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arXiv 1401.0486cs.CV
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一种用于在线阿拉伯笔迹识别的混合NN/HMM建模技术

A Hybrid NN/HMM Modeling Technique for Online Arabic Handwriting Recognition

University of Sfax(斯法克斯大学)

Najiba Tagougui, Houcine Boubaker, Monji Kherallah, Adel M. ALIMI

摘要:

在这项工作中,我们提出了一个混合NN/HMM模型的在线阿拉伯手写识别。该系统是基于隐马尔可夫模型(HMM)和多层感知器神经网络(MLPNNs)。通过检测曲线速度分布的极值点,基于Beta-Elliptical策略将输入信号分割成连续的笔划,称为段。一个神经网络训练段级上下文信息被用来提取类字符概率。该网络的输出由HALTH解码,以提供字符级识别。在对ADAB数据库的评估中,我们实现了96.4%的字符识别准确率,与最先进的在线阿拉伯语系统获得的字符识别准确率相比,这在统计学上非常重要。

英文摘要:

In this work we propose a hybrid NN/HMM model for online Arabic handwriting recognition. The proposed system is based on Hidden Markov Models (HMMs) and Multi Layer Perceptron Neural Networks (MLPNNs). The input signal is segmented to continuous strokes called segments based on the Beta-Elliptical strategy by inspecting the extremum points of the curvilinear velocity profile. A neural network trained with segment level contextual information is used to extract class character probabilities. The output of this network is decoded by HMMs to provide character level recognition. In evaluations on the ADAB database, we achieved 96.4% character recognition accuracy that is statistically significantly important in comparison with character recognition accuracies obtained from state-of-the-art online Arabic systems.8

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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