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SIGIR
2012
ACM
11 years 8 months ago
Inferring missing relevance judgments from crowd workers via probabilistic matrix factorization
In crowdsourced relevance judging, each crowd worker typically judges only a small number of examples, yielding a sparse and imbalanced set of judgments in which relatively few wo...
Hyun Joon Jung, Matthew Lease
CSFW
2012
IEEE
11 years 8 months ago
Measuring Information Leakage Using Generalized Gain Functions
Abstract—This paper introduces g-leakage, a rich generalization of the min-entropy model of quantitative information flow. In g-leakage, the benefit that an adversary derives f...
Mário S. Alvim, Konstantinos Chatzikokolaki...
ICCAD
2004
IEEE
121views Hardware» more  ICCAD 2004»
14 years 3 months ago
Factoring and eliminating common subexpressions in polynomial expressions
Polynomial expressions are used to compute a wide variety of mathematical functions commonly found in signal processing and graphics applications, which provide good opportunities...
Anup Hosangadi, Farzan Fallah, Ryan Kastner
FOCS
2006
IEEE
14 years 14 days ago
On a Geometric Generalization of the Upper Bound Theorem
We prove an upper bound, tight up to a factor of 2, for the number of vertices of level at most in an arrangement of n halfspaces in Rd , for arbitrary n and d (in particular, the...
Uli Wagner
CGF
2008
111views more  CGF 2008»
13 years 6 months ago
An Analysis of the In-Out BRDF Factorization for View-Dependent Relighting
Interactive rendering with dynamic natural lighting and changing view is a long-standing goal in computer graphics. Recently, precomputation-based methods for all-frequency religh...
Dhruv Mahajan, Yu-Ting Tseng, Ravi Ramamoorthi