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WWW
2008
ACM
14 years 9 months ago
2008
ACM
We study the Cost-Per-Action or Cost-Per-Acquisition (CPA) charging scheme in online advertising. In this scheme, instead of paying per click, the advertisers pay only when a user...
WWW
2005
ACM
14 years 9 months ago
2005
ACM
Web pages contain a combination of unique content and template material, which is present across multiple pages and used primarily for formatting, navigation, and branding. We stu...
STOC
2009
ACM
14 years 8 months ago
2009
ACM
We consider the stochastic Steiner forest problem: suppose we were given a collection of Steiner forest instances, and were guaranteed that a random one of these instances would a...
STOC
2009
ACM
14 years 8 months ago
2009
ACM
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
EUROCRYPT
2009
Springer
14 years 8 months ago
2009
Springer
Recently, at Crypto 2008, Boneh, Halevi, Hamburg, and Ostrovsky (BHHO) solved the longstanding open problem of "circular encryption," by presenting a public key encrypti...