Wei Jiang, Eric Zavesky, Shih-Fu Chang, Alex Loui. Cross-Domain Learning Methods for High-Level Visual Concept Classification. In IEEE International Conference on Image Processing, San Diego, California, U.S.A, October 2008.
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Exploding amounts of multimedia data increasingly require automatic indexing and classification, e.g. training classifiers to produce high-level features, or semantic concepts, chosen to represent image content, like car, person, etc. When changing the applied domain (i.e. from news domain to consumer home videos), the classifiers trained in one domain often perform poorly in the other domain due to changes in feature distributions. Additionally, classifiers trained on the new domain alone may suffer from too few positive training samples. Appropriately adapting data/models from an old domain to help classify data in a new domain is an important issue. In this work, we develop a new cross-domain SVM (CDSVM) algorithm for adapting previously learned support vectors from one domain to help classification in another domain. Better precision is obtained with almost no additional computational cost. Also, we give a comprehensive summary and comparative study of the stateof- the-art SVM-based cross-domain learning methods. Evaluation over the latest large-scale TRECVID benchmark data set shows that our CDSVM method can improve mean average precision over 36 concepts by 7.5%. For further performance gain, we also propose an intuitive selection criterion to determine which cross-domain learning method to use for each concept
Wei Jiang 
Eric Zavesky
Shih-Fu Chang
@InProceedings{crossdomain_icip2008,
Author = {Jiang, Wei and Zavesky, Eric and Chang, Shih-Fu and Loui, Alex},
Title = {{Cross-Domain Learning Methods for High-Level Visual Concept Classification}},
BookTitle = {IEEE International Conference on Image Processing},
Address = {San Diego, California, U.S.A},
Month = {October},
Year = {2008}
}
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