Title
Sparse representation for outliers suppression in semi-supervised image annotation
Abstract
Recently, generic object recognition (automatic image annotation) that achieves human-like vision using a computer has being looked to for use in robot vision, automatic categorization of images, and retrieval of images. For the annotation, semi-supervised learning, which incorporates a large amount of unsupervised training data (unlabeled data) along with a small amount of supervised data (labeled data), is expected to be an effective tool as it reduces the burden of manual annotation. However, some unlabeled data in semi-supervised models contains outliers that negatively affect the parameter estimation on the training stage. Such outliers often cause the over-fitting problem especially when a small amount of training data is used. In this paper, we propose a practical method to prevent the over-fitting in semi-supervised learning, suppressing existing outliers by sparse representation. In our experiments we got 4 points improvement comparing conventional semi-supervised methods, SemiNB and TSVM.
Year
DOI
Venue
2013
10.1109/ICASSP.2013.6638020
Acoustics, Speech and Signal Processing
Keywords
Field
DocType
learning (artificial intelligence),object recognition,generic object recognition,image automatic categorization,image retrieval,labeled data,outliers suppression,parameter estimation,robot vision,semisupervised image annotation,sparse representation,supervised data,unlabeled data,unsupervised training data,Object recognition,automatic anotation,semi-supervised learning,sparse representation
Categorization,Automatic image annotation,Semi-supervised learning,Annotation,Pattern recognition,Computer science,Sparse approximation,Image retrieval,Unsupervised learning,Artificial intelligence,Machine learning,Cognitive neuroscience of visual object recognition
Conference
ISSN
Citations 
PageRank 
1520-6149
0
0.34
References 
Authors
4
4
Name
Order
Citations
PageRank
Toru Nakashika18113.60
Takeshi Okumura200.68
Tetsuya Takiguchi3858.77
Yasuo Ariki451988.94