|Title:||The book classifier : an automatic classification system for Hong Kong school Libraries based on Dewey Decimal Classification Scheme|
|Subject:||School libraries -- China -- Hong Kong -- Automation|
Classification, Dewey decimal
Hong Kong Polytechnic -- Dissertations
|Pages:||iv, 86 leaves ; 30 cm|
|Abstract:||The Book Classifier, as the name suggests, is an automatic classification system for Hong Kong school libraries based on Dewey Decimal Classification schedule. Given a book intakes, the system basically makes use of statistical techniques rather than linguistic techniques in the process of automatic text analysis. Firstly, a term extraction process is carried out on the content representatives of the book followed by term reduction. As a result, some class vector is generated for a particular class of books. In order to measure the conformity of a book to the different class vectors, logical overlap coefficient is modified as accorded to the frequency significance of the keyterms. The book is then assigned to the class having the highest coefficient. In order to prevent excessive classification, threshold is suggested to be included in classification rule. It is found that a low threshold will lead to close classification while a high one will lead to broad classification. In our case, the optimum threshold found by comparison technique is about 0.2. In an experiment with our implemented system, it is estimated that over 88% of the books are tested to be classified correctly and the productivity of the automated system is five times that of the manual systems.|
Files in This Item:
|b1158287x.pdf||For PolyU Staff & Students||2.43 MB||Adobe PDF||View/Open|
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item: