TY - GEN
T1 - Proactive caching for spatial queries in mobile environments
AU - Hu, Haibo
AU - Xu, Jianliang
AU - Wong, Wing Sing
AU - Zheng, Baihua
AU - Lee, Dik Lun
AU - Lee, Wang Chien
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=28444498809&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=28444498809&partnerID=8YFLogxK
U2 - 10.1109/ICDE.2005.113
DO - 10.1109/ICDE.2005.113
M3 - Conference contribution
AN - SCOPUS:28444498809
SN - 0769522858
T3 - Proceedings - International Conference on Data Engineering
SP - 403
EP - 414
BT - Proceedings - 21st International Conference on Data Engineering, ICDE 2005
T2 - 21st International Conference on Data Engineering, ICDE 2005
Y2 - 5 April 2005 through 8 April 2005
ER -