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https://ceur-ws.org/Vol-964/preface.pdf
Roberto Basili, Fabrizio Sebastiani, Giovanni Semeraro (Eds.)
Proceedings of the
Fourth Italian Information Retrieval Workshop
IIR 2013
National Council of Research campus, Pisa, Italy
16 – 17 January 2013
http://iir2013.isti.cnr.it/
This volume is published and copyrighted by:
Roberto Basili
Fabrizio Sebastiani
Giovanni Semeraro
ISSN 1613‐0073
Copyright © 2013 for the individual papers by the papers' authors. Copying permitted only for
private and academic purposes. Re‐publication of material from this volume requires permission
by the copyright owners.
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
THEORY
Are There New BM25 Expectations?
Emanuele Di Buccio, Giorgio Maria Di Nunzio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
The Bivariate 2-Poisson Model for IR
13
Giambattista Amati, Giorgio Gambosi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
QUERY LANGUAGES & OPERATIONS
A Query Expansion Method based on a Weighted Word Pairs Approach
Luca Greco, Massimo De Santo, Paolo Napoletano, Francesco Colace . . . . . . . . . . . . . . . . 17
A Flexible Extension of XQuery Full-Text
29
Emanuele Panzeri, Gabriella Pasi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Towards a Qualitative Analysis of Diff Algorithms
33
Gioele Barabucci, Paolo Ciancarini, Angelo Di Iorio, Fabio Vitali . . . . . . . . . . . . . . . . . . . . .
On Suggesting Entities as Web Search Queries
37
Diego Ceccarelli, Sergiu Gordea, Claudio Lucchese, Franco Maria Nardini, Raffaele Perego
IMAGE RETRIEVAL
Visual Features Selection
Giuseppe Amato, Fabrizio Falchi, Claudio Gennaro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Experimenting a Visual Attention Model in the Context of CBIR Systems
45
Franco Alberto Cardillo, Giuseppe Amato, Fabrizio Falchi . . . . . . . . . . . . . . . . . . . . . . . . . .
EVALUATION
Cumulated Relative Position: A Metric for Ranking Evaluation
Marco Angelini, Nicola Ferro, Kalervo Järvelin, Heikki Keskustalo, Ari Pirkola,
Giuseppe Santucci, Gianmaria Silvello . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Visual Interactive Failure Analysis: Supporting Users in Information Retrieval Evaluation
61
Marco Angelini, Nicola Ferro, Giuseppe Santucci, Gianmaria Silvello . . . . . . . . . . . . . . . . .
SOCIAL MEDIA AND INFORMATION RETRIEVAL
Myusic: a Content-based Music Recommender System based on eVSM and Social Media
Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro, Pasquale Lops,
Marco de Gemmis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
A Preliminary Study on a Recommender System for the Million Songs Dataset Challenge
73
Fabio Aiolli . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distributional Models vs. Linked Data: Exploiting Crowdsourcing to Personalize Music
Playlists
Cataldo Musto, Fedelucio Narducci, Giovanni Semeraro, Pasquale Lops,
84
Marco de Gemmis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEMANTICS, NATURAL LANGUAGE AND APPLICATIONS
Opinion and Factivity Analysis of Italian Political Discourse
Rodolfo Delmonte, Rocco Tripodi, Daniela Gifu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Distributional Semantics for Answer Re-ranking in Question Answering
100
Piero Molino, Pierpaolo Basile, Annalina Caputo, Pasquale Lops, Giovanni Semeraro . . . . .
INSEARCH: A platform for Enterprise Semantic Search
104
Diego De Cao, Valerio Storch, Danilo Croce, Roberto Basili . . . . . . . . . . . . . . . . . . . . . . . . .
Wikipedia-based Unsupervised Query Classification
116
Milen Kouylekov, Luca Dini, Alessio Bosca, Marco Trevisan . . . . . . . . . . . . . . . . . . . . . . . . .
Preface
The purpose of the Italian Information Retrieval (IIR) workshop series is to provide a forum for stimulating
and disseminating research in information retrieval, where Italian researchers (especially young ones) and
researchers affiliated with Italian institutions can network and discuss their research results in an informal
way. IIR 2013 took place in Pisa, Italy, at the National Council of Research campus on January 16-17, 2013,
following the first three successful editions in Padua (2010), Milan (2011) and Bari (2012).
