Chemical Literature, Volume 19, Number 1, Spring 1967 Page: 8
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grammatical construction and of the natural structure of the data in providing
inbuilt signals to the computer to allow automatic case and face changes. These
techniques supplemented by a simplified keyed-flagging and a mnemonic code
system permits new keyboarding personnel to become productive quickly. The
computer's manipulative power combined with the CAS input system permits a very
large reduction in the repetitive keyboarding processes normally associated with
an information publication program which includes abstracts supported by multiple,
diversified indexes. Moreover, the input data, expanded to full detail consistent
with the source documents and formatted for storage by the computer, provides an
ideal base for programmed search used in information retrieval processes. The
stored data can be automatically translated into character sets of equivalent or
lesser detail which are commonly used in local computer output systems. Details
of the keyboarding system will be presented.
16. DOCUMENTATION OF CHEMICAL REACTIONS BY COMPUTER ANALYSIS OF STRUCTURAL CHANGES
J.E.Armitage, P.N.Evans, M.F.Lynch and J.A.McGuirk, Postgraduate School of
Librarianship, University of Sheffield, England.
A general algorithm and a set of computer programs for the detection of1similarities
among chemical compounds are at present under development at Sheffield . The purpose
of these is the determination of the largest connected set of atoms and bonds common
to any pair of chemical structures, i.e., the structural similarity of the pair.
The method involves an iterative procedure in which straight chains, simple rings,
and combinations of these are developed by computer from topological descriptions of
the compounds, starting with the atoms of each, and progressing by increasing the
fragment size by one atom at a time. At each stage of growth, the fragments from each
structure are compared with those from the other; only common fragments are retained
for further growth. The analysis is followed by synthesis of the complex fragments
actually common to the two structures.
Computer programs for the analysis of pairs of acyclic compounds are described. The
application of this analysis to the identification of structural changes in the reactions
of acyclic compounds is discussed.
I. J.E.Armitage and M.F.Lynch, Automatic detection of structural similarities
among chemical compounds, J.Che..m. Soc .,(in press).
17. ARTICULATION IN THE GENERATION OF SUBJECT INDEXES BY COMPUTER
J.E.Armitage and M.F.Lynch, Postgraduate School of Librarianship,
The University, Sheffield, England .
A simple and logical model for the generation of subject indexes from title-like
phrases by computer is described, and its advantages and disadvantages discussed.
It is based on recent studies of the structure of articulated subject indexes such
as those to Chemical Abstracts . The model employs the prepositions and connectives
of phrases of simple structure to generate all forms of index entries that can be
derived from an indexing phrase. The material on which it operates consists of
indexing phrases prepared by human indexers. The phrases consist of words or word
strings which can act a subject headings, linked by prepositions and connectives.
Certain parts of speech, such as articles, infinitives and participles, must be
excluded.
Each subject heading in a phrase is selected in turn. The variant forms of the
modification which can follow the subject heading are generated; when the index is
compiled, one form of the modification is selected by sorting against all other entries
under that heading and taking those which result in the greatest coincidence of
initial significant words, so that maximum organization of the display is attained.
The technique is illustrated with part of an index to a recent abstracting journal.
The wide variety of controls which can be exerted by the indexer, the program, or
both, is discussed, as also preliminary programming work.
1. M.F.Lynch, Subject indexes and automatic document retrieval, J.Doc, 22, 167(1966).
18. THE B. F. GOODRICH INFORMATION RETRIEVAL SYSTEM AND AUTOMATIC INFORMATION
DISTRIBUTION USING COMPUTER-COMPILED THESAURUS AND DUAL-DICTIONARY. Paul J. Horvath,
B.F. Goodrich Chemical Co., Development Center, Avon Lake, Ohio 44012; Alice Yanosko
Chamis, B.F. Goodrich Company, Research Center, Brecksville, Ohio 44141; Robert F.
Carroll, Joyce Dlugos, B.F. Goodrich Chemical Co., Computer Department, Cleveland, Ohio
44115.
