prof. ram and i
DESCRIPTION
Prof. Ram and I. By Shashi Shekhar (not Sushi Shekhar!) May 6 th , 2006. Good teachers describe, better teachers explain, and the best teachers inspire !. Graduate School- Berkeley (‘85-89). Four years of inspiration From Summer 1986 IEEE Computer special issue (by Prof. Wah) - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/1.jpg)
Prof. Ram and I
By
Shashi Shekhar
(not Sushi Shekhar!)
May 6th, 2006
![Page 2: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/2.jpg)
Good teachers describe,
better teachers explain,
and the best teachers inspire!
![Page 3: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/3.jpg)
Graduate School- Berkeley (‘85-89)
• Four years of inspiration– From Summer 1986
• IEEE Computer special issue (by Prof. Wah)
– To Dec. 1989 – Graduation!• Advice on comparing job offers
• 1988 – Ph.D. Oral Exam.– Feedback: Thesis opens a new research area– Education on structure of scientific revolutions!– Inspired me to explore new areas
![Page 4: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/4.jpg)
Spatial Data Mining - Example
Nest locationsDistance to open water
Vegetation durability Water depth
![Page 5: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/5.jpg)
Implication of Auto-correlation
Classical Linear Regression Low
Spatial Auto-Regression High
Name ModelClassification Accuracy
εx βy
εxβWyy ρ
framework spatialover matrix odneighborho -by- :
parameter n)correlatio-(auto regression-auto spatial the:
nnW
SSEnn
L 2
)ln(
2
)2ln(ln)ln(
2WI
Computational Challenge: Computing determinant of a very large matrix in the Maximum Likelihood Function:
![Page 6: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/6.jpg)
Graduate School- Berkeley (‘85-89)
• A new family in a new land• Great traditions to teach value of human relationships
– Garduation parties, post project-review lunches– La Vals, Anchor Steam beer and pizza
• Inspiration and encouragement to excel– Earn respect of scholars by addressing their questions– Not be afraid of starting a new area– Choose problems, which are important to society, even if not easy
to solve!
![Page 7: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/7.jpg)
Evacuation Route Planning - Motivation
No coordination among local plans means Traffic congestions on all highways e.g. 60 mile congestion in Texas (2005)
Great confusions and chaos
"We packed up Morgan City residents to evacuate in the a.m. on the day that Andrew hit coastal Louisiana, but in early afternoon the majority came back home. The traffic was so bad that they couldn't get through Lafayette." Mayor Tim Mott, Morgan City, Louisiana ( http://i49south.com/hurricane.htm )
Florida, Lousiana (Andrew, 1992)
( www.washingtonpost.com)
( National Weather Services) ( National Weather Services)
( FEMA.gov)
I-45 out of Houston
Houston
(Rita, 2005)
![Page 8: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/8.jpg)
A Real Scenario
Nuclear Power Plants in Minnesota
Twin Cities
![Page 9: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/9.jpg)
Monticello Emergency Planning Zone
Monticello EPZSubarea Population2 4,675 5N 3,9945E 9,6455S 6,7495W 2,23610N 39110E 1,78510SE 1,39010S 4,616 10SW 3,40810W 2,35410NW 707Total 41,950
Estimate EPZ evacuation time: Summer/Winter (good weather): 3 hours, 30 minutesWinter (adverse weather): 5 hours, 40 minutes
Emergency Planning Zone (EPZ) is a 10-mile radius around the plant divided into sub areas.
Data source: Minnesota DPS & DHS Web site: http://www.dps.state.mn.us
http://www.dhs.state.mn.us
![Page 10: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/10.jpg)
A Real World Testcase
Source cities
Destination
Monticello Power Plant
Routes used only by old plan
Routes used only by result plan of capacity constrained routing
Routes used by both plans
Congestion is likely in old plan near evacuation destination due to capacity constraints. Our plan has richer routes near destination to reduce congestion and total evacuation time.
Twin Cities
Experiment Result
Total evacuation time:
- Existing Plan: 268 min.
- New Plan: 162 min.
![Page 11: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/11.jpg)
Professional Service and Recognitions
• 1996-2000 – Editor, IEEE Trans. On KDE– Prof. Ram inspired us as the founding EIC
• 2002 – Book – “Spatial Databases: A Tour”, Prentice Hall– Survey paper in 1999 IEEE TKDE spl. issue honoring Prof. Ram
• 2003 – EIC – Geoinformatica Journal (Springer)– Lesson about major rivers have contributing rivers
• 2003 – IEEE Fellow – Encouragement, guidance and recommendation
• 2004 – Mapping Science Committee,– National Research Council (National Academy of Science)
![Page 12: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/12.jpg)
C. S. Faculty, U of Minnesota (1989- …)
• Recommendation, Guidance– Dec. 1989 – Joined as an Asst. Prof.– 1995 – Tenure, Associate Prof.– 2001 - Professor– 2005 – Distinguished University Professor
• Fall 2005 – Director, Army High Performance Computing Research Center– Encourage involvement in Minnesota Supercomputing research
![Page 13: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/13.jpg)
Army High Performance Computing Center
Nanoscience & Engineering
Computational
Electromagnetics
EnablingTechnology
And ComputationalAlgorithms
Chemical
Biological
Defense
Projectile
Target
Interaction
Leading HPC Research to support Army’s science and tech. goals Computational methods = Third leg of modern science (w/ theory and experiments)
Bring to life theoretical models of phenomena too complex, costly, hazardous, vast or
small for experiments
![Page 14: Prof. Ram and I](https://reader036.vdocument.in/reader036/viewer/2022062315/5681574c550346895dc4eea3/html5/thumbnails/14.jpg)
Prof. Ram,
Thank you for the
Inspiration, Guidance and Kindness
over last two decades!
Happy 80th Birthday!