72 search results - page 1 / 15 » A Study of Information Retrieval Weighting Schemes for Senti... |
ACL
2010
13 years 2 months ago
2010
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...
ACL
2009
13 years 2 months ago
2009
This paper describes an approach to utilizing term weights for sentiment analysis tasks and shows how various term weighting schemes improve the performance of sentiment analysis ...
SIGIR
2009
ACM
13 years 11 months ago
2009
ACM
Evaluation of sentiment analysis, like large-scale IR evaluation, relies on the accuracy of human assessors to create judgments. Subjectivity in judgments is a problem for relevan...
CIKM
2007
Springer
13 years 11 months ago
2007
Springer
In this work, we attempt to tackle domain-transfer problem by combining old-domain labeled examples with new-domain unlabeled ones. The basic idea is to use old-domain-trained cla...
ICML
2005
IEEE
14 years 5 months ago
2005
IEEE
How to assign appropriate weights to terms is one of the critical issues in information retrieval. Many term weighting schemes are unsupervised. They are either based on the empir...