Search (10 results, page 1 of 1)

Huang, M.-h.: Five fundamental concepts in information retrieval (1996) 0.01

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Abstract: Discusses the 5 fundamental concepts of information retrieval addressed by Patrick Wilson - information, aboutness, relevance, need and use. Although it is impossible to reach consensus definitions for these concepts it can be helpful for future discussions in information retrieval researches

Lee, Y.-R.: ¬A study on the conditions of using OPAC access points and subject searching by users (1997) 0.01

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Source: Bulletin of library and information science. 1997, no.22, S.39-55

Yi, H.; Shubai, L.: Application of classification in information organization under the networking environment (1998) 0.01

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Source: Journal of the China Society for Scientific and Technical Information. 17(1998) no.1, S.19-22

Lin, W.-Y.C.: ¬The concept and applications of faceted classifications (2006) 0.01

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Date: 27. 5.2007 22:19:35

Pu, H.-T.: Exploration of personalized information service for OPAC (1997) 0.01

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Date: 4. 8.1998 19:36:22

Wu, C.-J.: Metadata and future developments in cataloguing (1997) 0.01
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Abstract

Metadata is a resource which can assist the information retrieval of digital documents on the Internet. In designing a metadata system, it is necessary to consider the characteristics of digital documents, such as the variety of file formats, frequent format transformation and the difficulty of distinguishing between the different versions. Provides a brief analysis of some existing metadata formats, and introduces several pronciples for the future development of cataloguing on the Internet. Briefly describes the Metadata Experimental System (MES) currently under development, and located at the author's homepage
Huang, Y.-L.: ¬A theoretic and empirical research of cluster indexing for Mandarine Chinese full text document (1998) 0.01
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Abstract

Since most popular commercialized systems for full text retrieval are designed with full text scaning and Boolean logic query mode, these systems use an oversimplified relationship between the indexing form and the content of document. Reports the use of Singular Value Decomposition (SVD) to develop a Cluster Indexing Model (CIM) based on a Vector Space Model (VSM) in orer to explore the index theory of cluster indexing for chinese full text documents. From a series of experiments, it was found that the indexing performance of CIM is better than traditional VSM, and has almost equivalent effectiveness of the authority control of index terms
Huang, W.-J.: ¬The definition of ontological and applied information and the trend of information service (1997) 0.01
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Abstract

Attempts to circumscribe 'information' by means of etymology and the semantics of Chinese characters rather than the traditional way, and also to define several other terms related to information. Discusses the characteristics of information and its movement, and reviews some issues about information science. Information science recognizes information and uses it for making decisions and solving problems. Yi-Jeng (the Book of Changes), the oldest book about the world system, not only explains the relationship between human beings and the universe, but also focuses on how to recognize and use information to improve quality of life and avoid calamity. Derives some conclusions useful for the development of information science from Yi-Jeng. Also discusses the chaotic state caused by rapidly developing networks without a precise concept. Considers some desirable characteristics for the design of information service systems
Huang, S.-L.: ¬The conceptual model of computer aided Chinese classification system (1997) 0.01
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Abstract

In a prototype model of a computer aided Chinese classification system, 4 different modules were included: the keyword searching type, user's predomination type, expert wizard type and versatile type. These 4 modules work in different ways whilst sharing the same concept. The keyword searching type finds the most suitable category by scanning the keywords of all categories in a database; it is useful for entrance level staff. The user's predomination type allows the user to key in the proper category to size down the number of returning data; the user then picks the best category by browsing the built in keywords. This module is suitable for professional librarians. The expert wizard type actively leads the user to choose the best category one by one. The versatile type is a mixture of the other 3 types
Tseng, Y.-H.: Solving vocabulary problems with interactive query expansion (1998) 0.00
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Abstract

One of the major causes of search failures in information retrieval systems is vocabulary mismatch. Presents a solution to the vocabulary problem through 2 strategies known as term suggestion (TS) and term relevance feedback (TRF). In TS, collection specific terms are extracted from the text collection. These terms and their frequencies constitute the keyword database for suggesting terms in response to users' queries. One effect of this term suggestion is that it functions as a dynamic directory if the query is a general term that contains broad meaning. In term relevance feedback, terms extracted from the top ranked documents retrieved from the previous query are shown to users for relevance feedback. In the experiment, interactive TS provides very high precision rates while achieving similar recall rates as n-gram matching. Local TRF achieves improvement in both precision and recall rate in a full text news database and degrades slightly in recall rate in bibliographic databases due to the very limited source of information for feedback. In terms of Rijsbergen's combined measure of recall and precision, both TS and TRF achieve better performance than n-gram matching, which implies that the greater improvement in precision rate compensates the slight degradation in recall rate for TS and TRF

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