Diese Arbeit zeigt ausgehend von einer Darstellung der theoretischen Grundlagen automatischer Textklassifikation, dass die aus der Statistical Learning Theory stammenden Support Vector Machines geeignet sind, zu einer präziseren Erkennung unerwünschter E-Mail-Werbung beizutragen. In einer Testumgebung mit einem Corpus von 20 000 E-Mails wurden Testläufe verschiedene Parameter der Vorverarbeitung und der Support Vector Machine automatisch evaluiert und grafisch visualisiert. Aufbauend darauf wird eine Erweiterung für die Open-Source-Software SpamAssassin beschrieben, die die vorhandenen Klassifikationsmechanismen um eine Klassifikation per Support Vector Machine erweitert.

Darbe tyrinėjama veiklos taisyklių koncepcija ir jos taikymas projektuojant informacijos sistemas. Pagrindinis tyrimo objektas yra kompiuterizuotas grafinis veiklos taisyklių modeliavimas informacijos sistemų projektavimo stadijoje. Tyrimo tikslas: atskleisti grafinio VT modeliavimo greta UML galimybes, sukuriant ir išbandant modifikuotu Roso metodu grindžiamą MagicDraw UML įrankio įskiepį, kuris leistų modeliuoti veiklos taisykles, užmezgant ryšius tarp taisyklių ir esamomis MagicDraw UML priemonėmis sukurtojo duomenų modelio (klasių diagramos) elementų. / Information system (IS) modeling is popular and constantly developing. However there is a wantage for solutions of realization of computer engineering activities in the business rules based methods. One of the most prominent of this kind of methods is the Ross method, allowing the creation of formal business rules graphic models. This work specifies and implements business rules modeling tool, which use Ross method, into computer engineering tool MagicDraw UML as plugin.

The diploma thesis deals with current problems of person identification and deep learning. Furthermore, the work deals mainly with obtaining quality and diverse data that are used to train deep learning with convolutional neural networks for face recognition. There is very little public access to such data, so the practical part focuses on creating the MakeHuman plugin that will generate a database of random face images. It is possible to generate faces according to five different scenarios in which purely random faces or faces where the same can be seen with modifications such as different hair, beard, hat, glasses and more are created. The scenarios also allow you to generate faces with some expressions or faces as they age. You can set some parameters that give the appearance of the resulting database in the plugin. This can include face images from different angles of rotation, zooming and lighting.

The theoretical part of this master's thesis is focused on research of confocal microscopy and FLIM method. There are a principles and types of confocal microscopy and the use of broad-spectrum laser as a basic light source of these microscopes. It gives what the FLIM method and its use not only in cell biology. The practical part thesis includes the acquisition of three sets of fluorescence intensity images with use of applications tunable pulsed laser, function TimeGate and detection of hybrid detectors. For practical elaboration of this thesis is in the software Fiji created a plugin, which is the source code in the Java programming language. The types of plugins and their uses are described in the third chapter of the thesis. This plugin including the graphical user interface in the form of the dialog box, proceses the fluorescence intensity images and creates a graphical representation of data showing the fluorescence lifetime, so called pseudocolor map.

This diploma thesis deals with digital sound synthesis. The main task was to design and implement new sound synthesizer. Created tool uses different approaches to the sound synthesis, so it can be described as a hybrid. Instrument design was inspired by existing audio synthesizers. For implementation, C++ language and VST technology from Steinberg are used. As an extension, a module, that can process voice or text input and then build a MIDI file with melody (which can be interpreted with using any synthesizer) was designed and implemented. For this module, Python language is used. For the synthesizer, a simple graphical user interface was created.

The process of visualizing n-D data presents the user with four problems: finding a hyperdimensional graphics package capable of rendering n-D data, finding a suitable presentation technique supported by the package that allows insight to be gained, using the provided user interface to interact with the presentation technique to explore the information in the data, and finding a way to share the information gained with others. Many graphics packages have been written to solve the first problem. However, existing packages do not sufficiently solve the other three problems. A hyperdimensional graphics package that sufficiently solves all these problems simplifies the user experience and allows the user to explore, interact with, and share the data. I have implemented a package that solves all four problems. The package is able to render n-D data through appropriate encapsulation of presentation techniques and their associated visual cues. Through the use of an extensible plugin system, presentation techniques can be easily added and accommodated. Desirable features are supported by the user interface to allow the user to interact easily with the data. Sharing of visualizations and annotations are included to allow users to share information with one another. By providing a hyperdimensional graphics package that easily accommodates presentation techniques and includes desirable features, including those that are rarely or never supported, the user benefits from tools that allow improved interaction with multivariate data to extract information and share it with others.

