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» Competitive Collaborative Learning
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RECSYS
2009
ACM
15 years 4 months ago
Recommending new movies: even a few ratings are more valuable than metadata
In the Netflix Prize competition many new collaborative filtering (CF) approaches emerged, which are excellent in optimizing the RMSE of the predictions. Matrix factorization (M...
István Pilászy, Domonkos Tikk
EDM
2009
124views Data Mining» more  EDM 2009»
14 years 7 months ago
Detecting and Understanding the Impact of Cognitive and Interpersonal Conflict in Computer Supported Collaborative Learning Envi
This paper presents a model which can automatically detect a variety of student speech acts as students collaborate within a computer supported collaborative learning environment. ...
David Prata, Ryan Baker, Evandro Costa, Carolyn Pe...
SODA
2003
ACM
132views Algorithms» more  SODA 2003»
14 years 11 months ago
Online learning in online auctions
We consider the problem of revenue maximization in online auctions, that is, auctions in which bids are received and dealt with one-by-one. In this note, we demonstrate that resul...
Avrim Blum, Vijay Kumar, Atri Rudra, Felix Wu
BCSHCI
2009
14 years 11 months ago
Paper-based concept map: the effects of tabletop on an expressive collaborative learning task
Augmented tabletops have recently attracted considerable attention in the literature. However, little has been known about the effects that these interfaces have on learning tasks...
Son Do-Lenh, Frédéric Kaplan, Pierre...
ETS
2000
IEEE
138views Hardware» more  ETS 2000»
14 years 9 months ago
An Agent Infrastructure to set Collaborative Environments
Collaborative learning supported through computers seems to be very promising, since advances in computational technology enable the widespread use of tools such as bulletin board...
Carlos José M. Olguín, Armando Luiz ...