NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 6 results Save | Export
Peer reviewed Peer reviewed
Craven, Timothy C. – Journal of the American Society for Information Science, 1982
Describes a system for the automatic coding of most descriptive titles which generates Nested Phrase Indexing System (NEPHIS) input strings of sufficient quality for permuted index production. A series of examples and an 11-item reference list accompany the text. (JL)
Descriptors: Algorithms, Automatic Indexing, Permuted Indexes
Craven, Timothy C. – Proceedings of the ASIS Annual Meeting, 1992
Describes research that investigated a method of automatically generating concept association maps that could be useful to abstractors. The use of word stems as concept surrogates, cooccurrence to define concept links, and a general-purpose graph-drawing algorithm is described; and results of evaluation of two link selection methods are reported.…
Descriptors: Abstracting, Algorithms, Automation, Computational Linguistics
Peer reviewed Peer reviewed
Craven, Timothy C. – Journal of Documentation, 1987
Describes a microcomputer-based string index format generated from concept networks using multiple search terms. Link weighting is highlighted as a method to decide which term appears first so the entry reflects the classification implied by the search specification. The computer software used for this system is briefly described. (Author/LRW)
Descriptors: Algorithms, Automatic Indexing, Classification, Computer Software
Peer reviewed Peer reviewed
Craven, Timothy C. – Journal of the American Society for Information Science, 1980
Proposes that error rates in indexing using string index languages such as NEPHIS might be reduced at relatively low cost by having the indexer enter strings via a microcomputer system which could provide simple validation and feedback in the form of graphic displays of concept links. (Author/FM)
Descriptors: Algorithms, Automatic Indexing, Computer Graphics, Microcomputers
Peer reviewed Peer reviewed
Craven, Timothy C. – Information Processing and Management, 1991
Discussion of graph-drawing algorithms compares and evaluates five algorithms for generated automatic graphic display of sentence dependency structures that have been implemented in the TEXTNET text structure management system. Evaluation criteria are discussed, and a test of the algorithms with a database of newspaper articles is described. (16…
Descriptors: Algorithms, Comparative Analysis, Database Management Systems, Databases
Peer reviewed Peer reviewed
Craven, Timothy C. – Information Processing and Management, 1980
Proposes a single underlying structure for the production of a variety of computer index displays, using a networking system which represents both concepts and links by nodes. Desirable characteristics of index displays are outlined, and algorithmic extraction of subnetworks for local use is discussed. References are included. (Author/BK)
Descriptors: Algorithms, Automatic Indexing, Computer Graphics, Databases