Issues in cache-answerability for XML queries on the Web

Abstract

Recently, semantic caching for the database-backed Web applications has received much attention. Since emergence of XML as a standard for data exchange on the Web, today's Web applications are to retrieve information from the remote XML source across the network. Cache-answerability for XML queries is thus crucial for efficient support of XML database-backed Web applications. In this paper, we address two issues involved in realizing such functionality: incremental refresh of the XML cache against the updates at XML source, and integration of the partial query results obtained from the cache and from the source..