Local Search for Planning and Scheduling

Alexander Nareyek

ISBN 10: 3540428984 / ISBN 13: 9783540428985

Editore: Springer Berlin Heidelberg, Springer Berlin Heidelberg Nov 2001, 2001

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Neuware -Thenextsetofarticlesdealwithplanningsystemsthatareabletoinc- porateresourcereasoning. The rstarticle,ofwhichIamtheauthor,makesit clearwhyconventionalplanningsystemscannotproperlyhandleplanningwith resourcesandgivesanoverviewoftheconstraint-basedExcaliburagent¿spl- ningsystem,whichdoesnothavetheserestrictions. Thenextthreearticlesare aboutNASAJPL¿sASPEN/CASPERsystem. The rstone¿byChien,Knight, andRabideaüfocusesonthereplanningcapabilitiesoflocalsearchmethods, presentingtwoempiricalstudiesinwhichacontinuousplanningprocessclearly outperformsarestartstrategy. Thenextarticle,byEngelhardtandChien,shows howlearningcanbeusedtospeedupthesearchforaplan. Thegoalisto nda setofsearchheuristicsthatguidethesearchaswellaspossible. Thelastarticle inthisblock¿byKnight,Rabideau,andChien¿proposesanddemonstrates, a technique for aggregating single search moves so that distant states can be reachedmoreeasily. VI Preface Thelastthreearticlesinthisbookaddresstopicsthatarenotdirectlyrelated tolocalsearch,butthedescribedmethodsmakeverylocaldecisionsduringthe search. RefanidisandVlahavasdescribeextensionstotheGRTplanner,e. g. ,a hill-climbingstrategyforactionselection. Theextensionsresultinmuchbetter performancethanwiththeoriginalGRTplanner. Thesecondarticle¿byO- india, Sebastia, and Marzal ¿ presents a planning algorithm that successively re nes a start graph by di erent phases, e. g. , a phase to guarantee comp- teness. Inthelastarticle,HiraishiandMizoguchipresentasearchmethodfor constructingaroutemap. Constraintswithrespecttomemoryandtimecanbe incorporatedintothesearchprocess. Iwishtoexpressmygratitudetothemembersoftheprogramcommittee, whoactedasreviewersfortheworkshopandthisvolume. Iwouldalsoliketo thank all those who helped to make this workshop a success ¿ including, of course,theparticipantsandtheauthorsofpapersinthisvolume. June2001 AlexanderNareyek WorkshopChair ProgramCommittee EmileH. L. Aarts PhilipsResearch Jos¿eLuisAmbite Univ. ofSouthernCalifornia BlaiBonet UniversityofSpringer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 184 pp. Englisch. Codice articolo 9783540428985

Dati bibliografici

Titolo: Local Search for Planning and Scheduling

Casa editrice: Springer Berlin Heidelberg, Springer Berlin Heidelberg Nov 2001

Data di pubblicazione: 2001

Legatura: Taschenbuch

Condizione: Neu

Descrizione articolo

Riassunto:

This book constitutes the thoroughly refereed post-proceedings of the International Workshop on Local Search for Planning and Scheduling, held at a satellite workshop of ECAI 2000 in Berlin, Germany in August 2000. The nine revised full papers presented together with an invited survey on meta-heuristics have gone through two rounds of reviewing and improvement. The papers are organized in topical sections on combinatorial optimization, planning with resources, and related approaches.

Contenuti:

Invited Paper.- Meta-heuristics: The State of the Art.- Combinatorial Optimization.- Solving the Sports League Scheduling Problem with Tabu Search.- Lagrange Multipliers for Local Search on Planning Graphs.- Planning with Resources.- Beyond the Plan-Length Criterion.- An Empirical Evaluation of the Effectiveness of Local Search for Replanning.- Board-Laying Techniques Improve Local Search in Mixed Planning and Scheduling.- Empirical Evaluation of Local Search Methods for Adapting Planning Policies in a Stochastic Environment.- Related Approaches.- The GRT Planner: New Results.- Incremental Local Search for Planning Problems.- Map Drawing Based on a Resource-Constrained Search for a Navigation System.