SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Existing data-integration systems based on the mediation architecture employ a variety of mechanisms to describe the query-processing capabilities ofsources. However, these system...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
A crucial consideration in environments where data is broadcast to clients is the low bandwidth available for clients to communicate with servers. Advanced applications in such en...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
We address the problem of query rewriting for TSL, a language for querying semistructured data. We develop and present an algorithm that, given a semistructured query q and a set ...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Traditional approaches for content-based image querying typically compute a single signature for each image based on color histograms, texture, wavelet transforms etc., and return...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
We explore the execution of queries with client-site userdefined functions (UDFs). Many UDFs can only be executed at the client site, for reasons of scalability, security, confide...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Several techniques that compute the join between two spatial datasets have been proposed during the last decade. Among these methods, some consider existing indices for the joined...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM