About analysing crowd videos – a few
years ago when I was running a project to develop guidelines on research ethics
(including data protection regulations) a poor chap came up to me at a
conference and said that he had hoped to do some research on crowd behaviour at
football matches (to prevent another Hillsborough disaster) by analysing videos
of crowd movements. However he was told by his university ethics committee that
he could only do so if he got individual permission from every member of the
crowd! But I suppose the police are under no such constraints..
Ursula Huws
From:
email list for Radical Statistics [mailto:[log in to unmask]] On Behalf Of BYRNE D.S.
Sent: 16 August 2007 15:16
To: [log in to unmask]
Subject: Re: The holy grail?
This is all about simple complexity and
may or may not be correct in relation to such simple complex systems. By a
simple complex system I mean a system where emergence occurs solely as a result
of interaction among the elements of the system. So for example if we look at a
flock of starlings changes in flight pattern result from each bird observing
very simple rules in relation to its neighbours but the whole flock generally
makes quite complex changes of direction as one, although even here groups may
split off. Another example is traffic jams, and Gawd help us all, perhaps
financial markets.
The key issue would be identifying when a phase shift is
about to occu
Crowds are another matter and again how would you monitor -
CCTV I suppose. So expect to have the polises charge you on a
demonstration because five people are moving so as to trigger a response
- recipe for revolution perhaps?
David Byrne
From: email
list for Radical Statistics on behalf of Paul Spicker
Sent: Mon 8/13/2007 1:12 PM
To: [log in to unmask]
Subject: The holy grail?
There is
a remarkable claim in the "news" section of New Scientist this week,
in a piece entitled "Predicting change, not a moment too soon".
A piece in Physical Review E (which I don't have access to: r
I think it was George Gallup who suggested that it might be ultimately be
possible to predict election results using five people. I'm not, sure, though,
that I believe it. If anyone's in a position to appraise the technique it
would be fascinating to know about it.
Paul Spicker
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