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230
Voted
POPL
2006
ACM
16 years 3 months ago
2006
ACM
In POPL 2002, Petrank and Rawitz showed a universal result-finding optimal data placement is not only NP-hard but also impossible to approximate within a constant factor if P = NP...
126
Voted
SODA
2010
ACM
16 years 4 days ago
2010
ACM
We consider the problem of approximating a set P of n points in Rd by a j-dimensional subspace under the p measure, in which we wish to minimize the sum of p distances from each p...
125
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WWW
2010
ACM
15 years 9 months ago
2010
ACM
With the increasing popularity of location-based services, such as tour guide and location-based social network, we now have accumulated many location data on the Web. In this pap...
115
Voted
ICDE
2009
IEEE
15 years 9 months ago
2009
IEEE
Abstract— Customized semantic query answering, personalized search, focused crawlers and localized search engines frequently focus on ranking the pages contained within a subgrap...
134
Voted
RECSYS
2009
ACM
15 years 9 months ago
2009
ACM
With the exponential growth of Web contents, Recommender System has become indispensable for discovering new information that might interest Web users. Despite their success in th...