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Kai Zhao

Kai Zhao
in
Towards Data Science

Feature Extraction using Principal Component Analysis — A Simplified Visual Demo

Understanding the Transformation Between Features and Principal Components

Dec 10, 2019

Feature Extraction using Principal Component Analysis — A Simplified Visual Demo

Dec 10, 2019

Kai Zhao
in
Towards Data Science

Pre-Process Data with Pipeline to Prevent Data Leakage during Cross-Validation.

In machine learning, K-fold Cross-validation is a frequently used validation technique for assessing how the results of a statistical…

Sep 4, 2019

Pre-Process Data with Pipeline to Prevent Data Leakage during Cross-Validation.

Sep 4, 2019

Kai Zhao
in
Analytics Vidhya

A Random Walk in Forest

Tuning the Random Forest Algorithm with Hyperparameters

Jul 24, 2019

A Random Walk in Forest

Jul 24, 2019

Kai Zhao

The Power of F-Score

The Importance Role of F-Score in Text Classification during Natural Language Processing.

Jul 11, 2019

The Power of F-Score

Jul 11, 2019

Kai Zhao

The Magic of Log

Data Science Journey — Chapter 1

Jun 27, 2019

The Magic of Log

Jun 27, 2019

Kai Zhao

New Kid on The Block

Data Science Journey — Chapter Zero

Jun 12, 2019

New Kid on The Block

Jun 12, 2019

Kai Zhao

Kai Zhao

I am a data scientist with engineering background and practical business experience in environmental & sustainability and financial investment.

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