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Development of an Android Application for the Recognition and Translation of Words in Camera Scenes
(2012)
This bachelor- thesis describes the conception and implementation of a translation software for the Android platform. The specific feature of the software is the independent text recognition based on the view of the camera. This approach aims to enhance and accelerate the process of translation in certain situations. After an introduction into text recognition, the underlying technologies and the operation system Android useful applications are described. Then the concept of the software is created and the implementation examined. Finally an evaluation is conducted to identify strengths and weaknesses of the software.
With the reaccreditation of the degree programs in the department of computer science at the University of Koblenz-Landau new trendsetting degree programs will be offered. For further planning and design of the individual degree programs the opinion of the students is a considerable indicator. Information about the new degree programs aren"t available during the accreditation process. Students have an interest in knowing about the new degree programs and the new examination regulation and therefore being part in the decision process would be desirable. The concept of e-participation is an opportunity to satisfy this need. It offers the possibility to discuss topics of the accreditation and to bring in own ideas and opinions into the decision process. This bachelor thesis describes an e-participation project at the University of Koblenz-Landau about the accreditation of the degree programs of the faculty of computer science. By using the reference framework of Scherer and Wimmer (2011) the project will be carried out. Furthermore the accreditation process will be modeled to get a better understanding of the whole process and to identify the possibilities for e-participation project integration. The results of this project are going to be covered by an online survey about the e-participation platform. Using the results of the survey and the experiences gained after the project recommendations are given for further e-participation projects. Moreover the reference framework of Scherer and Wimmer (2011) will be analyzed critically.
Parallelmanipulatoren, welche den Stewartmechanismus nutzen, ermöglichen die präzise Ausführung von Aufgaben in einem begrenzten Arbeitsraum. Durch die Nutzung von sechs Freiheitsgraden wird eine hohe Flexibilität der Positionierung erreicht. Die robuste Konstruktion sorgt zudem für ein sehr gutes Verhältnis von Gewicht zu Nutzlast.
Diese Bachelorarbeit befasst sich mit der Entwicklung einer flexiblen Softwarelösung zur Ansteuerung einer Stewartplattform. Dies umfasst ein Modell der Plattform, welches zu Testzwecken dient. Es werden zunächst die mathematischen Grundlagen der Inversen Kinematik erarbeitet aufbauend auf einem zuvor definierten Bewegungsmodell. Es folgt die Entwicklung einer generischen Architektur zur Übermittlung und Auswertung von Steuerkommandos vom PC. Die Implementierung geschieht in C und wird in verschiedene Module aufgeteilt, welche jeweils einen Aufgabenbereich der Positionskontrolle oder der Hardwarekommunikation abdecken. Es wird zudem eine graphische Nutzeroberfläche vorgestellt, über die man die Position der Plattform manuell verändern kann. Eine automatische Ansteuerung wird im folgenden Anwendungsbeispiel beschrieben, wo die Plattform mit frequentiellen Beschleunigungswerten einer Achterbahnsimulation beliefert wird.
Regarding the rapidly growing amount of data produced every year and the increasing acceptance of Enterprise 2.0 enterprises have to care about the management of their data more and more. Content created and stored in an uncoordinated manner can lead to data-silos (Williams & Hardy 2011, p.57), which result in long search times, inaccessible data and in consequence monetary losses. The "expanding digital universe" forces enterprises to develop new archiving solutions and records management policies (Gantz et al. 2007, p.13). Enterprise Content Management (ECM) is the research field that deals with these challenges. It is placed in the scientific context of Enterprise Information Management. This thesis aims to find out to what extent current Enterprise Content Management Systems (ECMS) support these new requirements, especially concerning the archiving of Enterprise 2.0 data. For this purpose, three scenarios were created to evaluate two different kinds of ECMS (one Open Source - and one proprietary system) chosen on the basis of a short marketrnresearch. The application of the scenarios reveals that the system vendors actually face the industry- concerns: both tools provide functionality for the archiving of data arising from online collaboration and also business records management capabilities but the integration of those topics is not, or is only inconsistently solved. At this point new questions - such as, "Which datarngenerated in an Enterprise 2.0 is worth being a record?" - arise and should be examined in future research.