Staff from our Research Center and our Chemical Co. designed and developed our
B.F. Goodrich Information System. We used a common thesaurus. However, each locationhas its own dual-dictionary. We follow the EJC principles. Our thesaurus consists of
terms used in indexing our internal literature. Our GE-235 computer compares the index
terms with those already in the thesaurus. The terms accepted are those which match.
These are used as input to produce our dual-dictionary. We evaluate rejected terms when
updating the thesaurus. Our computer program also provides "Automatic Information
Distribution (AID)" to our personnel when their interest profiles match accepted index
terms. To retrieve information,from our dual-dictionary we manually coordinate the
terms of interest. We will use the computer for information retrieval when we decide
that the volume of our questions or literature justifies its use. The computer input
and operations for each component of our B. F. Goodrich Information System are
described.
19. A PRACTICAL REPORT SYSTEM FOR QUALITY CONTROL. David A. Mefford, Daniel R. Smith,
Robert 0. Beauchamp, Jr., John M. Mabon, A. H. Robins Company, Incorporated, 1407
Cummings Drive, Richmond, Virginia 23220
A technical information system has been designed for the storage and retrieval of
data handled in the A. H. Robins Company quality control laboratory. The information
which must be maintained on an operational basis in today's pharmaceutical chemical
laboratory, plus the detailed records needed for government reports, has been
compactly organized in machine-retrievable form. Physical and chemical data are
recorded on IBM cards which accompany each lot through the various stages of
processing. These cards now constitute a file for control information, and, in
addition, serve as the means for transferring data to the computer for storage from
the arrival of raw materials to the shipping out of final products. An added feature
of this system is the automatic print-out of certificates of analysis (product assays),
inventories, and other reports frequently requested by accounting, manufacturing, and
production planning personnel. The final result is a far more efficient.report system
for quality control, presently encompassing the control lab, production planning,
quarantine, manufacturing and packaging at the Richmond plant and its domestic and
international subsidiaries. It is anticipated that this system will be expanded to
include purchasing, receiving and shipping.
20. THE CHEMICAL AND RELATED TECHNICAL LITERATURE ON MIGRATORY WATERFOWL RESEARCH.
V. A. Adomaitis, H. K. Nelson, Northern Prairie Wildlife Research Center,
Bureau of Sport Fisheries and Wildlife, U.S. Department of the Interior,
Jamestown, North Dakota 58401.
The chemical facts significant in waterfowl research are found in various
English language periodicals ranging from those issued internationally and nationally
to those of regional and local origin. The ACS journals (e.g., J. Agr. Food
Chem.) and other well-known periodicals (e.g., J. Assoc. Offic. Anal. Chemists)
are mentioned only as to their specific applications. The following listing
stresses the chemical information available in a type of technical literature
generally considered "exotic" by chemists. Twelve particular periodicals are discussed
because they illustrate the overall nature of the chemical work being conducted.
The first group includes some of international and national importance:
Auk, Ecology, Fish and Wildlife Research Reports, Ibis, Journal of Wildlife Management,
Proceedings of the International Ornithological Congress, and Transactions of
the North American Wildlife and National Resources Conference. The second group
lists some of regional and local significance: California Fish and Game, New York
Fish and Game, Proceedings of the Annual Conference of the Southeastern Association
of Game and Fish Commissioners, and the Proceedings of the North Dakota Academy of
Science. Abstracts of research on migratory waterfowl are published in Wildlife
Review and its indices Wildlife Abstracts.
CHEMICAL LITERATURE does not selI preprints of papers.
Usually preprints may be obtained by writing authors or
purchased from the Division Photocopy secretary
Miss Judith Feltham
133 West Crescent Parkway
South Plainfield, N. J.00
cn
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American Chemical Society. Division of Chemical Literature. Chemical Literature, Volume 19, Number 1, Spring 1967, periodical, Spring 1967; Philadelphia, Pennsylvania. (https://digital.library.unt.edu/ark:/67531/metadc5714/m1/8/: accessed March 28, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .