Descriptor
Source
| Information Storage and… | 9 |
Author
| De Heer, T. | 1 |
| Dillon, Martin | 1 |
| Farradane, J. | 1 |
| Gray, W. A. | 1 |
| Jacquesson, Alain | 1 |
| Prywes, Noah S. | 1 |
| Schieber, William D. | 1 |
| Scott, E. J. | 1 |
| Sparck Jones, Karen | 1 |
| Tell, Bjorn V. | 1 |
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Farradane, J.; And Others – Information Storage and Retrieval, 1973
The use of a structured system of storing information, particularly relational indexing, can lead to situations in which items would not be retrieved due to technicalities of the system. To overcome such problems a study was made of condensations with the aim of providing a series of rules to apply. (4 references) (Author/SJ)
Descriptors: Indexing, Information Retrieval, Information Storage, Relevance (Information Retrieval)
Tell, Bjorn V. – Information Storage and Retrieval, 1971
Three experiments were made by a flexible machine search system to test the retrieval efficiency of searching free text and keywords. Results based upon relevance judgements of users indicate that titles and abstracts are good index material which can be used for machine searching without human indexing. (Author/SJ)
Descriptors: Automation, Indexing, Information Retrieval, Keywords
De Heer, T. – Information Storage and Retrieval, 1974
Use of syntactic trace as an access strategy for large files containing arbitrary languages for which thesaurus-based and multiple attribute search techniques are unsuitable. (LS)
Descriptors: Indexing, Information Retrieval, Information Storage, Mathematical Models
Dillon, Martin – Information Storage and Retrieval, 1974
An experiment in superficial indexing was carried out to elaborate the contract between indexing with a controlled vocabulary and using automated methods as described by Salton. (Author)
Descriptors: Comparative Analysis, Indexing, Information Retrieval, Thesauri
Scott, E. J.; And Others – Information Storage and Retrieval, 1971
The results showed that the selection criteria laid down by Drugdoc are strictly adhered to; the mean time of alerting of an article is 11.3 weeks after receipt of the journal, and all articles from a particular journal issue are reported by Drugdoc on average within 13.6 weeks. (3 references) (Author/MM)
Descriptors: Evaluation, Indexing, Information Services, Relevance (Information Retrieval)
Sparck Jones, Karen – Information Storage and Retrieval, 1973
The logic of different types of weighting are discussed, and experiments testing weighting schemes of these types are described. The results show that one type of weighting leads to material performance improvements in quite different collection environments. (22 references) (Author)
Descriptors: Automatic Indexing, Classification, Indexing, Information Retrieval
Jacquesson, Alain; Schieber, William D. – Information Storage and Retrieval, 1973
An experiment to compute and analyze the degree of association between descriptors used to index a document collection of approximately 40,000 records is described. An analysis of the results is presented which indicates the difficulties inherent in applying the results to an operating system. (11 references) (Author)
Descriptors: Association Measures, Documentation, Indexing, Information Retrieval
Gray, W. A. – Information Storage and Retrieval, 1971
The technique described enables an on line computer based information retrieval system to aid indexers by selecting possible indexing terms to be assigned to a new document entering the system. The economic aspect of implementing the technique in a working information retrieval system is considered. (16 references) (Author/MM)
Descriptors: Automatic Indexing, Cost Effectiveness, Indexing, Information Systems
And Others; Prywes, Noah S. – Information Storage and Retrieval, 1974
Reports on a series of programs that have been developed to process data bases, consisting of textual items, and to index and arrange (classify) the data items in accordance with an automatically generated classification system. (Author)
Descriptors: Automatic Indexing, Automation, Classification, Computer Programs
