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anorm problem about step_rel and step_ #57
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Thanks for your question!
We used 1/L_2 of difference in distance to represent on the relationship
between the agents. If agents are far away it will have a vey small weight
and the closer the bigger the value of the relationship becomes. The
special case when the L_2 is zero, so 1/0 = inf = the strongest
relationship. We set this case to be 0, the reason behind this selection
that setting any value beside 0 for this situation as I recall lead to a
degraded performance. Reflecting on this, it’s like two persons walking in
parallel next to each other which can be seen globally as a one entity. So,
setting to 0 allowed us to disentangle this special case and treating it as
a single entity in concept even though they are several entities.
I hope this helps. Feel free to contact me if you have any questions.
Best,
Abduallah
On Thu, Mar 10, 2022 at 12:05 AM Ian-Shih ***@***.***> wrote:
I have seen #15
<#15>, but I
still can't understand it. If people A and B don't move, both their
step_rel=(0,0), use step_rel to calculate L2 distance means that A and B
are closest? Because (0-0)^2+(0-0)^2=0 .
My English is bad if you don't know what I ask, please let me know, thanks.
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------------------------------------------
Abduallah Mohamed
abduallahmohamed.com
|
Thanks for your reply, but I don't focus on being 0 or not being 0. Maybe my bad example made you confused. Let me show another example: |
I agree with you that step_ might be better than step_rel but the results says otherwise. |
OK, I'll try more ideas about this issue. Thank you. |
I have seen #15, but I still can't understand it. If people A and B don't move, both their step_rel=(0,0), use step_rel to calculate L2 distance means that A and B are closest? Because (0-0)^2+(0-0)^2=0 . I don't think the distance about velocity has a physical meaning .
My English is bad if you don't know what I ask, please let me know, thanks.
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