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Sefik Ilkin Serengil

Code wins arguments

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Author: Sefik Serengil

Homer Simpson Guide to Backpropagation

  Backpropagation algorithm is based on complex mathematical calculations. That’s why, it is hard to understand and that is the … More

backpropagation, batman, homer simpson, neural networks

How Data Science Once Saved the World

Cholera is a killer epidemic disease and it can cause passing away within hours after first symptons of disease appear. … More

clustering, game of thrones, john snow, london

Step Function as a Neural Network Activation Function

Activation functions are decision making units of neural networks. They calculates net output of a neural node. Herein, heaviside step … More

activation function, backpropagation, heaviside, neural networks

Signing Contents Digitally: An Email Implementation

“I was happy when I design my own signature. Also, deciding to put my signature under this job makes me … More

crypto, hash, Java, md5, public key, rsa, sha

Exchanging Encrypted Mails

2016 released Snowden is a biographical movie fictionalised life story of Former NSA employee Edward Snowden. The movie reveals illegal surveillance techniques of the government organization. Also, … More

aes, crypto, email, Java, rsa, snowden

Protecting Java Codes: Encrypted Class Loader

Cloud services are adopted by both start-ups and enterprises in recent years. However, it comes security issues. At this point, … More

a beautiful mind, aes, crypto, Java

Homer Sometimes Nods: Error Metrics in Machine Learning

Even the worthy Homer sometimes nods. The idiom means even the most gifted person occasionally makes mistakes. We would adapt this … More

classification, metric, regression

Small is Beautiful: working with short URLs

Today’s world limits our expressions lenght to 140 character. No matter you text SMS or Tweet, you have to fit your … More

bit.ly, bitlinks, bitly, blowfish, collision, goo.gl, google, hash, http get, http post, Java, url shortening

AI: a one-day wonder or an everlasting challenge

Debates between humans and computers start with mechanical turk. That’s an historical autonomous chess player costructed in 18th century. However, … More

chess, game go, poker

Adaptive Learning in Neural Networks

Gradient descent is one of the most powerful optimizing method. However, learning time is a challange, too. Standard version of gradient … More

adaptive learning rate, back propagation, gradient descent, neural networks

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