نام و نام خانوادگی
نادر منتظري – 901784- گروه 1 - درس سيستم هاي تصميم يار

نام مقاله
Managing knowledge on the Web – Extracting ontology from HTML Web

نویسنده
Timon C. Du , Feng Li , Irwin King

نام ژورنال
ELSEVIER

سال انتشار
2009

چكيده
a b s t r a c t In recent years, the Internet has become one of the most important sources of information, and it is nowimperative that companies are able to collect, retrieve, process, and manage information from the Web.However, due to the sheer amount of information available, browsing web content by searches usingkeywords is inefficient, largely because unstructured HTML web pages are written for human comprehensionand not for direct machine processing. For the same reason, the degree of web automation is limited. It isrecognized that semantics can enhance web automation, but it will take an indefinite amount of effort toconvert the current HTMLWeb into the Semantic Web. This study proposes a novel ontology extractor, calledOntoSpider, for extracting ontology from the HTML Web. The contribution of this work is the design andimplementation of a six-phase process that includes the preparation, transformation, clustering, recognition,refinement, and revision for extracting ontology from unstructured HTML pages. The extracted ontologyprovides structured and relevant information for applications such as e-commerce and knowledgemanagement that can be compared and analyzed more effectively. We give detailed information on thesystem and provide a series of experimental results that validate the system design and illustrate theeffectiveness of OntoSpider.

Zhengchuan Xu, Yufei Yuan, Shaobo Ji