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The aim of the annual Workshop on Algorithm Engineering and Experiments (ALENEX)istoprovideaforumforthepresentationoforiginalresearchinthe implementationandexperimentalevaluationofalgorithmsanddatastructures. ALENEX2001,thethirdintheseries,washeldinWashington,DC,onJanuary 5 6, 2001. This volume collects extended versions of the 15 papers that were selected for presentation from a pool of 31 submissions. It also includes the abstracts from the three invited speakers, who were supported by DIMACS SpecialFocusonNextGenerationNetworks. Wewouldliketotakethisopportunitytothankthesponsors,authors,and reviewers that made ALENEX 2001 a success. We would also like to thank Springer-Verlag for publishing these papers in their series ofLecture Notes in ComputerScience. June2001 AdamBuchsbaum JackSnoeyink ALENEX2001Sponsors Thefollowingprovideddirect?nancialsupport,whichenabledustohostinvited speakersandprovidereducedregistrationfeestostudents. DIMACSSpecialFocusonNextGenerationNetworks TheHopkinsCenterforAlgorithmEngineering NECResearchInstitute Thefollowingprovidedin-kindsupport,facilitatingtheworkshop. AT&T SIAM,theSocietyforIndustrialandAppliedMathematics SIGACT,theACMSIGonAlgorithmsandComputationTheory ALENEX2001ProgramCommittee NinaAmenta,(UniversityofTexas,Austin) AdamBuchsbaum,(AT&TLabs Research;Co-chair) RudolfFleischer,(HongKongUniversityofScience&Technology) LyleMcGeoch,(AmherstCollege) S. Muthukrishnan,(AT&TLabs Research) JackSnoeyink,(UniversityofNorthCarolina,ChapelHill;Co-chair) MattStallmann(NorthCarolinaStateUniversity) DorotheaWagner(Universit atKonstanz) VI Preface ALENEX 01ExternalReviewers SunilArya RolfDrechsler MarinaPapatrianta?lou LydiaAyers LeszekGasieniec FrankSchulz ThereseBiedl Ra?aeleGiancarlo MichaelSeel UlrikBrandes RobertoGrossi JopSibeyn FrancBrglez DavidJohnson RobertoSolis-Oba KenClarkson JuhaK arkk ainen ThomasWillhalm SabineCornelsen BernardMoret ALENEXSteeringCommittee RobertoBattiti(UniversityofTrento,Italy) AndrewV. Goldberg(IntertrustSTARLab) MichaelT. Goodrich(JohnsHopkinsUniversity) DavidS. Johnson(AT&TBellLaboratories) CatherineC. McGeoch(AmherstCollege) BernardM. E. Moret(UniversityofNewMexico,chair) TableofContents ALENEX 01 Solvinga Hard ProblemtoApproximatean Easy One:Heuristicsfor MaximumMatchingsandMaximumTravelingSalesmanProblems. . . . . . . 1 S. P. Fekete (TU Berlin), H. Meijer (Queen s University), A. Rohe (Universit atBonn),andW. Tietze(TUBerlin) CNOP APackageforConstrainedNetworkOptimization. . . . . . . . . . . . . 17 K. MehlhornandM. Ziegelmann(MPISaarbrucken) TheAsymmetricTravelingSalesmanProblem: Algorithms,InstanceGenerators,andTests. . . . . . . . . . . . . . . . . . . . . . . . . . . 32 J. Cirasella (Boston Arch. Center Library), D. S. Johnson (AT&T), L. A. McGeoch,(AmherstCollege),andW. Zhang(WUSTL) NetworkTomographythroughEnd-to-EndMeasurements . . . . . . . . . . . . . . 60 D. Towsley(UMass. ,Amherst) ExperimentalResultsonStatisticalApproaches toPageReplacementPolicies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 V. Leung (Sandia National Laboratories) and S. Irani (University of California,Irvine) EstimatingResemblanceofMIDIDocuments. . . . . . . . . . . . . . . . . . . . . . . . . . 78 M. MitzenmacherandS. Owen(Harvard) ExperimentsonAdaptiveSetIntersectionsforTextRetrievalSystems. . . . 91 E. D. Demaine(UWaterloo),A. L opez-Ortiz(Univ. ofNewBrunswick), andJ. I. Munro(UWaterloo) PVD:AStableImplementationforComputingVoronoiDiagrams ofPolygonalPockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 S. Sethia,M. Held,andJ. S. B. Mitchell(SUNYStonyBrook) HierarchicalClusteringofTrees:AlgorithmsandExperiments. . . . . . . . . . . 117 I. FinocchiandR. Petreschi(Universit`adiRoma LaSapienza ) TravelPlanningwithSelf-MadeMaps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 U. Brandes, F. Schulz, D. Wagner, and T.
List of contents
ALENEX'01.- Solving a "Hard" Problem to Approximate an "Easy" One: Heuristics for Maximum Matchings and Maximum Traveling Salesman Problems.- CNOP - A Package for Constrained Network Optimization.- The Asymmetric Traveling Salesman Problem: Algorithms, Instance Generators, and Tests.- Network Tomography through End-to-End Measurements.- Experimental Results on Statistical Approaches to Page Replacement Policies.- Estimating Resemblance of MIDI Documents.- Experiments on Adaptive Set Intersections for Text Retrieval Systems.- PVD: A Stable Implementation for Computing Voronoi Diagrams of Polygonal Pockets.- Hierarchical Clustering of Trees: Algorithms and Experiments.- Travel Planning with Self-Made Maps.- New Algorithmic Challenges Arising in Measurement-Driven Networking Research.- A Probabilistic Spell for the Curse of Dimensionality.- Experimental Evaluation of the Height of a Random Set of Points in a d-Dimensional Cube.- An Empirical Study of a New Approach to Nearest Neighbor Searching.- Spectral Analysis for Data Mining.- Trade Off Between Compression and Search Times in Compact Suffix Array.- Implementation of a PTAS for Scheduling with Release Dates.- Biased Skip Lists for Highly Skewed Access Patterns.
