. 379-390

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Take up my tags: Exploring benefits of meaning making in a collaborative learning task at the workplace

Dennerlein, S., Seitlinger, P., Lex, E. & Ley, T., 1 Jan 2016, Adaptive and Adaptable Learning - 11th European Conference on Technology Enhanced Learning, EC-TEL 2016, Proceedings. Verbert, K., Sharples, M. & Klobučar, T. (eds.). Springer Verlag Heidelberg, p. 377-383 7 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 9891 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Collaborative Learning
Social Learning
Field Study
Tagging
Manipulation

The Influence of Frequency, Recency and Semantic Context on the Reuse of Tags in Social Tagging Systems

Kowald, D. & Lex, E., 2016, Proceedings of the 27th ACM Conference on Hypertext and Social Media.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Using the hybrid social learning network to explore concepts, practices, designs and smart services for networked professional learning

Cook, J., Ley, T., Maier, R., Mor, Y., Santos, P., Lex, E., Dennerlein, S., Trattner, C. & Holley, D., 1 Jan 2016, State-of-the-Art and Future Directions of Smart Learning. Singapore: Springer, p. 123-129 7 p. (Lecture Notes in Educational Technology).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

social learning
informal learning
learning

Visualizing workplace learning data with the SSS Dashboard

Ruiz-Calleja, A., Dennerlein, S. M., Ley, T. & Lex, E., 2016, CrossLAK 2016 Learning Analytics Across Physical and Digital Spaces 2016: Proceedings of the First International Workshop on Learning Analytics Across Physical and Digital Spaces co-located with 6th International Conference on Learning Analytics & Knowledge (LAK 2016). Vol. 1601. (CEUR Workshop Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Which Algorithms Suit Which Learning Environments? A Comparative Study of Recommender Systems in TEL.

Kopeinik, S., Kowald, D. & Lex, E., Sep 2016, Adaptive and Adaptable Learning: 11th European Conference on Technology Enhanced Learning. Springer Verlag, Vol. 9891. p. 124-138 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2015

Attention Please! A Hybrid Resource Recommender Mimicking Attention-Interpretation Dynamics

Seitlinger, P. C., Kowald, D., Kopeinik, S., Hasani-Mavriqi, I., Ley, T. & Lex, E., 2015, Proceedings of 24th International World Wide Web Conference WWW’15. ., p. 339-345

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Evaluating Tag Recommender Algorithms in Real-World Folksonomies: A Comparative Study

Kowald, D. & Lex, E., 2015, Proceedings of RecSys'15. New York: Association of Computing Machinery, p. 505-509

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Open Access
File

Exploring Coverage and Distribution of Identifiers on the Scholarly Web

Kraker, P., Enkhbayar, A. & Lex, E., 2015, Proceedings of the 14th International Symposium of Information Science – ISI 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Influence of Status on Consensus Building in Collaboration Networks

Hasani-Mavriqi, I., Geigl, F., Pujari, S. C., Lex, E. & Helic, D., 2015, Proceedings of the IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Integrating data across workplace learning applications with a social semantic infrastructure

Ruiz-Calleja, A., Dennerlein, S. M., Tomberg, V., Ley, T. T., Theiler, D. & Lex, E., 2015, Advances in Web-Based Learning - ICWL 2015: 14th International Conference, Guangzhou, China. ., Vol. 9412. p. 208-217 10 p. (Lecture Notes in Computer Science).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

KnowBrain: An Online Social Knowledge Repository for Informal Workplace Learning

Dennerlein, S. M., Theiler, D., Marton, P., Santos, P., Cook, J., Lindstaedt, S. & Lex, E., 2015, Proceedings of the European Conference on Technology Enhanced Learning. ., p. 509-512 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Research Data Explored: Citations versus Altmetrics

Peters, I., Kraker, P., Lex, E., Gumpenberger, C. & Gorraiz, J., 2015, Proceedings of the International Society for Informetrics and Scientometrics – ISSI 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Research Data Explored II: the Anatomy and Reception of figshare

