Maintaining views incrementally
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
Materialized view maintenance and integrity constraint checking: trading space for time
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
A complete anytime algorithm for number partitioning
Artificial Intelligence
Middle-tier database caching for e-business
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Computers and Intractability: A Guide to the Theory of NP-Completeness
Computers and Intractability: A Guide to the Theory of NP-Completeness
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
The Differencing Method of Set Partitioning
The Differencing Method of Set Partitioning
MTCache: Transparent Mid-Tier Database Caching in SQL Server
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
Performance improvement of OpenJPA by query dependency analysis
DASFAA'10 Proceedings of the 15th international conference on Database Systems for Advanced Applications - Volume Part II
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OpenJPA is an implementation of the Java Persistence API (JPA) for Apache, with a caching layer for database queries. However the caching performance is poor when an application includes write transactions, because the OpenJPA cache-invalidation mechanism is coarse-grained and this results in a low cache hit rate. In this research, we implemented an index mechanism for cache invalidation optimized for the data access patterns. The sizes of the index can be adjusted for the available cache memory. The results of our benchmark indicated that the optimized index drastically improved the performance of OpenJPA even with a small index size in various data access pattern scenarios.