论文信息 - Progressive Querying in Mobile GIS Based on XML and XQuery

Progressive Querying in Mobile GIS Based on XML and XQuery

With the development of software, hardware and network technology, the urge for geo-location based information and service, mobile GIS (geographic information system) has prevailed in today¿s life. However, limitations from the nature characters of mobile terminals, deficiency in wireless network and large volume of GIS data block an operable and quick response for a mobile GIS query. In this paper, a progressive querying method for mobile GIS query based on XQuery together with corresponding data structure is presented to increase the response. Our experiment results reveal the effective performance tradeoffs in usual situation.

Yanxiang He | WenSheng Hu

[1] Michela Bertolotto,et al. Progressive vector transmission , 1999, GIS '99.

[2] Michela Bertolotto,et al. Progressive Transmission of Vector Map Data over the World Wide Web , 2001, GeoInformatica.

[3] Yanxiang He,et al. The multi-agents mechanism applied in mobile GIS , 2005, Proceedings. 2005 International Conference on Wireless Communications, Networking and Mobile Computing, 2005..

[4] Barbara P. Buttenfield,et al. Transmitting Vector Geospatial Data across the Internet , 2002, GIScience.

[5] Hong Va Leong,et al. Efficient management of XML contents over wireless environment by Xstream , 2004, SAC '04.

[6] A. Saalfeld. Topologically Consistent Line Simplification with the Douglas-Peucker Algorithm , 1999 .

[7] Michela Bertolotto,et al. A Data Structure for Efficient Transmission of Generalised Vector Maps , 2004, International Conference on Computational Science.