| Summary: | 碩士 === 淡江大學 === 資訊與圖書館學系碩士班 === 93 === Scholarly information is an essential information source for researchers in pursuit of knowledge discovery and innovation. Internet search engines, such as Google Scholar, have become another new approach to accessing scholarly information gradually when scholarly resources are incorporated into their coverage. The change of information access has impacted all roles and corresponsive behaviors in scholarly communication, including researchers as author and enduser, libraries as information delivery, and related business models.
This paper aims to adopt comparison as research methodology to explore the difference of search engines on Internet from current information systems in accessing to scholarly resources. The research subjects are composed of search engine, bibliographic and fulltext databases in the following: Google Scholar, OCLC WorldCat, ACM Digital Library and IEEEXplore. Moreover, four sets of 30 individual samples are chosen to test four selected subjects respectively from books, non-books and electronic journals, in order to examine the functionality issues ranging from retrieval, browse, display, to delivery.
As a consequence, four findings are offered by this study. Firstly, the Google Scholar is more powerful on retrieval, especially in control of stop words and punctuations, as well as less constraint on length of query strings. Secondly, the OCLC WorldCat provides better performance of browsing, display and delivery. Thirdly, all of four offer well-designed online help information. However, non-stop and free authentication control access to scholarly resources of the Google Scholar is superior to others.
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