| Top-k and Skyline Query Processing | |
| Top-k Best Probability Queries on Probabilistic Data | p. 1 |
| Probabilistic Reverse Skyline Query Processing over Uncertain Data Stream | p. 17 |
| Malleability-Aware Skyline Computation on Linked Open Data | p. 33 |
| Information Retrieval and Recommendation | |
| Effective Next-Items Recommendation via Personalized Sequential Pattern Mining | p. 48 |
| Scalable Top-k Keyword Search in Relational Databases | p. 65 |
| Composition and Efficient Evaluation of Context-Aware Preference Queries | p. 81 |
| Indexing and Search Systems | |
| An Automation-Based Index Scheme for On-Demand XML Data Broadcast | p. 96 |
| Colored Range Searching on Internal Memory | p. 111 |
| Circle of Friend Query in Geo-Social Networks | p. 126 |
| A Power Saving Storage Method That Considers Individual Disk Rotation | p. 138 |
| Cloud Computing and Scalability | |
| ComMapReduce: An Improvement of MapReduce with Lightweight Communication Mechanisms | p. 150 |
| Halt or Continue: Estimating Progress of Queries in the Cloud | p. 169 |
| Towards a Scalable, Performance-Oriented OLAP Storage Engine | p. 185 |
| Industrial Papers I: Memory-Based Query Processing | |
| Highly Scalable Speech Processing on Data Stream Management System | p. 203 |
| EVIS: A Fast and Scalable Episode Matching Engine for Massively Parallel Data Streams | p. 213 |
| Real-Time Analysis of ECG Data Using Mobile Data Stream Management System | p. 224 |
| A Main Memory Based Spatial DBMS: Kairos | p. 234 |
| Industrial Papers II: Semantic and Decision Support Systems | |
| Study on the International Standardization for the Semantic Metadata Mapping Procedure | p. 243 |
| Semantics and Usage Statistics for Multi-dimensional Query Expansion | p. 250 |
| Hierarchy-Based Update Propagation in Decision Support Systems | p. 261 |
| An Experiment with Asymmetric Algorithm: CPU Vs. GPU | p. 272 |
| Demo Papers I: Social Data | |
| Tag Association Based Graphical Password Using Image Feature Matching | p. 282 |
| ACARP: Author: Centric Analysis of Research Papers | p. 287 |
| iParticipate: Automatic Tweet Generation from Local Government Data | p. 295 |
| gRecs: A Group Recommendation System Based on User Clustering | p. 299 |
| Demo Papers II: Data Mining | |
| PEACOD: A Platform for Evaluation and Comparison of Database Partitioning Schemes | p. 304 |
| Stream Data Mining Using the MOA Framework | p. 309 |
| Shot Classification Using Domain Specific Features for Movie Management | p. 314 |
| PA-Miner: Process Analysis Using Retrieval, Modeling, and Prediction | p. 319 |
| Panel | |
| Data Management Challenges and Opportunities in Cloud Computing (Abstract) | p. 323 |
| Tutorials | |
| Detecting Clones, Copying and Reuse on the Web (DASFAA 2012 Tutorial) | p. 324 |
| Query Processing over Uncertain and Probabilistic Databases | p. 326 |
| Tutorial: Data Stream Mining and Its Applications (Abstract) | p. 328 |
| Storing, Querying, Summarizing, and Comparing Molecular Networks: The State-of-the-Art | p. 330 |
| Author Index | p. 333 |
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