This book constitutes the workshop proceedings of the 18th International Conference on Database Systems for Advanced Applications, DASFAA 2013, held in Wuhan, China, in April 2013.

The volume contains three workshops, each focusing on specific area that contributes to the main themes of the DASFAA conference: The First International Workshop on Big Data Management and Analytics (BDMA 2013), the Third International Workshop on Social Networks and Social Web (SNSM 2013) and the International Workshop on Semantic Computing and Personalization (SeCoP 2013).

The First International Workshop on Big Data.- Management and Analytics (BDMA).- From Big Data to Big Data Mining: Challenges, Issues, and Opportunities.- An Economical Query Cost Model in the Cloud.- BC-BSP: A BSP-Based Parallel Iterative Processing System for Big Data on Cloud Architecture.- DNA Encoding for Splice Site Prediction in Large DNA Sequence.- Using a Pipeline Approach to Build Data Cube for Large XML Data Streams.- A Study on MapReduce Processing for Multi-dimensional Continuous Query.- Measuring Proximity in a Graph of Zip Code Spatial Data.- An Efficient Data Access Method Exploiting Quadtrees on MapReduce Frameworks.- Optimized Adaptive Hybrid Indexing for In-memory Column Stores.- Fourth International Workshop on Social Networks and Social Web Mining (SNSM).- Influence Maximization Algorithm Using Markov Clustering.- An Approximate Approach for Batch Update of Common Preference Group.- A Probabilistic Approach for Events Identification from Social Media RSS Feeds.- A Method of Pre-detecting Privacy Leak in Social Network Service Using Collaborative Filtering.- The Strategies for Supporting Query Specialization and Query Generalization in Social Tagging Systems.- Extracting Relations among Search Properties Based on the Operational Context of Geographical Information Retrieval Systems.- The Media Feature Analysis of Microblog Topics.- First International Workshop on Semantic.- Computing and Personalization (SeCoP).- Web Service Based Algorithm Management Framework for Stream Data Processing.- Research on Petri Net and IDEF1X Based Production Scheduling Modeling Method.- Product Feature Summarization by Incorporating Domain Information.