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WWW
2008
ACM
16 years 2 months ago
Learning to classify short and sparse text & web with hidden topics from large-scale data collections
This paper presents a general framework for building classifiers that deal with short and sparse text & Web segments by making the most of hidden topics discovered from larges...
Xuan Hieu Phan, Minh Le Nguyen, Susumu Horiguchi
AAAI
2006
15 years 3 months ago
Salience in Orientation-Filter Response Measured as Suspicious Coincidence in Natural Images
Visual cortex neurons have receptive fields resembling oriented bandpass filters, and their response distributions on natural images are non-Gaussian. Inspired by this, we previou...
Subramonia Sarma, Yoonsuck Choe
CHI
2004
ACM
16 years 2 months ago
Off-task behavior in the cognitive tutor classroom: when students "game the system"
We investigate the prevalence and learning impact of different types of off-task behavior in classrooms where students are using intelligent tutoring software. We find that within...
Ryan Shaun Baker, Albert T. Corbett, Kenneth R. Ko...
ASSETS
2007
ACM
15 years 5 months ago
Variable frame rate for low power mobile sign language communication
The MobileASL project aims to increase accessibility by enabling Deaf people to communicate over video cell phones in their native language, American Sign Language (ASL). Real-tim...
Neva Cherniavsky, Anna Cavender, Richard E. Ladner...
SIGIR
2006
ACM
15 years 7 months ago
Mining dependency relations for query expansion in passage retrieval
Classical query expansion techniques such as the local context analysis (LCA) make use of term co-occurrence statistics to incorporate additional contextual terms for enhancing pa...
Renxu Sun, Chai-Huat Ong, Tat-Seng Chua