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Songsong Feng

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Proceedings Article | 2 February 2023 Paper

A novel design of learnable pooling algorithm

Songsong Feng, Binjun Wang

Proceedings Volume 12462, 1246230 (2023) https://doi.org/10.1117/12.2660788

KEYWORDS: Image classification, Convolutional neural networks, Performance modeling, Visual process modeling, Process modeling, Image segmentation, Image processing, Evolutionary algorithms, Feature extraction

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Pooling is an important part of modern convolutional neural networks, which can expand the perception field, reduce the parameter matrix, and avoid overfitting. Currently used maximum pooling, average pooling and various subsequent improved pooling algorithms cannot take into account the contour and background information of the feature map at the same time. In addition, the performance of different pooling algorithms varies greatly on different models and datasets. In this paper, we propose a learnable pooling algorithm. The introduction of learnable parameters allows the pooling layer to adaptively optimize the selection of key feature information that is beneficial to improve model performance during model training. It is experimentally verified that the pooling algorithm has superior performance over the existing maximum pooling and average pooling on several classical models and public datasets for image classification and text classification. The pooling algorithm with the introduction of learnable parameters can better prevent overfitting, steadily improve the accuracy of the model, and is highly generalizable.

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