• Journal of the Korean Society for information Management
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• v.15 no.2
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• pp.29-46
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• 1998

It is practiced by many Korean medical institutions to give weights to medical papers published n foreign journals covered by major international abstracts and indexes (A&I) in the evaluation of research performance. In an attempt to recommend the databases to be used for the evaluation of KOrean medical research papers, this study measured the extent of overlap records of Korean medical papaers retrieved from the three major medical databases, EMBASE, MEDLINE and SCISEARCH. Korean papers published in foreign journals between 1990 to 1995 were analyzed. It also analyzed the characteristics of journals where these Korean medical papers are published with respect to their subjects, publishing countries and languages. It is found that these is no difference among three databsases as far as the characteristics of journals where Korean medical papers are published are concerned with respect to their subjects, publishing countries and languages. Thus the number of papers retrieved from each database should be the major criterion to recommend the A&I databases to be used in the evalua ion of research performance. If one database must be chosen for the evaluation of Korean medical papers, it is probably the best to utilize SCISEARCH which is the most efficient database for verifying Korean medical papers in foreign journals. If two databases can be used, then EMBASE should be the next choice.

• Proceedings of the Korean Society for Information Management Conference
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• 1998.08a
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• pp.105-108
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• 1998

여러 색인들에 수록된 한국의학논문의 중복정도를 연구하여, 연구업적을 효율적으로 평가하기 위한 색인 선정방법을 제시하고자 하였다. EMBASE, MEDLINE, SCISEARCH에 수록된 1990년에서 1995년 사이의 한국의학논문 중에서, 외국 학술지에 게재된 한국의학논문의 건수와 연도별 증가추이를 조사 분석하였다. 1990년, 1992년, 1994년 3개년을 선정하여, 2개 이상 데이터베이스에서 중복 검색된 논문수, 특정 데이터베이스에서만 검색된 논문수, 그 논문들이 실린 학술지를 분석하였다. 의학연구업적을 평가할 때에, 한 개의 데이터베이스를 사용한다면 한국의학논문이 가장 많이 검색된 SCISEARCH를, 두 개의 데이터베이스를 활용한다면 EMBASE를 추가하는 것이 효율적인 데이터베이스 선정방법이라고 할 수 있다.

• Journal of the Korean Society for information Management
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• v.17 no.1
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• pp.49-65
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• 2000

The availability and use (citedness) of Korean medical journals are measured based on the bibliometric data of 82 journals evaluated by the Korean Association of Medical Journal Editors between 1997 and 1999. A Korean medical journal is held on the average by one half of Korean medical libraries investigated. Only 10 journals (12.2%) are covered in any of 36 abstract and index databases in the field of medicine searchable through DIALOG. The journal self-citation rate is 3.402%. 1.092% of papers are cited at least once by SCI journal papers within 3 years after publication. The average SCI impact factor of Korean medical journals is 0.111, However, the impact factor of MEDLINE or SCISearch journals is 10 times higher. The results show that the Korean medical journals are not easily available domestically and internationally. They are hardly cited by Korean colleagues or by foreign scholars either.

• Journal of the Korean Society for Library and Information Science
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• v.26
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• pp.213-233
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• 1994

This study measured whether subject descriptor searching and citation searching retrieve different documents for conceptual queries and methodological queries in natural science, engineering and social science. The retrieval effectiveness of two search methods was measured using as criteria, total number of documents retrieved, total number of relevant documents, overlapping and unique documents and precision ratio. The search subject was water resources and the databases used were Selected Water Resources Abstracts (SWRA) and SCISEARCH. Data were collected for 21 doctoral students working on their dissertations in the three fields of water resources. Principal findings included: 1) subject searching and citation searching each retrieved substantially equal number of documents; 2) total number of relevant documents for conceptual queries was larger than that for methodological queries, while there was a large variation among the three fields; 3) the average overlap was quite small, while citation searching yielded more unique documents than subject searching; 4) for conceptual queries, citation searching yielded a higher precision ratio than subject searching, while subject searching obtained a slightly higher precision ratio than citation searching for methodological queries ; and 5) citation searching was effective for both specific queries and broad queries if seed articles are well chosen, while subject searching only worked well for broad queries. It was further found that: 1) citation searching is not a subsidiary but a substantial retrieval method in water resources; 2) SWRA is effective for queries for engineering and SCISEARCH is appropriate for queries for natural science, while neither SWRA nor SCISEARCH work well for queries for social science; and 3) characteristics of queries affect retrieval results more than the characteristics of documents or the coverage of databases.

• Journal of the Korean Society for information Management
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• v.16 no.1
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• pp.137-156
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• 1999

The DIALOG's SCISearch database was searched, and the number of SCI Korean medical papers in each medical specialty was measured by document type and by publication year for the 1990-1995 period. The growth of SCI Korean medical papers was examined during this period. The percentage contribution of Korean medical papers to SCI database. and the SCI(mainstream) publication productivity ratio were analyzed for each medical specialty. The data obtained in this study for the early 1990s was compared with the data representing the 1980s. In addition, the fame research methodology was applied to the SCI Korean chemistry papers, and the result was compared with medicine. The purpose of these analysis is to investigate the extent and growth of mainstream publication activity of Korean medicine.

• Journal of the Korean Society for Library and Information Science
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• v.27
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• pp.265-289
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• 1994

Databases publicly available for online searching permit both citation and subject searching, however, subject searching has dominated the online search environment. Despite the power of citation searching, it may be underutilized This study explored the relationship between the number of cited references used in a citation search and information retrieval effectiveness, a relatively unstudied phenomenon. Three articles in the library and information science literature were chosen to represent sample questions. Cited reference searches were conducted for each article and each of its references. All searches were conducted in Social Scisearch and Scisearch on DIALOG. Relevance judgments on the retrieved citations were obtained from the authors of the original articles. This research focused on analyzing, in terms of information retrieval effectiveness, the overlap among postings sets retrieved by various combinations of cited references. The findings from the three case studies clearly showed that the more cited references used for the citation search, the better the performance, in terms of retrieving more relevant documents, up to a point of diminishing retums. In addition, generally the overall level of overlap among relevant documents sets was found to be low. Therefore, if only some of the cited references among many candidates are used for a citation search, a significant proportion of relevant documents may be missed. The analysis of the characteristics of cited references provided the ways to predict which cited refereces would be useful to improve information retrieval. The findings of this comprehensive exploratory study are of interest for both theoretical and practical reasons. They contribute to the development of a theoretical model for the effective use of the citation search. This model might also be implemented in operational online systems. In addition, the findings potentially will help online searchers improve their search strategies using the citation search so that they can better achieve their information retrieval goals: the retrieval of items relevant to a given question and the suppression of nonrelevant items.