Procedural content generation, the generation of video game content using pseudo-random algorithms, is a field of increasing business and academic interest due to its suitability for reducing development time and cost as well as the possibility of creating interesting, unique game spaces. Although many contemporary games feature procedurally generated content, the author perceived a lack of games using this approach to create realistic outer-space game environments, and the feasibility of employing procedural content generations in such a game was examined. Using current scientific models, a real-time astronomical simulation was developed in Python which generates star and planets object in a fictional galaxy procedurally to serve as the game space of a simple 2D space exploration game where the player has to search for intelligent life.
Activity recognition with smartphones is possible by using its internal sensors without using any external sensor. First of all, previous works and their techniques will be regarded and from these works an own implementation for the activity recognition will be derived. Most of the previous works only use the accelerometer for the activity recognition task. For this reason, this bachelor thesis analyzes the benefit of further sensors, such as the magnetic field, the linear acceleration or the gyroscope. The activity recognition is performed by classification algorithms. Decision Tree, Naive Bayes and Support Vector machines will be used. Sensor data of subjects will be collected and saved by using an own developed application. This data is needed as training data for the classification algorithms.
The result is a model which represents the structure of the data. To validate the model, a test dataset will be used which is different from the training dataset. The results confirm previous works which indicated that the activity recognition task is possible by only using the accelerometer. Orientation, gyroscope and linear acceleration cannot be used for all problems of the activity recognition. Apart from that, the Decision Tree seems to be the best classification algorithm if the model has no training data of the current user.
Cloud-Computing ist aktuell ein besonderer Trend in der IT-Branche. ERP-Systeme sind in den heutigen Unternehmen ebenfalls nicht mehr wegzudenken. Durch die Analyse ausgewählter Literatur wird aufgezeigt, dass Cloud-Computing als Betriebsmodell für ERP-Systeme besonderer Untersuchung bedarf, da beim Zusammenspiel dieser Technologien noch unterschiedliche Herausforderungen geklärt werden müssen. Darauf aufbauend werden mit Hilfe von drei verschiedenen Praxispartnern Fallstudien zu deren Cloud-ERP-Lösungen erstellt, um in einem nächsten Schritt die theoretische Literatur mit den praktischen Ergebnissen zu vergleichen.
Ziel dieser Arbeit ist es mit Hilfe der Forschungsfragen, differenzierte Nutzenaspekte von Cloud-ERP-Lösungen aufzudecken und zu erklären, wie die Theorie mit praktischen Erfahrungswerten von Experten übereinstimmt. Durch die Fallstudien wird deutlich, dass sich die drei unterschiedlichen Cloud-ERP-Anbieter vor allem durch den Umfang ihrer Software und die Unternehmensgrößen der Zielgruppen im Markt differenzieren. Zusätzlich zeigt sich im Analyseteil und Fazit der Arbeit, dass über die in der Theorie identifizierten Nutzenaspekte hinaus, zusätzliche Nutzenaspekte durch die Kombination von Cloud-ERP-Lösungen generiert werden können und dass es aktuell schon eine spezielle Zielgruppe für Cloud-ERP-Lösungen gibt. Für die Zukunft bleibt abzuwarten, wie sich der Cloud-ERP-Markt weiterentwickeln wird und welche weiteren Funktionalitäten in die Cloud ausgelagert werden können, sodass sich On-Demand ERP-Systeme zu einer Konkurrenz von On-Premise-Lösungen entwickeln können.
