Average Reviews:
(More customer reviews)My greatest difficulty in using this book was locating the positions of the useful technical information scattered among all of the bad writing and poor document structure. Hiring an English major to clean up the writing, and a tech writer to revise the structure, could have helped bring the useful content out. Many sentences are poorly structured, individual paragraphs contain unrelated topics, sections seem to wander, acronyms go either undefined or repeatedly defined within adjacent paragraphs and sentences, some paragraphs repeat sentences almost verbatim, and there is an uneven mix of useful technical information, useful marketing information, and marketing/management drivel. There were parenthetical comments (like this) injected all over the book (or at least many parts). Some serious editing could have cut down the length. Here is an example:
"Whichever world model you use, information related to position must somehow be stored, modeled and mapped. The storage is typically handled in a spatial database; the modeling depends on the algorithms that can be associated with the world model. The mapping is the role of the mapping infrastructure, and to create those, location (or space or world) models are essential. It is also about the content or context data that can be associated with that location data for specific location-based services."
One might expect a hierarchical exposition on a) storage, b) modeling, and c) mapping after this apparently introductory paragraph. Unfortunately, this apparently introductory paragraph pops up in the middle of a subsection in the middle of a section in the middle of a chapter in the middle of the book, to be followed by a similar paragraph that wanders around a tangentially related set of topics.
The best thing about this book is its collection of links to web resources with better writing and clearer documentation. The book is worth about 1/2 of the pages it presents and 1/2 of its cost to the buyer, so I'd give it 2.5 stars if I could. Managers will love it.
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Local Positioning Systems: LBS Applications and Services explores the possible approaches and technologies to location problems including people and asset tracking, mobile resource management, public safety, and handset location-based services. The book examines several indoor positioning systems, providing detailed case studies of existing applications and their requirements, and shows how to set them up. Other chapters are dedicated to position computation algorithms using different signal metrics and determination methods, 2D/3D indoor map data and location models, indoor navigation, system components and how they work, privacy, deployment issues, and standards. In detail, the book explains the steps for deploying a location-enabled network, including doing a site-survey, creating a positioning model and floor maps, and access point placement and configuration. Also presented is a classification for network-based and ad-hoc positioning systems, and a framework for developing indoor LBS services.
This comprehensive guide will be invaluable to students and lecturers in the area of wireless computing. It will also be an enabling resource to developers and researchers seeking to expand their knowledge in this field.
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