Denis Helic

Assoc.Prof. Dipl.-Ing. Dr.techn.

19972020
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Forschungsoutput 1997 2019

2019

Activity Archetypes in Question-and-Answer (Q&A) Websites—A Study of 50 Stack Exchange Instances

Teixeira dos Santos, T., Walk, S., Kern, R., Strohmaier, M. & Helic, D., 2019, in : ACM Transactions on Social Computing. 2, 1, 23 S., 4.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Consensus Dynamics in Online Collaboration Networks

Hasani-Mavriqi, I., Jan 2019, 208 S.

Publikation: StudienabschlussarbeitDissertationForschung

Datei
Social sciences
Physics
Electric network analysis
Large scale systems

Self- and Cross-Excitation in Stack Exchange Question & Answer Communities

Teixeira dos Santos, T., Walk, S., Kern, R., Strohmaier, M. & Helic, D., 2019, The Web Conference (WWW). Association of Computing Machinery, 11 S.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

2018

Consensus dynamics in online collaboration systems

Hasani-Mavriqi, I., Kowald, D., Helic, D. & Lex, E., 1 Dez 2018, in : Computational Social Networks. 5, 1, 2.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Online systems
Opinion Dynamics
Experiments
Collaboration
Game

Invited papers from the ACM conference on hypertext and social media

Bonchi, F., Dolog, P., Helic, D. & Vojtas, P., 3 Apr 2018, in : New Review of Hypermedia and Multimedia. 24, 2, S. 61-62 2 S.

Publikation: Beitrag in einer FachzeitschriftEditorialForschungBegutachtung

Modeling peer influence in time-varying networks

Wölbitsch, M., Walk, S. & Helic, D., 1 Jan 2018, Complex Networks and Their Applications VI - Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications). Springer Verlag Heidelberg, S. 353-364 12 S. (Studies in Computational Intelligence; Band 689).

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Time varying networks
Online systems
Specifications

Tag-based navigation and visualization

Dimitrov, D., Helic, D. & Strohmaier, M., 1 Jan 2018, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Springer Verlag Heidelberg, S. 181-212 32 S. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Band 10100 LNCS).

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in Buch/BerichtForschungBegutachtung

Tagging
Navigation
Visualization
User interfaces
Web-based

Unsupervised learning for mental stress detection exploration of self-organizing maps

Huysmans, D., Smets, E., De Raedt, W., Van Hoof, C., Bogaerts, K., Van Diest, I. & Helic, D., 1 Jan 2018, BIOSIGNALS 2018 - 11th International Conference on Bio-Inspired Systems and Signal Processing, Proceedings; Part of 11th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2018. SciTePress 2013, Band 4. S. 26-35 10 S.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Unsupervised learning
Self organizing maps
Electrocardiography
Skin
Labels

User Behavioral Patterns and Early Dropouts Detection: Improved Users Profiling through Analysis of Successive Offering of MOOC

Vitiello, M., Walk, S., Helic, D., Chang, V. & Gütl, C., 2018, in : Journal of Universal Computer Science . 24, 8, S. 1131-1150

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

2017

A method for evaluating the navigability of recommendation algorithms

Lamprecht, D., Strohmaier, M. & Helic, D., 2017, in : Studies in Computational Intelligence. 693, S. 247-259 13 S.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Arsenals
Information retrieval

Comparing Hypotheses About Sequential Data: A Bayesian Approach and Its Applications

Lemmerich, F., Singer, P., Becker, M., Espin-Noboa, L., Dimitrov, D., Helic, D., Hotho, A. & Strohmaier, M., 2017, Machine Learning and Knowledge Discovery in Databases - European Conference, ECML PKDD 2017, Proceedings. Springer Verlag Wien, Band 10536 LNAI. S. 354-357 4 S. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Band 10536 LNAI).