Within the scope of this bachelor thesis, a survey targeting the alumni of the Department 4: Computer Science of the University of Koblenz-Landau was planned, realized and evaluated. The goal was to support the Task Force Bachelor Master that was in charge of the re-accreditation process of the study courses. At first, the theoretical fundament of the survey design was acquired via desk research. Moreover, the analysis of past surveys of similar character lead to getting an impression of the requirements. Under consideration of recent changes, a survey prototype was created and improved following the insights from a pre-test. Using the open source tool LimeSurvey, the final version was implemented. The platform was used as the technical basis of the survey. The recipients included members of alumni clubs as well as recent alumni from the last years.
The survey lead to insights about the satisfaction of the alumni with their study course and the study situation in general. Furthermore, the opinion regarding two new master courses, E-Government and Web Science, was requested. The feedback from four of the study courses was enough to give significant results, for the other five courses it was only possible to interpret the general statements. All in all, there was a high rate of satisfaction with the studies.
Additionally, it was possible to collect suggestions for improvements and criticism. The main topics were internationality, emphasis on study topics, freedom of choice/specialization and relevancy to practice. As a result of the survey, a recommendation was verbalized, that should lead to an improvement in quality and need of the teaching in the Department 4: Computer Science in combination with the detailed results.
The E-Government research area has gained in importance in Europe and specially Germany in the last few years, causing the number of researchers, institutes and publications to increase rapidly. This makes it difficult for outsiders to get an overview of the relevant actors in the E-Government field. This issue can be addressed by implementing a research map for the E-Government field, where all relevant actors and objects and their information are shown on the map according to their location. In order to give a complete overview, information which was valid at a certain time in the past needs to be available on the research map. This can be only achieved if the contents of the research map are historicized. This means that a new version of an object needs to be created and saved in the database, if changes occur to the object. Older versions need to be retained on the database, so that the user is able to navigate the website based on temporal information. Past experience has shown that the temporal aspects of historicization should be managed and planned during the conceptual phase of the website rather than during implementation. This Bachelor thesis proposes a concept for the E-Government research map which includes the modeling of relevant temporal dimensions needed to historicize the contents of the research map.
In this bachelor thesis a tangible augmented reality game was developed, which should have a additional benefit compared to conventional computer or augmented reality games. The main part of the thesis explains the game concept, the development and the evaluation of the game. In the evaluation the flow-experience, as measurement for the games" amusement, was analysed with a user test and the developed game was compared with other smartphone games. Also augmented reality, tangible user interface and tangible augmented reality was introduced and the advantages and disadvantages was explained. The history of augmented reality was introduced too.
The principles of project management are due to the influences of economic conditions and technological development in transition [Wills 1998 & Jonsson et al. 2001]. The increasing in-ternationalization, shortened time to market, changing labor costs and the increasing involve-ment of professionals distributed geographical locations are drivers of the transformations of the project landscape [Evaristo/van Fenema 1999]. Resulting from this, the use of collabora-tive technologies is a crucial factor for the success of a project. [Romano et al. 2002]. Previous research on the use of collaborative technologies for project management purposes focuses especially the development of model-like, universal system architectures to identify the requirements for a specially designed collaborative project management system. This thesis investigates the challenges and benefits that arise when an organisation imple-ments business software for the purpose of collaborative project management.
This paper critically examines the Google Calendar. For this purpose, the offered functions of the core product are studied on privacy aspects. On one hand, it is identified, to which extent the product could infringe the users" privacy, on the other accuring risks are discussed. Furthermore, the functions in terms of their use for both, the service provider Google and for the user, are considered. A detailed analysis demonstrates the critical aspects, in which we have to decide between privacy and functionality. The identified solutions to minimize discussed risks of IT security mechanisms, are presented, discussed and analyzed in terms of their feasibility. Afterwards the individual solutions are summarized in a security concept and other requirements are explained. Finally, a Firefox-Addon which implements the described solution concept should be created, to resolve the existing weaknesses to the best of its ability. Ultimately, the functionality of the addon with technical implementation is illustrated in detail.
