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IFIP12
2008
15 years 5 months ago
A Study with Class Imbalance and Random Sampling for a Decision Tree Learning System
Sampling methods are a direct approach to tackle the problem of class imbalance. These methods sample a data set in order to alter the class distributions. Usually these methods ar...
Ronaldo C. Prati, Gustavo E. A. P. A. Batista, Mar...
LANC
2009
ACM
158views Education» more  LANC 2009»
15 years 11 months ago
Enhancements to the opinion model for video-telephony applications
In this paper, we show how the proposed model in ITU-T Recommendation G.1070 “Opinion model for video-telephony applications” cannot model properly the perceptual video qualit...
Jose Joskowicz, José Carlos López-Ar...
BPM
2007
Springer
211views Business» more  BPM 2007»
15 years 8 months ago
Towards a Reference Process Model for Event Management
Events are becoming more and more important for companies as an instrument of marketing communication. Event management is an interdisciplinary task field, addressed in the most di...
Oliver Thomas, Bettina Hermes, Peter Loos
IDEAS
2006
IEEE
109views Database» more  IDEAS 2006»
15 years 10 months ago
Collaborative Filtering Process in a Whole New Light
Collaborative Filtering (CF) Systems are gaining widespread acceptance in recommender systems and ecommerce applications. These systems combine information retrieval and data mini...
Panagiotis Symeonidis, Alexandros Nanopoulos, Apos...
RECSYS
2009
ACM
15 years 11 months ago
Measuring predictive capability in collaborative filtering
This paper presents a new memory-based approach to Collaborative Filtering where the neighbors of the active user will be selected taking into account their predictive capability....
Luis M. de Campos, Juan M. Fernández-Luna, ...