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186
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ICC
2009
IEEE
15 years 4 months ago
2009
IEEE
In the OFDMA downlink, obtaining Channel State Information (CSI) from users is necessary for the Base Station (BS) to optimize network performance by intelligently allocating resou...
180
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ICMCS
2009
IEEE
15 years 4 months ago
2009
IEEE
Online social networking sites such as Flickr and Facebook provide a diverse range of functionalities that foster online communities to create and share media content. In particul...
197
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ICWSM
2009
15 years 4 months ago
2009
A particularly challenging task for recommender systems (RSs) is deciding whether to recommend an item that received a variety of high and low scores from its users. RSs that inco...
207
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CONSTRAINTS
2010
15 years 3 months ago
2010
The subgraph isomorphism problem consists in deciding if there exists a copy of a pattern graph in a target graph. We introduce in this paper a global constraint and an associated ...
193
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DPD
2010
15 years 3 months ago
2010
In distributed database systems, tables are frequently fragmented and replicated over a number of sites in order to reduce network communication costs. How to fragment, when to rep...