CAJ | 학술논문

为了对学术动态、热点及学术发展趋势进行研究，需要对学术研究论文进行数据挖掘研究。首先需要从海量的学术论文中提取有兴趣的信息。针对目前学术论文大多采用PDF格式的现状，重点研究了PDF文件的格式以及对PDF格式操作的各种技术，采用开源函数库PDFBox对PDF格式的学术论文按照规则进行信息的提取，提取的信息主要包括学术论文的标题、作者、单位、关键词、发表时间、摘要等信息。最后对提取信息的正确率进行了统计，有助于针对学术研究的大数据研究。
위료대학술동태、열점급학술발전추세진행연구，수요대학술연구논문진행수거알굴연구。수선수요종해량적학술논문중제취유흥취적신식。침대목전학술논문대다채용PDF격식적현상，중점연구료PDF문건적격식이급대PDF격식조작적각충기술，채용개원함수고PDFBox대PDF격식적학술논문안조규칙진행신식적제취，제취적신식주요포괄학술논문적표제、작자、단위、관건사、발표시간、적요등신식。최후대제취신식적정학솔진행료통계，유조우침대학술연구적대수거연구。
In order to research the academic dynamics,hot topic and academic development trends,need to carry out the data mining re-search for academic research papers. First of all,extract interest information from the massive papers. For the situation that the current aca-demic papers are mostly used PDF format,mainly study the format of PDF files and a variety of technical operations for PDF operations, open-source library PDFBox is used to extract information for the academic papers with PDF format in accordance with the rules,the ex-tracted information is mainly including academic titles,authors,unit,keyword,publication time,abstract and other information. Finally, the correct rate of extraction of information has been statistical,which is helpful for big data for academic research.