Theses

Here you can find theses of Know-Center employees

Aspects of User Motivation in Social Tagging Systems

Dissertation Christian Körner 2012

Tagging describes the process of annotating resources with terms - so called "tags" - in order to enable better organization, retrieval and sharing of information. Today, a large number of diverse applications exist that allow users to annotate digital information from their libraries on the web. These systems are referred…

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…

Discovery, Triplification and Consumption of Pertinent Resources from Linked Open Data

Dissertation Atif Latif 2011

Linked Data provides a framework for the generation, publishing and sharing of information by use of semantic technologies. The Linking Open Data initiative plays a vital role in the realization of the Semantic Web at a global scale by publishing and interlinking diverse data sources on the Web. The access…

User Model Serivces for Adaptive Work-integrated Learning

Master's thesis Günter Beham 2011

A major challenge when designing software for work-integrated learning (WIL) is that the system provides real-time learning support adapted to a user’s situation and background knowledge (adaptive system). In order to adapt to the user’s situa- tion and characteristics, a user model is needed that is continuously updated to the…

Analysis of Sequences of Machine States

Master's thesis Martin Stimpfl 2010

Data Mining is a keyword for methods and algorithms which are more and more evolving and raising expectations in many fields of information technology nowadays. Computer-aided "mining" for complex correlations in huge bulks of data is a topic of particular interest for a software company from Graz being engaged in…

Evaluierung web-basierter 3D-Technologien

Master's thesis Markus Bader 2010

People are confronted with an ever increasing amount of information each day, therefore meaningful information visualisations become more and more important. High quality 3D contents can be found on the web more often, due to faster computer hardware and higher internet bandwidth. So information visualisations on the web provide an…

Visualisierung und dynamische Aggregierung von semantischen Graphen

Master's thesis Martin Kandlhofer 2010

The enormous growth of data and content over the last few years resulted in large amounts of complex information hosted on heterogeneous systems. Semantic technologies, which have seen rapid adoption in recent years, employ a formalized, machine-understandable representation of knowledge to facilitate sharing and reuse of the stored information and…

Umsetzung einer Web 2.0 Plattform zur Diskussion von strukturierten Inhalten

Master's thesis Philipp Ast 2010

As more and more companies spread and get connected externally, a huge part of the key success factors is located beyond their own sphere of action. For success in management, it is more important than ever to collect information about the views and objectives of one's core partners and stakeholders…

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…

SOA in e-Government: SOA Methoden für die Integration von e-Government Backoffice Systemen

Thesis (old curriculum) Arian Mavriqi 2008

E-Government programs are constantly evolving. This evolution is driven by demands of todays information society and innovation in the field of information and communication technologies (ICT). E-Government is also transforming public administration compartmentalized structure into a unified environment in which public institutions collaborate instead of only coexisting. The aim of…

Assoziative Suche für das Semantic Web - Ein netzbasierter Suchansatz unter Berücksichtigung semantischer und inhaltsbasierter Ähnlichkeiten

Dissertation Peter Scheir 2008

While in the current Web information is largely gathered by humans, the Semantic Web aims at having this task performed by computer programs. To achieve this goal information on the Web is enriched with machine-interpretable data that allows for identifying the meaning (semantics) of information on the Web. Approaches to…

Konzeption und Entwicklung eines generischen Wissenserschliessungsframeworks

Dissertation Michael Granitzer 2006

Steadily increasing information amounts require new ways and techniques for making knowledge efficiently and goal oriented utilisable. The lack of structure in information, the incomplete allocation of metadata, and the vagueness of human language make things even more difficult. For making information utilisable for different user groups, various techniques from…

Erfassen von Benutzerkontextinformationen mit AJAX

Thesis (old curriculum) Karl Köberl 2006

As a result of the huge amount of information in the recent years it is hard for a user to find important information. A solution is to use personalized systems in an intranet system or an Internet application. For a personalized system a user model is needed. To get a…

Technology-Enhanced Workplace Learning: Modelling Competence and Performance for the Case of Requirements Engineering

Thesis (old curriculum) Barbara Kump 2006

From a psychological point of view, two models are required for the construction of an adaptive learning environment for informal, self-directed work-integrated learning (e.g., APOSDLE): the Knowledge Base, a model of the structured expert knowledge of a domain, and the S tudent Model, a model of the competencies of the…

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