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Huang, Y.-L.: ¬A theoretic and empirical research of cluster indexing for Mandarine Chinese full text document (1998)
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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
- Source
- Bulletin of library and information science. 1998, no.24, S.44-68
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- a
-
Tseng, Y.-H.: Keyword extraction techniques and relevance feedback (1997)
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- Abstract
- Automatic keyword extraction is an important and fundamental technology in an advanced information retrieval systems. Briefly compares several major keyword extraction methods, lists their advantages and disadvantages, and reports recent research progress in Taiwan. Also describes the application of a keyword extraction algorithm in an information retrieval system for relevance feedback. Preliminary analysis shows that the error rate of extracting relevant keywords is 18%, and that the precision rate is over 50%. The main disadvantage of this approach is that the extraction results depend on the retrieval results, which in turn depend on the data held by the database. Apart from collecting more data, this problem can be alleviated by the application of a thesaurus constructed by the same keyword extraction algorithm
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- a
-
Jianchao, X.; Ming, H.; Milin, S.: On indexing descriptors for document archive (1998)
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- Abstract
- Describes a method of indexing the descriptors of the full text of document archives. Explains how the method organizes the thesaurus of descriptors, and mixes both keyword and index terms from the thesaurus. Presents a procedure for weighting descriptors and discusses the technical issues involved
- Source
- Journal of the China Society for Scientific and Technical Information. 17(1998) no.4, S.263-265
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- a
-
Hou, H.; Chen, S.: ¬The integration of Chinese classification and thesaurus : its progress and technical features (1996)
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- Source
- Bulletin of library and information science. 1996, no.19, S.48-63
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- a
-
Xiong, L.J.: On the compiling of cataloguing rules for Chinese document(s) (1997)
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- Source
- Journal of information; communication; and library science. 4(1997) no.1, S.32-37
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- a
-
Yongcheng, W.; Xiaoming, G.; Lixia, W.: Automatic indexing on subject of Chinese text (1998)
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- Source
- Journal of the China Society for Scientific and Technical Information. 17(1998) no.3, S.219-225
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- a
-
Tseng, Y.-H.: Solving vocabulary problems with interactive query expansion (1998)
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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
- Source
- Journal of library and information science. 24(1998) no.1, S.1-18
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- a
-
Cheng, L.-y.: On bibliographic(al) control (1998)
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- Abstract
- Bibliographic(al) control is important for retrieving documents in the library. Reviews previous studies in order to understand bibliographic(al) control from its very beginnings up to the present information age. The history, meaning, scope and functions of bibliographic(al) control are included. Finally, various catalogues are reviewed and discussed
- Source
- Journal of information; communication; and library science. 4(1998) no.3, S.58-67
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- a
-
Huang, M.-h.: End-users' searching behaviour : changes in search type over time (1996)
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- Abstract
- Identifies 6 types of searches on the basis of paudsing behaviour by using cluster analysis. The 6 types of search were highly associated with search fleuncy and the construction of a mental model. Examines learning during multiple searches on the basis of the 6 types. Finds that searchers gain more experience, increase their searching proficiency and become more fluent at searching while online. The changes of search level in multiple searches showed that most searchers moved towards greater fleuncy
- Source
- Bulletin of library and information science. 1996, no.16, S.7-20
- Type
- a
-
Huang, S.-l.: Data structure and searching strategy (1995)
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- Abstract
- Reports the results of a study of the effectiveness of online searching which used TULIPS, the National Taiwan University's OPAC system, to examine the relationship between data structure and information retrieval systems. Results show the efficiency of online searching can be improved by the use of indexes and by searching by subject
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- a
-
Chen, P.: ¬The access to Internet : an explorative study (1997)
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- Abstract
- Discusses access to the Internet. Although the number of Internet users has increased since 1993, the technology is still unavailable to many. High income, highly educated people are more easily able to access new media than those who are less well off. Such a knowledge gap may contribute more to social disparity in future. To ensure that most people have access to computer networks, future national policy should move from universal service to universal access. Network policy should offer not only to make networks available to all but also to ansure people's ability to access the content
- Source
- Bulletin of library and information science. 1997, no.20, S.1-12
- Type
- a
-
Li, Z.: Research on dynamic morphological indexing (1998)
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- Abstract
- Notes that in automatic indexing of Chinese words using dictionary matching methods, there is some difficulty in the indexing of proper nouns. Presents a solution called dynamic morphological indexing, based on work using automatic indexing of archive documents. Presents the algorithm for this solution
- Source
- Journal of the China Society for Scientific and Technical Information. 17(1998) no.3, S.226-229
- Type
- a
-
Xiulan, H.: Research into the progress of citations for Chinese scientific and technical literature (1998)
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- Abstract
- Describes a study in which 6505 papers from 23 Chinese scientific and technical journals published in the 7 years from 1990 to 1996 were investigated. The quantity, languages and types of citations were analyzed and compared with data from the 1970s. In this way the progress of citations for Chinese scientific and technical journal literature can be seen
- Source
- Journal of the China Society for Scientific and Technical Information. 17(1998) no.6, S.467-473
- Type
- a
-
Tsay, M.-Y.: From Science Citation Index to Journal Citation Reports, amd criteria for journals evaluation (1997)
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- Abstract
- Investigates the characteristics of Journal Citation Reports (JCR) through the study of the Science Citation Index (SCI). Other criteria for evaluating a journal are also discussed. The compilation process of SCI data, and the characteristics, applications and limitations of SCI are studied. A detailed description of JCR is provided including: journal ranking listing, citing journal listing, cited journal listing, subject category listing, source data, impact factor, immediacy index, cited half-life and citing half-life. The applications and limitations of JCR are also explored. In addition to the criteria listed in JCR, the size, circulation and influence of journals are also considered significant criteria fir evaluation purposes
- Source
- Journal of information; communication; and library science. 4(1997) no.2, S.27-41
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- a
-
Liu, H.-M.C.: Selection and comparison of WWW search tools (1996)
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- Source
- Journal of information; communication; and library science. 2(1996) no.4, S.41-63
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- a
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Chang, H.-C.: Introduction to the fifth edition of National Library of Medicine Classification (1998)
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- Source
- Bulletin of library and information science. 1998, no.25, S.6-15
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- a
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Lin, Z.; Baoming, Z.: Comparative study of WWW search tools (1998)
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- Source
- Journal of the China Society for Scientific and Technical Information. 17(1998) no.4, S.273-280
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- a
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Yiqun, W.; Zhonghui, Z.; Li, Z.: Experimental study of machine factors and cognitive abilities of users (1998)
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- Source
- Journal of the China Society for Scientific and Technical Information. 17(1998) no.6, S.412-418
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- a
-
Huang, M.-h.: Error analysis of end users in online searching (1995)
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- Abstract
- Uses an information processing approach to analyse the behaviour of end users in searching online bibliographic databases, with particular emphasis on errors made. Following instruction in online searching, 41 students and 3 faculty end users conducted 79 subject searches. Analysis of search transcripts identified 119 reasons for errors. Errors occured most frequently in connection with functions, moves, and elements of 'create and develop sets' and 'display and print records'. Surprisingly, the results do not indicate that end users make errors less frequently as they gain more experience and practice, although syntax-related errors do decrease with time
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- a
-
Lam, W.I.; Harizan, A.; Puah, B.N.: Chinese search engine : an introduction (1998)
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