Book Image

Hands-On Data Preprocessing in Python

By : Roy Jafari
5 (2)
Book Image

Hands-On Data Preprocessing in Python

5 (2)
By: Roy Jafari

Overview of this book

Hands-On Data Preprocessing is a primer on the best data cleaning and preprocessing techniques, written by an expert who’s developed college-level courses on data preprocessing and related subjects. With this book, you’ll be equipped with the optimum data preprocessing techniques from multiple perspectives, ensuring that you get the best possible insights from your data. You'll learn about different technical and analytical aspects of data preprocessing – data collection, data cleaning, data integration, data reduction, and data transformation – and get to grips with implementing them using the open source Python programming environment. The hands-on examples and easy-to-follow chapters will help you gain a comprehensive articulation of data preprocessing, its whys and hows, and identify opportunities where data analytics could lead to more effective decision making. As you progress through the chapters, you’ll also understand the role of data management systems and technologies for effective analytics and how to use APIs to pull data. By the end of this Python data preprocessing book, you'll be able to use Python to read, manipulate, and analyze data; perform data cleaning, integration, reduction, and transformation techniques, and handle outliers or missing values to effectively prepare data for analytic tools.
Table of Contents (24 chapters)
1
Part 1:Technical Needs
6
Part 2: Analytic Goals
11
Part 3: The Preprocessing
18
Part 4: Case Studies

Exercises

  1. In your own words, describe the difference between a dataset and a database.
  2. What are the advantages and disadvantages of structuring data for a relational database? Mention at least two advantages and two disadvantages. Use examples to elucidate.
  3. In this chapter, we were introduced to four different types of databases: relational databases, unstructured databases, distributed databases, and Blockchain.

    a. Use the following table to specify a ranking for each of the four types of databases based on the criteria presented in the table.

    b. Provide reasoning for your selections.

    The table already has some of the rankings to get you started. N/A stands for Not applicable. Study the ranking provided and give your reasoning as to why they are correct.

    Figure 4.8 – Database type ranking

  4. In this chapter, we were introduced to five different methods for connecting to databases: direct connection, web page connection, API connection, request connection, and publicly...