Descriptor
Search Strategies | 25 |
Tables (Data) | 25 |
Indexing | 19 |
Information Retrieval | 17 |
Subject Index Terms | 14 |
Comparative Analysis | 11 |
Online Searching | 9 |
Relevance (Information… | 9 |
Online Systems | 8 |
Databases | 7 |
Algorithms | 6 |
More ▼ |
Source
Author
Publication Type
Journal Articles | 24 |
Reports - Research | 20 |
Opinion Papers | 3 |
Reports - Descriptive | 3 |
Information Analyses | 2 |
Speeches/Meeting Papers | 2 |
Book/Product Reviews | 1 |
Reference Materials -… | 1 |
Education Level
Location
Ohio | 1 |
Saudi Arabia | 1 |
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating

Srinivasan, Padmini – Information Processing & Management, 1996
Discussion of MEDLINE document indexing focuses on a study that assessed the use of free text, Medical Subject Headings (MeSH), and a variety of combination retrieval strategies. Prior research involving free text and controlled vocabularies is reviewed, and results of the study indicate that MeSH does have an important role in text retrieval.…
Descriptors: Indexing, Information Retrieval, Keywords, Literature Reviews

Savoy, Jacques – Journal of the American Society for Information Science, 1997
Suggests a new ranking scheme especially adapted for hypertext environments in order to produce more effective retrieval results and still use Boolean search strategies. Topics include Boolean ranking schemes; single-term indexing and term weighting; fuzzy set theory extension; and citation indexing. (64 references) (Author/LRW)
Descriptors: Citation Indexes, Hypermedia, Indexing, Information Retrieval
Roberts, Stephen – 1976
Indexing and abstraction services in the social sciences are growing as primary sources. Results are that users become overwhelmed with the number of secondary services they use. Therefore, planning, coverage and overlap are examined in this research report with emphasis on reexamining secondary services and redefining users and users' needs.…
Descriptors: Abstracting, Indexing, Information Retrieval, Information Sources

Jonak, Zdenek – Information Processing and Management, 1984
Demonstrates efficiency of preparation of query description using semantic analyser method based on analysis of semantic structure of documents in field of automatic indexing. Results obtained are compared with automatic indexing results performed by traditional methods and results of indexing done by human indexers. Sample terms and codes are…
Descriptors: Algorithms, Automatic Indexing, Comparative Analysis, Information Retrieval

Baranowski, George V. – Behavioral & Social Sciences Librarian, 1980
Results of this study comparing coverage and features of Psychological Abstracts and National Institute of Mental Health (NIMH) online databases demonstrate a 49 percent citation overlap between the files. A complementary, not competitive, relationship is indicated by comparing citation overlap, journal coverage, descriptive indexing, treatment of…
Descriptors: Citations (References), Comparative Analysis, Databases, Indexing
Kaback, Stuart M. – Online, 1983
Considers patent subject searching capabilities of major online databases, noting patent claims, "deep-indexed" files, test searches, retrieval of related references, multi-database searching, improvements needed in indexing of chemical structures, full text searching, improvements needed in handling numerical data, and augmenting a…
Descriptors: Citations (References), Databases, Indexing, Information Retrieval

Jung Soon, Ro – Journal of the American Society for Information Science, 1988
Describes and discusses the findings of an experiment that tested the precision of full-text retrieval enhanced by 29 document term weighting algorithms at the lowest, middle, and highest levels of recall, and compared with the precision of full-text retrieval without algorithms and with paragraph retrieval. (29 references) (Author/CLB)
Descriptors: Algorithms, Automatic Indexing, Comparative Analysis, Evaluation Methods

Cleveland, Donald B.; And Others – Journal of the American Society for Information Science, 1984
Relative effectiveness of indexing using full-text or less than full-text was tested using non-Boolean, chaining type of file structure and searching method. Indexing was done using titles, abstracts, full-text, references, and various combinations; Goffman's indirect method of information retrieval was used to structure and search file.…
Descriptors: Databases, Hypothesis Testing, Indexing, Information Retrieval

Dillon, Martin; Gray, Ann S. – Journal of the American Society for Information Science, 1983
Provides background of automatic indexing and overview of Fully Automatic Syntactically based Indexing of Text (FASIT), a system based on idea that content-bearing words belong to certain syntactic categories. Results of comparison of FASIT with thesaurus and stem-based indexing systems on database of 250 documents and 22 queries are summarized.…
Descriptors: Automatic Indexing, Comparative Analysis, Databases, Information Retrieval

Savoy, Jacques – Information Processing & Management, 2003
Discusses cross-language, multilingual, and bilingual information retrieval on the Web; evaluates retrieval effectiveness of indexing and search strategies based on test collections from CLEF (Cross-Language Evaluation Forum) in English, French, German, and Italian; and suggests and evaluates database merging strategies. Appendices include…
Descriptors: Databases, English, Evaluation Methods, French

Hood, William; Wilson, Concepcion S. – Information Processing and Management, 1994
Summarizes the findings of a recent study on the indexing practices used in the Library and Information Science Abstracts (LISA) database. Descriptors, or indexing terms, from the thesaurus are analyzed; searching implications are discussed; and the relationship between the classification code and the descriptors is examined. (Contains 21…
Descriptors: Bibliographic Databases, Classification, Indexing, Library Science

Ro, Jung Soon – Journal of the American Society for Information Science, 1988
A comparison of the effectiveness of information retrieval based on full-text documents with retrieval based on paragraphs, abstracts, or controlled vocabularies was accomplished using a subset of journal articles with nine search questions. It was found that full-text retrieval achieved significantly higher recall and lower precision than did the…
Descriptors: Automatic Indexing, Comparative Analysis, Databases, Evaluation Methods

Chitty, A. B. – Information Technology and Libraries, 1987
Proposes a rationale to be used in comparing and evaluating alternative library computer catalogs, based on varieties of bibliographic data processed, kinds of indexes constructed, and desired search strategies. A glossary of terms related to computerized catalogs is appended. (Author/CLB)
Descriptors: Bibliographic Utilities, Comparative Analysis, Evaluation Criteria, Glossaries

Smith, F. J.; Devine, K. – Information Processing and Management, 1985
Zipfian laws for frequency distributions of word pairs and longer phrases are derived from text sample analysis. From crossing of Zipfian curves, it is deduced that number of multi-word phrases that occur frequently in text is surprisingly small, of same order of magnitude as number of individual word-types. (8 references) (EJS)
Descriptors: Algorithms, Graphs, Indexing, Information Retrieval

Choros, Kazimierz; Danilowicz, Czeslaw – Information Processing and Management, 1982
Discusses methods of weighting of descriptors in document search patterns together with the concept of relative indexing and conditions which should be satisfied by descriptor weight. A procedure for modifiying document search patterns based on users' informational needs and opinions is outlined, and examples are given. Sixteen references are…
Descriptors: Algorithms, Indexing, Information Retrieval, Information Seeking
Previous Page | Next Page ยป
Pages: 1 | 2