World Wide Worms

Internet Worms as Internet-wide Threat

A computer worm is a program that propagates itself over a network, reproducing itself as it goes. Because of the recursive structure of this propagation, the spread rate of worms is very fast and poses a big threat on the Internet infrastructure as a whole. Modern worms are capable of gaining control over a substantial portion of the Internet hosts within several minutes. No human mediated res...

Revidovaná Architektúra World Wide Web­u (revised World Wide Web Architecture)

na získanie vedecko-akademickej hodnosti philosophiae doctor vo vednom odbore: 25-21-9 Počítačové prostriedky a systémy Bratislava, december 2008

2 THE WORLD WIDE WEB 32 The World Wide

The rapid growth of the World Wide Web (WWW), a distributed hypermedia system implemented on the Internet, has led to simple and widespread access to vast repositories of information. In contrast to much ongoing WWW work that has focussed on access to structured and unstructured data (text, images etc.) repositories, we analyze the problem of accessing repositories of \computable" information (...

World Wide Web

Querying the World Wide

1 The World Wide Web is a large, heterogeneous , distributed collection of documents connected by hypertext links. The most common technology currently used for searching the Web depends on sending information retrieval requests to "index servers" that index as many documents as they can nd by navigating the network. One problem with this is that users must be aware of the various index servers...