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170
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GCC
2005
Springer
16 years 11 days ago
2005
Springer
In order to deal with free riding in P2P system, incentive mechanism or rating system is presented, and each user rating is computed by itself, which causes that some users exagger...
191
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ICALP
2005
Springer
16 years 11 days ago
2005
Springer
The firing rule of Petri nets relies on a residuation operation for the commutative monoid of natural numbers. We identify a class of residuated commutative monoids, called Petri ...
167
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SEMWEB
2005
Springer
16 years 9 days ago
2005
Springer
Recommender algorithms have been quite successfully employed in a variety of scenarios from filtering applications to recommendations of movies and books at Amazon.com. However, a...
186
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EDBT
2004
ACM
16 years 7 days ago
2004
ACM
Abstract. We present a cost-based adaptive clustering method to improve average performance of spatial queries (intersection, containment, enclosure queries) over large collections...
219
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FC
2004
Springer
16 years 7 days ago
2004
Springer
Abstract. Systems for the support of customer relationship management are becoming increasingly attractive for vendors. Loyalty systems provide an interesting possibility for vendo...