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ACL
2010
13 years 8 months ago
Sentiment Learning on Product Reviews via Sentiment Ontology Tree
Existing works on sentiment analysis on product reviews suffer from the following limitations: (1) The knowledge of hierarchical relationships of products attributes is not fully ...
Wei Wei, Jon Atle Gulla
ICASSP
2011
IEEE
13 years 1 months ago
Covariate-dependent dictionary learning and sparse coding
A dependent hierarchical beta process (dHBP) is developed as a prior for data that may be represented in terms of a sparse set of latent features (dictionary elements), with covar...
Mingyuan Zhou, Hongxia Yang, Guillermo Sapiro, Dav...
CSCW
2006
ACM
14 years 1 months ago
Strangers and friends: collaborative play in world of warcraft
We analyze collaborative play in an online video game, World of Warcraft, the most popular personal computer game in the United States, with significant markets in Asia and Europe...
Bonnie A. Nardi, Justin Harris
COGSCI
2002
71views more  COGSCI 2002»
13 years 10 months ago
Spanning seven orders of magnitude: a challenge for cognitive modeling
Much of cognitive psychology focuses on effects measured in tens of milliseconds while significant educational outcomes take tens of hours to achieve. The task of bridging this ga...
John R. Anderson
HRI
2009
ACM
14 years 4 months ago
Learning about objects with human teachers
A general learning task for a robot in a new environment is to learn about objects and what actions/effects they afford. To approach this, we look at ways that a human partner c...
Andrea Lockerd Thomaz, Maya Cakmak