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CVPR
2012
IEEE
13 years 1 days ago
Sum-product networks for modeling activities with stochastic structure
This paper addresses recognition of human activities with stochastic structure, characterized by variable spacetime arrangements of primitive actions, and conducted by a variable ...
Mohamed R. Amer, Sinisa Todorovic
FOCS
2006
IEEE
15 years 3 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
CPC
2010
117views more  CPC 2010»
14 years 7 months ago
On the Number of Perfect Matchings in Random Lifts
Let G be a fixed connected multigraph with no loops. A random n-lift of G is obtained by replacing each vertex of G by a set of n vertices (where these sets are pairwise disjoint)...
Catherine S. Greenhill, Svante Janson, Andrzej Ruc...
APPROX
2011
Springer
234views Algorithms» more  APPROX 2011»
13 years 9 months ago
Streaming Algorithms with One-Sided Estimation
Abstract. We study the space complexity of randomized streaming algorithms that provide one-sided approximation guarantees; e.g., the algorithm always returns an overestimate of th...
Joshua Brody, David P. Woodruff
TCC
2009
Springer
132views Cryptology» more  TCC 2009»
15 years 10 months ago
Authenticated Adversarial Routing
: The aim of this paper is to demonstrate the feasibility of authenticated throughput-ecient routing in an unreliable and dynamically changing synchronous network in which the majo...
Yair Amir, Paul Bunn, Rafail Ostrovsky