Ladjel Bellatreche - Advances in Databases and Information Systems: 25th European Conference, ADBIS 2021, Tartu, Estonia, August 24–26, 2021, Proceedings

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This volume contains a selection of the papers presented at the 25th European Conference on Advances in Databases and Information Systems (ADBIS 2021), held during August 2426, 2021, at Tartu, Estonia.

The ADBIS series of conferences aims at providing a forum for the presentation and dissemination of research on database and information systems, the development of advanced data storage and processing technologies, and designing data-enabled systems/software/applications. ADBIS 2021 in Tartu continues after St. Petersburg (1997), Pozna (1998), Maribor (1999), Prague (2000), Vilnius (2001), Bratislava (2002), Dresden (2003), Budapest (2004), Tallinn (2005), Thessaloniki (2006), Varna (20007), Pori (2008), Riga (2009), Novi Sad (2010), Vienna (2011), Pozna (2012), Genoa (2013), Ohrid (2014), Poitiers (2015), Prague (2016), Nicosia (2017), Budapest (2018), Bled (2019), and Lyon (2020). This edition has been totally managed during the COVID-19 pandemic.

The program of ADBIS 2021 includes keynotes, research papers, thematic workshops, and a doctoral consortium. The conference attracted 70 paper submissions from 261 authors in 39 countries from all continents. After rigorous reviewing by the Program Committee (73 reviewers from 28 countries), the 18 papers included in this LNCS proceedings volume were accepted as full contributions, making an acceptance rate of 26%.

Furthermore, the Program Committee selected 8 more papers as short contributions and 21 papers from the five workshops and doctoral consortium which are published in a companion volume entitled New Trends in Databases and Information Systems in Springers Communications in Computer and Information Science (CCIS) series. All papers were evaluated by at least three reviewers and some by four reviewers. The selected papers span a wide spectrum of topics in databases and related technologies, tackling challenging problems and presenting inventive and efficient solutions. In this volume, these papers are organized in seven sections: (1) High-dimensional Data and Data Streams, (2) Social Media and Text Mining, (3) Advanced Query Processing, (4) Patterns and Events, (5) Data Integration, (6) Complex Data, and (7) Database Internals and Processes.

For this edition of ADBIS 2021, we had three keynote talks by experts from three continents: America, Asia, and Europe. The first keynote was given by Divesh Srivastava, Head of Database Research at AT&T, on Towards High-Quality Big Data: Lessons from FIT. The second one by Sanjay Chawla, Research Director of the Qatar Computing Research Institute (QCRI) Data Analytics department, on A perspective on prescriptive and reinforcement learning. The third keynote by Dirk Draheim, Head of the Information Systems Group at Tallinn University of Technology, Estonia, addressed Data exchange for Digital Government: Where are we heading?.