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SIGIR
2010
ACM
14 years 2 months ago
Metrics for assessing sets of subtopics
To evaluate the diversity of search results, test collections have been developed that identify multiple intents for each query. Intents are the different meanings or facets that...
Filip Radlinski, Martin Szummer, Nick Craswell
ICPR
2004
IEEE
14 years 11 months ago
Optimizing Nearest Neighbour in Random Subspaces using a Multi-Objective Genetic Algorithm
In this work, the authors have evaluated almost 20 millions ensembles of classifiers generated by several methods. Trying to optimize those ensembles based on the nearest neighbou...
Guillaume Tremblay, Robert Sabourin, Patrick Maupi...
CONEXT
2006
ACM
14 years 4 months ago
Investigating the user mobility in wireless mobile networks through real measurements
In this paper is proposed a real mobility characterization study for wireless devices. For this, we use mobility metrics and statistic analysis to evaluate the behavior of device ...
Carlos Alberto V. Campos, Luís Felipe M. de...
ISW
2004
Springer
14 years 3 months ago
Image Recognition CAPTCHAs
CAPTCHAs are tests that distinguish humans from software robots in an online environment [3, 14, 7]. We propose and implement three CAPTCHAs based on naming images, distinguishing ...
Monica Chew, J. D. Tygar
AIPR
2004
IEEE
14 years 1 months ago
Feasibility Study for the Development of a Motion Imagery Quality Metric
The motion imagery community would benefit from the availability of standard measures for assessing image interpretability. The National Imagery Interpretability Rating Scale (NII...
John M. Irvine, Charles Fenimore, David M. Cannon,...