Book Image

Geospatial Data Science Quick Start Guide

By : Abdishakur Hassan, Jayakrishnan Vijayaraghavan
Book Image

Geospatial Data Science Quick Start Guide

By: Abdishakur Hassan, Jayakrishnan Vijayaraghavan

Overview of this book

Data scientists, who have access to vast data streams, are a bit myopic when it comes to intrinsic and extrinsic location-based data and are missing out on the intelligence it can provide to their models. This book demonstrates effective techniques for using the power of data science and geospatial intelligence to build effective, intelligent data models that make use of location-based data to give useful predictions and analyses. This book begins with a quick overview of the fundamentals of location-based data and how techniques such as Exploratory Data Analysis can be applied to it. We then delve into spatial operations such as computing distances, areas, extents, centroids, buffer polygons, intersecting geometries, geocoding, and more, which adds additional context to location data. Moving ahead, you will learn how to quickly build and deploy a geo-fencing system using Python. Lastly, you will learn how to leverage geospatial analysis techniques in popular recommendation systems such as collaborative filtering and location-based recommendations, and more. By the end of the book, you will be a rockstar when it comes to performing geospatial analysis with ease.
Table of Contents (9 chapters)

Exploratory data analysis

Let's start reading the data. We will be using two files: one CSV with ratings and another GeoJSON file with restaurants and their locations. Let's first read the ratings of the CSV file.

Rating data

This file contains the final rating of restaurants. It has userID and placeID, which we can merge with the GeoJSON datasets of restaurants and rating columns. Let's read the data in pandas and look at the first five rows:

ratings = pd.read_csv('RCdata/rating_final.csv')
ratings.head()

The table looks like this, with a rating of each user for some restaurants:



User ratings

We have 1,161 rating rows and if we look at the first five rows of the rating column, the first three rows...