Identification of User's Learning Goals in Workflows. - Oleg Rostanin; Rafael Schirru (EC-TEL Workshops, 2006)

ALOE - A Socially Aware Learning Resource and Metadata Hub. - Martin Memmel; Rafael Schirru (EC-TEL (Posters), 2007)

Towards the Combined Use of Metadata to Improve the Learning Experience. - Martin Memmel; Rafael Schirru; Martin Wolpers; Eleftheria Tomadaki (ICALT, 2008)

Providing Multi Source Tag Recommendations in a Social Resource Sharing Platform. - Martin Memmel; Michael Kockler; Rafael Schirru (J. Univers. Comput. Sci., 2009)

Towards a Storytelling Approach for Novel Artist Recommendations. - Stephan Baumann 001; Rafael Schirru; Bernhard Streit (Adaptive Multimedia Retrieval, 2010)

Introducing a Social Backbone to Support Access to Digital Resources. - Martin Memmel; Martin Wolpers; Massimiliano Condotta; Katja Niemann; Rafael Schirru (EC-TEL, 2010)

Domain-Specific Identification of Topics and Trends in the Blogosphere. - Rafael Schirru; Darko Obradovic; Stephan Baumann 001; Peter Wortmann (ICDM, 2010)

Automatic Sentiment Monitoring of Specific Topics in the Blogosphere. - Fernanda S. Pimenta; Darko Obradovic; Rafael Schirru; Stephan Baumann 001; Andreas Dengel 001 (NyNaK, 2010)

Topic-based recommendations in enterprise social media sharing platforms. - Rafael Schirru (RecSys, 2010)

Extraction of Contextualized User Interest Profiles in Social Sharing Platforms. - Rafael Schirru; Stephan Baumann 001; Martin Memmel; Andreas Dengel 001 (J. Univers. Comput. Sci., 2010)

Topic-Based Recommendations for Enterprise 2.0 Resource Sharing Platforms. - Rafael Schirru; Stephan Baumann 001; Martin Memmel; Andreas Dengel 001 (KES (1), 2011)

Towards Context-Sensitive Music Recommendations Using Multifaceted User Profiles. - Rafael Schirru; Stephan Baumann 001; Christian Freye; Andreas Dengel 001 (Semantic Audio, 2011)

Matching Points of Interest from Different Social Networking Sites. - Tatjana Scheffler; Rafael Schirru; Paul Lehmann (KI, 2012)

Filtering Relevant Facebook Status Updates for Users of Mobile Devices. - Stephan Baumann 001; Rafael Schirru; Joachim Folz (ICAART (1), 2013)

Contextualized recommendations for the socio-semantic web. - Rafael Schirru (2013)

Providing recommendations for horizontal career change. - Stefan Buschner; Rafael Schirru; Hanna Zieschang; Peter Junker (I-KNOW, 2014)