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SIGIR
2012
ACM
13 years 2 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
13 years 2 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»
15 years 8 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
15 years 5 months 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»
14 years 11 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