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Chapter and Conference Paper
HOT: Hypergraph-Based Outlier Test for Categorical Data
As a widely used data mining technique, outlier detection is a process which aims at finding anomalies with good explanations. Most existing methods are designed for numeric data. They will have problems with ...
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Chapter and Conference Paper
Performance Evaluation of a DOM-Based XML Database: Storage, Indexing, and Query Optimization
DOM is an XML access interface proposed by W3C. XML documents can be stored and accessed through it and XML queries can be evaluated based on DOM. In this paper, a persistent DOM storage method is designed wit...
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Chapter and Conference Paper
Revisit on View Maintenance in Data Warehouses
The complete consistence maintenance of SPJ-type materialized views in a distributed source environment has been studied extensively in the past several years due to its fundamental importance to data warehous...
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Article
Optimizing multiple dimensional queries simultaneously in multidimensional databases
Some significant progress related to multidimensional data analysis has been achieved in the past few years, including the design of fast algorithms for computing datacubes, selecting some precomputed group-b...
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Chapter and Conference Paper
Maintaining Materialized Views for Data Warehouses with Multiple Remote Sources
A data warehouse is a data repository which collects and maintains a large amount of data from multiple distributed, autonomous and possibly heterogeneous data sources. Often the data is stored in the form of ...
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Chapter and Conference Paper
A performance study of declustering strategies for parallel spatial databases
Effective exploitation of shared-nothing multiprocessors to improve the performance of spatial database applications requires novel query processing techniques. This is because, unlike traditional data, spatia...
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Chapter and Conference Paper
Spatial join strategies in distributed spatial DBMS
In a distributed spatial database system, a user may issue a query that relates two spatial relations that are stored at different sites. Because of the sheer volume and complexity of spatial data, spatial joi...
