A retrieval method for real-time spatial data browsing

Abstract

This paper presents a retrieval method for real-time spatial data browsing through a computer network. This method is designed based on”anytime algorithm” that improves a quality of the processing results over time. The retrieval method decomposes a region specified in a query into sub-regions and searches at each decomposed region using a spatial index. The searched data are kept as the intermediate results for the query and these results are incrementally sent to a client. Consequently, the client can incrementally browse spatial data for the query. We implemented this retrieval system using Java language and constructed a map browsing system as a sample application. Through some experiments, we discussed the effectiveness of our retrieval system.