Kraker, P., Lex, E., Gorraiz, J., Gumpenberger, C. & Peters, I., 2015, Proceedings of the 20th International Conference on Science and Technology Indicators (STI 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

ScaR: Towards a Real-Time Recommender Framework Following the Microservices Architecture

Lacic, E., Traub, M., Kowald, D. & Lex, E., 2015, Proceedings of the Workshop on Large Scale Recommender Systems (LSRS2015) at RecSys 2015. ., p. ---

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Open Access
File

Smart Booking Without Looking: Providing Hotel Recommendations in the TripRebel Portal

Traub, M., Kowald, D., Lacic, E., Schoen, P., Supp, G. & Lex, E., 2015, Proceedings of the i-KNOW 2015 Conference. ., p. 50:1-50:4

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Social activity versus academic activity: A case study of computer scientists on twitter

Pujari, S. C., Hadgu, A. T., Lex, E. & Jäschke, R., 2015, Proceedings of the i-KNOW 2015 Conference. ., p. 0-12 12

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Supporting learning analytics for informal workplace learning with a social semantic infrastructure

Ruiz-Calleja, A., Dennerlein, S., Tomberg, V., Pata, K., Ley, T., Theiler, D. & Lex, E., 2015, Design for Teaching and Learning in a Networked World: 10th European Conference on Technology Enhanced Learning, EC-TEL 2015. Springer, p. 634-637 4 p. (Lecture Notes in Computer Science; vol. 9307).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Tackling Cold-Start Users in Recommender Systems with Indoor Positioning Systems

Lacic, E., Kowald, D., Traub, M., Luzhnica, G., Simon, J. P. & Lex, E., 2015, Poster Proceedings of the 9th {ACM} Conference on Recommender Systems. New York, NY, USA: Association of Computing Machinery, p. ---

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Open Access
File

The Influence of Social Status on Consensus Building in Collaboration Networks

Hasani-Mavriqi, I., Geigl, F., Pujari, S. C., Lex, E. & Helic, D., 2015, Proceedings of the 2015 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining. New York: Association of Computing Machinery, p. 162-169

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Open Access
File

The Social Semantic Server: A Flexible Framework to Support Informal Learning at the Workplace

Dennerlein, S. M., Kowald, D., Lex, E., Theiler, D., Lacic, E. & Ley, T. T., 2015, Proceedings of the 15th International Conference on Knowledge Management and Knowledge Technologies (i-Know '15). ., p. 0-1

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2014

What Really Works: Reflections on Applied Methods in a Real World Interdisciplinary Project

Lex, E., Kraker, P. & Dennerlein, S. M., 2014, (Accepted/In press) Interdisciplinary Coups to Calamities Workshop at ACM Web Science 2014. .

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2013

Eine Kombination von Regelbasierten und Statistischen Verfahren für die Hierarchische Klassifikation von Juristischen Dokumenten

Kienreich, W., Schulze, G., Lex, E. & Rapp, S., 2013, Internationales Rechtsinformatik-Symposion. ., p. 1-5

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Using Factual Density to Measure Informativeness of Web Documents

Horn, C., Zhila, A., Gelbukh, A., Kern, R. & Lex, E., 2013, Proceedings of the Nordic Conference on Computational Linguistics. ., p. 227-239 (Linköping Electronic Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Where am I? Using mobile sensor data to predict a user’s semantic place with a random forest algorithm

Lex, E., Pimas, O., Simon, J. & Pammer-Schindler, V., 1 Jan 2013, Mobile and Ubiquitous Systems: Computing, Networking, and Services - 9th International Conference, MobiQuitous 2012, Revised Selected Papers. Jiang, H., Zheng, K. & Li, M. (eds.). Springer Verlag Heidelberg, p. 64-75 12 p. (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering; vol. 120).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Accelerometers
Charging (batteries)
Semantics
Wireless local area networks (WLAN)
Mobile phones
2012

Maschinelle Lernverfahren für die Automatische Klassifikation von Juristischen Dokumenten

