Author: Ralph L. DarbyPublisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 180
Book Description
Operation of the Analytical Methodology Information Center
Author: Ralph L. DarbyPublisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 180
Book Description
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : United States
Languages : en
Pages : 1408
Book Description
Selected U.S. Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 16
Book Description
Selected Water Resources Abstracts
Author: Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1194
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Research Awards Index
Author: Research Grants Index
Author: National Institutes of Health (U.S.). Division of Research GrantsPublisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1074
Book Description
Explorations in Automatic Thesaurus Discovery
Author: Gregory GrefenstettePublisher: Springer Science & Business Media
ISBN: 0792394682
Category : Computers
Languages : en
Pages : 324
Book Description
Explorations in Automatic Thesaurus Discovery presents an automated method for creating a first-draft thesaurus from raw text. It describes natural processing steps of tokenization, surface syntactic analysis, and syntactic attribute extraction. From these attributes, word and term similarity is calculated and a thesaurus is created showing important common terms and their relation to each other, common verb--noun pairings, common expressions, and word family members. The techniques are tested on twenty different corpora ranging from baseball newsgroups, assassination archives, medical X-ray reports, abstracts on AIDS, to encyclopedia articles on animals, even on the text of the book itself. The corpora range from 40,000 to 6 million characters of text, and results are presented for each in the Appendix. The methods described in the book have undergone extensive evaluation. Their time and space complexity are shown to be modest. The results are shown to converge to a stable state as the corpus grows. The similarities calculated are compared to those produced by psychological testing. A method of evaluation using Artificial Synonyms is tested. Gold Standards evaluation show that techniques significantly outperform non-linguistic-based techniques for the most important words in corpora. Explorations in Automatic Thesaurus Discovery includes applications to the fields of information retrieval using established testbeds, existing thesaural enrichment, semantic analysis. Also included are applications showing how to create, implement, and test a first-draft thesaurus.
Indexed Bibliography of Office of Research and Development Reports Updated to January 1975
Author: United States. Environmental Protection Agency. Office of Program ManagementPublisher: Washington : U.S. Environmental Protection Agency, Office of Research and Development
ISBN:
Category : Environmental protection
Languages : en
Pages : 324
Book Description
History of Operations Research in the United States Army, V. 2: 1961-1973 (Paperback)
Author: Publisher: Government Printing Office
ISBN: 9780160872853
Category : History
Languages : en
Pages : 400
Book Description
NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT--OVERSTOCK SALE -- Significantly reduced list price This second of three volumes on the history of operations research identifies, describes, and evaluates the ideas, people, organizations, and events that influenced the development of ORSA in the Army from the inauguration of President Kennedy in 1961 to the withdrawal of U.S. forces from Vietnam in 1973. Related products: History of Operations Research in the United States Army, V. I: 1942-62 -- Print Paperback format --can be found here: https: //bookstore.gpo.gov/products/sku/008-029-00433-0 History of Operations Research in the United States Army, V. 3, 1973-1995 --Print Paperback format -- can be found here: https: //bookstore.gpo.gov/products/sku/008-029-00473-9"