Improving the Performance of Pipelined Query Processing with Skipping -- Learning to Find Comparable Entities on the Web -- Sentiment Analysis by Augmenting Expectation Maximisation with Lexical Knowledge -- Event-Driven Ontology Updating -- BiCWS: Mining Cognitive Differences from Bilingual Web Search Results -- Towards a User-Centric Social Approach to Web Services Composition, Execution, and Monitoring.

This book constitutes the proceedings of the 13th International Conference on Web Information Systems Engineering, WISE 2012, held in Paphos, Cyprus, in November 2012. The 44 full papers, 13 short papers, 9 demonstrations papers and 9 “challenge” papers were carefully reviewed and selected from 194 submissions. The papers cover various topics in the field of Web Information Systems Engineering.