Chester Lab

Thinking will not overcome fear but action will.

Nlp with churn

Define the problem Customer churn occurs when customers or subscribers stop doing business with a company or service. All the telecom/cable/tv services need to know what happen. What kind of peop...

Posted by Chester Lab on November 6, 2019

To answer SCUM master/Agile development

Intro I was working for my first commercial project, my mentor ask me Do you know what’s the scrum and agile?. It’s like invisible elephant stays at room. Everyone is talking about that, but I don...

Posted by Chester on July 1, 2019

How to become data scientist

Not PHD, Not Experienced, Not in top 30 School

Where I start I want to share the experience about how I prepare data scientist. Here’s my background. All I want you know is I’m normal and not lucky guy. I work in school as Research assistance f...

Posted by Chester on November 30, 2018

DL Framework Seq2Seq

Toy data for basic tensorflow on seq2seq model

Introduction This post is series of Tensorflow exploring. It’s personal study note. I assume reader should have basic idea about how deep learning works. Tensorflow Basics Tensor rank scaler => ...

Posted by Chester on November 21, 2018

Amazon 14 Principle

What I learn from Amazon and Preparation

Leaderships # Behavior Questions - 14 Principle #1. Customer Obsession Leaders start with the customer and work backward. They work vigorously to earn and keep customer trust. Although leaders pay...

Posted by Chester on November 20, 2018

NLP engineer interview questions collections

Practice make perfect

Question Collection What’s word embedding and how to implement? Vector space models (VSMs) represent (embed) words in a continuous vector space where semantically similar words are mapped to nea...

Posted by Chester on November 19, 2018

DS Question Collection-A/B Test

Failure doesn't defeat you

A/B testing & Interview Question Here’s some collection on forum. All the code can be found at my github repository. is significant level? What’s P-value? P-value best explained with example ...

Posted by Chester on November 9, 2018

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Always look for better challenge :)

✉️ chsieh5@hawk.iit.edu