Machine learning provides computer algorithms that automatically discover patterns in data and make intelligent decisions from them.

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223 views

Stochastic gradient descent squared loss

I have implemented stochastic gradient descent in matlab and I would like to compare my results with another source but the error I am getting is higher (I am using squared error). I am worried I am ...
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40 views

Learning using Neural Network

This is my code for MLP backpropagation. ...
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1answer
41 views

Compute logistic regression on tweet objects

Is my approach good to naming variables and exception handling? I would like to make this code more robust and maintainable. I need advice on exception handling, var naming and comments. ...
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2answers
122 views

Defensive programming type-checking

I have issues with dynamically typed languages, and I tend to worry about type a lot. Numpy has different behaviour depending on if something is a matrix or a plain ndarray, or a list. I didn't ...
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1answer
701 views

Clojure Neural Network

After reading this article about Neural Networks I was inspired to write my own implementation that allows for more than one hidden layer. I am interested in how to make this code more idiomatic - ...
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1answer
222 views

Why does the LR on spark run so slowly?

Because the MLlib does not support the sparse input, I ran the following code, which supports the sparse input format, on spark clusters. The settings are: 5 nodes, each node with 8 cores (all the ...
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1answer
2k views

Alternative to Python's Naive Bayes Classifier for Twitter Sentiment Mining

At the advice of someone on SO I'm posting this here. I am doing sentiment analysis on tweets. I have code that I developed from following an online tutorial (found here: ...