GroupMe! - Where Semantic Web meets Web 2.0 . - Fabian Abel; Mischa Frank; Nicola Henze; Daniel Krause 002; Daniel Plappert; Patrick Siehndel (Semantic Web Challenge, 2007)

GroupMe! - Combining Ideas of Wikis, Social Bookmarking, and Blogging. - Fabian Abel; Mischa Frank; Nicola Henze; Daniel Krause 002; Patrick Siehndel (ICWSM, 2008)

Analyzing the Blogosphere for Predicting the Success of Music and Movie Products. - Fabian Abel; Ernesto Diaz-Aviles; Nicola Henze; Daniel Krause 002; Patrick Siehndel (ASONAM, 2010)

TagMe!: Enhancing Social Tagging with Spatial Context. - Fabian Abel; Nicola Henze; Ricardo Kawase; Daniel Krause 002; Patrick Siehndel (WEBIST (Selected Papers), 2010)

The Art of Multi-faceted Tagging - Interweaving Spatial Annotations, Categories, Meaningful URIs and Tags. - Fabian Abel; Ricardo Kawase; Daniel Krause 002; Patrick Siehndel; Nicole Ullmann (WEBIST (2), 2010)

Towards a Framework for Adaptive Faceted Search on Twitter. - Fabian Abel; Ilknur Celik; Patrick Siehndel (DAH@HT, 2011)

Leveraging the Semantics of Tweets for Adaptive Faceted Search on Twitter. - Fabian Abel; Ilknur Celik; Geert-Jan Houben; Patrick Siehndel (ISWC (1), 2011)

Exploiting Social #-Tagging Behavior in Twitter for Information Filtering and Recommendation. - Ernesto Diaz-Aviles; Patrick Siehndel; Kaweh Djafari Naini (TREC, 2011)

Predicting the Future Impact of News Events. - Julien Gaugaz; Patrick Siehndel; Gianluca Demartini; Tereza Iofciu; Mihai Georgescu; Nicola Henze (ECIR, 2012)

Towards Automatic Competence Assignment of Learning Objects. - Ricardo Kawase; Patrick Siehndel; Bernardo Pereira Nunes; Marco Fisichella; Wolfgang Nejdl (EC-TEL, 2012)

Hyperlink of Men. - Ricardo Kawase; Patrick Siehndel; Eelco Herder; Wolfgang Nejdl (LA-WEB, 2012)

TwikiMe! - User Profiles That Make Sense. - Patrick Siehndel; Ricardo Kawase (ISWC (Posters & Demos), 2012)

Daily and weekly patterns in human mobility. - Eelco Herder; Patrick Siehndel (UMAP Workshops, 2012)

Bridging the Gap - Using External Knowledge Bases for Context-Aware Document Retrieval. - Benjamin Köhncke; Patrick Siehndel; Wolf-Tilo Balke (ICADL, 2013)

Content-Based Movie Recommendation within Learning Contexts. - Ricardo Kawase; Bernardo Pereira Nunes; Patrick Siehndel (ICALT, 2013)

Automatic Competence Leveling of Learning Objects. - Ricardo Kawase; Patrick Siehndel; Bernardo Pereira Nunes; Marco Fisichella (ICALT, 2013)

As Simple as It Gets - A Sentence Simplifier for Different Learning Levels and Contexts. - Bernardo Pereira Nunes; Ricardo Kawase; Patrick Siehndel; Marco A. Casanova; Stefan Dietze (ICALT, 2013)

Finding relevant missing references in learning courses. - Patrick Siehndel; Ricardo Kawase; Asmelash Teka Hadgu; Eelco Herder (WWW (Companion Volume), 2013)

Cross-Domain Analysis of the Blogosphere for Trend Prediction. - Patrick Siehndel; Fabian Abel; Ernesto Diaz-Aviles; Nicola Henze; Daniel Krause 002 (The Influence of Technology on Social Network Analysis and Mining, 2013)

Technology Enhancing Learning: Past, Present and Future. - Ricardo Kawase; Patrick Siehndel; Ujwal Gadiraju (EC-TEL, 2014)

Recognizing skill networks and their specific communication and connection practices. - Sergiu Chelaru; Eelco Herder; Kaweh Djafari Naini; Patrick Siehndel (HT, 2014)

Exploiting the wisdom of the crowds for characterizing and connecting heterogeneous resources. - Ricardo Kawase; Patrick Siehndel; Bernardo Pereira Nunes; Eelco Herder; Wolfgang Nejdl (HT, 2014)

To the Point: A Shortcut to Essential Learning. - Ricardo Kawase; Patrick Siehndel; Bernardo Pereira Nunes (ICALT, 2014)

Supporting Contextualized Information Finding with Automatic Excerpt Categorization. - Ricardo Kawase; Patrick Siehndel; Bernardo Pereira Nunes (KES, 2014)

Towards a Semantically Enriched Online Newspaper. - Ricardo Kawase; Eelco Herder; Patrick Siehndel (ISWC (Posters & Demos), 2014)

Identifying Topic-Related Hyperlinks on Twitter. - Patrick Siehndel; Ricardo Kawase; Eelco Herder; Thomas Risse 001 (ISWC (Posters & Demos), 2014)

Predicting User Locations and Trajectories. - Eelco Herder; Patrick Siehndel; Ricardo Kawase (UMAP, 2014)

Towards Automatic Building of Learning Pathways. - Patrick Siehndel; Ricardo Kawase; Bernardo Pereira Nunes; Eelco Herder (WEBIST (2), 2014)

Haters gonna hate: job-related offenses in twitter. - Ricardo Kawase; Patrick Siehndel; Eelco Herder (WWW (Companion Volume), 2014)

ARCOMEM Crawling Architecture. - Vassilis Plachouras; Florent Carpentier; Muhammad Faheem 002; Julien Masanès; Thomas Risse 001; Pierre Senellart; Patrick Siehndel; Yannis Stavrakas (Future Internet, 2014)

The ARCOMEM Architecture for Social- and Semantic-Driven Web Archiving. - Thomas Risse 001; Elena Demidova; Stefan Dietze; Wim Peters; Nikolaos Papailiou; Katerina Doka; Yannis Stavrakas; Vassilis Plachouras; Pierre Senellart; Florent Carpentier; Amin Mantrach; Bogdan Cautis; et al. (Future Internet, 2014)

Breaking Bad: Understanding Behavior of Crowd Workers in Categorization Microtasks. - Ujwal Gadiraju; Patrick Siehndel; Besnik Fetahu; Ricardo Kawase (HT, 2015)

What does Twitter Measure?: Influence of Diverse User Groups in Altmetrics. - Simon Barthel; Sascha Tönnies; Benjamin Köhncke; Patrick Siehndel; Wolf-Tilo Balke (JCDL, 2015)

Unlock the Stock: User Topic Modeling for Stock Market Analysis. - Patrick Siehndel; Ujwal Gadiraju (EDBT/ICDT Workshops, 2016)

Estimating domain specificity for effective crowdsourcing of link prediction and schema mapping. - Ujwal Gadiraju; Patrick Siehndel; Stefan Dietze (WebSci, 2016)

Using Worker Self-Assessments for Competence-Based Pre-Selection in Crowdsourcing Microtasks. - Ujwal Gadiraju; Besnik Fetahu; Ricardo Kawase; Patrick Siehndel; Stefan Dietze (ACM Trans. Comput. Hum. Interact., 2017)