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Producing a large annotated speech corpus for training ASR systems remains difficult for more than 95% of languages all over the world which are low-resourced, but collecting a relatively big unlabeled data set for such languages is more…

Computation and Language · Computer Science 2019-08-26 Kuan-Yu Chen , Che-Ping Tsai , Da-Rong Liu , Hung-Yi Lee , Lin-shan Lee

This work represents the experimental and development process of system facial expression recognition and facial stress analysis algorithms for an immersive digital learning platform. The system retrieves from users web camera and evaluates…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Fabio Cacciatori , Sergei Nikolaev , Dmitrii Grigorev , Anastasiia Archangelskaya

Arabic Handwritten Character Recognition (AHCR) has recently advanced significantly with deep Convolutional Neural Networks (ConvNets). However, many models in the literature are deep and computationally expensive in terms of parameters and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Mohsine El Khayati , Rachid Elouahbi , Abdelillah Semma

Hardware reliability is adversely affected by the downscaling of semiconductor devices and the scale-out of systems necessitated by modern applications. Apart from crashes, this unreliability often manifests as silent data corruptions…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-11-30 Vassilis Vassiliadis , Konstantinos Parasyris , Christos D. Antonopoulos , Spyros Lalis , Nikolaos Bellas

Many localized languages struggle to reap the benefits of recent advancements in character recognition systems due to the lack of substantial amount of labeled training data. This is due to the difficulty in generating large amounts of…

Computer Vision and Pattern Recognition · Computer Science 2020-08-10 Vinoj Jayasundara , Sandaru Jayasekara , Hirunima Jayasekara , Jathushan Rajasegaran , Suranga Seneviratne , Ranga Rodrigo

Automatic character generation is an appealing solution for new typeface design, especially for Chinese typefaces including over 3700 most commonly-used characters. This task has two main pain points: (i) handwritten characters are usually…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Chuan Wen , Jie Chang , Ya Zhang , Siheng Chen , Yanfeng Wang , Mei Han , Qi Tian

Recent end-to-end automatic speech recognition (ASR) systems often utilize a Transformer-based acoustic encoder that generates embedding at a high frame rate. However, this design is inefficient, particularly for long speech signals due to…

Computation and Language · Computer Science 2023-06-29 Yuang Li , Yu Wu , Jinyu Li , Shujie Liu

Offline handwriting recognition (HWR) has improved significantly with the advent of deep learning architectures in recent years. Nevertheless, it remains a challenging problem and practical applications often rely on post-processing…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Andrey Totev , Tomas Ward

On-line handwritten character segmentation is often associated with handwriting recognition and even though recognition models include mechanisms to locate relevant positions during the recognition process, it is typically insufficient to…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Michael Jungo , Beat Wolf , Andrii Maksai , Claudiu Musat , Andreas Fischer

Recurrent neural networks (RNNs) have achieved great success in language modeling. However, since the RNNs have fixed size of memory, their memory cannot store all the information about the words it have seen before in the sentence, and…

Computation and Language · Computer Science 2016-11-29 Da-Rong Liu , Shun-Po Chuang , Hung-yi Lee

Recent advances in text recognition led to a paradigm shift for page-level recognition, from multi-step segmentation-based approaches to end-to-end attention-based ones. However, the na\"ive character-level autoregressive decoding process…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Denis Coquenet

In this paper, a new method for offline handwritten signature retrieval is based on curvelet transform is proposed. Many applications in image processing require similarity retrieval of an image from a large collection of images. In such…

Computer Vision and Pattern Recognition · Computer Science 2011-04-12 M. S. Shirdhonkar , Manesh B. Kokare

Offline Handwritten Mathematical Expression Recognition (HMER) is a major area in the field of mathematical expression recognition. Offline HMER is often viewed as a much harder problem as compared to online HMER due to a lack of temporal…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Ujjwal Thakur , Anuj Sharma

Sign Language Recognition (SLR) plays a crucial role in bridging the communication gap between the hearing-impaired community and society. This paper introduces SLRNet, a real-time webcam-based ASL recognition system using MediaPipe…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Sharvari Kamble

Transformers achieve strong language modeling accuracy, yet their position-wise feed-forward networks (FFNs) are dense, globally shared, and typically updated end to end. These properties create two practical tensions. First, dense FFNs…

Machine Learning · Computer Science 2026-02-10 Shashank

Always-on spoken language interfaces, e.g. personal digital assistants, rely on a wake word to start processing spoken input. We present novel methods to train a hybrid DNN/HMM wake word detection system from partially labeled training…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-30 Yiming Wang , Hang Lv , Daniel Povey , Lei Xie , Sanjeev Khudanpur

The demand for high speed data transmission has increased rapidly, leading to advanced optical communication techniques. In the past few years, multiple equalizers based on neural network (NN) have been proposed to recover signal from…

Signal Processing · Electrical Eng. & Systems 2020-08-26 Qingyi Zhou , Fan Zhang , Chuanchuan Yang

In this paper, we propose a multi-layer artificial neural network (ANN) that is trained with the Levenberg-Marquardt algorithm for use in signal detection over multiple-input multiple-output orthogonal frequency-division multiplexing…

Signal Processing · Electrical Eng. & Systems 2020-02-03 Shabnam Rezaei , Sofiene Affes

Modern Hopfield Neural Networks (HNNs), also known as Dense Associative Memories (DAMs), enhance the performance of simple recurrent neural networks by leveraging the nonlinearities in their energy functions. They have broad applications in…

Optics · Physics 2026-01-12 Khalid Musa , Santosh Kumar , Michael Katidis , Yu-Ping Huang

In this paper, we introduce a novel technique to recover the pen trajectory of offline characters which is a crucial step for handwritten character recognition. Generally, online acquisition approach has more advantage than its offline…

Computer Vision and Pattern Recognition · Computer Science 2018-06-05 Ayan Kumar Bhunia , Abir Bhowmick , Ankan Kumar Bhunia , Aishik Konwer , Prithaj Banerjee , Partha Pratim Roy , Umapada Pal