Context Autodesk Maya is currently an industry-leading 3D-modelling software. It has a multitude of features that enables the modification of mesh topology. However, it doesn't have native support for remote topology exchange via a network connection. Objectives The objective of the research is to find a solution for online topology exchange between two users within Autodesk Maya using a peer-to-peer connection. Methods The presented research implements such a feature by exploring and evaluating different possibilities. Thereafter a user evaluation is executed to measure the efficiency of the developed solution against an already existing solution. Results The results show that online topology exchange could be implemented by utilizing the Maya C++ API, a peer-to-peer TCP connection, and a custom-made topology exchange system. The user evaluation shows that the developed solution is less time-efficient than an already existing method. Conclusion Online topology exchange was and could be developed. While it worked as expected, it contained several problems identified during the user evaluation. This resulted in it being slower than an already existing solution. However, the implementation could potentially be improved to reduce the time.

В работе рассмотрено влияние внедрения инструментов автоматизации в процесс проектирования инженерных систем. Произведена оценка эффективности от интеграции расчетов в процесс создания информационной модели систем отопления, теплоснабжения, вентиляции. Рассмотрено использование скриптов как вспомогательных инструментов для адаптации работы плагинов автоматизации. Приведены возможные сценарии и перспектива развития по разработке и дальнейшему использованию других инструментов Dynamo. / The paper considers the impact of the introduction of automation tools in the process of designing engineering systems. An assessment of the effectiveness of integrating calculations into the process of creating an information model of heating, heat supply, and ventilation systems was made. The use of scripts as auxiliary tools for adapting the work of automation plugins is considered. Possible scenarios and development prospects for the development and further use of other Dynamo tools are given.

Finding a way to automate the generation of test data is a crucial aspect of software testing. Testing comprises 50% of all software development costs [Korel90]. Finding a way to automate testing would greatly reduce cost and labor involved in the task of software testing. One of the ways to automate software testing is to automate the generation of test data inputs. For example, in statement coverage, creating test cases that will cover all of the conditions required when testing that program would be costly and time-consuming if undertaken manually. Therefore, a way must be found that allows the automation of creating test data inputs to satisfy all test requirements for a given test. One such way of automating test data generation is the use of genetic algorithms. Genetic algorithms use the creation of generations of test inputs, and then choose the most fit test inputs, or those test inputs that are most likely to satisfy the test requirement, as the test inputs that will be passed to the next generation of inputs. In this way, the solution to the test requirement problem can be found in an evolutionary fashion. Current research suggests that comparison of genetic algorithms with random test input generation produces varied results. While results of these studies show promise for the future use of genetic algorithms as an answer to the issue of discovering test inputs that will satisfy branch coverage, what is needed is additional experimental research that will validate the performance of genetic algorithms in a test environment. This thesis makes use of the EvoSuite plugin tool, which is a software plugin for the IntelliJ IDEA Integrated Development Environment that runs using a genetic algorithm as its main component. The EvoSuite tool is run against 22 Java classes, and the EvoSuite tool will automatically generate unit tests and will also execute those unit tests while simultaneously measuring branch coverage of the unit tests against the Java classes under test. The results of this thesis’ experimental research are that, just as the literature indicates, the EvoSuite tool performed with varied results. In particular, Fraser’s study of the EvoSuite tool as an Eclipse plugin was accurate in depicting how the EvoSuite tool would come to perform as an IntelliJ plugin, namely that the EvoSuite tool would perform poorly for a large number of classes tested.

Statistical data from clinical studies indicate that the death rate caused by heart disease has decreased due to an increased use of evidence-based medical therapies. This includes the use of magnetic resonance imaging (MRI), which is one of the most common non-invasive approaches in evidence-based health care research. In the current work, I present 3D Lagrangian strains and torsion in the left ventricle of healthy and isoproterenol-stimulated rats, which were investigated using Displacement ENcoding with Stimulated Echoes (DENSE) cardiac magnetic resonance (CMR) imaging. With the implementation of the 12-segment model, a detailed profile of regional cardiac mechanics was reconstructed for each subject. Statistical analysis revealed that isoproterenol induced a significant change in the strains and torsion in certain regions at the mid-ventricle level. In addition, I investigated right ventricular cardiac mechanics with the methodologies developed for the left ventricle. This included a comparison of different regions within the basal and mid-ventricular regions. Despite no regional variation found in the peak circumferential strain, the peak longitudinal strain exhibited regional variation at the anterior side of the RV due to the differences in biventricular torsion, mechanism of RV free wall contraction, and fiber architecture at RV insertions. Future applications of the experimental work presented here include the construction and validation of biventricular finite element models. Specifically, the strains predicted by the models will be statistically compared with experimental strains. In addition, the results of the present study provide an essential reference of RV baseline evaluated with DENSE MRI, a highly objective technique.