Many Web 2.0-based social networking sites permit their users to post comments containing a variety of HTML tags on other users’ profiles. In this paper, we show that allowing arbitrary users to post multimedia HTML content on other users’ social network profiles is an attack vector. Specifically, we demonstrate three attacks— the Social-DDoS attack, the Social-C&C attack, and the Browserchokin...

The World Wide Web (WWW) incorporates a huge potential for collaborative working. This paper focuses on Web page annotations that can enhance group–working on the Web drastically. A model of Web page annotations is introduced that defines relations between the users, the Web pages and their annotations. It is taken together with technological restrictions of existing approaches to form a taxono...

An important characteristic of a Web page|the number of objects embedded in it|is di cult to obtain using publicly available sources of Web characterization data, such as proxy and server traces. It is important, however, to have an estimate for the number of embedded objects found in Web pages for modeling of realistic Web sites and workloads. We analyzed two data sets collected using active m...

BACKGROUND The South African Vaccination and Immunisation Centre receives many requests to explain the validity of internet-based anti-vaccination claims. Previous global studies on internet-based anti-vaccination lobbying had not identified anti-vaccination web pages originating in South Africa (SA). OBJECTIVE To characterise SA internet-based anti-vaccination lobbying. METHODS In 2011, se...

The aim of this study is to explore to what degree hyperlinked external resources contribute to the automated subject-related term indexing. Empirical evidence shows no additional enhancement of performance with the additional resources. It also implies that target Web pages are closer in subject to siting pages than sited pages. Résumé : L’objectif de cette étude est d’explorer à quel degré le...

This dissertation studies the challenges and issues faced in implementing an effective Web crawler. A crawler is a program that retrieves and stores pages from the Web, commonly for a Web search engine. A crawler often has to download hundreds of millions of pages in a short period of time and has to constantly monitor and refresh the downloaded pages. In addition, the crawler should avoid putt...

Web navigation patterns discovered from usage data can be used to build prediction model to recommend interesting web pages to the users. A user session may have one or more transactions. Identification of transactions or user behaviors from session data is difficult because web pages cannot be classified strictly as navigation or content pages. In order to identify transactions from log data, ...

Most of traditional relevance feedback systems simply choose top ranked Web pages for a query as the source of providing the weights of candidate query expansion terms for the query. However, the whole contents of such top-ranked Web pages are usually mixed with sub-topically distinguishable contents that are too heterogeneous to be directly used to extract good quality candidate query expansio...

Computer Science departmental Web pages of universities usually portray the gist of their academic activities, with special emphasis on fields of research, faculty strength with their respective specialties and research labs. By text mining the departmental Web pages and individual faculty Web pages, we can get a better idea of the actual strengths and weaknesses of the specific department. Thi...

We propose to mine parallel texts from mixedlanguage web pages. We define a mixedlanguage web page as a web page consisting of (at least) two languages. We mined Japanese-English parallel texts from mixedlanguage web pages. We presented the statistics for extracted parallel texts and conducted machine translation experiments. These statistics and experiments showed that mixedlanguage web pages ...