SIGIR is the major international forum for the presentation of new research results and for the demonstration of new systems and techniques in the broad field of information retrieval (IR). The Conference and Program Chairs invite all those working in areas related to IR to submit original papers, posters, and proposals for tutorials, workshops, and demonstrations of systems. SIGIR 2011 welcomes contributions related to any aspect of IR theory and foundation, techniques, and applications. Relevant topics include, but are not limited to:

* Document Representation and Content Analysis (e.g., text representation, document structure, linguistic analysis, non-English IR, cross-lingual IR, information extraction, sentiment analysis, clustering, classification, topic models, facets)
* Queries and Query Analysis (e.g., query representation, query intent, query log analysis, question answering, query suggestion, query reformulation)
* Users and Interactive IR (e.g., user models, user studies, user feedback, search interface, summarization, task models, personalized search)
* Retrieval Models and Ranking (e.g., IR theory, language models, probabilistic retrieval models, feature-based models, learning to rank, combining searches, diversity)
* Search Engine Architectures and Scalability ( e.g., indexing, compression, MapReduce, distributed IR, P2P IR, mobile devices)
* Filtering and Recommending (e.g., content-based filtering, collaborative filtering, recommender systems, profiles)
* Evaluation (e.g., test collections, effectiveness measures, experimental design)
* Web IR and Social Media Search (e.g., link analysis, query logs, social tagging, social network analysis, advertising and search, blog search, forum search, CQA, adversarial IR, vertical and local search)
* IR and Structured Data (e.g., XML search, ranking in databases, desktop search, entity search)
* Multimedia IR (e.g., Image search, video search, speech/audio search, music IR)
* Other Applications (e.g., digital libraries, enterprise search, genomics IR, legal IR, patent search, text reuse)

To maintain a reasonable acceptance rate in the face of growing numbers of submissions, SIGIR 2011 will be exploring alternative presentations for full papers. For example, depending on the number of accepted full papers, the program committee may select some of those papers to be presented as posters in a special track according to the nature of the paper. This would be different than the poster session for the “late-breaking” research ideas, which will continue as in previous years.

IMPORTANT DATES:

* 17 Jan 2011 : Abstracts for full research papers due
* 24 Jan 2011 : Full research paper submissions due
* 28 Jan 2011 : Workshop proposals due
* 11 Feb 2011 : Posters, demonstration, and tutorial proposals due
* 5 Mar 2011 : Notification of workshop acceptances
* 7 Mar 2011 : Doctoral consortium proposals due
* 8 Apr 2011 : All other acceptance notifications
* 24-28 Jul 2011 : Conference in Beijing

Organization Committee

General Co-Chairs :
■ Jian-Yun Nie, University of Montreal
■ Wei-Ying Ma, Microsoft Research Asia

Technical Program Co-Chairs :
■ W. Bruce Croft, University of Massachusetts, Amherst
■ Ricardo Baeza-Yates, Yahoo! Research
■ Tat-Seng Chua, National University of Singapore