Welcome to the event website of DIR13, 26 April 2013.

Building 8, Faculty of Architecture
Julianalaan 134, 2628 BD, Delft

08:00 - 08:45 Registration

08:45 - 09:00 Opening Session

09:00 - 10:00 Keynote
Norbert Fuhr: The Return of the Probability of Relevance

10:00 - 10:30 Break

10:30 - 12:30 Session 1: Research Papers
Chair: Thomas Demeester

An Adaptive Window-Size Approach for Expert-Finding
Fawaz Alarfaj, Udo Kruschwitz and Chris Fox

Distributional Similarity of Words with Different
Christian Wartena

Exploring Real-Time Temporal Query Auto-Completion
Stewart Whiting, James McMinn and Joemon Jose

Exploiting Semantic Relatedness Measures for
Multi-label Classifier Evaluation
Christophe Deloo and Claudia Hauff

Estimating the Time between Twitter Messages and
Future Events
Ali Hürriyetoğlu, Florian Kunneman and Antal van Den Bosch

On the Assessment of Expertise Profiles
Richard Berendsen, Krisztian Balog, Toine Bogers,
Antal Van Den Bosch and Maarten De Rijke

12:30 - 12:40 Award Ceremony

12:40 - 14:00 Lunch & Poster / Demo Session

14:00 - 16:00 Session 2: Compressed Papers I
Chair: Jeroen Vuurens
Towards Optimum Query Segmentation: In Doubt

Matthias Hagen, Martin Potthast, Anna Beyer and
Benno Stein

Reusing Historical Interaction Data for Faster Online
Learning to Rank for IR
Katja Hofmann, Anne Schuth, Shimon Whiteson and
Maarten de Rijke

Reliability and Validity of Query Intent Assessments
Suzan Verberne, Maarten van der Heijden, Max Hinne,
Maya Sappelli, Saskia Koldijk and Eduard Hoenkamp

What Snippets Say About Pages
Thomas Demeester, Dong Nguyen, Dolf Trieschnigg,
Chris Develder and Djoerd Hiemstra

Cognitive Temporal Document Priors
Maria-Hendrike Peetz and Maarten de Rijke

Social Book Search: The Impact of Professional and
User-Generated Content on Book Suggestions
Marijn Koolen, Jaap Kamps and Gabriella Kazai

16:00 - 16:30 Break

16:30 - 18:30 Session 2: Compressed Papers II
Chair: Claudia Hauff

Exploiting Social Networks in Recommendation: a
Multi-Domain Comparison
Alejandro Bellogin, Iván Cantador, Pablo Castells and
Fernando Díez

Size Estimation of Non-Cooperative Data Collections
Mohammadreza Khelghati, Djoerd Hiemstra and
Maurice Van Keulen

Using Intent Information to Model User Behavior in
Diversified Search
Aleksandr Chuklin, Pavel Serdyukov and Maarten de Rijke

Exploiting the Category Structure of Wikipedia for
Entity Ranking
Rianne Kaptein and Jaap Kamps

Feeding the Second Screen: Semantic Linking based
on Subtitles
Daan Odijk, Edgar Meij and Maarten de Rijke

Summarization and Expansion of Search Facets
Aparna Venkat and Marie-Francine Moens

18:30 - 18:35 Closing Ceremony