4113 search results - page 318 / 823 » Watermarking Relational Databases |
124
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PODS
1998
ACM
15 years 9 months ago
1998
ACM
The problem of finding association rules in a large database of sales transactions has been widely studied in the literature, We discuss some of the weaknessesof the large itemset...
154
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DNIS
2010
Springer
15 years 8 months ago
2010
Springer
Access control for relational databases is a well researched area. An SQL query is allowed or denied access to database according to the specified access control policy. On the oth...
141
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PODS
2010
ACM
15 years 5 months ago
2010
ACM
We study functional and multivalued dependencies over SQL tables with NOT NULL constraints. Under a no-information interpretation of null values we develop tools for reasoning. We...
138
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EMNLP
2009
15 years 2 months ago
2009
This paper presents a new method of developing a large-scale hyponymy relation database by combining Wikipedia and other Web documents. We attach new words to the hyponymy databas...
167
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ICDT
2012
ACM
13 years 7 months ago
2012
ACM
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...