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The use of artificial intelligence technology in education is growing rapidly, with increasing attention being paid to handwritten mathematical expression recognition (HMER) by researchers. However, many existing methods for HMER may fail…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Ziqi Ye

Handwritten Mathematical Expression Recognition (HMER) has extensive applications in automated grading and office automation. However, existing sequence-based decoding methods, which directly predict $\LaTeX$ sequences, struggle to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Jianhua Zhu , Wenqi Zhao , Yu Li , Xingjian Hu , Liangcai Gao

The advent of recurrent neural networks for handwriting recognition marked an important milestone reaching impressive recognition accuracies despite the great variability that we observe across different writing styles. Sequential…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Lei Kang , Pau Riba , Marçal Rusiñol , Alicia Fornés , Mauricio Villegas

The use of neural networks and deep learning techniques in image processing has significantly advanced the field, enabling highly accurate recognition results. However, achieving high recognition rates often necessitates complex network…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Md Laraib Salam , Akash S Balsaraf , Gaurav Gupta , Ashish Rajeshwar Kulkarni

This article proposes a convenient tool for decoding the output of neural networks trained by Connectionist Temporal Classification (CTC) for handwritten text recognition. We use regular expressions to describe the complex structures…

Neural and Evolutionary Computing · Computer Science 2016-03-31 Tobias Strauß , Gundram Leifert , Tobias Grüning , Roger Labahn

Due to the omnipresence of mobile devices, online handwritten scripts have become the most important feeding input to smartphones and tablet devices. To increase online handwriting recognition performance, deeper neural networks have…

Computer Vision and Pattern Recognition · Computer Science 2019-08-05 Hanen Akouaydi , Sourour Njah , Wael Ouarda , Anis Samet , Thameur Dhieb , Mourad Zaied , Adel M. Alimi

Large foundation models have achieved significant performance gains through scalable training on massive datasets. However, the field of \textbf{H}andwritten \textbf{M}athematical \textbf{E}xpression \textbf{R}ecognition (HMER) has been…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Haoyang Li , Jiaqing Li , Jialun Cao , Zongyuan Yang , Yongping Xiong

State-of-the-art methods for handwriting recognition are based on Long Short Term Memory (LSTM) recurrent neural networks (RNN), which now provides very impressive character recognition performance. The character recognition is generally…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Bruno Stuner , Clément Chatelain , Thierry Paquet

We tackle the problem of neural machine translation of mathematical formulae between ambiguous presentation languages and unambiguous content languages. Compared to neural machine translation on natural language, mathematical formulae have…

Computation and Language · Computer Science 2023-05-29 Felix Petersen , Moritz Schubotz , Andre Greiner-Petter , Bela Gipp

Handwritten Mathematical Expression Recognition (HMER) requires reasoning over diverse symbols and 2D structural layouts, yet autoregressive models struggle with exposure bias and syntactic inconsistency. We present a discrete diffusion…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Takaya Kawakatsu , Ryo Ishiyama

Handwritten Mathematical Expression Recognition (HMER) is a challenging task with many educational applications. Recent methods for HMER have been developed for complex mathematical expressions in standard horizontal format. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Daniel Rosa , Filipe R. Cordeiro , Ruan Carvalho , Everton Souza , Sergio Chevtchenko , Luiz Rodrigues , Marcelo Marinho , Thales Vieira , Valmir Macario

Printed mathematical expression recognition (MER) models are usually trained and tested using LaTeX-generated mathematical expressions (MEs) as input and the LaTeX source code as ground truth. As the same ME can be generated by various…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Felix M. Schmitt-Koopmann , Elaine M. Huang , Hans-Peter Hutter , Thilo Stadelmann , Alireza Darvishy

Recognizing handwritten mathematics is a challenging classification problem, requiring simultaneous identification of all the symbols comprising an input as well as the complex two-dimensional relationships between symbols and…

Artificial Intelligence · Computer Science 2014-09-19 Scott MacLean , George Labahn

The Transformer architecture is shown to provide a powerful framework as an end-to-end model for building expression trees from online handwritten gestures corresponding to glyph strokes. In particular, the attention mechanism was…

Computation and Language · Computer Science 2022-11-07 Mirco Ramo , Guénolé C. M. Silvestre

This paper shows how Long Short-term Memory recurrent neural networks can be used to generate complex sequences with long-range structure, simply by predicting one data point at a time. The approach is demonstrated for text (where the data…

Neural and Evolutionary Computing · Computer Science 2014-06-06 Alex Graves

Finding the name of an unknown symbol is often hard, but writing the symbol is easy. This bachelor's thesis presents multiple systems that use the pen trajectory to classify handwritten symbols. Five preprocessing steps, one data…

Computer Vision and Pattern Recognition · Computer Science 2016-02-19 Martin Thoma

Handwritten text recognition is challenging because of the virtually infinite ways a human can write the same message. Our fully convolutional handwriting model takes in a handwriting sample of unknown length and outputs an arbitrary stream…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Felipe Petroski Such , Dheeraj Peri , Frank Brockler , Paul Hutkowski , Raymond Ptucha

Handwritten mathematical expression recognition (HMER) is challenging in image-to-text tasks due to the complex layouts of mathematical expressions and suffers from problems including over-parsing and under-parsing. To solve these, previous…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Yutian Liu , Wenjun Ke , Jianguo Wei

Deep neural networks have achieved remarkable results across many language processing tasks, however these methods are highly sensitive to noise and adversarial attacks. We present a regularization based method for limiting network…

Computation and Language · Computer Science 2016-09-21 Yitong Li , Trevor Cohn , Timothy Baldwin

Handwritten Text Recognition (HTR) has become an essential field within pattern recognition and machine learning, with applications spanning historical document preservation to modern data entry and accessibility solutions. The complexity…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Carlos Garrido-Munoz , Antonio Rios-Vila , Jorge Calvo-Zaragoza