• Journal of the Korean Data and Information Science Society
• /
• v.14 no.2
• /
• pp.413-428
• /
• 2003

If a restriction is imposed only to a (proper) subset of parameters of interest, we call it a local restriction. Statistical inference under a local restriction in multinomial setting is studied. The maximum likelihood estimation under a local restriction and likelihood ratio tests for and against a local restriction are discussed. A real data is analyzed for illustrative purpose.

• Journal of the Korean Society for information Management
• /
• v.22 no.3 s.57
• /
• pp.85-102
• /
• 2005

The purpose of this study is to analysis the type of cited materials, dependence ratio of foreign information of domestic researchers, and to predicts half-life of life science for the collection development of libraries and user friendly information services. The journal articles was extracted from five subjects-medical science, pharmacy, food science, agricultural science, microbiology. In result, it was found that it citing the scholarly journal most plentifully, and dependence ratio of foreign information of domestic researchers was high most the microbiology. And then, half-life of life science was found 8.98 in agricultural science, and 7.11 in food science, and 6.96 in pharmacy, and so on.

• Journal of the Korean Society for information Management
• /
• v.20 no.4 s.50
• /
• pp.1-21
• /
• 2003

The purpose of this study is to analysis the types of cited materials dependence ratio of foreign information of researchers, and half-life of some cited analysis, Journal articles from four science & technology fields-mechanical, architectural, chemical, electrical-are selected, and the literatures cited by those journal articles are analysed in terms of resource types, languages, publication year of cited analysis. In result, it was found that the order of frequency of citation is scholarly journal, monograph, Proceeding, technical report. And dependence ratio of foreign information of researchers was most higher in the chemical field. Also, it was found that half-life of mechanical is 6.50, that of architectural is 5.45, that of chemical is 9.65, that of electrical is 5.60