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A framework of automatic subject ter...

Chung, EunKyung.

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A framework of automatic subject term assignment: An indexing conception-based approach.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	A framework of automatic subject term assignment: An indexing conception-based approach./
作者:	Chung, EunKyung.
面頁冊數:	124 p.
附註:	Source: Dissertation Abstracts International, Volume: 68-02, Section: A, page: 0388.
Contained By:	Dissertation Abstracts International68-02A.
標題:	Library Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3254176

A framework of automatic subject term assignment: An indexing conception-based approach.
Chung, EunKyung.

A framework of automatic subject term assignment: An indexing conception-based approach. - 124 p.

Source: Dissertation Abstracts International, Volume: 68-02, Section: A, page: 0388.

Thesis (Ph.D.)--University of North Texas, 2006.

The purpose of dissertation is to examine whether the understandings of subject indexing processes conducted by human indexers have a positive impact on the effectiveness of automatic subject term assignment through text categorization (TC). More specifically, human indexers' subject indexing approaches or conceptions in conjunction with semantic sources were explored in the context of a typical scientific journal article data set.Subjects--Topical Terms:

881164
Library Science.

A framework of automatic subject term assignment: An indexing conception-based approach.
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245 1 2 $a A framework of automatic subject term assignment: An indexing conception-based approach.
300 $a 124 p.
500 $a Source: Dissertation Abstracts International, Volume: 68-02, Section: A, page: 0388.
500 $a Advisers: Samantha K. Hastings; Shawne Miksa.
502 $a Thesis (Ph.D.)--University of North Texas, 2006.
520 $a The purpose of dissertation is to examine whether the understandings of subject indexing processes conducted by human indexers have a positive impact on the effectiveness of automatic subject term assignment through text categorization (TC). More specifically, human indexers' subject indexing approaches or conceptions in conjunction with semantic sources were explored in the context of a typical scientific journal article data set.
520 $a Based on the premise that subject indexing approaches or conceptions with semantic sources are important for automatic subject term assignment through TC, this study proposed an indexing conception-based framework. For the purpose of this study, three hypotheses were tested: (1) the effectiveness of semantic sources, (2) the effectiveness of an indexing conception-based framework, and (3) the effectiveness of each of three indexing conception-based approaches (the content-oriented, the document-oriented, and the domain-oriented approaches). The experiments were conducted using a support vector machine implementation in WEKA (Witten, & Frank, 2000).
520 $a The experiment results pointed out that cited works, source title, and title were as effective as the full text, while keyword was found more effective than the full text. In addition, the findings showed that an indexing conception-based framework was more effective than the full text. Especially, the content-oriented and the document-oriented indexing approaches were found more effective than the full text. Among three indexing conception-based approaches, the content-oriented approach and the document-oriented approach were more effective than the domain-oriented approach. In other words, in the context of a typical scientific journal article data set, the objective contents and authors' intentions were more focused that the possible users' needs. The research findings of this study support that incorporation of human indexers' indexing approaches or conception in conjunction with semantic sources has a positive impact on the effectiveness of automatic subject term assignment.
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