期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2015
卷号：4
期号：6
页码：2673-2680
出版社：Shri Pannalal Research Institute of Technolgy
摘要：Annotations are the tags, keywords, attribute-value pairs, comments or summary that are attached to a document or a part of the document. In case of text documents, these annotations are generated mostly based on the content of the document. Annotations are necessary for effective searching and retrieval of the documents. The concept of semantic web is closely related to annotation of documents. With a lot of research being carried out in this area, annotation systems have evolved from manual to semi-automated and fully automated systems. Researchers are also concerned about improving the performance of annotation systems in terms of accuracy of the annotations generated. This paper examines the various text based document annotation tools and frameworks and gives a detailed comparison about them.
关键词：Annotation; Metadata; Semantic web; Text ; document.
