2867 search results - page 129 / 574 » Effectiveness of Index Expressions |
199
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SIGMOD
1997
ACM
15 years 10 months ago
1997
ACM
We study similarity queries for time series data where similarity is defined in terms of a set of linear transformations on the Fourier series representation of a sequence. We ha...
195
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ISMIS
1997
Springer
15 years 10 months ago
1997
Springer
e about image features can be expressed as a hierarchical structure called a Type Abstraction Hierarchy (TAH). TAHs can be generated automatically by clustering algorithms based on...
299
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Due to the structural heterogeneity of XML, queries are often interpreted approximately. This is achieved by relaxing the query and ranking the results based on their relevance to ...
268
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VLDB
2004
ACM
16 years 6 months ago
2004
ACM
In this paper, we propose a new tunable index scheme, called iMinMax(), that maps points in highdimensional spaces to single-dimensional values determined by their maximum or minim...
190
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ECIR
2003
Springer
15 years 7 months ago
2003
Springer
We present a user-centred, task-oriented, comparative evaluation of two query-based document skimming tools. ProfileSkim bases within-document retrieval on computing a relevance pr...