但究竟要如何去設計或者提供哪些服務，才能算是一個優良的資訊搜尋引擎？ 因此，本研究透過事前的網站分析，依網頁的類型與其所提供的功能加以分類，為網頁增加功能性語意註記。期望搜尋之結果能篩選出與使用者之需求有最近似功能類別之網頁，進而提升搜尋結果的準確性與降低資料找尋之時間。 Recently, the search engines on the WWW has been a necessary tool for many people who’s works are based on the current and correct information. These search portals are trying to serve their customers by providing advanced and convenient mechanisms which are becoming a daily must for gathering information on the Web. These mechanisms help the users to find the suitable web pages in a way that is much more effective than before. However, the key-words based search mechanism usually return too large amount of information for the user to select. The user has to traverse and examine these returned pages one-by-one in order to decide which one is the right web page he needs. Unfortunately, the first page on the list of the search result usually is not the needed one. The user has to “browse through” so many listed pages before he can find a page that is really what he wants.
This problem exists because the key-word based searches only pickup those pages related to the key-words but do not specifying the purpose. That means, what are the actual actions he needs to do with these pages. What can be done towards this problem is to allow the user to specify what they are looking for by pointing out the functional properties of the web pages. For example, if this page contains picture or if this page allow the user to download particular type of information.
This problem points to the necessity of more advanced schemes for the user to be able to specify more clearly the functionalities of the web pages. The Semantic Web proposed by the W3C has been drawing researcher’s attention for its ability of placing meaningful annotations to the web pages. This research attempts to study the possibility of taking the advantage of the Semantic Web and allow the web pages carries information about their functionality.
An ontology concerning the possible functionalities of the web pages has been designed by this research and, based on that, an experiment allowing the user to mark functional annotations into the pages and assisting the web searches has been conducted. It has been shown that adopting this scheme can improve the quality of the web searches by returning more accurate orders of the web pages. It is believed that, after widely accepting this scheme collaboratively, the web searches will be more precise and can save large amount of user’s valuable time.
