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Cracking the Data Science Interview

Cracking the Data Science Interview

By : Leondra R. Gonzalez, Stubberfield
4.7 (6)
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Cracking the Data Science Interview

Cracking the Data Science Interview

4.7 (6)
By: Leondra R. Gonzalez, Stubberfield

Overview of this book

The data science job market is saturated with professionals of all backgrounds, including academics, researchers, bootcampers, and Massive Open Online Course (MOOC) graduates. This poses a challenge for companies seeking the best person to fill their roles. At the heart of this selection process is the data science interview, a crucial juncture that determines the best fit for both the candidate and the company. Cracking the Data Science Interview provides expert guidance on approaching the interview process with full preparation and confidence. Starting with an introduction to the modern data science landscape, you’ll find tips on job hunting, resume writing, and creating a top-notch portfolio. You’ll then advance to topics such as Python, SQL databases, Git, and productivity with shell scripting and Bash. Building on this foundation, you'll delve into the fundamentals of statistics, laying the groundwork for pre-modeling concepts, machine learning, deep learning, and generative AI. The book concludes by offering insights into how best to prepare for the intensive data science interview. By the end of this interview guide, you’ll have gained the confidence, business acumen, and technical skills required to distinguish yourself within this competitive landscape and land your next data science job.
Table of Contents (21 chapters)
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1
Part 1: Breaking into the Data Science Field
4
Part 2: Manipulating and Managing Data
10
Part 3: Exploring Artificial Intelligence
16
Part 4: Getting the Job

Getting started with supervised machine learning

Supervised learning is a type of machine learning where the algorithm learns from a labeled dataset, which consists of input features and their corresponding target variables or labels. These labels are the “response variable,” “target variable,” or “output variable” – in other words, the thing you are trying to predict.

There are two types of supervised modeling that we will focus on:

  • Regression
  • Classification

Let’s take a closer look at them.

Regression versus classification

Regression is a specific type of supervised learning where the goal is to predict continuous numerical values. In a regression task, the algorithm learns a mapping between input features and a continuous target variable. The output of the regression model is a continuous value, which can represent quantities such as price, temperature, sales, or any other real-valued quantity. Linear...

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