617 search results - page 17 / 124 » Semantic queries in databases: problems and challenges |
EDBTW
2006
Springer
14 years 13 days ago
2006
Springer
Regular path queries are the basic navigational component of virtually all the mechanisms for querying semistructured data commonly found in information integration applications, W...
SDB
1995
14 years 9 days ago
1995
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...
ADC
2000
Springer
14 years 1 months ago
2000
Springer
Annotated speech corpora are databases consisting of signal data along with time-aligned symbolic ‘transcriptions’. Such databases are typically multidimensional, heterogeneou...
VLDB
2004
ACM
14 years 2 months ago
2004
ACM
Query containment is the most fundamental relationship between a pair of database queries: a query Q is said to be contained in a query Q if the answer for Q is always a subset of...
PVLDB
2008
13 years 8 months ago
2008
Uncertainty pervades many domains in our lives. Current real-life applications, e.g., location tracking using GPS devices or cell phones, multimedia feature extraction, and sensor...