Hello Nadeem

Le 13/02/14 14:23, Nadeem Anjum a écrit :
A Google doc sounds good. I have started one, which can be accessed at:
https://docs.google.com/document/d/1CEOXvb6jFZKBSTM160-4lXFAoFgjROpUC46VlbmGi9g/edit

Cool, thanks! Could you write some lines about your work? Other uses cases are about one page long, sometime with figures.

Note: the goal is not to describe a particular work, but to describe the general scenario where some kind of data or information are likely to be useful to policemen (for example). The emphasis is on which objects or features are moving in this scenario, what are the characteristics of their displacements, which data are available and what are the characteristic of those data (sampling rate, accuracy, etc.).

Looking at the other use cases, the pattern seems to be:

 * Description of the problem that we try to solve.
 * Objects that could be represented as a moving features. Examples:
     o Pedestrians. Speed: 4km/h. State: stay or walking.
     o Vehicles. Speed: 60 km/h.
     o Vessels. Details: enter/leave a particular area. Speed: 11 knots.
     o Vessels. Details: suspicious manoeuvres. Speed: rapidly varying.


A description of data sources. Example:

 * Smart phones. Localization method: GPS/Wi-Fi positioning. Sampling
   rate: 1 point per second. Accuracy: 100 metres.
 * Automatic Identification System (AIS). Sampling rate: 1 point every
   6 minutes. Accuracy: 100 metres.



An explanation of constraints that a standard would need to meet in order to be useful to your scenario. Example:

 * Aviation: because of the large amount of data, an efficient binary
   format is necessary. Verbose XML can not work.


Thanks!

    Martin

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