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AIED
2011
Springer
14 years 8 months ago
Workflow-Based Assessment of Student Online Activities with Topic and Dialogue Role Classification
The Pedagogical Assessment Workflow System (PAWS) is a new workflow-based pedagogical assessment framework that enables the efficient and robust integration of diverse datasets for...
Jun Ma, Jeon-Hyung Kang, Erin Shaw, Jihie Kim
ECIR
2011
Springer
14 years 8 months ago
Fractional Similarity: Cross-Lingual Feature Selection for Search
Abstract. Training data as well as supplementary data such as usagebased click behavior may abound in one search market (i.e., a particular region, domain, or language) and be much...
Jagadeesh Jagarlamudi, Paul N. Bennett
CICLING
2012
Springer
14 years 20 days ago
Building Subjectivity Lexicon(s) from Scratch for Essay Data
While there are a number of subjectivity lexicons available for research purposes, none can be used commercially. We describe the process of constructing subjectivity lexicon(s) fo...
Beata Beigman Klebanov, Jill Burstein, Nitin Madna...
JMLR
2012
13 years 7 months ago
Wilks' phenomenon and penalized likelihood-ratio test for nonparametric curve registration
The problem of curve registration appears in many different areas of applications ranging from neuroscience to road traffic modeling. In the present work, we propose a nonparamet...
Arnak S. Dalalyan, Olivier Collier
JMLR
2012
13 years 7 months ago
Minimax Rates of Estimation for Sparse PCA in High Dimensions
We study sparse principal components analysis in the high-dimensional setting, where p (the number of variables) can be much larger than n (the number of observations). We prove o...
Vincent Q. Vu, Jing Lei