ICFHR2016 CROHME: Competition on Recognition of Online Handwritten Mathematical Expressions

2016 15th International Conference on Frontiers in Handwriting Recognition (ICFHR) Pub Date : 2016-10-23 DOI:10.1109/ICFHR.2016.0116

H. Mouchère, C. Viard-Gaudin, R. Zanibbi, Utpal Garain

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引用次数: 79

Abstract

This paper presents an overview of the 5th Competition on Recognition of Online Handwritten Mathematical Expressions (CROHME). As in previous years, the main task is formula recognition from handwritten strokes (Task 1). Additional tasks include classification of isolated symbols (Task 2a), classification of isolated valid and invalid symbols (Task 2b), a new task on parsing formula structure from valid handwritten symbols (Task 3), and parsing expressions with matrices (Task 4, experimental). In total, eleven (11) research labs registered for the competition, with six (6) teams submitting results. Innovations for this CROHME included providing a corpus of formulae from Wikipedia to train language models, and an online system for result submission. The highest recognition rates were obtained by MyScript corporation (Task 1. 67.65%, 2a. 92.81%, 2b. 86.77%, 3. 84.38%, and 4. 68.40%). Using only provided training data, the highest recognition rates were obtained by WIRIS corporation (Task 1. 49.61%, Task 3. 78.80%, Task 4. 56.40%), the Tokyo University of Agriculture and Technology (Task 2a. 92.28%), and RIT (Task 2b. 83.34%). The competition results suggest that recognition of handwritten formulae remains a difficult structural pattern recognition task.

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ICFHR2016 CROHME:在线手写数学表达式识别竞赛

本文介绍了第五届在线手写数学表达式识别大赛(CROHME)的概况。与往年一样，主要任务是从手写笔画中识别公式(任务1)。附加任务包括孤立符号的分类(任务2a)，孤立有效和无效符号的分类(任务2b)，从有效手写符号中解析公式结构的新任务(任务3)，以及用矩阵解析表达式(任务4，实验)。总共有十一(11)个研究实验室注册参加比赛，六(6)个团队提交了结果。该CROHME的创新之处包括提供来自维基百科的公式语料库来训练语言模型，以及一个在线结果提交系统。MyScript公司(Task 1)获得了最高的识别率。67.65%, 2。92.81%, 2 b。86.77%, 3。84.38%;68.40%)。仅使用提供的训练数据，wiiris公司(Task 1)的识别率最高。49.61%，任务3。78.80%，任务4。56.40%)，东京农业技术大学(Task 2a)。92.28%)， RIT(任务2b)。83.34%)。竞赛结果表明，手写公式的识别仍然是一个困难的结构模式识别任务。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 15th International Conference on Frontiers in Handwriting Recognition (ICFHR)

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