Orin Conn – Medium

Published in Level Up Coding

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Using GridSearchCV to optimize your Machine Learning model

Hyper-parameter tuning can help you get the best performance out of your model — When training your machine learning model, creating a baseline, or “vanilla” model without any specific tuning is most often the protocol. We do this to benchmark how well our model will perform on our data. So when we tune the hyperparameters, we can tell if improvements are being made. …

5 min read

Using GridSearchCV to optimize your Machine Learning models

Published in The Startup

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Bayes’ Theorem Probability

An introduction to a fundamental lesson in Data Science. One of the most important concepts we can know in Data Science is Bayes’ Theorem. Named after the British mathematician and Presbyterian minister Thomas Bayes (18th century), Bayes’ theory is built on conditional probability. Bayes allows us to deductively reason our…

Bayes Theorem

6 min read

May 4, 2021

Testing the Efficacy of Your Website’s New Feature (Part 2)

Technically known as A|B testing or hypothesis testing Following up on Part 1, I’m now going to walk through our simple A|B test using Python! Here is an example of what our website’s data looks like: import pandas as pd import numpy as np df = pd.read_csv('ad_actions.csv') df.tail()

3 min read

Testing the Efficacy of Your Website’s New Feature (Part 2)

Apr 26, 2021

Python Challenges, Episode 6

A coding challenge walkthrough, number 6. I’ll be posting a few of these individually, as they are basically required practice if you are an entry-level data analyst or data scientist looking for your first position. Think from the hiring manager’s perspective. They see you might have some projects and coding…

Python

5 min read

Apr 19, 2021

Attacking a Hackerrank coding challenge in Python

Challenge number 4 Back to my series of coding challenge questions. I’ll be posting a few of these individually, as they are basically required practice if you are an entry-level data analyst or data scientist looking for your first position. Think from the hiring manager’s perspective. They see you might…

4 min read

Apr 12, 2021

Hackerrank Challenge Walkthrough

Another question of the challenge series answered step-by-step Back to my series of coding challenge questions. I’ll be posting a few of these individually, as they are basically required practice if you are an entry-level data analyst or data scientist looking for your first position. Think from the hiring manager’s…

4 min read

Apr 6, 2021

Codility-type coding challenge walkthrough: array rotation

and why doing these questions are worth your time Back to my series of coding challenge questions. I’ll be posting a few of these individually, as they are basically required practice if you are an entry-level data analyst or data scientist looking for your first position. Think from the hiring…

3 min read

Mar 29, 2021

Hackerrank-type coding question: balanced-string

Python

3 min read

Mar 23, 2021

A Codility-type question walkthrough

and why doing these questions are worth your time If you are like me, a noob and entry-level data scientist, you probably have sighed at the thought of the dreaded coding challenge. There are so many possible questions, how could you know what will be on the test? Data science…

3 min read

Mar 16, 2021

An Intro to Object-Oriented Programming

The proper way to program In addition to relearning various aspects of programming foundations, I’d like to take an opportunity to write about Object-Oriented Programming (OOP). Object-Oriented Programming is a programming paradigm and a way to classify a programming language based on its features. I’ll just by typing it as…

3 min read