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Database of handwritten Arabic mathematical formulas images [article]

Ibtissem Hadj Ali, Mohammed Ali Mahjoub
2016 arXiv   pre-print
Although publicly available, ground-truthed database have proven useful for training, evaluating, and comparing recognition systems in many domains, the availability of such database for handwritten Arabic  ...  In this paper, we present a new public database that contains mathematical expressions available in their off-line handwritten form.  ...  In the case of mathematical expression recognition, the main difficulty in building a corpus is to find realistic expressions from the real world.  ... 
arXiv:1608.02388v1 fatcat:siujs7wbd5gddar25j3wknd5ru

Handwritten Mathematical Expressions Recognition using Back Propagation Artificial Neural Network

Sagar Shinde, Rajendra Waghulade
2016 Communications on Applied Electronics  
Handwritten mathematical expressions recognition is yet challenging task due to its intricate spatial structure, tangled semantics and 2-dimensional layout of the characters.  ...  There is a still room for enhancement in recognition rate. Artificial neural network is superior to disentangle classification problems.  ...  For dealing with mathematical formulas, the system should be made to execute both character and mathematical structure recognition based on the integration and bilocation of characters.  ... 
doi:10.5120/cae2016652125 fatcat:phjlg4gqjbb2fcokdeirndlhci

A Model of a Mathematics Editor using Intelligent Agent Technology

Teh Noranis Mohd Aris, Shahrin Azuan Nazeer
2010 Procedia - Social and Behavioral Sciences  
This paper presents a study of existing mathematics editor and proposed a web-based model of a mathematics editor using intelligent agent technology based on the Belief, Desires, Intention (BDI) model.  ...  To master the mathematics subject, a lot of exercises need to be done. Mathematical problem solving requires writing mathematics equations and symbols to simplify them to get the answer.  ...  The formula editor provides a real-time syntax checking for expressions. OO-CAS consists of three classes: AueCASApplication, Parser and Kernel.  ... 
doi:10.1016/j.sbspro.2010.12.081 fatcat:kzn42upavndk3go5ixjporp5cu

ICDAR 2019 CROHME + TFD: Competition on Recognition of Handwritten Mathematical Expressions and Typeset Formula Detection

Mahshad Mahdavi, Richard Zanibbi, Harold Mouchere, Christian Viard-Gaudin, Utpal Garain
2019 2019 International Conference on Document Analysis and Recognition (ICDAR)  
We summarize the tasks, protocol, and outcome for the 6th Competition on Recognition of Handwritten Mathematical Expressions (CROHME), which includes a new formula detection in document images task (+  ...  System performance has improved since the last CROHME -still, the competition results suggest that recognition of handwritten formulae remains a difficult structural pattern recognition task.  ...  The authors would also like to thank Puneeth Kukkadpu and Parag Mali for preparing data for the formula detection task, Soumen Kumar Koley for helping update the online submission system, and Rafael Padilla  ... 
doi:10.1109/icdar.2019.00247 dblp:conf/icdar/MahdaviZMVG19 fatcat:kdhicizkwngrfgls6odew7355q

Unsupervised Training Data Generation of Handwritten Formulas using Generative Adversarial Networks with Self-Attention [article]

Matthias Springstein and Eric Müller-Budack and Ralph Ewerth
2021 arXiv   pre-print
However, such a large training dataset does not exist for the task of handwritten formula recognition.  ...  The recognition of handwritten mathematical expressions in images and video frames is a difficult and unsolved problem yet.  ...  The final system is able to generate a large set of examples for the training of handwritten formula recognition models and thus, improves the accuracy of such systems.  ... 
arXiv:2106.09432v1 fatcat:2j5wi7e2x5hyjmh3ygf2673hfi


Yasutsuna Matayoshi, Ryo Oshima, Satoshi Nakamura
2018 Proceedings of the 2018 International Conference on Advanced Visual Interfaces - AVI '18  
Because some people appreciate their own handwritten characters blended with the handwritten characters of others, we propose a method for generating good handwriting by the real-time blending of users  ...  We also realize the prototype system and show its usefulness. CCS CONCEPTS • Human-centered computing → Human computer interaction (HCI) → Interactive systems and tools;  ...  Next, the system adds a formula to the handwriting database. Then, the system gets the formula for the handwriting of the fusion target from the database.  ... 
doi:10.1145/3206505.3206573 dblp:conf/avi/MatayoshiON18 fatcat:oi6cqq5uffhobdvz3l5m4py4zq

Stroke extraction for offline handwritten mathematical expression recognition [article]

Chungkwong Chan
2020 arXiv   pre-print
Given a ready-made state-of-the-art online handwritten mathematical expression recognizer, the proposed procedure correctly recognized 58.22%, 65.65%, and 65.22% of the offline formulas rendered from the  ...  datasets of the Competitions on Recognition of Online Handwritten Mathematical Expressions(CROHME) in 2014, 2016, and 2019 respectively.  ...  Acknowledgments This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.  ... 
arXiv:1905.06749v2 fatcat:ipdaeqvqmbhn7alnde3qfpcx7e

Math Search for the Masses: Multimodal Search Interfaces and Appearance-Based Retrieval [chapter]

