Classifying Diseases Using Convolutional Neural Networks
Soham Chatterjee
Satya Avva
Archana Iyer
Malaikannan Sankarasubbu
About Us
- Satya Avva, Ph.D. Life Sciences graduate from LSU
- Archana Iyer, Soham Chatterjee
- Freshers from SRM University, and
- B. Tech. Electrical, Electronics
- Next Tech Lab
- Saama Blog
- Soham's Blog
A BIG THANKYOU
- Thank you to Dr. Anand Dubey, Mr. Nikhil Gopinath, and Prof Chandrabose for providing their technical inputs and for reviewing our work
- Thank you to Malaikannan, for bringing us together as a team and leading our research from end to end
What is DNA Methylation?
Addition of a methyl group to Cytosine base in CpG context
Why Study DNA Methylation?
Gene in the Normal Cell
Gene in the Cancer Cell
Lam K, et al., 2016
Process for Solving Our Problem
Data
CpG Site Number
Methylated Value
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32 diseases
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10,000 samples
- Rows: 365860
- Converted into a matrix of shape (220,1663)
Text
Data Pre Processing
Convolution Neural Network
Model Training
- Adam optimizer with an initial learning rate of(1e-4)
- All of the parameters were zero-centered
- Normal distribution with standard deviation of 0.02
- Training was halted if the model accuracy decreased twice by more than 0.5%
Accuracy
Loss
- Base CNN- This was a vanilla CNN with 3X3 filters; 3 filter layers; 10 filters in each layer
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CNN Width: Rectangular filter with window sizes 1, 3, 5, 7
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CNN Height and Width: Combination of both height-wise and width-wise filter of windows 1, 3, 5, 7
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CNN Height: Height-wise filters of window 1, 3, 5, 7.
Training Approach
Model Accuracy
Conclusion
- Model is able to learn the minute differences of changing Methylation patterns on a genome-wide scales.
- Deep Learning based approach is faster, cheaper and more accurate than the traditional approach.
- With more appropriate training data, it can also be possible to predict the different stages of cancer.
Contact us
- Feedback- A link to give us a feedback-tinyurl.com/dnamethyltalk
- We would love to hear from you and your responses will be anonymous!
- You can get the link to the slides at the end.
- Contact us:
- Satya Avva
- satya.avva@saama.com
- Archana Iyer:
- varchanaiyer139@gmail.com
- Soham Chatterjee:
- 96soham96@gmail.com
- csoham.wordpress.com
DNA
By archana iyer
DNA
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