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Bayesian Approach
Markov processes
Websites
Testing
Markov Chain Model

Exploring the Impact of Trolls on Activity Dynamics in Real-World Collaboration Networks

Koncar, P., Walk, S., Helic, D. & Strohmaier, M., 3 Apr 2017, Proceedings of the 26th International Conference on World Wide Web Companion. S. 1573-1578 6 S.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Websites
Semantics

MOOC Dropouts: A Multi-system Classifier

Vitiello, M., Walk, K., Chang, V., Hernandez Rizzardini, R., Helic, D. & Gütl, C., 2017, Data Driven Approaches in Digital Education: Proceedings of 12th European Conference on Technology Enhanced Learning (EC-TEL 2017). Springer, S. 300-314 15 S.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Nonlinear characterization of activity dynamics in online collaboration websites

Teixeira dos Santos, T., Walk, S. & Helic, D., 2017, Proceedings of the 26th International Conference on World Wide Web Companion.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Predicting Dropouts on the Successive Offering of a MOOC

Vitiello, M., Walk, S., Helic, D., Chang, V. & Gütl, C., 2017, MOOC-MAKER 2017: Proceedings of the International Conference MOOC-MAKER 2017. S. 11-20 10 S.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Semantic stability in wikipedia

Stanisavljevic, D., Hasani-Mavriqi, I., Lex, E., Strohmaier, M. & Helic, D., 1 Jan 2017, in : Studies in Computational Intelligence. 693, S. 385-395 11 S.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Semantics
2016

Classifying students to improve MOOC dropout rates

Vitiello, M., Walk, S., Rizzardini, R., Helic, D. & Gütl, C., 2016, Proceedings of the EUROPEAN STAKEHOLDER SUMMIT on experiences and best practices in and around MOOCs (EMOOCS 2016). S. 501-508

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

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 , S. 379-390

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

The influence of social status and network structure on consensus building in collaboration networks

Mavriqi-Hasani, I., Geigl, F., Pujari, S. C., Lex, E. & Helic, D., 15 Sep 2016, in : Social Network Analysis and Mining. 6, 1, S. 1 17 S.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Open Access
Datei
social status
social network
social class
simulation
2015

How to Apply Markov Chains for Modeling Sequential Edit Patterns in Collaborative Ontology-Engineering Projects

Walk, S., Singer, P., Strohmaier, M., Helic, D., Noy, N. & Musen, M., 2015, in : International Journal of Human-Computer Studies. 84, S. 51-66

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Hyptrails: A bayesian approach for comparing hypotheses about human trails on the web

Singer, P., Helic, D., Hotho, A. & Strohmaier, M., 2015, International World Wide Web Conference. ., S. 1003-1013

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Improving recommender system navigability through diversification: a case study of IMDb

Lamprecht, D., Geigl, F., Karas, T., Walk, S., Helic, D. & Strohmaier, M., 2015, International Conference on Knowledge Management. ., S. 21:1-21:8

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Open Access
Datei

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).

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Photowalking the City: Comparing Hypotheses About Urban Photo Trails on Flickr

Becker, M., Singer, P., Lemmerich, F., Hotho, A., Helic, D. & Strohmaier, M., 2015, Proceedings of the 7th International Conference on Social Informatics, SocInfo 2015. ., S. 227-244

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Quo vadis? On the effects of Wikipedia’s policies on navigation

Lamprecht, D., Helic, D. & Strohmaier, M., 2015, Wikipedia, a Social Pedia: Research Challenges and Opportunities. ., S. 64-66

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Random surfers on a web encyclopedia

Geigl, F., Lamprecht, D., Hofmann-Wellenhof, R., Walk, S., Strohmaier, M. & Helic, D., 2015, International Conference on Knowledge Management. ., S. 5:1-5:8

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

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, S. 162-169

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Open Access
Datei

The Role of Structural Information for Designing Navigational User Interfaces

Dimitrov, D., Singer, P., Helic, D. & Strohmaier, M., 2015, ACM Conference on Hypertext and Hypermedia. ., S. 59-68

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Using ontologies to model human navigation behavior in information networks: A study based on Wikipedia

Lamprecht, D., Strohmaier, M., Helic, D., Nyulas, C., Tudorache, T., Nox, N. F. & Musen, M. A., 2015, in : Semantic web. 6, 4, S. 403-422

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

VizTrails: An Information Visualization Tool for Exploring Geographic Movement Trajectories

Becker, M., Singer, P., Lemmerich, F., Hotho, A., Helic, D. & Strohmaier, M., 2015, ACM Conference on Hypertext and Hypermedia. ., S. 319-320

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

2014

Detecting Memory and Structure in Human Navigation Patterns Using Markov Chain Models of Varying Order

Singer, P., Helic, D., Taraghi, B. & Strohmaier, M., 2014, in : PLoS ONE. 9, 12, S. 9(12)-9(12)

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Memory and Structure in Human Navigation Patterns

Singer, P., Helic, D., Taraghi, B. & Strohmaier, M., 2014, (Eingereicht) in : arXiv.org e-Print archive.

