13706 search results - page 2571 / 2742 » Information Problems in Information Society |
237
click to vote
SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Schema mappings are logical assertions that specify the relationships between a source and a target schema in a declarative way. The specification of such mappings is a fundamenta...
278
click to vote
SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
While database management systems offer a comprehensive solution to data storage, they require deep knowledge of the schema, as well as the data manipulation language, in order to...
248
click to vote
SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
The Boolean semantics of SQL queries cannot adequately capture the "fuzzy" preferences and "soft" criteria required in non-traditional data retrieval applicati...
398
click to vote
SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
Given a dataset P and a preference function f, a top-k query retrieves the k tuples in P with the highest scores according to f. Even though the problem is well-studied in convent...
209
click to vote
SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Similarity search in large time series databases has attracted much research interest recently. It is a difficult problem because of the typically high dimensionality of the data....