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IR
2008
13 years 8 months ago
A compressed self-index using a Ziv-Lempel dictionary
A compressed full-text self-index for a text T , of size u, is a data structure used to search for patterns P, of size m, in T , that requires reduced space, i.e. space that depend...
Luís M. S. Russo, Arlindo L. Oliveira
ICDT
2001
ACM
116views Database» more  ICDT 2001»
14 years 1 months ago
On Optimizing Nearest Neighbor Queries in High-Dimensional Data Spaces
Abstract. Nearest-neighbor queries in high-dimensional space are of high importance in various applications, especially in content-based indexing of multimedia data. For an optimiz...
Stefan Berchtold, Christian Böhm, Daniel A. K...
DEXA
1998
Springer
140views Database» more  DEXA 1998»
14 years 1 months ago
An Analytical Study of Object Identifier Indexing
The object identifier index of an object-oriented database system is typically 20% of the size of the database itself, and for large databases, only a small part of the index fits...
Kjetil Nørvåg, Kjell Bratbergsengen
CIKM
2010
Springer
13 years 6 months ago
Utilizing re-finding for personalized information retrieval
Individuals often use search engines to return to web pages they have previously visited. This behaviour, called refinding, accounts for about 38% of all queries. While researcher...
Sarah K. Tyler, Jian Wang, Yi Zhang 0001
ICDE
2006
IEEE
167views Database» more  ICDE 2006»
14 years 10 months ago
Better Burst Detection
A burst is a large number of events occurring within a certain time window. As an unusual activity, it's a noteworthy phenomenon in many natural and social processes. Many da...
Xin Zhang, Dennis Shasha