186x Filetype PPT File size 0.07 MB Source: www2.isye.gatech.edu
Cyberinfrastructure - Current Activities Operations Research: take 1 • Research 1. Repositories for implemented algorithms. Informs resource collection: > 100 packages and online programs 1. COIN - OR 2. NEOS Server 3. Specific algorithms e.g. Ye’s semidefinite opt code 2. Repositories for test problems. Informs resource: 25 instance sets & generators. 1. DIMACS combinatorial challenge sets 2. MIPLIB, LP test sets 3. Problem specific sets e.g. TSP,QAP,VRPTW. 3. Simulation tools: relatively few, often commercial-linked 4. Stat tools: several libraries and web-available routines Cyberinfrastructure - Current Activities Operations Research: take 1 • Education 1. Lecture notes for many courses 2. Tutorials on specialized topics • Implementation 1. Commercial optimization and modeling software 2. Commercial simulation software 3. Spreadsheet add-ins Cyberinfrastructure – Vision for DMII Operations Research- Take 1 • Research 1. Unified, robust algorithms. Make it the standard that researchers add to the repository. We would build more on each other’s work. Quality and development speed would increase. 2. Simulation building blocks 1. Modeling 2. Output analysis 3. Parameter search 3. Problem testbeds and instance generators. • Education and Implementation 1. More general modeling language, unifying CP, IP/LP, NLP. Cyberinfrastructure – Vision for DMII Operations Research- Take 2 What are the big opportunities in OR? Cyberinfrastructure – Vision for DMII Cyberinfrastructure Operations Research- Take 2 Claim: OR is unusual among science/engineering disciplines in that the applicability of present technology, as perceived internally, is 10-100 times the present level. What’s wrong? OR is about decision making, not just solving models. Old news… but CyberInfrastructure could increase the CyberInfrastructure applicability of OR by an order of magnitude.
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