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…

Usage-based Calculation of Knowledge Maturing Indicators for Digital Resources in a Personal and Organizational Learning and Maturing Environment

Master's thesis Dieter Theiler 2012

Research in the field of ‘Knowledge Maturing’ focuses on improving knowledge construction processes within organizations. As guidance of knowledge workers plays an important role when it comes to developing knowledge, tools are sought to foster ‘Knowledge Maturing’-related activities. In this master thesis, ‘Knowledge Maturing Indicators’ get calculated upon traces of…

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…

Rule-based test data extraction for training machine learning algorithms

Bachelor's thesis Florian Salbrechter 2011

In this thesis we examine the automatic generation of training data in order to train a machine learning algorithm. We will use a rule-based approach to generate the training data which is build using the GATE Natural Language Processing framework. The machine learning algorithm is using a statistical model, the…

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…

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…

Analyse und Kategorisierung von Twitter Feeds

Master's thesis Christopher Horn 2010

Social networks like Twitter are the latest trend in the globalized world. Twitter is used in different scenarios by a broad set of different users. Mining their messages may reveal valuable information. In this thesis, we propose a way to automatically classify Tweets (and thus the users) using a supervised…

Relevanz-Feedback in Information Retrieval Systemen

Thesis (old curriculum) Peter Prettenhofer 2009

This thesis explores the use of connectionist models for adaptive information retrieval. In general, adaptive information retrieval refers to the process of adapting the search towards the users context and need (cf. [Joho et al., 2008]). In particular, the goal of an adaptive information retrieval system is to improve retrieval…

Erfassung semantischer Informationen aus enzyklopädischen Daten

Master's thesis Andreas Augustin 2008

In the last years the amount of data has been massivly growing and keeps on growing, hence it became necessary to develop new methods to overcome this large amount of data. Besides the search capability improvements, one of the main forces in current research on data mining is the need…

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…

Managementreporting mittels Java SOA Framework

Thesis (old curriculum) Mario Prettner 2008

Business management do have to make decisions. Key data and operating figures are building the main support rising these challenges. But the enormously growth of transactional data mostly stored in databases with enhancement of functionality of software systems at the same time, reuse and expandability of software components or libraries,…

Metadaten im Kontext Wissenserschließung

Dissertation Mathias Lux 2006

Metadata is a broad term ranging from simple attribute structures describing data to huge and complex ontologies trying to formalize the knowledge about a resource. In knowledge discovery the extracted knowledge has to be codified and used for retrieval and inference. One major aspect is the comparison of knowledge and…

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…

Automatische Orchestrierung von Knowledge Discovery Services

Dissertation Werner Klieber

Knowledge discovery processes need to be flexibly configurable for various domain scenarios. This includes the specification of the tasks, their orchestration, integration and optimising. Modelling of such processes allows an implementation independent and intuitive usage. However, for complex tasks it becomes difficult to select the appropriate services and put them…

Locating lost items using motion sensing on smartphones

Master's thesis Martin Daum

Everyone knows the annoying situation when personal items of appreciated value are disappeared and several precious minutes, or even hours, are was- ted for frantic searching. Modern technologies are useful for assisting in such moments. For example electronic key finders triggered by whistling ore remo- te controls are available over…

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