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» Combination of Lower Bounds in Exact BDD Minimization
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BMCBI
2007
153views more  BMCBI 2007»
13 years 5 months ago
Lower bounds on multiple sequence alignment using exact 3-way alignment
Background: Multiple sequence alignment is fundamental. Exponential growth in computation time appears to be inevitable when an optimal alignment is required for many sequences. E...
Charles J. Colbourn, Sudhir Kumar
ICCAD
2006
IEEE
152views Hardware» more  ICCAD 2006»
14 years 2 months ago
System-wide energy minimization for real-time tasks: lower bound and approximation
We present a dynamic voltage scaling (DVS) technique that minimizes system-wide energy consumption for both periodic and sporadic tasks. It is known that a system consists of proc...
Xiliang Zhong, Cheng-Zhong Xu
INFORMS
2010
125views more  INFORMS 2010»
13 years 3 months ago
Combining Exact and Heuristic Approaches for the Capacitated Fixed-Charge Network Flow Problem
We develop a solution approach for the fixed charge network flow problem (FCNF) that produces provably high-quality solutions quickly. The solution approach combines mathematica...
Mike Hewitt, George L. Nemhauser, Martin W. P. Sav...
DATE
1998
IEEE
93views Hardware» more  DATE 1998»
13 years 9 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
SODA
2010
ACM
185views Algorithms» more  SODA 2010»
13 years 3 months ago
Solving MAX-r-SAT Above a Tight Lower Bound
We present an exact algorithm that decides, for every fixed r ≥ 2 in time O(m) + 2O(k2 ) whether a given multiset of m clauses of size r admits a truth assignment that satisfi...
Noga Alon, Gregory Gutin, Eun Jung Kim, Stefan Sze...