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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Cardoso, J.S. Domingues, I. |
| Copyright Year | 2011 |
| Abstract | In the predictive modeling tasks, a clear distinction is often made between learning problems that are supervised or unsupervised, the first involving only labeled data (training patterns with known category labels) while the latter involving only unlabeled data. There is a growing interest in a hybrid setting, called semi-supervised learning, in semi-supervised classification, the labels of only a small portion of the training data set are available. The unlabeled data, instead of being discarded, are also used in the learning process. Motivated by a breast cancer application, in this work we address a new learning task, in-between classification and semi-supervised classification. Each example is described using two different feature sets, not necessarily both observed for a given example. If a single view is observed, then the class is only due to that feature set, if both views are present the observed class label is the maximum of the two values corresponding to the individual views. We propose new learning methodologies adapted to this learning paradigm and experimentally compare them with baseline methods from the conventional supervised and unsupervised settings. The experimental results verify the usefulness of the proposed approaches. |
| Starting Page | 13 |
| Ending Page | 18 |
| File Size | 305905 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781457721342 |
| DOI | 10.1109/ICMLA.2011.93 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-12-18 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Training Decision support systems Support vector machines Computational modeling Semi-supervised learning Predictive models Ordinal learning Breast cancer Data models Bi-RADS Joints |
| Content Type | Text |
| Resource Type | Article |
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