The trend of SDI service on web

• Main Authors: Erwin Chuang, 莊英泰
• Other Authors: C. J. Wu
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/17093421450779339374

碩士 === 輔仁大學 === 圖書資訊學系 === 86 === One of the researcher''s needs is to keep up with the current development of his research interests. To respond this need, librarians provide the service of selective dissemination of information (SDI). This service can let researchers keep in contact with the newest information without doing the tedious searching works by themselves periodically. Unfortunately, the SDI service can only serve very limited readers due to the hard labor and time-consuming. Therefore, how to take advantage of new technology to conquer this kind of limit and to provide more people the SDI service becomes an important research topic. Firstly, I introduce the definition, the aim, the history development, the relevant literatures, and the operation patterns of traditional SDI service. Secondly, an introduction of the current retrieval technologies on Web including the search engines, the meta search engines, and information filter systems is provided. This is followed by a comparison between these new technologies and the needs for SDI. Lastly, a prototype system is produced for the possible future development of the automatic SDI service.