Part: Data, Information, and Knowledge Management for E-Business -- Implementing the WiPo Architecture -- Effective Web Crawling for Chinese Addresses and Associated Information -- Information Need in Cloud Service Procurement - An Exploratory Case Study (Short Paper) -- Part: Semantic Web and Linked Open Data for E-Business -- Exploiting Freebase to Obtain GoodRelations-Based Product Ontologies -- Modelling and Linking Transformations in EPCIS Governing Supply Chain Business Processes -- Validator and Preview for the JobPosting Data Model of Schema.org (Short Paper) -- Automotive Ranges as eCommerce Data (Short Paper) -- Linked Data-Based Conceptual Modelling for Recommendation: A FCA-Based Approach (Short Paper) -- Part: Search, Matchmaking, Recommender and Comparison Systems -- A Linked Data Recommender System Using a Neighborhood-Based Graph Kernel -- Resource Recommendation in Social Annotation Systems Based on User Partitioning -- Resource Recommendation in Social Annotation Systems Based on User Partitioning -- Active Learning in Collaborative Filtering Recommender Systems -- Personality-Aware Collaborative Filtering: An Empirical Study in Multiple Domains with Facebook Data -- Modelling User Preferences from Implicit Preference Indicators via Compensational Aggregations (Short Paper) -- Using Dependency Bigrams and Discourse Connectives for Predicting the Helpfulness of Online Reviews (Short Paper) -- Part: Economics, Management, and Law -- Customer Load Strategies for Demand Response in Bilateral Contracting of Electricity -- An Inductive Approach to Reconceptualizing and Theorizing about Digital Services (Short Paper) -- How to Create an E-Advertising Adaptation Strategy: The AEADS Approach (Short Paper) -- Part: Social Interaction in E-Business -- Modelling User Behaviour in Online Q&A Communities for Customer Support.

This book constitutes the refereed proceedings of the 15th International Conference on Electronic Commerce and Web Technologies (EC-Web) held in Munich, Germany, in September 2014. The 11 full and 8 short papers included in this volume were carefully reviewed and selected from 46 submissions. The papers are organized in topical sections on data, information, and knowledge management for e-business; Semantic Web and linked open data for e-business; search, matchmaking, recommender and comparison systems; economics, management, and law; and social interaction in e-business.