Richard Zanibbi, Awelemdy Orakwue
2015 Lecture Notes in Computer Science  
"The Masses" refers to our emphasis on creating systems for mathematical non-experts, who may be looking to define unfamiliar notation, or browse documents based on the visual appearance of formulae rather  ...  Source code for both systems are publicly available.  ...  Thanks also to Manish Kanadje for proof-reading a draft of the paper.  ... 
doi:10.1007/978-3-319-20615-8_2 fatcat:rhts2tyg3bhv3blya6g75iubka

Math Search for the Masses: Multimodal Search Interfaces and Appearance-Based Retrieval [article]

Richard Zanibbi, Awelemdy Orakwue
2015 arXiv   pre-print
"The Masses" refers to our emphasis on creating systems for mathematical non-experts, who may be looking to define unfamiliar notation, or browse documents based on the visual appearance of formulae rather  ...  Source code for both systems are publicly available.  ...  Thanks also to Manish Kanadje for proof-reading a draft of the paper.  ... 
arXiv:1505.02798v1 fatcat:hrard5t23ngnxa5hcx577cx24u

Auraglyph: Handwritten Computer Music Composition And Design

Spencer Salazar, Ge Wang
2014 Zenodo  
To this end, we propose a new model for computer music system design on touchscreen devices, combining both pen/stylus input and multitouch gestures.  ...  Such a model surpasses the barrier of touchscreen-based keyboard input, preserving the primary interaction of touch and direct manipulation throughout the development of a complex musical program.  ...  We have found the speed and accuracy of LipiTk in this configuration to be satisfactory for real-time usage, though a slight, noticeable delay exists between finishing a stroke and the successful recognition  ... 
doi:10.5281/zenodo.1178927 fatcat:eethjkjeifgynet7biv4rjz6wi

Structure Editing of Handwritten Mathematics

Alexandra Mendes, Roland Backhouse, Joao F. Ferreira
2014 Proceedings of the Ninth ACM International Conference on Interactive Tabletops and Surfaces - ITS '14  
We present a structure editor that aims to facilitate the presentation and manipulation of handwritten mathematical expressions.  ...  The editor is oriented to the calculational mathematics involved in algorithmic problem solving and it provides features that allow reliable structure manipulation of mathematical formulae, as well as  ...  ACKNOWLEDGMENTS We thank the anonymous reviewers for the helpful comments.  ... 
doi:10.1145/2669485.2669495 dblp:conf/tabletop/MendesBF14 fatcat:qccndstztjgz7jqwhbvsa7pccu

Mathematical Formulae Recognition Using 2D Grammars

D. Pru_a, D. Pru_a, V. Hlavac, V. Hlavac
2007 Proceedings of the International Conference on Document Analysis and Recognition  
We present a method for off-line mathematical formulae recognition based on the structural construction paradigm and two-dimensional grammars.  ...  An important benefit of the structural construction is in treating the symbol segmentation in the image and its structural analysis as a single intertwined process.  ...  Schlesinger from the Ukrainian Academy of Sciences in Kiev for discussions on the issue.  ... 
doi:10.1109/icdar.2007.4377035 dblp:conf/icdar/PrusaH07 fatcat:5raqarvtnbbvbpzvuhq22ic5i4

Intelligent understanding of handwritten geometry theorem proving

Yingying Jiang, Feng Tian, Hongan Wang, Xiaolong Zhang, Xugang Wang, Guozhong Dai
2010 Proceedings of the 15th international conference on Intelligent user interfaces - IUI '10  
The results from evaluation study show that our system is well perceived and users have high satisfaction with the accuracy of sketch recognition, the effectiveness of visual hints, and the efficiency  ...  Computer-based geometry systems have been widely used for teaching and learning, but largely based on mouse-andkeyboard interaction, these systems usually require users to draw figures by following strict  ...  Paulson [25] studied the recognition of primitive sketches. Li [21] investigated synchronized recognition of graphs with real-time user feedback.  ... 
doi:10.1145/1719970.1719988 dblp:conf/iui/JiangTWZWD10 fatcat:tkqroxllazhw5c7oshnn7uv5iq

Image-to-Markup Generation with Coarse-to-Fine Attention [article]

Yuntian Deng, Anssi Kanervisto, Jeffrey Ling, Alexander M. Rush
2017 arXiv   pre-print
Our method is evaluated in the context of image-to-LaTeX generation, and we introduce a new dataset of real-world rendered mathematical expressions paired with LaTeX markup.  ...  Our approach outperforms classical mathematical OCR systems by a large margin on in-domain rendered data, and, with pretraining, also performs well on out-of-domain handwritten data.  ...  Acknowledgements We would like to thank Daniel Kirsch for providing us Detexify data, and Sam Wiseman and Yoon Kim for the helpful feedback on this paper.  ... 
arXiv:1609.04938v2 fatcat:mtrbt22yo5apfjquti3xsf2fzm

A Syntactic Approach for Handwritten Mathematical Formula Recognition

Abdelwaheb Belaid, Jean-Paul Haton
1984 IEEE Transactions on Pattern Analysis and Machine Intelligence  
In this paper we propose a system for the interpretation of 2-D mathematic formulas based on a syntactic parser.  ...  This system is able to recognize a large class of 2-D mathematic formulas written on a graphic tablet.  ...  ACKNOWLEDGMENT The authors would like to acknowledge the valuable participation of R. Mohr in this work. They also wish to thank C. Floc'h for having made every effort in preparing this paper.  ... 
doi:10.1109/tpami.1984.4767483 fatcat:bnvgt2jqu5gspkrjrwqrijd7s4
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