error

Your navigator is out-of-date

Our fonctionnalites cannot works well or create some bugs. Please use a more recent version (at least Internet Explorer 8) or an other navigator

INK_ME ISI Nantes KAIST Mathematical Expression database

Contact us to get the database

Information

Categories Handwriting Recognition
Created the16 Feb 2015

Information

This database is a merging of 4 databases from 3 laboratories :

  • Indian Statistical Institute (Kolkata, India) : Prof. Utpal Garain, Computer Vision and Pattern Recognition (CVPR) Unit
  • IRCCyN (Nantes, France) : Dr. Harold Mouchère and Prof. Christian Viard-Gaudin, IVC team
  • Korea Advanced Institute of Science and Technology (Daejeon, Korea), Mr. Dae Hwan Kim and Prof. Jin Hyung Kim, Division of Computer Science

From this merging, the database of the CROHME competition at ICDAR 2011 has been extracted. The selection of the CROHME parts is based on the common grammar. Please visit the CROHME website for more information about it.

All these databases have the same inkml format. This XML format allows segmentation and labeling of symbols at the stroke level. Furthermore the MathML ground-truth of mathematical expressions is embedded in each inkml file.

The next table shows the number of expressions of each dataset with a link to each specific description.

DB Lab #Math. Expr. #Symbol class #ME in CROHME Train DB #ME in CROHME Test DB
KME1&KME2 KAIST 844 55 720 120
ISI CVPRU 95 122 00 12
AWAL_EM IVC 281 37 00 204
HAMEX IVC 213 49 201 12

 

When you use this dataset in a publication, please make a reference to this webpage or to one of these papers :

  • KME1&KME2 : "Efficient Search Strategy in Structural Analysis for Handwritten Mathematical Expression Recognition", Taik Heon Rhee and Jin Hyung Kim, Pattern Recognition 42 (2009), Vol.42 No.12 pp.3192-3201, December 2009. "Top-Down Search with Bottom-up Evidence for Recognizing Handwritten Mathematical Expression," Dae Hwan Kim and Jin Hyung Kim, The 12th International Conference on Frontiers in Handwriting Recognition (ICFHR), Nov 2010, Kolkata, India. "Conditional Random Field Parsing for Recognizing Online Handwritten Mathematical Expressions," Dae Hwan Kim and Jin Hyung Kim, The 2nd China-Japan-Korea Joint Workshop on Pattern Recogition (CJKPR), Nov 2010, Hukuoka, Japan.
  • ISI : EMERS : a tree matching-based performance evaluation of mathematical expression recognition systems, Kunal Sain, Abhishek Dasgupta, Utpal Garain, IJDAR 14(1) : 75-85 (2011)
  • AWAL_EM : Towards Handwritten Mathematical Expressions Recognition,Awal A.-M., Mouchère H., Viard-Gaudin C., Proceedings of the 10th International Conference on Document Analysis and Recognition ICDAR 2009, Espagne (2009)
  • HAMEX : HAMEX - a Handwritten and Audio Dataset of Mathematical Expressions, Quiniou S., Mouchère H., Peña Saldarriaga S., Viard-Gaudin C., Morin E., Petitrenaud S., Medjkoune S., Proceedings of the 11th International Conference on Document Analysis and Recognition, ICDAR 2011, Chine (2011)
  • CROHME : CROHME2011 : Competition on Recognition of Online Handwritten Mathematical Expressions, Mouchère H., Viard-Gaudin C., Garain U., Kim D. H., Kim J. H. Proceedings of the 11th International Conference on Document Analysis and Recognition, ICDAR 2011, Chine (2011)

Source publication : Please, cite the following paper(s) in your publications if you use this database in your work

Hamex - a handwritten and audio dataset of mathematical expressions S. Quiniou, H. Mouchère, S. Peña Saldarriaga, C. Viard-Gaudin, E. Morin, S. Petitrenaud, S. Medjkoune

Conference paper11th International Conference on Document Analysis and Recognition, ICDAR 2011, Sep 2011, Beijing, China BibTex XML

Crohme2011: competition on recognition of online handwritten mathematical expressions H. Mouchère, C. Viard-Gaudin, U. Garain, D. Kim, J. Kim

Conference paper11th International Conference on Document Analysis and Recognition, ICDAR 2011, Sep 2011, Beijing, China BibTex XML

Towards handwritten mathematical expressions recognition A. Awal, H. Mouchère, C. Viard-Gaudin

Conference paper10th International Conference on Document Analysis and Recognition, ICDAR 2009, Jul 2009, Barcelone, Spain BibTex XML