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Biomedical subjects

J L Talmon

Publications and source records attributed to J L Talmon.

7 recordsLinked to original sources

The effect of noise and biases on the performance of machine learning algorithms.

This paper describes the results of experiments with a machine learning algorithm for the induction of classification trees. We mainly address the impact of noise on the resulting classification tree and on the classification results obtained with the derived tree. We use the domain of the biochemical assessment of thyroid diseases as an example. Some suggestions for quality assessment are outlined that should be available in tools that assist users in deriving classification trees in noisy domains.

Algorithms

A computer program for ECG classification according to the Minnesota code.

A program for the automated generation of Minnesota-codes from the standard 12-lead electrocardiogram (ECG) recorded at rest has been developed. The program has been written as a part of the Modular TNO ECG/VCG Processing System. Results of the program on two sets of ECG'S (279 predominantly normal recordings and 286 consecutive recordings from a Cardiological Department) are presented. These electrocardiograms were also coded by hand by different ECG technicians. An agreement of 83% between hand and computer coding was obtained. One-third of the disagreements (6% of the cases) is caused by small differences (less than 5%) in the measurements between technicians and computer.

Diagnosis, Computer-Assisted