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… (More)
GG1 is a mobile phone based communication application. It monitors the security of an automobile by carrying pictorial, vocal and text data in real time using a very narrow bandwidth. This papers explains the software structure of GG1. Details of the architecture are presented to show how GG1 can accomplishes its work.