Reply by Fred Marshall December 4, 20052005-12-04
"John" <joehatesspam@nospam.spamshit> wrote in message 
news:43921415$0$67256$157c6196@dreader2.cybercity.dk...
> Hi > > I have a 10-dimensional vector v(t)=(C1(t),C2(t),......,C10(t)) where > Cj(t) is between 0 and pi for any t.
***So v() and Cj() are continuous in time.
> > I let t run from t=0 to t=T and get a set S of vectors > S={v(0),v(1),.....,v(T)}
***So now you have sampled v(), eh? It's on a discrete set of time indices. Or are you suggesting (not so clearly) that S is an infinite set of vectors v?
> > How do I map this set S into a discrete set D ?
***Why is S not a discrete set? Actually it would help to define a couple of things: T is a positive integer. N=T ... which may seem trivial but helps the notation be more typical where there are N+1 elements in S: S={v(0),v(T/N),.....v(T-T/N),v(T)} The v(j) terms are all on discrete times and, thus are vectors: v(j) = (C1(j),C2(j),......,C10(j)). So the v() here are vectors of length 10 and S is a matrix that is 10 X (N+1)T no??? Fred
Reply by John December 4, 20052005-12-04
> > > What's that a set of T+1 (quantized?) vectors (centroids?) along the above > curve?
No, it's a set of observations.
> > What is the definition of the discrete set D? >
Well. lets just say that the range 0 to pi is mapped into the discrete range 0,0.1,0.2,........3.2
Reply by NS December 4, 20052005-12-04
You first need to define some distortion measure or performance measure 
for the mapping.  Then, given the distortion measure one may design an 
optimal mapping.

John wrote:
> Hi > > I have a 10-dimensional vector v(t)=(C1(t),C2(t),......,C10(t)) where Cj(t) > is between 0 and pi for any t.
OK, this is a curve in a 10 dimensional space.
> I let t run from t=0 to t=T and get a set S of vectors > S={v(0),v(1),.....,v(T)}
What's that a set of T+1 (quantized?) vectors (centroids?) along the above curve?
> How do I map this set S into a discrete set D ?
What is the definition of the discrete set D?
> And how do I calculate the probability of any discrete vector in D?
Exactly the same way you calculate the that probability someone would understand what you were asking...
> Thanks...
for what?
Reply by John December 3, 20052005-12-03
Hi

I have a 10-dimensional vector v(t)=(C1(t),C2(t),......,C10(t)) where Cj(t) 
is between 0 and pi for any t.

I let t run from t=0 to t=T and get a set S of vectors 
S={v(0),v(1),.....,v(T)}

How do I map this set S into a discrete set D ?

And how do I calculate the probability of any discrete vector in D?

Thanks...