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Features and Uses of a Multilingual Full-Text Electronic Theses and Dissertations (ETDs) System

Features and Uses of a Multilingual Full-Text Electronic Theses and Dissertations (ETDs) System. Yin Zhang Kent State University Kyiho Lee, Bumjong You Korea Institute of Science and Technology Information National Online 2001, New York. Outline of Presentation.

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Features and Uses of a Multilingual Full-Text Electronic Theses and Dissertations (ETDs) System

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  1. Features and Uses of a Multilingual Full-Text Electronic Theses and Dissertations (ETDs) System Yin Zhang Kent State University Kyiho Lee, Bumjong You Korea Institute of Science and Technology Information National Online 2001, New York

  2. Outline of Presentation • Features of the KISTI ETD system • Background of the system • Multilingual support • Full-text retrieval • System structure • Uses of the KISTI system • General statistics of system use • System users • Users’ activities

  3. Korea Institute of Science and Technology Information (KISTI) • National information center for science and technology • A research institute under Office of the Prime Minister • Major functions • Online S&T Information Service • Database Construction • Bibliographic & holdings information • Full text (e.g., research reports, Journal Papers, and theses) • Human resource and equipment data • More than 20 databases for the public • Computer Network Operation • Establishment of National Digital Library

  4. Background of the ETD System • In 1997, two universities (KAIST/ POSTEC) began to accept ETDs • In 1998, KISTI started to build a national digital library for ETDs • Currently, most universities require students to summit ETDs for graduation • In 2001, more than 20 universities will join this project • KISTI plans to collaborate with Networked Digital Library for Theses and Dissertations (NDLTD, an international organization for ETDs)

  5. Multilingual Support • Issues on multilingual documents • Most Korean ETDs consist of English and Korean • Korean and Chinese are 2-byte languages (English is 1-byte) • Each language needs to develop its own indexer for full-text • KISTI ETD system provides • Multilingual input/output for English, Korean, Chinese, and Japanese • Multilingual retrieval • Korean/Chinese word by word translation

  6. Full-Text Retrieval • In the Internet environment, ETD users require full-text service (not just bibliographic information) • Two types of full-text retrieval systems • Indirect access type Users first access abstract DB, and if they want full-text, system link to full-text DB • Direct access type Users access full-text DB directly using query • Korean ETD system • provides direct access • allows users to access DB and to retrieve data by page unit

  7. Direct Full-Text Service Model Query MS Word PDF LaTex Information Retrieval System Unified Viewer Text Filter Format Conversion Full-Text DB

  8. Structure Features • Major components • Conversion tool • Full-text database • Storage and retrieval engine • Web interface • The system focuses on • Complete full-text retrieval • Automatic indexing with ranking ability • Page by page retrieval to reduce response time

  9. Structure of Service System DVI/TIFF Viewer HWP/DOC/TEX Client Bibliographic Info W/P file Thesis Document Inputer Converter Scanner Internet Web Gateway TIFF Format DVI Format KRISTAL-II DVI2TEXT Page Unit TEXT Image DB Bibliographic DB Full text DB Bibliographic Doc

  10. System Use: General StatisticsNumber of Hits of the KISTI ETD Website

  11. Number of Visitor Sessions to the KISTI ETD Website

  12. Users by Number of Visits to the KISTI ETD Website

  13. Users’ Geographic Locations • From the very beginning, the KISTI ETD system has attracted international users. • In particular, from May to October 2000, the percentage of visitor sessions by international users ranged from 10.6% to 28.9%. • These international users were from diverse countries. Topping the list were the United States, Germany, and Japan.

  14. Users’ Domains • Most users who visited the KISTI ETD system were from an educational domain (82.9% of hits; 70.0% of visitor sessions). • Network and commercial domains were the next two major domains with which the user groups were associated. • Users from these three domains contributed to 99.2% of the total hits and 98.2% of the visitor sessions among the users with an identifiable domain name.

  15. Users’ Activities

  16. Conclusions • The system has seen a significant increase in use since May 2000, about one year after the system was put into regular service. • The KISTI ETD system attracts users from many other countries and has become a part of the international networked digital library of theses and dissertations. • This finding suggests possible ways the KISTI ETD system could better meet the needs of its audiences.

  17. Conclusions(continued) • At present, the majority of KISTI ETD users are affiliated with educational institutions. • While most users of the system are one-time users, the system has begun to maintain a frequent user group in its second year in service. • While users heavily request tables of contents and abstracts of ETDs during their search sessions, they use tables of contents more than abstracts. • The two system features, page-by-page viewing and index browsing, are also widely used to assist users searching and selecting ETDs before loading the entire documents.

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