The contributions to IIR 2013 mainly address six relevant topics:
- theory
- query languages and operations
- image retrieval
- evaluation
- social media and information retrieval
- semantics, natural language and applications
Most submitted papers were from PhD students and early stage researchers. All the 24 submissions, both
full and short original papers presenting new research results, as well as extended abstracts containing
descriptions of ongoing projects or presenting already published results , were reviewed by two members of
the Program Committee and 18 contributions were selected for presentation on the basis of originality,
technical depth, style of presentation, and impact. Additionally to the presentations of these 18 submitted
papers, IIR 2013 featured two special events. The first was an invited talk by Renato Soru, CEO of Tiscali
SpA, in which the speaker addressed past, present, and future efforts by Tiscali to enter the Web search
market. In particular, Soru highlighted some new features of “istella”, the soon-to-be-announced Web
search engine by Tiscali, mainly addressed at covering the Italian Web space, with a special emphasis on
making Italy’s cultural heritage digitally available to a wide audience. The second special event was a panel
on EVALITA, an evaluation campaign which has been running biennially since 2007 and whose main goal is
the evaluation of natural language processing tools for Italian. Several EVALITA task organizers have
presented the main results obtained in the recent editions of the campaign and have discussed the
unresolved challenges that still lie ahead of researchers, with the aim of generating awareness about the
state-of-the-art in Italian NLP among IR researchers and of strengthening the relationships between the
two communities.
The present proceedings include the papers that were presented at IIR 2013. We hope they represent an
interesting contribution to IR research in Italy, and to IR research in general.
The Workshop Organisers
Roberto Basili
University of Roma “Tor Vergata” (Program co-Chair)
Fabrizio Sebastiani
ISTI-CNR (General Chair)
Giovanni Semeraro
University of Bari Aldo Moro (Program co-Chair)
v
Organization
General Chair
Fabrizio Sebastiani (ISTI-CNR)
Program Chairs
Roberto Basili (University of Rome “Tor Vergata”)
Giovanni Semeraro (University of Bari Aldo Moro)
IIR Steering Committee
Gianni Amati (Fondazione Ugo Bordoni)
Claudio Carpineto (Fondazione Ugo Bordoni)
Massimo Melucci (University of Padua)
Stefano Mizzaro (University of Udine)
Gabriella Pasi (University of Milano Bicocca)
Giovanni Semeraro (University of Bari Aldo Moro)
Program Committee
Giambattista Amati (Fondazione Ugo Bordoni)
Giuseppe Amodeo (Almawave srl)
Pierpaolo Basile (University of Bari Aldo Moro)
Giacomo Berardi (ISTI-CNR, Pisa)
Gloria Bordogna (IDPA-CNR Dalmine, Bergamo)
Claudio Carpineto (Fondazione Ugo Bordoni)
Fabio Crestani (Università della Svizzera Italiana)
Danilo Croce (University of Roma “Tor Vergata”)
Marco de Gemmis (University of Bari Aldo Moro)
Pasquale De Meo (VU University, Amsterdam)
Giorgio Maria Di Nunzio (University of Padua)
Giorgio Gambosi (University of Roma “Tor Vergata”)
vi
Marco Gori (University of Siena)
Antonio Gulli (Microsoft)
Pasquale Lops (University of Bari Aldo Moro)
Marco Maggini (University of Siena)
Massimo Melucci (University of Padua)
Stefano Mizzaro (University of Udine)
Alessandro Moschitti (University of Trento)
Salvatore Orlando (University of Venezia)
Gabriella Pasi (University of Milano Bicocca)
Raffaele Perego (ISTI-CNR, Pisa)
Francesco Ricci (Free University of Bozen-Bolzano)
Fabrizio Silvestri (ISTI-CNR, Pisa)
Organizing Committee
Adriana Lazzaroni, IIT-CNR (Local Arrangements Chair)
Patrizia Andronico, IIT-CNR
Giacomo Berardi, ISTI-CNR (Webmaster)
Catherine Bosio, ISTI-CNR
Raffaella Casarosa, IIT-CNR
Giulio Galesi, ISTI-CNR
Additional Reviewers
Annalina Caputo (University of Bari Aldo Moro)
Piero Molino (University of Bari Aldo Moro)
Fedelucio Narducci (University of Milano Bicocca)
vii