Part 1: Extraction and integrationWeb data reconciliation : models and experiences / Lorenzo Blanco, Valter Crescenzi, Paolo Merialdo [and others] -- A domain independent framework for extracting linked semantic data from tables / Varish Mulwad, Tim Finin, Anupam Joshi -- Knowledge extraction from structured sources / Jörg Unbehauen, Sebastian Hellman, Sören Auer [and others] -- Extracting information from Google fusion tables / Marco Brambilla, Stefano Ceri, Nicola Cinefra [and others] -- Materialization of web data sources / Alessandro Bozzon, Stefano Ceri, Srd̄an Zagorac -- Part 2: Query and visualization paradigms -- Natural language to data services / Vincenzo Guerrisi, Pietro La Torre, Silvia Quarteroni -- Mobile multi-domain search over structured web data / Atakan Aral, Ilker Zafer Akin, Marco Brambilla -- Clustering and labeling of multi-dimensional mixed structured data / Marco Brambilla, Massimiliano Zanoni -- Visualizing search results : engineering visual patterns development for the web / Rober Morales-Chaparro, Juan Carlos Preciado, Fernando Sánchez-Figueroa -- Part 3: Exploring linked data -- Extending SPARQL algebra to support efficient evaluation of top-K SPARQL queries / Alessandro Bozzon, Emanuele Della Valle, Sara Magliacane -- Thematic clustering and exploration of linked data / Silvana Castano, Alfio Ferrara, Stefano Montanelli -- Support for resuable explorations of linked data in the semantic web / Marcelo Cohen, Daniel Schwabe -- Part 4: Games, social search, and economics -- A survey on proximity measures for social networks / Sara Cohen, Benny Kimelfield, Georgia Koutrika -- Extending search to crowds : a model-driven approach / Alessandro Bozzon, Marco Brambilla, Stefano Ceri [and others] -- BetterRelations : collecting association strngths for linked data triples with a game / Jörn Hees, Thomas Roth-Beghofer, Ralf Biedert [and others] -- An incentive-compatible revenue-sharing mechanism for the economic sustainability of multi-domain search based on advertising / Marco Brambilla, Sofia Ceppi, Nicola Gatti [and others].