Abstract Users of Web search engines are often forced to sift through the long ordered list of document “snippets” returned by the engines. The IR community has explored document clustering as an alternative method of organizing retrieval results, but clustering has yet to be deployed on the major

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Developing a specialized directory system by automatically classifying

Extraction of information from unstructured or semistructured Web documents often requires a recognition and delimitation of records. (By "record" we mean a group of information relevant to some entity.) Without first chunking documents that contain multiple records according to record

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

The paper argues for the use of general and intuitive knowledge representation languages (and simpler notational variants, e.g. subsets of natural languages) for indexing the content of Web documents and representing knowledge within them. We believe that these languages have advantages over

Great number of the web documents, created by people of a great variety of walks and used by all the people being able to access to the Internet, gives rise to a problem of how to search the Internet to easily obtain what users want and to filter out what they don't. The problem is strongly

We present a HTML outliner that allows users to toggle between Web documents and their outlines. We describe three versions of the outliner developed using JavaScript. The method is distinguished by its simplicity and consequent ease of use by Web document authors. INTRODUCTION An outline

that are relevant to a pre-defined set of topics. The topics are specified not using keywords, but using exemplary documents. Rather than collecting and indexing all accessible Web documents to be able to answer all possible ad-hoc queries, a focused crawler analyzes its crawl boundary to find the links

Retrieving relevant documents over the Web is an over-whelming task when search engines return thousands of Web documents. Sifting through these documents is time-consuming and sometimes leads to an unsuccess-ful search. One problem is that most search engines rely on matching a query to documents