Despite the advancement of XML, the majority of documents on the Web is still marked up with HTML for visual rendering purposes only, thus building a huge amount of ”legacy” data. In order to facilitate querying Web based data in a way more efficient and effective than just keyword based retrieval, enriching such Web documents with both structure and semantics is necessary. This paper describes...

Interactive Dynamic Maps (IDMs) help users interactively explore webs of hypermedia documents. IDMs provide automatically-generated abstract graphical views at different levels of granularity. Visual cues give users a better understanding of the content of the web, which results in better navigation control and more accurate and effective expression of queries. IDMs consist of: topic maps, whic...

The World Wide Web is a rich annotation system which allows people to relate to documents and sites from different perspectives. People describe, comment, relate or mock other Web pages in the context of their document. This richness is currently not reflected in snippets presented by Web search engines, where a search result is represented by the text found in the Web document alone. This pape...

This paper proposes a visualization tool for the structure of World-Wide Web documents using fisheyeview techniques. Besides helping user navigation, this graphical browser may play an important role in web information searching. In order to build structural views more efficiently, a set of rules for web-site authoring, based on nested composition concepts, are proposed to help logically organi...

The World Wide Web is growing and changing at an astonishing rate. For the information in the web to be useful, web information systems such as search engines have to keep up with the growth and change of the web. In this paper we study how web documents change. In particular, we study two important characteristics of web document change that are directly related to keeping web information syst...

Indexing is a crucial technique for dealing with the massive amount of data present on the web. Indexing can be performed based on words or on phrases. Our approach aims to efficiently index web documents by employing a hybrid technique in which web documents are indexed in such a way that knowledge available in the Wikipedia and in meta-content is efficiently used. Our preliminary experiments ...

As the Web continues to grow, it has become increasingly difficult to search for relevant information using traditional search engines. Topic-specific search engines provide an alternative way to support efficient information retrieval on the Web by providing more precise and customized searching in various domains. However, developers of topic-specific search engines need to address two issues...

This paper presents a focused web crawler system which automatically creates a minority language corpora. The system uses a database of relevant and irrelevant documents testing the relevance of retrieved web documents. The system requires a starting web document to indicate where the search would begin.

This paper presents quantitative measurements and analyses of various issues related to web servers and web documents in Thailand. We developed a web spider to automatically collect the web information and describe the design and its performance. Using the web spider, we found that there are over 700,000 documents and over 8000 web servers on Thai web (information located on the servers registe...