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ICPR
2006
IEEE
14 years 10 months ago
Precision-recall operating characteristic (P-ROC) curves in imprecise environments
Traditionally, machine learning algorithms have been evaluated in applications where assumptions can be reliably made about class priors and/or misclassification costs. In this pa...
Thomas Landgrebe, Pavel Paclík, Robert P. W...
SIGCSE
2006
ACM
163views Education» more  SIGCSE 2006»
14 years 3 months ago
TextMOLE: text mining operations library and environment
The paper describes the first version of the TextMOLE (Text Mining Operations Library and Environment) system for textual data mining. Currently TextMOLE acts as an advanced inde...
Daniel B. Waegel, April Kontostathis
WECWIS
2003
IEEE
90views ECommerce» more  WECWIS 2003»
14 years 2 months ago
A Web Agent for Automating E-Commerce Operations
The great amount of information that a user handles in their typical transactions on the Internet –identifiers, addresses, credit card numbers, among others-, makes it necessary...
Juan Raposo, Manuel Álvarez, Ángel V...
ECTEL
2007
Springer
14 years 3 months ago
Improving the Search for Learning Objects with Keywords and Ontologies
We report on an ongoing project which aims at improving the eectiveness of retrieval and accessibility of learning object within learning management systems and learning object re...
Lothar Lemnitzer, Cristina Vertan, Alex Killing, K...
MCM
2011
13 years 2 days ago
Approximating the Riemann-Stieltjes integral by a trapezoidal quadrature rule with applications
Abstract. In this paper we provide sharp bounds for the error in approximating the Riemann-Stieltjes integral R b a f (t) du (t) by the trapezoidal rule f (a) + f (b) 2 [u (b) u (a...
S. S. Dragomir