Publikation: Beitrag in einer FachzeitschriftArtikelForschung

Regular equivalence in informed network search

Helic, D., 2014, International Convention on Information and Communication Technology, Electronics and Microelectronics. ., S. 1088-1093

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

The Role of Homophily and Popularity in Informed Decentralized Search

Geigl, F. & Helic, D., 2014, Proceedings of the 2nd International Workshop on Dynamic Networks and Knowledge Discovery. ., S. ---

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

2013

Models of human navigation in information networks based on decentralized search

Helic, D., Strohmaier, M., Granitzer, M. & Scherer, R., 2013, ACM Conference on Hypertext and Hypermedia. ., S. 89-98

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Navigational evaluation of breadth first search spanning trees

Helic, D., Strohmaier, M. & Wojcik, W., 2013, Information & Communication Technology Electronics & Microelectronics (MIPRO). ., S. 998-1003

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Predicting Social Interactions from Different Sources of Location-based Knowledge

Steurer, M., Trattner, C. & Helic, D., 2013, The Third International Conference on Social Eco-Informatics. ., S. 8-13

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

2012

Analyzing User Click Paths in a Wikipedia Navigation Game

Helic, D., 2012, Proceedings of MIPRO 2007, International Convention on Information and Communication Technology, Electronics, and Microelectronics. ., S. 374-379

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Evaluation of Folksonomy Induction Algorithms

Strohmaier, M., Helic, D., Benz, D., Körner, C. & Kern, R., 2012, in : ACM Transactions on Intelligent Systems and Technology. 3, 4, S. 74:1-74:2

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Exploring the differences and similarities between hierarchical decentralized search and human navigation in information networks

Trattner, C., Helic, D., Singer, P. & Strohmaier, M., 2012, (Angenommen/In Druck) Proceedings of the 12th International Conference on Knowledge Management and Knowledge Technologies. .

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

How do Social Networks Influence Learning Outcomes? A Case Study in an Industrial Setting

Maglajlic, S. & Helic, D., 2012, in : Interactive technology and smart education. 9, 2, S. 74-88

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Navigational Efficiency of Broad vs. Narrow Folksonomies

Helic, D., Körner, C., Granitzer, M., Strohmaier, M. & Trattner, C., 2012, Proceedings of the 23rd ACM Conference on Hypertext and Social Media. NY, New York: Association of Computing Machinery, S. 63-72

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

2011

Are Tag Clouds Useful for Navigation? A Network-Theoretic Analysis

Helic, D., Trattner, C., Strohmaier, M. & Andrews, K., 2011, in : International journal of social computing and cyber-physical systems. 1, 1, S. 33-55

Publikation: Beitrag in einer FachzeitschriftArtikelForschung

Building Directories for Social Tagging Systems

Helic, D. & Strohmaier, M., 2011, In 20th ACM Conference on Information and Knowledge Management (CIKM 2011). ., S. 0-0

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Enhancing the Navigability of Social Tagging Systems with Tag Taxonomies

Trattner, C., Körner, C. & Helic, D., 2011, (Angenommen/In Druck) International Conference on Knowledge Management. NY: Association of Computing Machinery

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Implementation of a Wiki-based Information and Communication System for Academia Europaea

Hasani-Mavriqi, I., Helic, D., Leitner, H. & Maurer, H., 2011, Proceedings of the ITI 2011, 33rd International Conference on Information Technology Interfaces. Zagreb: ., S. 193-198

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

On the Construction of Efficiently Navigable Tag Clouds Using Knowledge From Structured Web Content

Trattner, C., Helic, D. & Strohmaier, M., 2011, in : Journal of Universal Computer Science . 17, 4, S. 565-582

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Pragmatic Evaluation of Folksonomies

Helic, D., Strohmaier, M., Trattner, C., Muhr, M. & Lerman, K., 2011, Proceedings of the 20th international conference on World wide web (WWW '11). NY: Association of Computing Machinery, S. 417-426

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

The Effects of Navigation Tools on the Navigability of Web-Based Information Systems

Helic, D., Hasani-Mavriqi, I., Wilhelm, S. & Strohmaier, M., 2011, Proceedings of the 11th International Conference on Knowledge Management and Knowledge Technologies. New York, NY, USA: Association of Computing Machinery, S. 01-08

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung