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Williams, John H., Jr. | 3 |
Baker, F. T. | 1 |
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Williams, John H., Jr. – 1966
A series of experiments was performed to investigate the effectiveness and utility of automatically classifying documents through the use of multiple discriminant functions. Classification is accomplished by computing the distance from the mean vector of each category to the vector of observed frequencies of a document and assigning the document…
Descriptors: Automation, Classification, Content Analysis, Discriminant Analysis
Baker, F. T.; Williams, John H., Jr. – 1968
To support studies in automatic indexing, classification and extracting, a general purpose frequency program was developed to further theoretical and practical understanding of text word distributions. While the program is primarily designed for counting strings of character-oriented data, it can be used without change for counting any items which…
Descriptors: Abstracting, Automation, Classification, Computer Programs
Williams, John H., Jr. – 1971
The report very briefly summarizes the research performed during the contract period March 1, 1964, to February 28, 1971. The emphasis of the research was on the discovery and development of techniques for automatically indexing and classifying documents. The research was limited to statistical techniques rather than semantic or syntactic. A…
Descriptors: Abstracting, Automatic Indexing, Classification, Documentation