Abstract
Semantic caching enables mobile clients to answer spatial queries locally by storing the query descriptions together with the results. However, it supports only a limited number of query types, and sharing results among these types is difficult. To address these issues, we propose a proactive caching model which caches the result objects as well as the index that supports these objects as the results. The cached index enables the objects to be reused for all common types of queries. We also propose an adaptive scheme to cache such an index, which further optimizes the query response time for the best user experience. Simulation results show that proactive caching achieves a significant performance gain over page caching and semantic caching in mobile environments where wireless bandwidth and battery are precious resources.
Original language | English |
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Title of host publication | Proceedings - 21st International Conference on Data Engineering, ICDE 2005 |
Pages | 403-414 |
Number of pages | 12 |
DOIs | |
Publication status | Published - 12 Dec 2005 |
Externally published | Yes |
Event | 21st International Conference on Data Engineering, ICDE 2005 - Tokyo, Japan Duration: 5 Apr 2005 → 8 Apr 2005 |
Conference
Conference | 21st International Conference on Data Engineering, ICDE 2005 |
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Country/Territory | Japan |
City | Tokyo |
Period | 5/04/05 → 8/04/05 |
ASJC Scopus subject areas
- Software
- Signal Processing
- Information Systems