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ACL
2010
14 years 7 months ago
A Study of Information Retrieval Weighting Schemes for Sentiment Analysis
Most sentiment analysis approaches use as baseline a support vector machines (SVM) classifier with binary unigram weights. In this paper, we explore whether more sophisticated fea...
Georgios Paltoglou, Mike Thelwall
KDD
2009
ACM
167views Data Mining» more  KDD 2009»
15 years 10 months ago
Seven pitfalls to avoid when running controlled experiments on the web
Controlled experiments, also called randomized experiments and A/B tests, have had a profound influence on multiple fields, including medicine, agriculture, manufacturing, and adv...
Thomas Crook, Brian Frasca, Ron Kohavi, Roger Long...
JCDL
2006
ACM
71views Education» more  JCDL 2006»
15 years 3 months ago
Using controlled query generation to evaluate blind relevance feedback algorithms
Currently in document retrieval there are many algorithms each with different strengths and weakness. There is some difficulty, however, in evaluating the impact of the test quer...
Chris Jordan, Carolyn R. Watters, Qigang Gao
ICPR
2010
IEEE
15 years 4 months ago
Non-Rigid Image Registration for Historical Manuscript Restoration
This paper presents a non-rigid registration method for the restoration of double-sided historical manuscripts. Firstly, the gradient direction maps of the two images of a manuscr...
Jie Wang, Chew-Lim Tan
ISSTA
2009
ACM
15 years 4 months ago
HAMPI: a solver for string constraints
Many automatic testing, analysis, and verification techniques for programs can be effectively reduced to a constraint-generation phase followed by a constraint-solving phase. Th...
Adam Kiezun, Vijay Ganesh, Philip J. Guo, Pieter H...