Lex, E., Rapp, S. & Kienreich, W., 2012, Conference proceedings IRIS 2012 - 15. Internationale Rechtsinformatik Symposion. ., p. 1-5

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Measuring the Quality of Web Content using Factual Information

Lex, E., Voelske, M., Errecalde, M., Ferretti, E., Cagnina, L., Horn, C., Stein, B. & Granitzer, M., 2012, Proceedings of the 2nd joint WICOW/AIRWeb workshop on web quality at WWW 2012. ., p. 7-10

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2011

Realtime Ad Hoc Search in Twitter: Know-Center at TREC Microblog Track 2011

Horn, C., Pimas, O., Granitzer, M. & Lex, E., 2011, Proceedings of TREC 2011. ., Vol. 500-295. p. 0-0 (NIST Special Publication).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Who Tweets: Detecting user types and Tweet quality using supervised classification

Horn, C., Lex, E. & Granitzer, M., 2011, Proceedings of the IADIS European Conference on Data Mining 2011. p. 153-157

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2010

A comparison of stylometric and lexical features for web genre classification and emotion classification in blogs

Lex, E., Juffinger, A. & Granitzer, M., 2010, IEEE Computer Society: 7th International Workshop on Text-based Information Retrieval in Procceedings of 21th International Conference on Database and Expert Systems Applications (DEXA 10). p. 10-14

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Assessing the Quality of Web Content

Lex, E., Khan, I., Bischof, H. & Granitzer, M., 2010, Proceedings of the ECML/PKDD Discovery Challenge 2010. ., p. 0-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Error Tolerant Large Scale FRBRization

Juffinger, A., Lex, E. & Freire, N., 2010, Proceedings of the Third Workshop on Very Large Digital Libraries (ECDL 2010). ., p. 47-59

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Facet Classification of Blogs: Know-Center at the TREC 2009 Blog Distillation Task

Lex, E., Granitzer, M. & Juffinger, A., 2010, Proceedings of the 18th Text REtrieval Conference. ., p. 0-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Knowledge Relationship Discovery and Visually Enhanced Access for the Media Domain

Granitzer, M., Kienreich, W., Sabol, V. & Lex, E., 2010, Medien-Wissen-Bildung. Explorationen visualisierter und kollaborativer Wissensräume (Conference Series). ., p. 46-58

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Objectivity Classification in Online Media

Lex, E., Juffinger, A. & Granitzer, M., 2010, 21st ACM SIGWEB Conference on Hypertext and Hypermedia (HT2010). ., p. 0-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Stylometric Features for Emotion Level Classification in News Related Blogs

Lex, E., Granitzer, M., Muhr, M. & Juffinger, A., 2010, Proceedings of the 9th ACM RIAO Conference. ., p. 0-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2009

A Novel Visualization Approach for Data-Mining-Related Classification

Seifert, C. & Lex, E., 2009, International Conference on Information Visualisation. Banissi, E. (ed.). Piscataway, NJ: Institute of Electrical and Electronics Engineers, p. 490-495

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Automated Blog Classification: A Cross Domain Approach

Lex, E., Seifert, C., Granitzer, M. & Juffinger, A., 2009, Proceedings of IADIS International Conference. ., p. 0-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Blog credibility ranking by exploiting verified content

Juffinger, A., Granitzer, M. & Lex, E., 2009, Proceedings of the 3rd workshop on Information credibility on the web. ., p. 51-58

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Content Based Quality And Credibility Assessment For Blogs

Lex, E., 2009, IADIS International Conference on WWW/Internet. ., p. x-x

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Cross-Domain Classification: Trade-Off between Complexity and Accuracy

Lex, E., Seifert, C., Juffinger, A. & Granitzer, M., 2009, Proceedings of the 4th International Conference for Internet Technology and Secured Transactions (ICITST) (2009). ., p. 0-0

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Crosslanguage blog mining and trend visualisation

Juffinger, A. & Lex, E., 1 Dec 2009, WWW'09 - Proceedings of the 18th International World Wide Web Conference. p. 1149-1150 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Blogs
Visualization