Predicting gene function using few positive examples and unlabeled ones

Learning with Positive and Unlabeled Examples Using Weighted Logistic Regression

The problem of learning with positive and unlabeled examples arises frequently in retrieval applications. We transform the problem into a problem of learning with noise by labeling all unlabeled examples as negative and use a linear function to learn from the noisy examples. To learn a linear function with noise, we perform logistic regression after weighting the examples to handle noise rates ...

Building Text Classifiers Using Positive and Unlabeled Examples

This paper studies the problem of building text classifiers using positive and unlabeled examples. The key feature of this problem is that there is no negative example for learning. Recently, a few techniques for solving this problem were proposed in the literature. These techniques are based on the same idea, which builds a classifier in two steps. Each existing technique uses a different meth...

Text Classification from Positive and Unlabeled Examples

Positive and Unlabeled Examples Help Learning

In many learning problems, labeled examples are rare or expensive while numerous unlabeled and positive examples are available. However, most learning algorithms only use labeled examples. Thus we address the problem of learning with the help of positive and unlabeled data given a small number of labeled examples. We present both theoretical and empirical arguments showing that learning algorit...

Learning from Positive and Unlabeled Examples

In many machine learning settings, labeled examples are difficult to collect while unlabeled data are abundant. Also, for some binary classification problems, positive examples which are elements of the target concept are available. Can these additional data be used to improve accuracy of supervised learning algorithms? We investigate in this paper the design of learning algorithms from positiv...