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                                  Preface


    This volume contains the papers presented at the 12th Italian Information
Retrieval Workshop (IIR2022) held on June 29 and June 30, 2022 in Milan,
Italy. The purpose of the Italian Information Retrieval (IIR) workshop series
is to provide a forum for stimulating and disseminating research in informa-
tion retrieval, where Italian researchers and researchers affiliated with Italian
institutions can network and discuss their research results in an informal way.
Previously IIR workshops took place in Bari (2021), Padua (2019) Rome (2018),
Lugano (2017), Venice (2016), Cagliari (2015), Rome (2014), Pisa (2013), Bari
(2012), Milan (2011) and Padua (2010).
    The contributions to IIR2022 mainly address the following relevant topics:
 – Machine Learning for retrieval and recommendation
 – User interfaces and conversational user interaction
 – Evaluation of retrieval and recommendation systems
 – Replication and reproducibility of algoritms and results
 – Novel application domains and datasets
    We received submissions of original papers presenting new research results as
well as extended abstracts containing descriptions of ongoing projects or sum-
marizing already published results. Each submission was reviewed by at least
two program committee members. The reviewers looked at originality, technical
depth, style of presentation, and impact. Finally, the committee decided to ac-
cept 23 papers for presentation at the workshop. The program also included two
invited talks. The first was given by Nicola Tonellotto from University of Pisa,
Italy, on “Pseudo-Relevance Feedback in the Era of Dense Retrieval”. The second
talk was by Marko Tkalcic from University of Primorska, Slovenia. The talk was
entitled “From Implicit Data to Cognitive Models for Recommender Systems”.

Workshop Organisers:
Gabriella Pasi (General co-Chair), Università di Milano-Bicocca, Italy
Paolo Cremonesi (General co-Chair), Politecnico di Milano, Italy
Salvatore Orlando (Program co-Chair), Università Ca’ Foscari Venezia, Italy
Markus Zanker (Program co-Chair), Libera Università di Bolzano, Italy, and
University Klagenfurt, Austria
David Massimo (Proceedings co-Chair), Libera Università di Bolzano, Italy
Gloria Turati (Proceedings co-Chair), Politecnico di Milano, Italy
General Chairs
Gabriella Pasi, University of Milano Bicocca
Paolo Cremonesi, Politecnico di Milano



Program Chairs
Salvatore Orlando, Università Ca’ Foscari Venezia
Markus Zanker, Free University of Bozen-Bolzano and University of Klagenfurt



Proceedings Chairs
David Massimo, Free University of Bolzano
Gloria Turati, Politecnico di Milano



Local Organization Committee
Maurizio Ferrari Dacrema, Politecnico di Milano
Alessandro Raganato, Università degli Studi di Milano-Bicocca
Federico Schiepatti, Politecnico di Milano
Marco Viviani, Università degli Studi di Milano-Bicocca



Steering Committee
Aris Anagnostopoulos, Sapienza University of Rome
Luca Becchetti, Sapienza University of Rome
Fabio Crestani, Università della Svizzera Italiana
Emanuele Di Buccio, Università degli Studi di Udine
Massimo Melucci, University of Padova
Stefano Mizzaro, University of Padova
Tommaso di Noia, Politecnico di Bari
Gabriella Pasi, University of Milano Bicocca
Raffaele Perego, ISTI-CNR
Fabrizio Silvestri, University of Rome
Marko Tkalcic, University of Primorska
Nicola Tonellotto, University of Pisa
Franco Maria Nardini, ISTI-CNR
Giorgio Maria Di Nunzio, University of Padua
Salvatore Orlando, Università Ca’ Foscari Venezia
Program Committee

Salvatore Orlando, Università Ca’ Foscari Venezia
Markus Zanker, Free University of Bozen-Bolzano and University of Klagenfurt
David Massimo, Free University of Bolzano
Aris Anagnostopoulos, Sapienza University of Rome
Emanuele Cavenaghi, Free University of Bozen-Bolzano
Maurizio Ferrari Dacrema, Politecnico di Milano
Massimo Melucci, University of Padova
Ludovik Coba, Free University of Bozen-Bolzano
Paolo Cremonesi, Politecnico di Milano
Nicola Tonellotto, University of Pisa
Gabriele Sottocornola, Libera Università di Bozen-Bolzano
Franco Maria Nardini, ISTI-CNR
Salvatore Trani, ISTI-CNR
Guido Zuccon, The University of Queensland
Maurizio Atzori, University of Cagliari
Diego Marcheggiani, Amazon
Ludovico Boratto, University of Cagliari
Massimo Quadrana, Pandora
Umberto Panniello, Politecnico di Bari
Maristella Agosti, University of Padua
Raffaele Perego, ISTI-CNR
Gianmaria Silvello, University of Padua
Fedelucio Narducci, Politecnico di Bari
Fabrizio Silvestri, University of Rome
Giovanni Semeraro, University of Bari
Luca Becchetti, Sapienza University of Rome
Pierpaolo Basile, University of Bari
Panagiotis Symeonidis, Free University of Bolzano
Danilo Croce, University of Roma Tor Vergata
Gabriella Pasi, University of Milano Bicocca
Paolo Boldi, University of Milan
Rossano Venturini, Università di Pisa
Marco de Gemmis, University of Bari Aldo Moro
Andrea Esuli, Istituto di Scienza e Tecnologie dell’Informazione
Fabio Stella, Universita’ degli Studi di Milano-Bicocca
Alexander Felfernig, TU Graz
Dietmar Jannach, University of Klagenfurt
Francesco Ricci, Free University of Bozen-Bolzano
Liliana Ardissono, University of Torino
Nicola Ferro, University of Padova

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