Supporting temporal text-containment queries in temporal document databases

Kjetil Nørvåg
<span title="">2004</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ueo4clepdnbdzhqnuojj57edri" style="color: black;">Data &amp; Knowledge Engineering</a> </i> &nbsp;
In temporal document databases and temporal XML databases, temporal text-containment queries are a potential performance bottleneck. In this paper we describe how to manage documents and index structures in such databases in a way that makes temporal textcontainment querying feasible. We describe and discuss different index structures that can improve such queries. Three of the alternatives have been implemented in the V2 temporal document database system, and the performance of the index
more &raquo; ... ures is studied using temporal web data. The results show that even a very simple time-indexing approach can reduce query cost by up to three orders of magnitude.
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