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  • 1
    Electronic Resource
    Electronic Resource
    A mathematical programming approach to a problem in variance penalised Markov decision processes (1994)
    Springer
    OR spectrum 15 (1994), S. 225-230 
    Details
    ISSN: 1436-6304
    Keywords: Markov decision processes ; ɛ-optimal ; variance ; Markov'sche Entscheidungsprozesse ; ɛ-Optimalität ; Gewinnvarianz
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Description / Table of Contents: Zusammenfassung In dieser Arbeit geben wir drei Algorithmen zur Lösung eines stochastischen dynamischen Problems an. Dabei wird ein optimaler Ausgleich zwischen erwartetem Gewinn und Gewinnvarianz pro Zeiteinheit gesucht. Die Algorithmen liefern für beliebigesɛ〉0 jeweilsɛ-optimale Lösungen.
    Notes: Abstract In this paper we present three algorithms for solving a problem in which it is required to get an optimal compromise between the average expected reward per unit time and the variance of the reward per unit time. The algorithms lead to anɛ-optimal solution, whereɛ〉0 is arbitrary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01719453
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    Paper (German National Licenses)
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  • 2
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    Columbia Accident Investigation Board Report. Volume Two (2003)
    In:  Other Sources
    Details
    Publication Date: 2019-07-10
    Description: Volume II of the Report contains appendices that were cited in Volume I. The Columbia Accident Investigation Board produced many of these appendices as working papers during the investigation into the February 1, 2003 destruction of the Space Shuttle Columbia. Other appendices were produced by other organizations (mainly NASA) in support of the Board investigation. In the case of documents that have been published by others, they are included here in the interest of establishing a complete record, but often at less than full page size. Contents include: CAIB Technical Documents Cited in the Report: Reader's Guide to Volume II; Appendix D. a Supplement to the Report; Appendix D.b Corrections to Volume I of the Report; Appendix D.1 STS-107 Training Investigation; Appendix D.2 Payload Operations Checklist 3; Appendix D.3 Fault Tree Closure Summary; Appendix D.4 Fault Tree Elements - Not Closed; Appendix D.5 Space Weather Conditions; Appendix D.6 Payload and Payload Integration; Appendix D.7 Working Scenario; Appendix D.8 Debris Transport Analysis; Appendix D.9 Data Review and Timeline Reconstruction Report; Appendix D.10 Debris Recovery; Appendix D.11 STS-107 Columbia Reconstruction Report; Appendix D.12 Impact Modeling; Appendix D.13 STS-107 In-Flight Options Assessment; Appendix D.14 Orbiter Major Modification (OMM) Review; Appendix D.15 Maintenance, Material, and Management Inputs; Appendix D.16 Public Safety Analysis; Appendix D.17 MER Manager's Tiger Team Checklist; Appendix D.18 Past Reports Review; Appendix D.19 Qualification and Interpretation of Sensor Data from STS-107; Appendix D.20 Bolt Catcher Debris Analysis.
    Keywords: Astronautics (General)
    Type: PB2004-100867
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Columbia Accident Investigation Board Report. Volume Three (2003)
    In:  Other Sources
    Details
    Publication Date: 2019-07-10
    Description: The Columbia Accident Investigation Board's (CAIB) independent investigation into the February 1, 2003 destruction of the Space Shuttle Columbia produced a six volume report. This is Volume III of the report. Volume III contains other technical documents produced by NASA and other organizations, which were provided to the CAIB in support of its inquiry into the tragedy. Technical documents included in the report are: Appendix E.1 CoFR Endorsements; Appendix E.2 STS-107 Image Analysis Team Final Report; Appendix E.3 An Assessment of Potential Material Candidates for the 'Flight Day 2', Radar Object Observed during the NASA Mission STS-107; Appendix E.4 Columbia Early Sighting Assessment Team Final Report.
    Keywords: Astronautics (General)
    Type: PB2004-100868
    Format: text
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    NASA TECHNICAL REPORTS
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