Tata Institute of Fundamental Research
Approximate Shortest Descent Path on a Terrain
Seminar
Speaker:
Sasanka Roy
Indian Institute of Science
Bangalore 560012
http://www.csa.iisc.ernet.in/people/people-postdoc.php
Date:
Tuesday, 25 Aug 2009 (all day)
Venue:
A-212 (STCS Seminar Room)
(Scan to add to calendar)
Abstract:
A path from $s$ to $t$ on a polyhedral terrain is descending if the height of a point $p$ never increases while we move p along the path from $s$ to $t$. No efficient algorithm is known to find a shortest descending path (SDP) from $s$ to $t$ in a polyhedral terrain. We will discuss the pros and cons for finding the optimum path on general terrains and finally discuss an approximation algorithm that solve the SDP problem on general terrains. Our algorithm is simple, robust and easy to implement.
| Speaker: | Sasanka Roy Indian Institute of Science Bangalore 560012 http://www.csa.iisc.ernet.in/people/people-postdoc.php |
| Date: | Tuesday, 25 Aug 2009 (all day) |
| Venue: | A-212 (STCS Seminar Room) |
(Scan to add to calendar)
Abstract:
A path from $s$ to $t$ on a polyhedral terrain is descending if the height of a point $p$ never increases while we move p along the path from $s$ to $t$. No efficient algorithm is known to find a shortest descending path (SDP) from $s$ to $t$ in a polyhedral terrain. We will discuss the pros and cons for finding the optimum path on general terrains and finally discuss an approximation algorithm that solve the SDP problem on general terrains. Our algorithm is simple, robust and easy to implement.