CAJ | 학술논문

本文通过计算60种有代表性的图书情报类英文期刊从2006年至2008年的主题数量与方差,将被调查期刊按照其主题专业化与综合性分为四类。在每类期刊中选取影响因子最高的期刊,利用自组织映射的成分图分析特定期刊的主题特点。结果发现,大多数（占85%）期刊较为均衡地报导有限数量的主题;少数（占13.3%）期刊呈现出较强的综合性,即较为均衡地报导数量较多的主题;个别（占1.7%）期刊涉猎广泛,且具有明显的主题侧重;不存在高度专业化的期刊。其中,期刊的主题数量与主题侧重程度差异（由方差反映）呈现同向变化的规律,即期刊的主题数量越多,其主题侧重程度差异也越大,反之亦然。
본문통과계산60충유대표성적도서정보류영문기간종2006년지2008년적주제수량여방차,장피조사기간안조기주제전업화여종합성분위사류。재매류기간중선취영향인자최고적기간,이용자조직영사적성분도분석특정기간적주제특점。결과발현,대다수（점85%）기간교위균형지보도유한수량적주제;소수（점13.3%）기간정현출교강적종합성,즉교위균형지보도수량교다적주제;개별（점1.7%）기간섭작엄범,차구유명현적주제측중;불존재고도전업화적기간。기중,기간적주제수량여주제측중정도차이（유방차반영）정현동향변화적규률,즉기간적주제수량월다,기주제측중정도차이야월대,반지역연。
This article computed the sums and the variances of the subjects that sixty typical English journals in the field of Library and Information Science involved from 2006 to 2008.The investigated journals were categorized into four types according to their subject concentration and comprehensiveness.The journals with the highest impact factors of each type were selected and the authors employed the component plane of Self-Organizing Map（SOM） to analyze the subject characteristics of the selected journals.The results revealed that a majority（85%） of journals only involved a limited number of subjects and exhibited no obvious subject foci.A minority（13.3%） of journals were comprehensive and only one journal（1.7%） involved a lot of subjects and exhibited obvious subject foci.However,there was no highly-professional journal in our investigation.The number of subjects in the investigated journals fluctuated positively with the degree of subject foci,i.e.the journal which involved more subjects tent to exhibit more obvious subject foci and vice versa.