Title
An SVM confidence-based approach to medical image annotation
Abstract
This paper presents the algorithms and results of the "idiap" team participation to the ImageCLEFmed annotation task in 2008. On the basis of our successful experience in 2007 we decided to integrate two different local structural and textural descriptors. Cues are combined through concatenation of feature vectors and through the Multi-Cue Kernel. The challenge this year was to annotate images coming mainly from classes with only few training examples. We tackled the problem on two fronts: (1) we introduced a further integration strategy using SVM as an opinion maker; (2) we enriched the poorly populated classes adding virtual examples. We submitted several runs considering different combinations of the proposed techniques. The run jointly using the feature concatenation, the confidence-based opinion fusion and the virtual examples ranked first among all submissions.
Year
DOI
Venue
2008
10.1007/978-3-642-04447-2_88
CLEF
Keywords
Field
DocType
imageclefmed annotation task,feature concatenation,medical image annotation,svm confidence-based approach,populated class,multi-cue kernel,feature vector,virtual example,integration strategy,confidence-based opinion fusion,opinion maker,different combination
Computer science,Local binary patterns,Image retrieval,Concatenation,Artificial intelligence,Natural language processing,Feature vector,Automatic image annotation,Annotation,Ranking,Information retrieval,Support vector machine,Machine learning
Conference
Volume
ISSN
ISBN
5706
0302-9743
3-642-04446-8
Citations 
PageRank 
References 
7
0.63
13
Authors
3
Name
Order
Citations
PageRank
Tatiana Tommasi150229.31
Francesco Orabona288151.44
Barbara Caputo33298201.26