SEBD 2017                                                                                  preface


Preface
This volume collects the papers selected for presentation at the twenty-fifth Italian Symposium
on Advanced Database Systems (SEBD 2017), held at Squillace Lido (Catanzaro), Italy, at Sun
Beach Clubesse from the 25th to the 29th of June 2017.
    The first edition of SEBD was held in 1993 and was very successful. Hence, the organizers
were encouraged to repeat the experience year after year, until the symposium has became THE
annual event of the Italian database research community. Database research played a crucial
role for the growth of the computer science field since its early stage. When the first edition of
SEBD was organized, the demands placed on the classical relational database systems already
required new solutions to answer challenges posed by emerging applications. Twenty-five years
later, we can say that, thanks to the solutions found so far, databases became a fundamental
component of almost every computer science system, but new challenges continuously arise that
actually lead to the Big-Data paradigm that is nowadays of great interest for both the research
community and the industry.
    However, even in this new paradigm, database related research issues play a fundamental
role. Indeed Data mining and knowledge Discovery, Information Extraction, Semistructured
Data Management and Intelligent Web Information Systems to cite a few, can be considered
today as mature research fields whose results are fundamental in order to realize the Big Data
metaphor. All these research field are addressed by the papers published in this volume. Fifty-
seven contributions were originally submitted, of which forty-three have been accepted. Each
submission was evaluated by three independent referees. Most of the contributions came from
universities and the CNR (Italian National Research Council).
    We hope that SEBD will continue to be a gathering forum where people from academic and
industrial environments meet, discuss and exchange experiences on the theory and practice of
information storage and management. Besides paper and demo presentations, the program also
featured four invited talks by Serge Abiteboul, Ronald Fagin, Floris Geerts and Carlo Zaniolo,
and two tutorials given by Sihem Amer-Yahia and Pierangela Samarati.
    We would like to thank all the authors who submitted papers and all the conference partici-
pants. We are also grateful to the members of the Program Committee and the external referees
for their thorough work in reviewing submitted contributions with expertise and patience, and
the members of the SEBD Steering Committee.
    A special thank is due to all the members of the Organizing Committee which made this
event possible. We gratefully acknowledge the many sponsoring companies and institutions and
the patronage of DIMES - Università della Calabria and ICAR-CNR.


June 25, 2017                                                                      Sergio Flesca
Squillace Lido (CZ), Italy                                                         Sergio Greco
                                                                                   Elio Masciari
                                                                                 Domenico Saccà




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