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CLEF
2010
Springer
13 years 8 months ago
Validating Query Simulators: An Experiment Using Commercial Searches and Purchases
Abstract. We design and validate simulators for generating queries and relevance judgments for retrieval system evaluation. We develop a simulation framework that incorporates exis...
Bouke Huurnink, Katja Hofmann, Maarten de Rijke, M...
XSYM
2005
Springer
87views Database» more  XSYM 2005»
14 years 1 months ago
Relational Index Support for XPath Axes
In this paper, we designed efficient indexing structure for XML documents so that each basic XPath axis step is supported. The indexing structure is built on top of the B+ -tree wh...
Leo Yuen, Chung Keung Poon
MM
2005
ACM
139views Multimedia» more  MM 2005»
14 years 1 months ago
Multimodal affect recognition in learning environments
We propose a multi-sensor affect recognition system and evaluate it on the challenging task of classifying interest (or disinterest) in children trying to solve an educational pu...
Ashish Kapoor, Rosalind W. Picard
CVPR
2007
IEEE
13 years 11 months ago
Improving Part based Object Detection by Unsupervised, Online Boosting
Detection of objects of a given class is important for many applications. However it is difficult to learn a general detector with high detection rate as well as low false alarm r...
Bo Wu, Ram Nevatia
KDD
2009
ACM
142views Data Mining» more  KDD 2009»
14 years 8 months ago
Quantification and semi-supervised classification methods for handling changes in class distribution
In realistic settings the prevalence of a class may change after a classifier is induced and this will degrade the performance of the classifier. Further complicating this scenari...
Jack Chongjie Xue, Gary M. Weiss