This book constitutes the proceedings of the 10th International Conference on Web Information Systems Engineering, WISE 2009, held in Poznan, Poland, in October 2009. The 33 revised full papers and 17 revised short papers presented together with two keynote talks were carefully reviewed and selected from around 144 submissions. The papers are organized in topical sections on web computing, industrial session, tagging, semantics, search, visualization, web services, trust and uncertainty, recommendation and quality of service, user interfaces, web understanding, exploiting structures information on the web, systems, data mining and querying, querying and workflow and architecture.

This book constitutes the revised selected papers of the combined workshops on Web Information Systems Engineering, WISE 2011 and WISE 2012, held in Sydney, Australia, in October 2011 and in Paphos, Cyprus, in November 2012. The seven workshops of WISE 2011-2012 have reported the recent developments and advances in the contemporary topics in the related fields of: Advanced Reasoning Technology for e-Science (ART 2012), Cloud-Enabled Business Process Management (CeBPM 2012), Engineering in the Semantic Enterprise (ESE 2012), Social Web Analysis for Trend Detection (SoWeTrend 2012), Big Data and Cloud (BDC 2012), Personalization in Cloud and Service Computing (PC-S 2011), and User-Focused Service Engineering, Consumption and Aggregation (USECA 2011).

Online trolling and other deviant behaviors have always affected online communities. As online trolling becomes widely spread, myriad questions are raised, including: Who is a troll and why do trolls troll? What are the enabling factors of online trolling? How do members and administrators of online communities detect, interpret, and react to trolling? How can online trolling be handled effectively? What is the impact of the socio-cultural and technological environments on online trolling? What motivates trolling? The book answers these questions and includes the following focuses: Hard-core trolls and light trolls Gender, trolling, and anti-social behavior online Perception of trolling Collaborative trolling Ideological trolls Trolling around the globe

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.

This book contains the carefully selected and reviewed papers presented at three satellite events that were held in conjunction with the 11th International Conference on Web Information Systems Engineering, WISE 2010, in Hong Kong, China, in December 2010. The collection comprises a total of 40 contributions that originate from the First International Symposium on Web Intelligent Systems and Services (WISS 2010), from the First International Workshop on Cloud Information Systems Engineering (CISE 2010) and from the Second International Workshop on Mobile Business Collaboration (MBC 2010). The papers address a wide range of hot topics and are organized in topical sections on: decision and e-markets; rules and XML; web service intelligence; semantics and services; analyzing web resources; engineering web systems; intelligent web applications; web communities and personalization; cloud information system engineering; mobile business collaboration.