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PostGIS Cookbook

You're reading from   PostGIS Cookbook Store, organize, manipulate, and analyze spatial data

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Product type Paperback
Published in Mar 2018
Publisher
ISBN-13 9781788299329
Length 584 pages
Edition 2nd Edition
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Authors (6):
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Pedro Wightman Pedro Wightman
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Pedro Wightman
Bborie Park Bborie Park
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Bborie Park
Paolo Corti Paolo Corti
Author Profile Icon Paolo Corti
Paolo Corti
Stephen Vincent Mather Stephen Vincent Mather
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Stephen Vincent Mather
Thomas Kraft Thomas Kraft
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Thomas Kraft
Mayra Zurbarán Mayra Zurbarán
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Mayra Zurbarán
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Toc

Table of Contents (14) Chapters Close

Preface 1. Moving Data In and Out of PostGIS FREE CHAPTER 2. Structures That Work 3. Working with Vector Data – The Basics 4. Working with Vector Data – Advanced Recipes 5. Working with Raster Data 6. Working with pgRouting 7. Into the Nth Dimension 8. PostGIS Programming 9. PostGIS and the Web 10. Maintenance, Optimization, and Performance Tuning 11. Using Desktop Clients 12. Introduction to Location Privacy Protection Mechanisms 13. Other Books You May Enjoy

Adding noise to protect location data

Some of the mechanisms designed for location privacy protection are based on location obfuscation, which is explained in [5] as the means of deliberately degrading the quality of information about an individual's location in order to protect that individual's location privacy.

This is perhaps the simplest way to implement location privacy protection in LBISs because it has barely any impact on the server-side of the application, and is usually easy to implement on the client-side. Another way to implement it would be on the server-side, running periodically over the new data, or as a function applied to every new entry.

The main goal of these techniques is to add random noise to the original location obtained by the cellphone or any other location-aware device, so as to reduce the accuracy of the data. In this case, the user can...

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