Theses

Here you can find theses of Know-Center employees

Visualizing Research Fields based on Scholarly Communication on the Web

Dissertation Peter Kraker 2014

In science, information overload is not a contemporary issue. At the beginning of a scientific study, it is therefore usually quite cumbersome to get an overview of a research field. In this thesis, I aim to address this problem of classic literature search with visualizations based on scholarly communication on…

A User-centered Approach to Information Quality Assessment in Social Software Systems

Dissertation Nicolas Weber 2012

Over the past decade, the enormous increase in user generated content on the Web has provided an inexhaustible source of information, so much so that being able to find or locate a required piece of information has become more and more like finding a needle in a haystack. The problem…

Content Facets for Individual Information Needs in Media

Dissertation Elisabeth Lex 2011

The amount of content published in traditional media is huge and steadily growing. Additionally, social media gained momentum since people use blogs to share comments and opinions to current events. However, blog content is questionable in respect to quality since blogs are neither reviewed nor edited. From the media consumer…

Focused Crawling in the Context of Digital Libraries

Thesis (old curriculum) Andreas Juffinger 2011

Automated document development within digital libraries and also the World Wide Web is gathering increasing momentum. Focused Crawling aims to retrieve relevant documents and has been primarily used in combination with search engines to build topic specific indexes. Automated crawling can also assist people to find data on the World…

Authentifizierung in Netzwerken unter Verwendung eines Single Sign-On Systems

Thesis (old curriculum) Alexander Plaschke 2009

Usage of distributed network services and applications has recently become an integral element in daily corporate business as well as in private use. Nevertheless, users have to interact and communicate with a variety of systems, each one using its own dedicated identification mechanism. Over a certain period of time users…

Social-focused Network Analysis of User Goals Extracted from a Large Search Query Log

Master's thesis Christian Körner 2009

Search engines represent a primary instrument for users of the World Wide Web to express their informational needs. However, during the process of search query formulation, the original intention behind a search query is often lost. This master's thesis aims to address this problem by studying the construction of different…

Anwendung von Data Mining Techniken in der Handels- und Versicherungsbranche

Dissertation Anna Kohlmayr 2009

In this work, we focus on business application of data mining techniques and cover a wide spectrum of approaches, methods and techniques falling under the umbrella of data mining. Many concepts are illustrated on examples that come from our own experience and practical work in the field. Giving a state-of-the-art…

AD-HOC - Eine Methodik zur Entwicklung von virtuellen Lern-Arbeitsumgebungen

Dissertation Johannes Farmer 2006

Organizations rely heavily on their knowledge workers to learn efficiently and to apply knowledge effectively within their work processes. Hence virtual work-and-learning environments are needed that support newcomers and experienced workers in equal measure and provide task-specific learning support ad hoc. However, by now contextualized learning support is costly, because…

Semiautomatische Erstellung von Wissenslandkarten mittels Knowledge Mining Techniken

Thesis (old curriculum) Thomas Neidhart 2005

By the abundance of existing information the need after a suitable structuring of this data flood arises to facilitate a respective user/system in extracting knowledge or to make it possible at all. The first step to structure given data-sets consists in finding and defining suitable concepts which are used to…

Semantische Darstellung und Abfrage von Rechtsnormen am Beispiel Hochschulrecht

Thesis (old curriculum) Michael Hausenblas 2004

The motivation for this work is driven by solving the problem of retrieving relevant legal fragments in the realm of the austrian academic law starting from the statement of affairs. This can be seen as the legal process of subsumption, i.e. to find a passage in a law text that…

Classification of Hierarchical Document Spaces Using Machine Learning Technologies

Thesis (old curriculum) Michael Granitzer 2003

Due to the permantently growing amount of textual data, automatic methods for organizing the data are required. Automatic text classification is one of these methods. Based on the textual content of the document, it automatically assigns documents to a predefined set of classes. Normally, the set of classes is hierarchically…

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