989 search results - page 46 / 198 » Version spaces and the consistency problem |
IS
2008
13 years 9 months ago
2008
Consistent query answering is the problem of characterizing and computing the semantically correct answers to queries from a database that may not satisfy certain integrity constr...
CORR
2007
Springer
13 years 9 months ago
2007
Springer
—Motivated by questions in lossy data compression and by theoretical considerations, the problem of estimating the rate-distortion function of an unknown (not necessarily discret...
FOCS
2006
IEEE
14 years 3 months ago
2006
IEEE
Given an n-element set U and a family of subsets S ⊆ 2U we show how to count the number of k-partitions S1 ∪ · · · ∪ Sk = U into subsets Si ∈ S in time 2nnO(1). The only...
EDBT
2002
ACM
14 years 9 months ago
2002
ACM
The amount of stored information is exploding while, at the same time, tools for accessing relevant information are rather under-developed. Usually, all users have a pre-defined vi...
ACCV
2010
Springer
13 years 4 months ago
2010
Springer
Abstract. Estimation using homogeneous entities has to cope with obstacles such as singularities of covariance matrices and redundant parametrizations which do not allow an immedia...