423 search results - page 22 / 85 » Evaluating TOP-K Queries over Business Processes |
SIGMOD
2004
ACM
14 years 10 months ago
2004
ACM
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...
SEMWEB
2009
Springer
14 years 4 months ago
2009
Springer
Spreadsheet tools are often used in business and private scenarios in order to collect and store data, and to explore and analyze these data by executing functions and aggregation...
CIKM
2008
Springer
14 years 2 days ago
2008
Springer
The typical workload in a database system consists of a mixture of multiple queries of different types, running concurrently and interacting with each other. Hence, optimizing per...
PVLDB
2010
13 years 8 months ago
2010
We consider the problem of efficiently finding the top-k answers for join queries over web-accessible databases. Classical algorithms for finding top-k answers use branch-and-b...
DL
1997
Springer
14 years 2 months ago
1997
Springer
Non-uniform query languages make searching over heterogeneous information sources difficult. Our approach is to allow a user to compose Boolean queries in one rich front-end lang...