?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F4893%2F&rft.title=Optimization-Based+Analysis+of+a+Simplified+Ozone+Model&rft.creator=Bialon%2C+P.M.&rft.description=This+paper+describes+the+development+of+a+software+optimization+tool+that+aims+at+finding+the+optimal+strategy+for+decreasing+the+ozone+concentration+in+Europe.+A+simplified+ozone+model+has+been+used+in+the+research.+This+model+describes+the+relations+between+reductions+of+certain+industry+pollutants+and+the+resulting+ozone+concentration+abatement%2C+as+well+as+the+costs+associated+with+given+emission+reductions.+The+task+of+finding+the+most+cost-effective+strategy+results+in+a+difficult+nonlinear+problem+comprising+thousands+of+variables+and+constraints.+Moreover%2C+other+difficulties+can+arise%2C+such+as+issues+connected+with+problem+conditioning+and+solution+sensitivity+to+parameter+changes.+These+potential+difficulties+lead+to+the+question+of+software+robustness.+It+was+decided+to+apply+three+different+optimization+algorithms+in+order+to+ensure+that+the+tool+would+be+able+to+solve+different+optimization+problems+generated+during+different+scenario+analyses.+The+task+of+joining+three+different+nonlinear+solvers+(CFSQP%2C+Conopt%2C+and+MINOS)+with+completely+different+interfaces+also+turned+out+to+be+interesting+from+the+software-engineering+point+of+view.+The+object-oriented+programming+technique+provided+a+simple+way+to+divide+the+software+parts+into+those+that+were+common+to+all+three+solvers+and+those+that+were+solver-specific.+The+model+and+the+methodological+and+engineering+difficulties+in+its+analysis+are+summarized+in+this+paper.+The+paper+also+contains+a+description+of+the+software+tool+developed%2C+as+well+as+conclusions+and+further+suggestions+motivated+by+the+first+results.&rft.publisher=WP-96-134&rft.date=1996-11&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=text&rft.language=en&rft.identifier=https%3A%2F%2Fpure.iiasa.ac.at%2Fid%2Feprint%2F4893%2F1%2FWP-96-134.pdf&rft.identifier=++Bialon%2C+P.M.+%3Chttps%3A%2F%2Fpure.iiasa.ac.at%2Fview%2Fiiasa%2F1150.html%3E++(1996).++Optimization-Based+Analysis+of+a+Simplified+Ozone+Model.+++IIASA+Working+Paper.+IIASA%2C+Laxenburg%2C+Austria%3A+WP-96-134+++++