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ECML
2005
Springer
14 years 2 months ago
Learning from Positive and Unlabeled Examples with Different Data Distributions
Abstract. We study the problem of learning from positive and unlabeled examples. Although several techniques exist for dealing with this problem, they all assume that positive exam...
Xiaoli Li, Bing Liu
ISCA
2003
IEEE
107views Hardware» more  ISCA 2003»
14 years 2 months ago
Positional Adaptation of Processors: Application to Energy Reduction
Although adaptive processors can exploit application variability to improve performance or save energy, effectively managing their adaptivity is challenging. To address this probl...
Michael C. Huang, Jose Renau, Josep Torrellas
ICDE
1998
IEEE
139views Database» more  ICDE 1998»
14 years 1 months ago
Cost and Imprecision in Modeling the Position of Moving Objects
Consider a database that represents the location of moving objects, such as taxi-cabs (typical query: retrieve the cabs that are currently within 1 mile of 33 Michigan Ave., Chica...
Ouri Wolfson, Sam Chamberlain, Son Dao, Liqin Jian...
JUCS
2010
106views more  JUCS 2010»
13 years 7 months ago
A Heuristic Approach to Positive Root Isolation for Multiple Power Sums
: Given a multiple power sum (extending polynomial’s exponents to real numbers), the positive root isolation problem is to find a list of disjoint intervals, satisfying that the...
Ming Xu, Chuandong Mu, Zhenbing Zeng, Zhi-bin Li
CIE
2009
Springer
14 years 3 months ago
Complexity of Existential Positive First-Order Logic
Let Γ be a (not necessarily finite) structure with a finite relational signature. We prove that deciding whether a given existential positive sentence holds in Γ is in LOGSPACE...
Manuel Bodirsky, Miki Hermann, Florian Richoux