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One of the key challenges to realize automated processing of the information on the Web, which is the central goal of the Semantic Web, is related to the entity matching problem. There are a number of tools that reliably recognize named entities, such as p ...
Continuous processing of top-k queries over data streams is a promising technique for alleviating the information overload problem as it distinguishes relevant from irrelevant data stream objects with respect to a given scoring function over time. Thus it ...
Ranking queries, which return only a subset of results matching a user query, have been studied extensively in the past decade due to their importance in a wide range of applications. In this thesis, we study ranking queries in novel environments and setti ...
We introduce WaRR, a tool that records and replays with high fidelity the interaction between users and modern web applications. WaRR consists of two independent components: the WaRR Recorder and the WaRR Replayer. The WaRR Recorder is embedded in a web bro ...
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We consider the applicability of terms extracted from anchortext as a source of Web page descriptions in the form of tags. With a relatively simple and easy-to-use method, we show that anchortext significantly overlaps with tags obtained from the popular t ...
The current Social Web is centralized. Large information silos store all the users’ profiles, their social links and much of the other personal data. In return for the reliable service the users allow their data and activities to be data mined by the servi ...
eLogbook is a new Web 2.0 social software framework developed in the Swiss Federal Institute of Technology in Lausanne (EPFL, Switzerland) to provide collaborative Web services in an open academic environment for higher education. Several cross platform We ...
eLogbook is a Web-based collaborative environment designed for communities of practice. It enables users to manage joint activities, share related assets and get contextual awareness. In addition to the original Web- based access, an email-based eLogbook i ...
The organic growth of the web has led to web sites that exhibit a large variety of properties. We conduct a large- scale study to gain quantitative insights into the browser-side effects of the structure and behavior of thousands of the most popular web si ...
The World Wide Web is one of the most widely used information resources. Understanding the web better will enable us to benefit more of it. In this thesis we develop techniques to learn the properties of the web pages like language and topic using only the ...