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Classification and Clustering of English letters using Machine Learning (ML) algorithms

The ML algorithms used:

• Classification
  1. Decision Tree
  2. Support Vector Machine (SVM)
  3. Ada Boost (an ensemble method)
• Clustering
  1. Hierarchical clustering (Agglomerative)

Requirements

Project Dir Structure

.
├── data
│   ├── 1. original
│   └── 2. edited
├── images
│   └── logos
├── logs
├── outputs
├── reports
└── utils
    └── jqmcvi

10 directories

Data

The data was obtained from here and was firt used and introduced by Frey and Slate [1].

Dataset info:

• Title: Letter Image Recognition Data
• Source Information
  • Creator: David J. Slate

    Odesta Corporation; 1890 Maple Ave; Suite 115; Evanston, IL 60201

  • Donor: David J. Slate (dave@math.nwu.edu) (708) 491-3867
  • Date: January, 1991
• Number of Instances: 20000
• Number of Attributes: 17 (Letter category and 16 numeric features)
• Attribute Information:
  1. lettr capital letter (26 values from A to Z)
  2. x-box horizontal position of box (integer)
  3. y-box vertical position of box (integer)
  4. width width of box (integer)
  5. high height of box (integer)
  6. onpix total # on pixels (integer)
  7. x-bar mean x of on pixels in box (integer)
  8. y-bar mean y of on pixels in box (integer)
  9. x2bar mean x variance (integer)
  10. y2bar mean y variance (integer)
  11. xybar mean x y correlation (integer)
  12. x2ybr mean of x * x * y (integer)
  13. xy2br mean of x * y * y (integer)
  14. x-ege mean edge count left to right (integer)
  15. xegvy correlation of x-ege with y (integer)
  16. y-ege mean edge count bottom to top (integer)
  17. yegvx correlation of y-ege with x (integer)

Contact

Should you have any questions, feel free to contact TekBoArt @tekboart.

Reference

[1] Frey, P. W., & Slate, D. J. (1991). Letter recognition using Holland-style adaptive classifiers.Machine learning,6(2), 161-182.

License

Shield:

• Refer to the file LICENSE for more information regarding the license of this repository.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.