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Machine learning

Logarithmic loss (or cross-entropy)

Logarithmic loss (or cross-entropy) measures the performance of a classification model where the prediction input is a probability value between 0 and 1. The goal of our machine learning models is to minimize this value. It is also heavily used Read more…

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By admin, 6 yearsAugust 25, 2019 ago
Machine learning

Receiver operating characteristic (ROC ) curve

For binary classification problems, a good way to measure the performance of a model is by finding out AUC (Area Under The Curve) of ROC (Receiver Operating Characteristics). What is a ROC curve? It is a plot of True Positive Read more…

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By Deepanshu Lulla, 6 yearsAugust 11, 2019 ago
Machine learning

Confusion Matrix

Confusion Matrix Confusion Matrix is a group or matrix of metrics in supervised learning scenarios which determine how good a model is in predictions. Lets consider a binary classifier with results 1 or 0. A confusion matrix here will be Read more…

By Deepanshu Lulla, 6 yearsJuly 27, 2019 ago
Machine learning

Maths 101: Part 8: Hypothesis testing

Hypothesis Testing Hypothesis tests, also called significance tests, are ubiquitous in the traditional statistical analysis of published research. Their purpose is to help you learn whether random chance might be responsible for an observed effect. KEY TERMS Null hypothesis The Read more…

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By Deepanshu Lulla, 6 yearsJune 29, 2019 ago
Python

Write python like a pro: Part 1: Know your python version

Welcome to part 1 of writing python like a pro. This series is definitely part of the advanced python series. It assumes you already know python and are definitely comfortable with it. However, you are a person who wants to Read more…

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By admin, 6 yearsJune 15, 2019 ago
Dimensionality Reduction

Dimensionality Reduction In Machine Learning: Some mathematical prerequisites: Mean Vector, Covariance Matrix and Column Standardization

This is part 2 of Introduction to Dimensionality Reduction. In this blog post, we would several different mathematical prerequisites that one must know before trying to understand machine learning. Mean Vector The sample mean is a vector each of whose Read more…

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By Deepanshu Lulla, 6 yearsJune 1, 2019 ago
Clean Code

Clean Code Concepts: Be SOLID: Open Closed Principle

In this series, we would focus on some of the language-agnostic parts which can be used to improve your ability to write cleaner code in any language. So let’s dive right into the SOLID concepts of object-oriented design. S.O.L.I.D is an Read more…

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By admin, 6 yearsMay 11, 2019 ago
Dimensionality Reduction

Dimensionality Reduction: Part 1: Introduction and defining data as data frame

Introduction to Dimensionality Reduction There are several ways we can define Dimensionality Reduction. One way to define it is: Dimensionality Reduction refers to the process of converting a set of data having vast dimensions into data with lesser dimensions ensuring Read more…

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By Deepanshu Lulla, 6 yearsMay 11, 2019 ago
Data Preprocessing

Data Preprocessing and Cleaning: Part 1: Column Normalization

Before applying any dimensionality reduction technique sometimes it is important to preprocess the data. There are several ways which we can use for preprocessing data. In this post, we will explore one of the common ways to do data preprocessing Read more…

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By Deepanshu Lulla, 6 yearsApril 20, 2019 ago
Clean Code

Clean Code Concepts: Be SOLID: Single Responsibility Principle

Writing clean code is more of an art rather than a science. So What really makes code cleaner?. In this series called Clean Code Concepts, we investigate some of the ways to write code in a clean way. There are Read more…

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By Deepanshu Lulla, 6 yearsApril 6, 2019 ago

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