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STOC
2010
ACM
224views Algorithms» more  STOC 2010»
13 years 11 months ago
Satisfiability Allows No Nontrivial Sparsification Unless The Polynomial-Time Hierarchy Collapses
Consider the following two-player communication process to decide a language L: The first player holds the entire input x but is polynomially bounded; the second player is computa...
Holger Dell and Dieter van Melkebeek
ERCIMDL
2004
Springer
116views Education» more  ERCIMDL 2004»
14 years 27 days ago
Towards a Policy Language for Humans and Computers
Abstract. A policy is a statement that an action is permitted or forbidden if certain conditions hold. We introduce a language for reasoning about policies called Rosetta. What mak...
Vicky Weissman, Carl Lagoze
ICALP
2009
Springer
14 years 7 months ago
Unconditional Lower Bounds against Advice
We show several unconditional lower bounds for exponential time classes against polynomial time classes with advice, including:
Harry Buhrman, Lance Fortnow, Rahul Santhanam
IFIP
2004
Springer
14 years 26 days ago
Tailoring Recursion to Characterize Non-Deterministic Complexity Classes over Arbitrary Structures
We provide machine-independent characterizations of some complexity classes, over an arbitrary structure, in the model of computation proposed by L. Blum, M. Shub and S. Smale. We ...
Olivier Bournez, Felipe Cucker, Paulin Jacob&eacut...
EMNLP
2010
13 years 5 months ago
Soft Syntactic Constraints for Hierarchical Phrase-Based Translation Using Latent Syntactic Distributions
In this paper, we present a novel approach to enhance hierarchical phrase-based machine translation systems with linguistically motivated syntactic features. Rather than directly ...
Zhongqiang Huang, Martin Cmejrek, Bowen Zhou