Descriptor
| Algorithms | 2 |
| Computer Oriented Programs | 2 |
| Data Processing | 2 |
| Search Strategies | 2 |
| Information Dissemination | 1 |
| Information Retrieval | 1 |
| Information Services | 1 |
| Molecular Structure | 1 |
| Organic Chemistry | 1 |
| Use Studies | 1 |
Source
| Journal of Chemical… | 2 |
Author
| Figueras, John | 1 |
| Roberts, Anita B. | 1 |
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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 reviewedFigueras, John – Journal of Chemical Documentation, 1972
The set reduction algorithm is based on set theory and Boolean algebra rather than the graph-theoretic approach. Time trials with a small file of organic chemical structures indicate that the algorithm can be economically used for substructure (or complete structure) sequential searches on a file containing 30,000-50,000 computer-coded structures.…
Descriptors: Algorithms, Computer Oriented Programs, Data Processing, Information Retrieval
