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| Journal of Chemical… | 3 |
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Peer reviewedHansen, Inge Berg – Journal of Chemical Documentation, 1972
Analysis of the distribution of relevant answers to 41 search profiles among the 80 subject sections of Chemical Abstracts" revealed that the average profile requires 10 CA-subject sections for adequate coverage. The average printing expense could be reduced 25 percent by searching the individual profiles in the appropriate subject sections. (5…
Descriptors: Computer Programs, Data Processing, Information Retrieval, Information Services
Peer reviewedRoberts, Anita B.; And Others – Journal of Chemical Documentation, 1972
The experiences in developing current awareness services for selective dissemination of information from Chemical Abstracts'' Condensates data base are described. File standardization, the weighted-term method of searching, and the algorithm used to perform the search on the CDC 6600 computer and a user survey are discussed. (2 references)…
Descriptors: Algorithms, Computer Oriented Programs, Data Processing, Information Dissemination
Peer reviewedDeforeit, Huguette; And Others – Journal of Chemical Documentation, 1972
A computer system, named CORA, has been devised for coding chemical structures by fragmentation elements. It has been used to encode Markush formulas in patents according to the Ring codes used in the Ringdoc and Pestdoc services and results in an easy, speedy, reliable and inexpensive method. (4 references) (Author)
Descriptors: Chemistry, Computer Oriented Programs, Data Processing, Information Processing
