The goal of information extraction from the Web is to provide an integrated view on data from autonomous heterogeneous information sources The main problem with current wrap per mediator approaches is that they rely on very di erent formalisms and tools for wrappers and mediators thus leading to an impedance mismatch between the wrapper and mediator level Additionally most approaches nowadays a...

My research field is highly diverse. It interweaves many different areas in information technology and bioinformatics. The system I propose to implement can automatically locate, understand, and extract online biological data independent of the source and also make it available for Semantic web agents. This research field requires background knowledge from (1) Information Extraction, (2) Schema...

There are various kinds of objects embedded in static Web pages and online Web databases. Extracting and integrating these objects from the Web is of great significance for Web data management. The existing Web information extraction (IE) techniques cannot provide satisfactory solution to the Web object extraction task since objects of the same type are distributed in diverse Web sources, whose...

The design of web information extraction systems becomes more complex and time-consuming. Detection of data region is a significant problem for information extraction from the web page. In this paper, an approach to vision-based deep web data extraction is proposed for web document clustering. The proposed approach comprises of two phases: 1) Vision-based web data extraction, and 2) web documen...

There are various kinds of objects embedded in static Web pages and online Web databases. Extracting and integrating these objects from the Web is of great significance for Web data management. The existing Web information extraction (IE) techniques cannot provide satisfactory solution to the Web object extraction task since objects of the same type are distributed in diverse Web sources, whose...

Web search engines have become the primary method of accessing information on the web. Billions of queries are submitted to major web search engines, reflecting a wide range of information needs. While significant progress has been made on improving the relevance of the results, web search process often remains a frustrating experience. At the same time, web information extraction has seen trem...

Internet has become most popular place for accessing World Wide Web (WWW). With the enormous growing amount of information over Internet, accurate and efficient web data extraction has become necessary. Nevertheless, there are various kind of web pages which are having structured, semi-structured and unstructured data. A web page is a formation of many information blocks. Besides an informative...

The features of network agricultural information (NAI) are summarized by analyzing Chinese typical, famous agricultural information websites. The features include the storage-scattered of agricultural informations, high frequency of updating, non-uniform data format and a lots of raw information existing. It is pointed out that the features have disadvantages for sharing and exploiting the NAI ...