CAJ | 학술논문

XML(extensible mallkup language)文档已经被广泛用作应用程序的一个数据交换格式,针对XML数据的压缩技术也逐渐成为新的研究领域.提出XSLC(XML stream layerecl-coding compression)算法,通过预先扫描DTD对数据模式进行分析,继而根据元素的父子关系进行子元素层面的编码;同时根据数据类型进行数据压缩,能够在压缩之后的文档上进行查询,因为仅需一遍压缩扫描所以可以应用于数据流环境.实验表明:XSLC算法的压缩比率和压缩时间均优于传统算法.
XML(extensible mallkup language)문당이경피엄범용작응용정서적일개수거교환격식,침대XML수거적압축기술야축점성위신적연구영역.제출XSLC(XML stream layerecl-coding compression)산법,통과예선소묘DTD대수거모식진행분석,계이근거원소적부자관계진행자원소층면적편마;동시근거수거류형진행수거압축,능구재압축지후적문당상진행사순,인위부수일편압축소묘소이가이응용우수거류배경.실험표명:XSLC산법적압축비솔화압축시간균우우전통산법.
XML documents have been widely used as a data exchange format. XML (extensible markup language) data compression technology has become a new field of research. A compression methyl called XSLC (XML stream layered-coding compression) is proposed to compress and decompress XML stream in real time. When DTD (document type definition) is available, XSLC can analyze the data model and encode elements according to the relationship of father node and son node, compress data part according to its type, and support query operations applied on compressed files, as for only one time of scanning data is needed, all the processes can be implemented in XML data stream environment. Experimental results show that XSLC outperforms other methods in compression ratio and compression efficiency.