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ECCC
2010
111views more  ECCC 2010»
13 years 6 months ago
Tight Bounds on the Approximability of Almost-satisfiable Horn SAT and Exact Hitting Set}
We study the approximability of two natural Boolean constraint satisfaction problems: Horn satisfiability and exact hitting set. Under the Unique Games conjecture, we prove the fo...
Venkatesan Guruswami, Yuan Zhou
SIGMETRICS
2000
ACM
105views Hardware» more  SIGMETRICS 2000»
13 years 11 months ago
Using the exact state space of a Markov model to compute approximate stationary measures
We present a new approximation algorithm based on an exact representation of the state space S, using decision diagrams, and of the transition rate matrix R, using Kronecker algeb...
Andrew S. Miner, Gianfranco Ciardo, Susanna Donate...
CPM
1998
Springer
132views Combinatorics» more  CPM 1998»
13 years 11 months ago
Reporting Exact and Approximate Regular Expression Matches
While much work has been done on determining if a document or a line of a document contains an exact or approximate match to a regular expression, less e ort has been expended in ...
Eugene W. Myers, Paulo Oliva, Katia S. Guimar&atil...
DATE
1998
IEEE
93views Hardware» more  DATE 1998»
13 years 11 months ago
Exact and Approximate Estimation for Maximum Instantaneous Current of CMOS Circuits
We present an integer-linear-programming-based approach for estimating the maximum instantaneous current through the power supply lines for CMOS circuits. It produces the exact so...
Yi-Min Jiang, Kwang-Ting Cheng
TC
2011
13 years 1 months ago
Exact and Approximated Error of the FMA
Abstract—The fused multiply accumulate-add (FMA) instruction, specified by the IEEE 754-2008 Standard for Floating-Point Arithmetic, eases some calculations, and is already avai...
Sylvie Boldo, Jean-Michel Muller