Data Science

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Easy to understand explanation of Big-O notation without any fancy terms

The data warehouse systems save the data using a multidimensional schema. This schema is useful to manage a huge amount of data for analytical purposes. There are two widely applied schemas. Star Schema and Snowflake Schema.

This list contains many different websites that have SQL practice functionality.

Data Science and Machine Learning : Machine Learning Overview

What is Confusion Matrix and Advanced Classification Metrics? After data preparation and model training, there is model evaluation phase which I mentioned in my earlier article Simple Picture of Machine Learning Modelling Process. Once model is developed, the next phase is to calculate the performance of the developed model using some evaluation metrics. In this article, you will just discover about confusion matrix though there are many classification metrics out there. Mainly, it focuses...

If you never used GitHub, and don’t know how to use this with Git, then this article is for you. GitHub is one of the most popular codes hosting platforms to collaborate teamwork. Before going to start with GitHub, we need to understand that Git and GitHub are different things. Git is a version control system that helps us to track the computer programs and the changes that were made over time. And GitHub is the web hosting platform that hosts a Git server program to store the code.

“Perhaps the best test of a man’s intelligence is his capacity for making a summary” — Lytton Strachey

支持向量機器 (Support vector machine)通常用在機器學習 (Machine learni…