Affiliations: Department of Computer Science and Engineering, Korea
University 5-1, Anam-dong, Seongbuk-Ku, Seoul 136-701, Korea
Note: [] Corresponding author: Sang-Won Kang, Department of Computer
Science and Engineering, Korea University, 5-1, Anam-dong, Seongbuk-Ku, Seoul
136-701, Korea. Tel.: +82 2 924 0547; Fax: +82 2 953 0771; E-mail:
[email protected]
Abstract: In mobile computing environments, location plays an important role
in determining user's interests. If service providers can supply information
reflecting users' semantics, overall system performance can be improved. Users
can avoid queries, resulting in unnecessary network usage. A query result can
also be transferred to a local device. Through our proposed semantic
prefetching scheme, we make it possible to send data to mobile clients in
advance. Researchers have been, for a long time, trying to develop a method to
overcome mobile information system issues. These issues consist mainly of low
bandwidth, high delay and frequent disconnections. In this paper, we represent
the semantic prefetching strategy, which utilizes users' interests, relating to
a users' current location. Our performance results show that this method is
superior when compared with traditional semantic cache schemes.
