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Essentials of Positioning and Location Technology by David Bartlett

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8 When things go wrong

8.1 Systems, probability and false positives

8.1.1 Localisation and positioning are probabilistic

Any system for determining position or location is probabilistic in that the position it computes is based on noisy measurements and uncertainty. There is no such thing as absolute certainty or guarantee of the output. Therefore any application utilising the output of the system should take this probabilistic nature into account. All too often applications have not done this adequately leading to a level of scepticism amongst users, and in some cases mistrust of the systems.

8.1.2 Locating objects requires a system

In most ‘professional’ uses of locating systems it is necessary to place a level of trust in the system and to have ...

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