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» The Complexity of Futile Questioning
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ECCC
2010
95views more  ECCC 2010»
13 years 3 months ago
On optimal heuristic randomized semidecision procedures, with applications to proof complexity and cryptography
The existence of a (p-)optimal propositional proof system is a major open question in (proof) complexity; many people conjecture that such systems do not exist. Kraj
Edward A. Hirsch, Dmitry Itsykson, Ivan Monakhov, ...
ORL
2007
86views more  ORL 2007»
13 years 5 months ago
Complexity of two dual criteria scheduling problems
In this article we answer the complexity question of two dual criteria scheduling problems which had been open for a long time. Both problems are single machine scheduling problem...
Yumei Huo, Joseph Y.-T. Leung, Hairong Zhao
IJAC
2002
128views more  IJAC 2002»
13 years 6 months ago
Computational Complexity of Generators and Nongenerators in Algebra
Abstract. We discuss the computational complexity of several problems concerning subsets of an algebraic structure that generate the structure. We show that the problem of determin...
Clifford Bergman, Giora Slutzki
SIGIR
2006
ACM
14 years 8 days ago
Answering complex questions with random walk models
We present a novel framework for answering complex questions that relies on question decomposition. Complex questions are decomposed by a procedure that operates on a Markov chain...
Sanda M. Harabagiu, V. Finley Lacatusu, Andrew Hic...
NDQA
2004
119views Education» more  NDQA 2004»
13 years 7 months ago
Finding Answers to Complex Questions
This paper illustrates ongoing research and issues faced when dealing with real-time questions in the domain of Reusable Launch Vehicles (aerospace engineering). The question-answ...
Anne Diekema, Ozgur Yilmazel, Jiangping Chen, Sara...