# An Active Learning Approach for Training the Probabilistic RBF Classification Network

### Constantinos Constantinopoulos, Aristidis Likas

#### Abstract

Active learning for classification constitutes a type of learning problem where a classifier is gradually built by iteratively asking for the labels of data points. The method involves a data selection mechanism that queries for the labels of those data points that considers to be mostly beneficial for improving the performance of the current classifier. We present an active learning methodology for training the probabilistic RBF (PRBF) network which is a special case of the RBF network, and constitutes a generalization of the Gaussian mixture model. The method employs a suitable criterion to select an unlabeled observation and query its label. The proposed criterion selects points that lie near the decision boundary. The learning performance of the algorithm is tested with experiments on several data sets.

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#### Paper Citation

#### in Harvard Style

Constantinopoulos C. and Likas A. (2006). **An Active Learning Approach for Training the Probabilistic RBF Classification Network** . In *Proceedings of the 2nd International Workshop on Artificial Neural Networks and Intelligent Information Processing - Volume 1: ANNIIP, (ICINCO 2006)* ISBN 978-972-8865-68-9, pages 3-12. DOI: 10.5220/0001222800030012

#### in Bibtex Style

@conference{anniip06,

author={Constantinos Constantinopoulos and Aristidis Likas},

title={An Active Learning Approach for Training the Probabilistic RBF Classification Network},

booktitle={Proceedings of the 2nd International Workshop on Artificial Neural Networks and Intelligent Information Processing - Volume 1: ANNIIP, (ICINCO 2006)},

year={2006},

pages={3-12},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0001222800030012},

isbn={978-972-8865-68-9},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 2nd International Workshop on Artificial Neural Networks and Intelligent Information Processing - Volume 1: ANNIIP, (ICINCO 2006)

TI - An Active Learning Approach for Training the Probabilistic RBF Classification Network

SN - 978-972-8865-68-9

AU - Constantinopoulos C.

AU - Likas A.

PY - 2006

SP - 3

EP - 12

DO - 10.5220/0001222800030012