wisar:references-on-modeling-lost-person-behavior [CS Wiki]

Maritime search: http://www.ifremer.fr/web-com/stw2004/sar/pdf/spaulding_ppt.pdf SAROPS. Notice the use of particle filter models, with transition probabilities being governed by currents (analogous to the influence of terrain/vegetation) and by events/intentions (analogous to things like trails, drainages, and decision points).
- I think it is an interesting parallel. Just like a disabled boat under the influence of currents, lost people can 'drift' also. Someone who has been lost for a while and who is exhausted is probably pretty much at the mercy of the terrain. They'll probably take the path of least resistance. I think the problem is being able to decide when a person will drift and when they will do things that can't be predicted with a topo map. It might be easier with boats - they probably assume the boat is damaged/drifting if they can't reach it on the radio. I used Wikipedia's article on particle filters in an attempt to better understand this. –Spencer Clark

Wilderness search software Incident Commander Pro. Notice how it only uses dispersion patterns, but doesn't currently use dispersion angles and distances. It also doesn't seem to use decision points.
- Website: http://sartechnology.ca/sartechnology/
- I tried the demo of this software. It's klunky and the demo is crippled, to boot. You can't even pull up the GIS interface in this demo - it brings up a picture of what the actual functionality looks like… It's hard to say what the actual program is like. –Spencer Clark

Trail-based probability of area Terrain-based Approach to POA Estimation. This is by the same author as the Incident Commander Pro software. I'm confused that the software doesn't seem to include trail-based dispersion information. Someone needs to play with this software.

Bayesian network and Monte Carlo methods for POA. Send email to Mike for a copy of this paper. Lanny's preliminary work on modeling movement influenced by terrain and vegetation.

I found this site that seems to be interesting. It has some available code I think we can work with - http://sarbayes.org/
- This is pretty cool. I'm surprised nobody knew about this one before? -Spencer Clark

Walking Straight into Circles, by Jan Souman. I find it really intriguing -Spencer G

wisar/references-on-modeling-lost-person-behavior.txt · Last modified: 2014/08/11 13:32 by tmburdge

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