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  • Articles  (3)
  • data processing  (3)
  • 2010-2014
  • 1990-1994
  • 1980-1984
  • 1970-1974  (3)
  • 1925-1929
  • 1974  (3)
  • Geosciences  (3)
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  • Articles  (3)
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  • 2010-2014
  • 1990-1994
  • 1980-1984
  • 1970-1974  (3)
  • 1925-1929
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  • 1
    Electronic Resource
    Electronic Resource
    Some considerations in management of computer-processable files of geological data (1974)
    Springer
    Mathematical geology 6 (1974), S. 291-310 
    Details
    ISSN: 1573-8868
    Keywords: data processing ; general geology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract Many sets of data in the natural sciences have a hierarchical structure that is either inherent in the data or that is imposed on them during collection. These data structures can be defined using mathematical set-theory notation. If data from two or more computer-processable files are accessed simultaneously, the application of operations of set union and intersection leads to emergence of certain criteria which must be adhered to when managing data files using a generalized, database management system. One of the situations in which these principles come into play is illustrated by the merging of two computer-processable files of geotechnical data, the data for both files having been derived from the same source but structured differently.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02082353
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Use of multivariate statistical methods in data-base maintenance (1974)
    Springer
    Mathematical geology 6 (1974), S. 47-57 
    Details
    ISSN: 1573-8868
    Keywords: data processing ; multivariate statistics ; economic geology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract Multivariate statistical methods may be used to enhance large data bases by predicting missing information and verifying unchecked data vectors. In addition, new techniques may be used for exploratory purposes to investigate the interrelationships between variables. The techniques are being applied successfully in coal mining.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02111926
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  • 3
    Electronic Resource
    Electronic Resource
    Paleocurrent analysis of sedimentary crossbed data with graphic output using three integrated computer programs (1974)
    Springer
    Mathematical geology 6 (1974), S. 353-362 
    Details
    ISSN: 1573-8868
    Keywords: data processing ; paleocurrent directions ; basin analysis ; orientation statistics ; computer graphics ; sedimentology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract Basin analysis for paleocurrent directions commonly makes use of hundreds of cross-bedding dip and strike measurements taken on structurally tilted sedimentary beds which may be parts of plunging folds. For regional interpretations the desired forms of data are vector means and rose diagrams of dip directions after reduction to the assumed horizontal plane of deposition. Three FORTRAN computer programs have been integrated to perform the data reduction from raw field measurements to graphic plotted rose diagrams. Program PLUNGR rotates the raw field data back to the original horizontal plane of deposition. Output from PLUNGR is a deck of punched cards suitable for input into the second and third programs, with provision for various regroupings of data. VECMEN computes vector mean and other statistics on data groups defined by inserted control cards. Program ROSE, with a variety of options, plots a rose diagram of dip direction azimuths on a CalComp plotter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02082356
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