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- W1512041503 abstract "In the development of a computer-aided detection (CAD) system a large database containing training samples is of major importance. However, as obtaining training samples may be costly, it is useful to evaluate the effect of training sample size on performance of mass detection and classification. In this paper we investigate the effect of the number of masses as well as the number of normals in the training database. In particular we are interested in the performance of the CAD system operating at high specificity. We use a combination of databases comprising over 5000 cases. Each mammogram is classified multiple times, using neural networks trained with a different number of training samples. To measure performance free-response operator characteristic (FROC)-curves are computed. The mean sensitivity in the interval between 0.05 and 0.5 false positive (FP) marks/image is taken as a performance measure. It was found that performance steadily increases with adding masses to the training database. Even with 555 mass cases a plateau was not yet reached. For normal cases, however, we found that a large number of normals was not needed. The maximal performance was reached with around 700 cases. These results show that optimal training requires a lot of malignant cases, whereas the influence of the number of normal cases is less." @default.
- W1512041503 created "2016-06-24" @default.
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- W1512041503 date "2008-07-26" @default.
- W1512041503 modified "2023-09-26" @default.
- W1512041503 title "The Effect of Training Sample Size on Performance of Mass Detection" @default.
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- W1512041503 doi "https://doi.org/10.1007/978-3-540-70538-3_48" @default.
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