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» Approximations in Distributed Optimization
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STOC
2005
ACM
174views Algorithms» more  STOC 2005»
16 years 6 months ago
On the average case performance of some greedy approximation algorithms for the uncapacitated facility location problem
In combinatorial optimization, a popular approach to NP-hard problems is the design of approximation algorithms. These algorithms typically run in polynomial time and are guarante...
Abraham Flaxman, Alan M. Frieze, Juan Carlos Vera
ICCAD
2006
IEEE
152views Hardware» more  ICCAD 2006»
16 years 3 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
SIGMOD
1998
ACM
96views Database» more  SIGMOD 1998»
15 years 10 months ago
Wavelet-Based Histograms for Selectivity Estimation
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
Yossi Matias, Jeffrey Scott Vitter, Min Wang
CORR
2008
Springer
114views Education» more  CORR 2008»
15 years 6 months ago
Algorithmic Pricing via Virtual Valuations
Algorithmic pricing is the computational problem that sellers (e.g., in supermarkets) face when trying to set prices for their items to maximize their profit in the presence of a ...
Shuchi Chawla, Jason D. Hartline, Robert Kleinberg
INFOCOM
2006
IEEE
16 years 14 days ago
A Statistical Framework for Intrusion Detection in Ad Hoc Networks
— We focus on detecting intrusions in ad hoc networks using the misuse detection technique. We allow for detection modules that periodically fail to detect attacks and also gener...
Dhanant Subhadrabandhu, Saswati Sarkar, Farooq Anj...