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» Validity Invariants and Effects
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ICPR
2008
IEEE
14 years 2 months ago
Dunn's cluster validity index as a contrast measure of VAT images
This paper addresses the relationship between the Visual Assessment of cluster Tendency (VAT) algorithm and Dunn’s cluster validity index. We present an analytical comparison in...
Timothy C. Havens, James C. Bezdek, James M. Kelle...
NORDICHI
2006
ACM
14 years 1 months ago
Systematic evaluation of e-learning systems: an experimental validation
The evaluation of e-learning applications deserves special attention and evaluators need effective methodologies and appropriate guidelines to perform their task. We have proposed...
Carmelo Ardito, Maria Francesca Costabile, Antonel...
CEC
2007
IEEE
13 years 11 months ago
Development and validation of different hybridization strategies between GA and PSO
In this paper a new class of hybridization strategies between GA and PSO is presented and validated. The Genetical Swarm Optimization (GSO) approach is presented here with respect ...
A. Gandelli, F. Grimaccia, Marco Mussetta, Paola P...
ICIP
2009
IEEE
14 years 8 months ago
On Clinical Validation Of Fly-over Visualization Technique For Virtual Colonoscopy
In this paper, we aim to provide the further evaluation on the recently proposed visualization technique known as Virtual Fly-Over for virtual colonoscopy by using clinical CT col...
HICSS
2006
IEEE
132views Biometrics» more  HICSS 2006»
14 years 1 months ago
An Integrated Framework for IT Governance and the Development and Validation of an Assessment Instrument
Our paper presents a new IT governance framework and introduces an assessment tool designed to measure its effectiveness. The framework builds on the integration between the struc...
Tomi Dahlberg, Hannu Kivijärvi