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All Journal Journal of Dinda : Data Science, Information Technology, and Data Analytics
Imada Ramadhanti
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Computer Science & IT

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Minimalist DCT-based Depthwise Separable Convolutional Neural Network Approach for Tangut Script Agi Prasetiadi; Julian Saputra; Imada Ramadhanti; Asti Dwi Sripamuji; Risa Riski Amalia
Indonesian Journal of Data Science, IoT, Machine Learning and Informatics Vol 3 No 2 (2023): August
Publisher : Research Group of Data Engineering, Faculty of Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/dinda.v3i2.1106

Abstract

The Tangut script, a lesser-explored dead script comprising numerous characters, has received limited attention in deep learning research, particularly in the field of optical character recognition (OCR). Existing OCR studies primarily focus on widely-used characters like Chinese characters and employ deep convolutional neural networks (CNNs) or combinations with recurrent neural networks (RNNs) to enhance accuracy in character recognition. In contrast, this study takes a counterintuitive approach to develop an OCR model specifically for the Tangut script. We utilize shorter layers with slimmer filters using a depthwise separable convolutional neural network (DSCNN) architecture. Furthermore, we preprocess the dataset using a frequency-based transformation, namely the Discrete Cosine Transform (DCT). The results demonstrate successful training of the model, showcasing faster convergence and higher accuracy compared to traditional deep neural networks commonly used in OCR applications.
Co-Authors Agi Prasetiadi Asti Dwi Sripamuji Julian Saputra Risa Riski Amalia