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» Some Theorems We Should Prove
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ICALP
2010
Springer
15 years 20 hour ago
Choosing, Agreeing, and Eliminating in Communication Complexity
We consider several questions inspired by the direct-sum problem in (two-party) communication complexity. In all questions, there are k fixed Boolean functions f1, . . . , fk and ...
Amos Beimel, Sebastian Ben Daniel, Eyal Kushilevit...
VTC
2007
IEEE
103views Communications» more  VTC 2007»
15 years 4 months ago
On the Problems of Symbol-Spaced Tapped-Delay-Line Models for WSSUS Channels
—This paper reviews the pertinence and statistical behavior of symbol-spaced tapped-delay-line (TDL) models which are widely used to model wide-sense stationary uncorrelated scat...
Carlos A. Gutiérrez-Díaz-de-Le&oacut...
DIALM
2003
ACM
99views Algorithms» more  DIALM 2003»
15 years 3 months ago
Spatio-temporal data reduction with deterministic error bounds
A common way of storing spatio-temporal information about mobile devices is in the form of a 3D (2D geography + time) trajectory. We argue that when cellular phones and Personal D...
Hu Cao, Ouri Wolfson, Goce Trajcevski
PODS
2007
ACM
171views Database» more  PODS 2007»
15 years 10 months ago
Monadic datalog over finite structures with bounded treewidth
Bounded treewidth and Monadic Second Order (MSO) logic have proved to be key concepts in establishing fixed-parameter tractability results. Indeed, by Courcelle's Theorem we ...
Georg Gottlob, Reinhard Pichler, Fang Wei
FOCS
2008
IEEE
15 years 4 months ago
Almost-Natural Proofs
Razborov and Rudich have shown that so-called natural proofs are not useful for separating P from NP unless hard pseudorandom number generators do not exist. This famous result is...
Timothy Y. Chow