1042 search results - page 7 / 209 » Constraint Databases, Data Structures and Efficient Query Ev... |
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
To facilitate queries over semi-structured data, various structural summaries have been proposed. Structural summaries are derived directly from the data and serve as indices for ...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
Incomplete databases, that is, databases that are missing data, are present in many research domains. It is important to derive techniques to access these databases efficiently. We...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Answering queries using materialized views has been well studied in the context of structured queries and has shown significant performance benefits. Despite the popularity of keyw...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
We introduce a novel query type defined over streaming moving object data, namely, the Continuous Motion Pattern (CMP) Queries. A motion pattern is defined as a sequence of distin...
VLDB
1998
ACM
13 years 11 months ago
1998
ACM
We propose and evaluate two indexing schemes for improving the efficiency of data retrieval in high-dimensional databases that are incomplete. These schemes are novel in that the ...