IIR 2012 - Italian Information Retrieval Workshop, Proceedings of the 3rd Italian Information Retrieval Workshop Bari, Italy, January 26-27, 2012

The purpose of the Italian Information Retrieval (IIR) workshop series is to provide an international meeting forum for stimulating and disseminating research in Information Retrieval and related disciplines, where researchers, especially early stage Italian researchers, can exchange ideas and present results in an informal way. IIR 2012 took place in Bari, Italy, at the Department of Computer Science, University of Bari Aldo Moro, on January 26‐27, 2012, following the first two successful editions in Padua (2010) and Milan (2011).   We received 37 submissions, including full and short original papers with new research results, as well as short papers describing ongoing projects or presenting already published results. Most contributors to IIR 2012 were PhD students and early stage researchers. Each submission was reviewed by at least two members of the Program Committee, and 24 papers were selected on the basis of originality, technical depth, style of presentation, and impact.   The 24 papers published in these proceedings cover six main topics:  ranking, text classification, evaluation and geographic information retrieval, filtering, content analysis, and information retrieval applications. Twenty papers are written in English and four in Italian. We also include an abstract of the invited talk given by Roberto Navigli (Department of Computer Science, University of Rome “La Sapienza”), who presented a novel approach to Web search result clustering based on the automated discovery of word senses from raw text.