6495 search results - page 890 / 1299 » Modeling Multidimensional Databases |
262
Voted
PODS
2001
ACM
16 years 7 months ago
2001
ACM
The dimensionality curse has profound e ects on the effectiveness of high-dimensional similarity indexing from the performance perspective. One of the well known techniques for im...
309
Voted
PODS
2004
ACM
16 years 7 months ago
2004
ACM
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
199
click to vote
EDBT
2004
ACM
16 years 7 months ago
2004
ACM
The join operation, which combines tuples from multiple relations, is the most fundamental and, typically, the most expensive operation in database queries. The standard approach t...
200
Voted
WWW
2010
ACM
16 years 1 months ago
2010
ACM
The World-Wide Web consists not only of a huge number of unstructured texts, but also a vast amount of valuable structured data. Web tables [2] are a typical type of structured in...
204
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DEXA
2009
Springer
16 years 1 months ago
2009
Springer
Describing relational data sources (i.e. databases) by means of ontologies constitutes the foundation of most of the semantic based approaches to data access and integration. In sp...