An information filtering system for portable computers

Currently, we have many occasions to use portable computers such as personal data assistants (PDAs) and cellular phones. The wireless communication techniques have evolved rapidly, so that we can gather the necessary information from the Internet using the portable computers anytime and anywhere. However, browsing the information takes much tune because we usually have to obtain the information from the Internet using the portable computers having a low data transmission speed. In this paper, we propose an information caching algorithm for portable computers. Our method preferentially caches the files, the size of which is large, and is different from current web caching techniques.