This volume collects the papers presented at ICDT 2003, the 9th International ConferenceonDatabaseTheory, heldfrom8to10January2003intheRettorato dell'Universit a di Siena, Siena, Italy. ICDT (http: //alpha.luc.ac.be/ lucp1080/icdt/) has now a long t- dition of international conferences, providing a biennial scienti?c forum for the communicationofhigh-qualityresearchresultsontheoreticalaspectsofallforms of database systems and database technology. ICDT is traditionally held in - storic European locations: Rome in 1986, Bruges in 1988, Paris in 1990, Berlin in 1992, Prague in 1995, Delphi in...

This volume contains the proceedings of the Second InternationalConferenceon Web Reasoning and Rule Systems (RR2008), which was held on October 31 and November 1 in Karlsruhe, Germany. The International Conference on Web Reasoning and Rule Systems (RR) is the major forum for discussion and dissemination of new results on all topics concerning web reasoning and rule systems. RR2008 built on the success of the First International Conference on Web Reasoning and Rule Systems RR2007, which received enthusiastic support from the Web Rules community. In 2008, as documented by this proceedings...

This book constitutes the thoroughly refereed proceedings of the 11th Italian Research Conference on Digital Libraries, IRCDL 2015, held in Bozen-Bolzano, Italy, in January 2015.

The 13 full papers, 4 short papers and 2 invited poster papers presented were carefully selected from 19 submissions. They are organized under the following five categories: semantic modeling; projects; models and applications; content analysis; and digital libraries infrastructures. The papers deal with numerous multidisciplinary aspects ranging from computer science to humanities in the broader sense,...

This volume contains some lecture notes of the 12th Reasoning Web Summer School (RW 2016), held in Aberdeen, UK, in September 2016.

In 2016, the theme of the school was "Logical Foundation of Knowledge Graph Construction and Query Answering." The notion of knowledge graph has become popular since Google started to use it to improve its search engine in 2012. Inspired by the success of Google, knowledge graphs are gaining momentum in the World Wide Web arena. Recent years have witnessed increasing industrial take-ups by other Internet giants, including Facebook's Open Graph and...