Map-Based Range Query Processing for Geographic Web Search Systems

In order to utilize geographic web information for digital city applications, we have been developing a geographic web search system, KyotoSEARCH. When users retrieve geographic information on the web, specifying geographic location is an essential function. However, most current web search systems do not utilize location information sufficiently well to identify the user's intentions; available methods employ just keywords (for location names) and limited map functions. Furthermore, most map interfaces are used to select a determined geographic-hierarchy level or point to a specific location (sometimes specifying a radius). In this paper, we introduce twodimensional range query processing for geographic web search, where users are able to specify a geographic area freely on a map interface. In order to handle such range queries more rapidly and efficiently, we adopt geometric operations to retrieve proper web pages. Without optimization techniques, however, the recall and precisi...

• Type: Conference
• Year: 2003
• Where: DIGITALCITIES
• Authors: Ryong Lee, H. Shiina, Taro Tezuka, Yusuke Yokota, Hiroki Takakura, Yongjin Kwon, Yahiko Kambayashi
• Keywords: Applied Computing, DIGITALCITIES 2003, Geographic Area, Geographic Web, Geographic Web Search