617 search results - page 18 / 124 » Semantic queries in databases: problems and challenges |
CORR
2002
Springer
13 years 8 months ago
2002
Springer
A relational database is inconsistent if it does not satisfy a given set of integrity constraints. Nevertheless, it is likely that most of the data in it is consistent with the co...
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Many modern software systems provide progress indicators for long-running tasks. These progress indicators make systems more user-friendly by helping the user quickly estimate how...
DMKD
2004
ACM
14 years 2 months ago
2004
ACM
To enable information integration, schema matching is a critical step for discovering semantic correspondences of attributes across heterogeneous sources. As a new attempt, this p...
CIVR
2006
Springer
14 years 15 days ago
2006
Springer
High-dimensional index is one of the most challenging tasks for content-based video retrieval (CBVR). Typically, in video database, there exist two kinds of clues for query: visual...
DEXA
2003
Springer
14 years 2 months ago
2003
Springer
Query optimizers in current database management systems (DBMS) often face problems such as intolerably long optimization time and/or poor optimization results when optimizing compl...