909 search results - page 89 / 182 » On the approximability of some network design problems |
172
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RECSYS
2010
ACM
15 years 6 months ago
2010
ACM
An increasing number of social networking platforms are giving users the option to endorse entities that they find appealing, such as videos, photos, or even other users. We defin...
185
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INFOCOM
2003
IEEE
15 years 11 months ago
2003
IEEE
Abstract— Emerging spread spectrum high-speed data networks utilize multiple channels via orthogonal codes or frequency-hopping patterns such that multiple users can transmit con...
160
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KDD
2009
ACM
16 years 1 months ago
2009
ACM
In this paper we propose a utility model that accounts for both sales and branding advertisers. We first study the computational complexity of optimization problems related to bo...
175
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JSS
2010
15 years 4 months ago
2010
This paper investigates a class of mobile wireless sensor networks that are unconnected most of the times; we refer to them as delay–tolerant wireless sensor networks (DTWSN). T...
163
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INFOCOM
2010
IEEE
15 years 4 months ago
2010
IEEE
—We consider a widely applicable model of resource allocation where two sequences of events are coupled: on a continuous time axis (t), network dynamics evolve over time. On a di...