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» Typing the Specialization Interface
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RECSYS
2009
ACM
15 years 10 months ago
Improving rating estimation in recommender systems using aggregation- and variance-based hierarchical models
Previous work on using external aggregate rating information showed that this information can be incorporated in several different types of recommender systems and improves their...
Akhmed Umyarov, Alexander Tuzhilin
ASIACRYPT
2007
Springer
15 years 10 months ago
When e-th Roots Become Easier Than Factoring
We show that computing e-th roots modulo n is easier than factoring n with currently known methods, given subexponential access to an oracle outputting the roots of numbers of the ...
Antoine Joux, David Naccache, Emmanuel Thomé...
ATAL
2007
Springer
15 years 10 months ago
Reasoning about judgment and preference aggregation
Agents that must reach agreements with other agents need to reason about how their preferences, judgments, and beliefs might be aggregated with those of others by the social choic...
Thomas Ågotnes, Wiebe van der Hoek, Michael ...
MICRO
2003
IEEE
116views Hardware» more  MICRO 2003»
15 years 9 months ago
Universal Mechanisms for Data-Parallel Architectures
Data-parallel programs are both growing in importance and increasing in diversity, resulting in specialized processors targeted at specific classes of these programs. This paper ...
Karthikeyan Sankaralingam, Stephen W. Keckler, Wil...
FOCS
2002
IEEE
15 years 9 months ago
A Constant-Factor Approximation Algorithm for the Multicommodity
We present the first constant-factor approximation algorithm for network design with multiple commodities and economies of scale. We consider the rent-or-buy problem, a type of m...
Amit Kumar, Anupam Gupta, Tim Roughgarden