乐胖代购免代理版

{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,9,30]],"date-time":"2023-09-30T07:10:04Z","timestamp":1696057804856},"reference-count":32,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2015,5,13]],"date-time":"2015-05-13T00:00:00Z","timestamp":1431475200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Asso for Info Science & Tech"],"published-print":{"date-parts":[[2016,9]]},"abstract":"A thesaurus contains a set of terms or features that may be used to represent recorded information, including prose documents or scientific data sets. The focus of this work is on the basic structural nature of a thesaurus itself, not on how people develop a thesaurus or how a thesaurus effects retrieval performance. Thesauri in this research are automatically developed in a simulation from sets of randomly or exhaustively generated documents. Each thesaurus is generated by the T<\/jats:styled-content>hesaurus G<\/jats:styled-content>enerator software from a set of several hundred documents, and thousands of different document sets are used as input to the T<\/jats:styled-content>hesaurus G<\/jats:styled-content>enerator, producing thousands of thesauri. Thus, thousands of thesauri are generated for each data point in accompanying graphs. The characteristics of this large number of thesauri are studied so that the relationships between thesaurus parameters can be determined. Some rules governing these relationships are suggested, addressing factors such as tree height and width, number of tree roots in thesauri, and number of terms available for the vocabulary. How these parameters scale as vocabularies grow is addressed. These results apply to various information systems that contain features with hierarchical relationships, including many thesauri and ontologies.<\/jats:p>","DOI":"10.1002\/asi.23544","type":"journal-article","created":{"date-parts":[[2015,5,13]],"date-time":"2015-05-13T12:18:02Z","timestamp":1431519482000},"page":"2156-2165","source":"Crossref","is-referenced-by-count":1,"title":["Thesaurus structure, descriptive parameters, and scale"],"prefix":"10.1002","volume":"67","author":[{"given":"Robert","family":"Losee","sequence":"first","affiliation":[{"name":"University of North Carolina Manning Hall, CB#3360 Chapel Hill NC 27599\u20103360 USA"}]}],"member":"311","published-online":{"date-parts":[[2015,5,13]]},"reference":[{"key":"e_1_2_9_2_1","volume-title":"Thesaurus Construction and Use: A Practical Manual","author":"Aitchison J.","year":"2000"},{"issue":"1","key":"e_1_2_9_3_1","first-page":"268","article-title":"The NLM Indexing Initiative's Medical Text Indexer","volume":"107","author":"Aronson A.R.","year":"2004","journal-title":"Studies in Health Technology and Informatics"},{"key":"e_1_2_9_4_1","volume-title":"Introduction to information science","author":"Bawden D.","year":"2012"},{"key":"e_1_2_9_5_1","first-page":"941","volume-title":"ACM SIGIR Proceedings","author":"Bendersky M.","year":"2012"},{"key":"e_1_2_9_6_1","first-page":"97","volume-title":"Proceedings of the ACL 2007 Demo and Poster Sessions","author":"Cai K.","year":"2007"},{"key":"e_1_2_9_7_1","volume-title":"Introduction to Information Science and Technology","author":"Davis C.H.","year":"2011"},{"key":"e_1_2_9_8_1","doi-asserted-by":"crossref","DOI":"10.4324\/9780203752937","volume-title":"Hierarchy and organisation: Toward a general theory of hierarchical social systems","author":"Diefenbach T.","year":"2013"},{"key":"e_1_2_9_9_1","volume-title":"Cluster Analysis","author":"Everitt B.S.","year":"1911"},{"key":"e_1_2_9_10_1","first-page":"143","volume-title":"Hierarchy in Natural and Social Sciences","author":"Gaume B.","year":"2006"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1504\/IJMSO.2006.008766"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1108\/eb026881"},{"issue":"8","key":"e_1_2_9_13_1","first-page":"22","article-title":"Automatic indexing","volume":"9","author":"Hlava M.M.","year":"2005","journal-title":"Information Outlook"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/asi.23268"},{"issue":"2009","key":"e_1_2_9_15_1","first-page":"1","article-title":"Network structure of Japanese firms. 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