7904 search results - page 194 / 1581 » Sequence Query Processing |
SIGMOD
2001
ACM
14 years 9 months ago
2001
ACM
An -appro ximate quantile summary of a sequence of N elements is a data structure that can answer quantile queries about the sequence to within a precision of N. We presen t a new...
DCC
2008
IEEE
14 years 8 months ago
2008
IEEE
Recent advances in compressed data structures have led to the new concept of self-indexing; it is possible to represent a sequence of symbols compressed in a form that enables fas...
ICDE
2000
IEEE
14 years 10 months ago
2000
IEEE
Most real-world database applications contain a substantial portion of time-referenced, or temporal, data. Recent advances in temporal query languages show that such database appl...
ICTAI
2003
IEEE
14 years 2 months ago
2003
IEEE
We investigate two seemingly incompatible approaches for improving document retrieval performance in the context of question answering: query expansion and query reduction. Querie...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...