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ISSAC
2005
Springer
115views Mathematics» more  ISSAC 2005»
14 years 1 months ago
On the complexity of factoring bivariate supersparse (Lacunary) polynomials
We present algorithms that compute the linear and quadratic factors of supersparse (lacunary) bivariate polynomials over the rational numbers in polynomial-time in the input size....
Erich Kaltofen, Pascal Koiran
WINE
2010
Springer
168views Economy» more  WINE 2010»
13 years 5 months ago
On the Competitive Ratio of Online Sampling Auctions
We study online profit-maximizing auctions for digital goods with adversarial bid selection and uniformly random arrivals. Our goal is to design auctions that are constant competit...
Elias Koutsoupias, George Pierrakos
KBSE
2007
IEEE
14 years 2 months ago
Nighthawk: a two-level genetic-random unit test data generator
Randomized testing has been shown to be an effective method for testing software units. However, the thoroughness of randomized unit testing varies widely according to the settin...
James H. Andrews, Felix Chun Hang Li, Tim Menzies
COR
2010
146views more  COR 2010»
13 years 8 months ago
A search space "cartography" for guiding graph coloring heuristics
We present a search space analysis and its application in improving local search algorithms for the graph coloring problem. Using a classical distance measure between colorings, w...
Daniel Cosmin Porumbel, Jin-Kao Hao, Pascale Kuntz
SDM
2009
SIAM
125views Data Mining» more  SDM 2009»
14 years 5 months ago
Providing Privacy through Plausibly Deniable Search.
Query-based web search is an integral part of many people’s daily activities. Most do not realize that their search history can be used to identify them (and their interests). I...
Chris Clifton, Mummoorthy Murugesan