1008 search results - page 94 / 202 » Logic and Databases |
152
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CADE
2001
Springer
16 years 2 months ago
2001
Springer
Abstract. Skepticism is one of the most important semantic intuitions in artificial intelligence. The semantics formalizing skeptical reasoning in (disjunctive) logic programming i...
182
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SIGMOD
2008
ACM
16 years 2 months ago
2008
ACM
The emergence of database languages with side effects, notably for XML, raises significant challenges for database compilers and optimizers. In this paper, we extend an algebra fo...
138
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ACNS
2004
Springer
15 years 8 months ago
2004
Springer
We present a practical protection mechanism against SQL injection attacks. Such attacks target databases that are accessible through a web frontend, and take advantage of flaws in...
102
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VLDB
1994
ACM
15 years 6 months ago
1994
ACM
In this paper, we consider various spatial relationships that are of general interest in pictorial database systems. We present a set of rules that allow us to deduce new relation...
127
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AGIS
2000
15 years 2 months ago
2000
Following a brief discussion on various aspects of data quality, possible methods are examined for the detection of errors in a spatial database. Using examples, we introduce the c...