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Feasibility of a computer-generated subject validation file based on frequency of occurrence of assigned LC subject headings : phase II, nature and patterns of invalid headings
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Feasibility of a computer-generated subject validation file based on frequency of occurrence of assigned LC subject headings : phase II, nature and patterns of invalid headings

作者: Lois Mai Chan; Diane Vizine-Goetz; OCLC. Office of Research.
版本/格式:   文章 : 文獻   電腦資料 : 英語所有版本和格式的總覽
資料庫:WorldCat
提要:
The first phase of this project studied the feasibility of automatically generating a subject validation file with complete strings but few errors and obsolete elements from LC-assigned subject headings appearing in bibliographic records. It analyzed the distribution and density of subject headings by frequency of use and calculated the rate of errors and obsolete elements in subject headings that have been used at  再讀一些...
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資料類型: 文獻, 網際網路資源
文件類型: 文章, 電腦資料, 網路資源
所有的作者/貢獻者: Lois Mai Chan; Diane Vizine-Goetz; OCLC. Office of Research.
OCLC系統控制編碼: 54367569
在: Annual review of OCLC research (Online
注意: Title from title screen (viewed Feb. 6, 2004).
詳述: Mode of access: Internet.
責任: Lois Mai Chan and Diane Vizine-Goetz.

摘要:

The first phase of this project studied the feasibility of automatically generating a subject validation file with complete strings but few errors and obsolete elements from LC-assigned subject headings appearing in bibliographic records. It analyzed the distribution and density of subject headings by frequency of use and calculated the rate of errors and obsolete elements in subject headings that have been used at least twice in the LCMARC database. The second phase analyzes the nature and patterns of incorrect and obsolete subject headings. Although errors in subject headings assigned by LC occur at a relatively low rate, an awareness of the nature of errors and the rate of obsolete headings will help to avoid or minimize such errors in the future. Understanding the recurring patterns of errors can also help to improve mechanisms for identifying and correcting errors and for updating obsolete headings automatically.

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