Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web
There are two types of keywords used as metadata: controlled terms and free terms. Free terms have the advantage that metadata creators can freely select keywords, but there also exists a disadvantage that the information retrieval recall ratio might be reduced. The recall ratio can be improved b...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Code4Lib
2011-10-01
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| Series: | Code4Lib Journal |
| Online Access: | http://journal.code4lib.org/articles/5994 |
| _version_ | 1818213955724640256 |
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| author | Shun Nagaya Yutaka Hayashi Shuhei Otani Keizo Itabashi |
| author_facet | Shun Nagaya Yutaka Hayashi Shuhei Otani Keizo Itabashi |
| author_sort | Shun Nagaya |
| collection | DOAJ |
| description | There are two types of keywords used as metadata: controlled terms and free terms. Free terms have the advantage that metadata creators can freely select keywords, but there also exists a disadvantage that the information retrieval recall ratio might be reduced. The recall ratio can be improved by using controlled terms. But creating and maintaining controlled vocabularies has an enormous cost. In addition, many existing controlled vocabularies are published in formats less suitable for programming. We introduce a JavaScript library called “covo.js” that enables us to make use of controlled vocabularies as metadata for the organization of web pages. |
| first_indexed | 2024-12-12T06:12:31Z |
| format | Article |
| id | doaj.art-1d94b584541e4f8d8cc9e86e5097fe4d |
| institution | Directory Open Access Journal |
| issn | 1940-5758 |
| language | English |
| last_indexed | 2024-12-12T06:12:31Z |
| publishDate | 2011-10-01 |
| publisher | Code4Lib |
| record_format | Article |
| series | Code4Lib Journal |
| spelling | doaj.art-1d94b584541e4f8d8cc9e86e5097fe4d2022-12-22T00:35:07ZengCode4LibCode4Lib Journal1940-57582011-10-0115Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the WebShun NagayaYutaka HayashiShuhei OtaniKeizo ItabashiThere are two types of keywords used as metadata: controlled terms and free terms. Free terms have the advantage that metadata creators can freely select keywords, but there also exists a disadvantage that the information retrieval recall ratio might be reduced. The recall ratio can be improved by using controlled terms. But creating and maintaining controlled vocabularies has an enormous cost. In addition, many existing controlled vocabularies are published in formats less suitable for programming. We introduce a JavaScript library called “covo.js” that enables us to make use of controlled vocabularies as metadata for the organization of web pages.http://journal.code4lib.org/articles/5994 |
| spellingShingle | Shun Nagaya Yutaka Hayashi Shuhei Otani Keizo Itabashi Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web Code4Lib Journal |
| title | Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web |
| title_full | Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web |
| title_fullStr | Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web |
| title_full_unstemmed | Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web |
| title_short | Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web |
| title_sort | controlled terms or free terms a javascript library to utilize subject headings and thesauri on the web |
| url | http://journal.code4lib.org/articles/5994 |
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