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  • × year_i:[1980 TO 1990}
  • × author_ss:"O'Neill, E.T."
  1. O'Neill, E.T.; Dillon, M.; Vizine-Goetz, D.: Class dispersion between Library of Congress Classification and the Dewey Decimal Classification (1987) 0.00 
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    Abstract
    Two measures are examined that characterize the dispersion of a classification system when mapped to a second classification. One, a distance measure, captures the physical spread of a class when represented in the secon system; the second, from rank-frequency-analysis, characterizes the scatter of tokens over a set of types. The measures are tested by applying them to the library science portions of the LCC and the DDC using a database drawn from MARC records. Class mappings are presented that exemplify four extreme points of the two measures considered together: mappings where both measures score high, mappings where both score low, and mappings where one measure is high and the other is low. The conclusion is that the measures characterize two different properties of dispersion
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  2. O'Neill, E.T.; Vizine-Goetz, D.: Quality control in online databases (1989) 0.00 
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  3. O'Neill, E.T.; Aluri, R.: Library of Congress Subject Heading patterns in OCLC monographic records (1981) 0.00 
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