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DCG
2007
83views more  DCG 2007»
13 years 7 months ago
The Genus of a Digital Image Boundary Is Determined by Its Foreground, Background, and Reeb Graphs
Weprovethatthegenusoftheboundaryofadigitalimageispreciselyhalfofthe sum of the cycle ranks of three particular graphs: the “foreground graph” and “background graph,” which ...
Lowell Abrams, Donniell E. Fishkind
LREC
2008
105views Education» more  LREC 2008»
13 years 9 months ago
Extraction and Evaluation of Keywords from Learning Objects: a Multilingual Approach
We report about a project which brings together Natural Language Processing and eLearning. One of the functionalities developed within this project is the possibility to annotate ...
Lothar Lemnitzer, Paola Monachesi
STOC
2010
ACM
200views Algorithms» more  STOC 2010»
14 years 5 months ago
Hardness Amplification in Proof Complexity
We present a generic method for converting any family of unsatisfiable CNF formulas that require large resolution rank into CNF formulas whose refutation requires large rank for p...
Paul Beame, Trinh Huynh and Toniann Pitassi
TEC
2010
132views more  TEC 2010»
13 years 2 months ago
A Hybrid Evolutionary Approach to the Nurse Rostering Problem
Nurse rostering is a difficult search problem with many constraints. In the literature, a number of approaches have been investigated including penalty function methods to tackle t...
Ruibin Bai, Edmund K. Burke, Graham Kendall, Jingp...
PKDD
2010
Springer
169views Data Mining» more  PKDD 2010»
13 years 5 months ago
Classification with Sums of Separable Functions
Abstract. We present a novel approach for classification using a discretised function representation which is independent of the data locations. We construct the classifier as a su...
Jochen Garcke