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162
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IJNSEC
2008
15 years 6 months ago
2008
Recently, Tian et al. presented an article, in which they discussed some security weaknesses of Yoon et al.'s scheme and subsequently proposed two "improved" scheme...
197
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COMBINATORICS
2007
15 years 6 months ago
2007
The idea of graph compositions, which was introduced by A. Knopfmacher and M. E. Mays, generalizes both ordinary compositions of positive integers and partitions of finite sets. ...
181
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COMBINATORICS
2007
15 years 6 months ago
2007
A graph is self-complementary if it is isomorphic to its complement. In this paper we prove that every forest of order 4p and size less than 3p is a subgraph of a self-complementa...
159
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IJCSA
2006
15 years 6 months ago
2006
Application of hybrid recommendation enables overcoming disadvantages of the basic recommendation methods: demographic, collaborative and content-based. In this paper the two cons...
199
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JCT
2008
15 years 6 months ago
2008
Given an undirected hypergraph and a subset of vertices S V with a specified root vertex r S, the STEINER ROOTED-ORIENTATION problem is to find an orientation of all the hypered...