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  • 2015-2019  (2)
  • 1900-1904  (4)
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  • 1
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    Presolve Reductions in Mixed Integer Programming (2019)
    Details
    Publikationsdatum: 2021-08-05
    Beschreibung: Mixed integer programming has become a very powerful tool for modeling and solving real-world planning and scheduling problems, with the breadth of applications appearing to be almost unlimited. A critical component in the solution of these mixed-integer programs is a set of routines commonly referred to as presolve. Presolve can be viewed as a collection of preprocessing techniques that reduce the size of and, more importantly, improve the ``strength'' of the given model formulation, that is, the degree to which the constraints of the formulation accurately describe the underlying polyhedron of integer-feasible solutions. As our computational results will show, presolve is a key factor in the speed with which we can solve mixed-integer programs, and is often the difference between a model being intractable and solvable, in some cases easily solvable. In this paper we describe the presolve functionality in the Gurobi commercial mixed-integer programming code. This includes an overview, or taxonomy of the different methods that are employed, as well as more-detailed descriptions of several of the techniques, with some of them appearing, to our knowledge, for the first time in the literature.
    Sprache: Englisch
    Materialart: article , doc-type:article
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    OPUS
  • 2
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    Presolve Reductions in Mixed Integer Programming (2016)
    Details
    Publikationsdatum: 2021-08-05
    Beschreibung: Mixed integer programming has become a very powerful tool for modeling and solving real-world planning and scheduling problems, with the breadth of applications appearing to be almost unlimited. A critical component in the solution of these mixed-integer programs is a set of routines commonly referred to as presolve. Presolve can be viewed as a collection of preprocessing techniques that reduce the size of and, more importantly, improve the ``strength'' of the given model formulation, that is, the degree to which the constraints of the formulation accurately describe the underlying polyhedron of integer-feasible solutions. As our computational results will show, presolve is a key factor in the speed with which we can solve mixed-integer programs, and is often the difference between a model being intractable and solvable, in some cases easily solvable. In this paper we describe the presolve functionality in the Gurobi commercial mixed-integer programming code. This includes an overview, or taxonomy of the different methods that are employed, as well as more-detailed descriptions of several of the techniques, with some of them appearing, to our knowledge, for the first time in the literature.
    Sprache: Englisch
    Materialart: reportzib , doc-type:preprint
    Format: application/pdf
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    OPUS
  • 3
    Digitale Medien
    Digitale Medien
    AN INTRODUCTION TO CHEMICAL ANALYSIS, FOR STUDENTS OF MEDICINE, PHARMACY AND DENTISTRY. (1902)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 24 (1902), S. 287-287 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja02017a027
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    A LABORATORY GUIDE IN ELEMENTARY BACTERIOLOGY (1902)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 24 (1902), S. 595-596 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja02020a020
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    facet.materialart.
    Unbekannt
    The Gathering of the Storm (1900)
    Boston, Mass., etc. : Periodicals Archive Online (PAO)
    The North American Review. 171:2 (1900:Aug.) 208 
    Details
    ISSN: 0029-2397
    Thema: Anglistik, Amerikanistik , Geschichte
    Notizen: THE CRISIS IN CHINA
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:3197-1900-171-02-000006
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 6
    Digitale Medien
    Digitale Medien
    Ueber Anthrachinon-α-sulfosäuren (1904)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 37 (1904), S. 66-72 
    Details
    ISSN: 0365-9496
    Schlagwort(e): Chemistry ; Inorganic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/cber.19040370114
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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