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153
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IJMMS
2007
15 years 6 months ago
2007
This paper investigates the role of ontologies as a central part of an architecture to repurpose existing material from the web. A prototype system called ArtEquAKT is presented, ...
181
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TRS
2008
15 years 6 months ago
2008
In this paper, we discuss an approach to structural objects based on a generalisation of indiscernibility relation used in rough set theory. The existing results in rough set theor...
164
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JCS
2008
15 years 6 months ago
2008
Controlled Query Evaluation (CQE) defines a logical framework to protect confidential information in a database. By modeling a user's a priori knowledge appropriately, a CQE ...
191
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STOC
2004
ACM
16 years 7 months ago
2004
ACM
A collaborative filtering system at an e-commerce site or similar service uses data about aggregate user behavior to make recommendations tailored to specific user interests. We d...
176
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ICS
2010
Tsinghua U.
16 years 4 months ago
2010
Tsinghua U.
We introduce the notion of "non-malleable codes" which relaxes the notion of error-correction and errordetection. Informally, a code is non-malleable if the message cont...