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cs.DB updates on arXiv.org

Block-Sphere Vector Quantization GroupAffect-4: A Multimodal Dataset of Four-Person Collaborative Interaction CogScale: Scalable Benchmark for Sequence Processing TextAlign: Preference Alignment for Text Rendering with Hierarchical Rewards LogRouter: Adaptive Two-Level LLM Routing for Log Question Answering in Big Data Systems Agentic Cost-Aware Query Planning with Knowledge Distillation for Big Data Analytics Covariance Structure and Coordinate Heterogeneity Govern Binary Quantization of Contrastive Embeddings IVF-TQ: Calibration-Free Streaming Vector Search via a Codebook-Free Residual Layer Automatic Unsupervised Ensemble Outlier Model Selection--Extended Version A Generative AI Framework for Intelligent Utility Billing CO 2 Analytics and Sustainable Resource Optimisation Towards Foundation Models for Relational Databases with Language Models and Graph Neural Networks Gaussian Relational Graph Transformer Croissant Baker: Metadata Generation for Discoverable, Governable, and Reusable ML Datasets Reducing Hallucination in Vision-Language Models via Stage-wise Preference Optimization under Distribution Shift A Horn extension of DL-Lite with NL data complexity 3D Primitives are a Spatial Language for VLMs Enabling AI-Native Mobility in 6G: A Real-World Dataset for Handover, Beam Management, and Timing Advance A CAP-like Trilemma for Large Language Models: Correctness, Non-bias, and Utility under Semantic Underdetermination EpiCastBench: Datasets and Benchmarks for Multivariate Epidemic Forecasting FERMI: Exploiting Relations for Membership Inference Against Tabular Diffusion Models Toward Multi-Database Query Reasoning for Text2Cypher Autonomous FAIR Digital Objects: From Passive Assertions to Active Knowledge HOME-KGQA: A Benchmark Dataset for Multimodal Knowledge Graph Question Answering on Household Daily Activities Detect, Localize, and Explain: Interactive Hierarchical Log Anomaly Analytics with LLM Augmentation Open Ontologies: Tool-Augmented Ontology Engineering with Stable Matching Alignment Machine Learning-Based Pre-Test Risk Stratification for PCR-Confirmed Chlamydia Using Patient-Reported Data and Urine Biomarkers Reconciling Consistency-Based Diagnosis with Actual-Causality-Based Explanations PrepBench: How Far Are We from Natural-Language-Driven Data Preparation? Anatomy of a Query: W5H Dimensions and FAR Patterns for Text-to-SQL Evaluation Building informative materials datasets beyond targeted objectives
Frequent Query Matching in Dynamic Data Warehousing
Charles H. Goonetilleke, J. Wenny Rahayu, Md. Saiful Islam · 2017-03-06 · via cs.DB updates on arXiv.org

With the need for flexible and on-demand decision support, Dynamic Data Warehouses (DDW) provide benefits over traditional data warehouses due to their dynamic characteristics in structuring and access mechanism. A DDW is a data framework that accommodates data source changes easily to allow seamless querying to users. Materialized Views (MV) are proven to be an effective methodology to enhance the process of retrieving data from a DDW as results are pre-computed and stored in it. However, due to the static nature of materialized views, the level of dynamicity that can be provided at the MV access layer is restricted. As a result, the collection of materialized views is not compatible with ever-changing reporting requirements. It is important that the MV collection is consistent with current and upcoming queries. The solution to the above problem must consider the following aspects: (a) MV must be matched against an OLAP query in order to recognize whether the MV can answer the query, (b) enable scalability in the MV collection, an intuitive mechanism to prune it and retrieve closely matching MVs must be incorporated, (c) MV collection must be able to evolve in correspondence to the regularly changing user query patterns. Therefore, the primary objective of this paper is to explore these aspects and provide a well-rounded solution for the MV access layer to remove the mismatch between the MV collection and reporting requirements. Our contribution to solve the problem includes a Query Matching Technique, a Domain Matching Technique and Maintenance of the MV collection. We developed an experimental platform using real data-sets to evaluate the effectiveness in terms of performance and precision of the proposed techniques.