What precision and recall are? After the predictive model has been finished, the most important question is: How good is it? Does it predict well? Evaluating the model is one of the most important tasks in the data science project, it indicates how good predictions are. Very often for classification problems we look at metrics …

## Data Science News – interesting articles, and stories from Data Science world. June

Data Science News – interesting articles, and stories from Data Science world. NEWS Experts Predict When Artificial Intelligence Will Exceed Human Performance – Artificial intelligence is changing the world and doing it at breakneck speed. The promise is that intelligent machines will be able to do every task better and more cheaply than humans. …

## Predictive model validation metrics.

Predictive model validation metrics. Why evaluate/test model at all? Evaluating the performance of a model is one of the most important stages in predictive modeling, it indicates how successful model has been for the dataset. It enables to tune parameters and in the end test the tuned model against a fresh cut of data. Below we …

## Absolute Beginner Intro to TensorFlow

Absolute Beginner Intro to TensorFlow. What is TensorFlow? The shortest definition would be, TensorFlow is a general-purpose library for graph-based computation. But there is a variety of other ways to define TensorFlow, for example, Rodolfo Bonnin in his book – Building Machine Learning Projects with TensorFlow brings up definition like this: “TensorFlow is an open …

## World of Data Science Digest – May

Data Science News Digest – handpicked articles, news, and stories from Data Science world. NEWS CUDA 9 Features Revealed – At the GPU Technology Conference, NVIDIA announced CUDA 9, the latest version of CUDA’s powerful parallel computing platform and programming model. Explaining How End-to-End Deep LearninSteers a Self-Driving Car – As part of a …

## Learning TensorFlow for free

A list of free resources to learn TensorFlow: TensorFlow website: www.tensorflow.org Udacity free course: www.udacity.com Google Cloud Platform: cloud.google.com Coursera free course: www.coursera.org Machine Learning with TensorFlow by Nishant Shukla : www.tensorflowbook.com ‘First Contact With TensorFlow’ by Prof. JORDI TORRES: jorditorres.org or you can order from Amazon: First Contact With Tensorflow Kadenze Academy: www.kadenze.com OpenShift: blog.openshift.com Tutorial by pkmital : github.com Tutorial …

## TensorFlow Quick Reference Table – Cheat Sheet.

TensorFlow Quick Reference Table – Cheat Sheet. TensorFlow is very popular deep learning library, with its complexity can be overwhelming especially for new users. Here is a short summary of often used functions, if you want to download it in pdf it is available here: TensorFlow Cheat Sheet – TensorFlow.uk If you find it useful …

## What is TensorFlow?

What is TensorFlow? TensorFlow is an open source software library for machine learning developed by Google – Google Brain team. Name TensorFlow derives from the operations which neural networks perform on multidimensional data arrays, often referred to as “tensors”. It is using data flow graphs and is capable of building and training variety of different …

## What is Resampling?

Resampling is any technique of generating a new sample from an existing dataset. There is a variety of methods for estimating the precision of sample statistics (medians, variances, percentiles) by using subsets of available data (jackknifing) or drawing randomly with replacement from a set of data points (bootstrapping). Exchanging labels on data points when performing …

## What is Regularization?

What is Regularization? In Machine Learning, very often the task is to fit a model to a set of training data and use the fitted model to make predictions or classify new (out of sample) data points. Sometimes model fits the training data very well but does not well in predicting out of sample data …