This thesis addresses the implementation of a particle simulation of an explosion. The simulation will be displayed via ray tracing in near real time. The implementation makes use of the openCL standard. The focus of research in this thesis is to analyse the performance of this combination of components.
The measurement of the benefits of collaborative technologies is a challenge caused by sociological influences on these systems. In this work, the introduction of a collaborative system into an existing IT environment is examined, so that a value can be identified for the company. The analysis of frameworks has shown that the benefits can be reaped through better management and organization of in-company resources and optimization of the underlying process.
Die wesentliche Zielsetzung der Bachelor-Arbeit war es, entlang der Anforderungen an DMS/WMS aus dem DOMEA-Konzept und aus dem Kommunalen Gebietsrechenzentrum Koblenz (KGRZ) verschiedene Systeme zu evaluieren. Weiteres Ziel war es, ein System, das die Anforderungen am besten erfüllt, zu identifizieren. Entlang der Evaluation wurde exemplarisch der Workflow des KGRZ untersucht, bewertet und ggf. angepasst. Des Weiteren wurde auf die Frage eingegangen, ob ein einheitliches System im Rahmen des Föderalismus nicht nur in Koblenz sondern auch Rheinland-Pfalz weit eingesetzt werden kann, oder ob ämterspezifische Lösungen vorteilhafter sind.
Especially e-government projects have a complex stakeholder structure: governments, businesses, non-profits and private stakeholders in different forms and roles are involved or affected by e-government projects. Consequently, the success of ICT projects critically depends on the integration of different stakeholder groups in the design processes of e-government solutions. In this context, stakeholder participation is sought therefore useful initiatives like open government and good governance drive this process forward. Although it is important to analyze the objectives, expectations and power characteristics of project participants and project stakeholders, the determinations of the stakeholder groups through a so called stakeholder analysis are insufficiently methodically developed.
The aim of this bachelor thesis is to pick up the stakeholder theories, stakeholder participation theories, stakeholder analysis and transfer it to an administrative level as well as to check their applicability. This will be done by explaining and systematizing appropriate procedures for the classification and mapping of stakeholder groups, through well-known stakeholder theories of Freeman, Mitchel and Rowley. In order to generate recommendations for future e-government projects, the application of stakeholder theories in two e-government projects with stakeholder involvement will be reviewed. It is also important to work out how stakeholder groups can be actively involved in the developmental processes in concrete e-government projects by using Web 2.0 possibilities. The role of Web 2.0 applications as an additional channel of communication and participation tool will be presented and evaluated.
The result is a guide, which supports successful participation of stakeholders in projects, by analyzing the process for stakeholder identification, stakeholder grouping and prioritization and showing instructions and benefits for using Web 2.0.
The advantage of virtual networks is to test routing-algorithms or distributed software in an easy-to-use, cheap and well-arranged way. Optimized Link State Routing (OLSR) and Babel are two modern routing-algorithms for mobile ad-hoc networks that distinguish faulty links from good link connections in their routing process. Typically virtual networks provide nearly perfect link connections without any network traffic disruptions. The Traffic Control (tc) tool is able to manipulate connections in terms of delay and packet loss.
In this bachelor thesis virtual network scenarios are created with VNUML and Qemu and manipulated with tc in order to analyze the behavior of ad-hoc routing algorithms like Babel and OLSR. The behavior of well-known TCP congestion control algorithms, e.g., TCP Vegas and TCP Reno are analyzed, too.
The goal of this Bachelor thesis is to implement and evaluate the "Simulating of Collective Misbelief"-model into the NetLogo programming language. Therefore, the model requirements have to be specified and implemented into the NetLogo environment. Further tool-related re-quirements have to be specified to enable the model to work in NetLogo. After implementation several simulations will be conducted to answer the research question stated above.
This Thesis deals with the state of Customer Relationship Management (CRM) in companies and the opportunities that are offered by these. The motivation for this thesis results from the request to classify the value of CRM. Furthermore, we want to do a research on how far a CRM-System is able to support and improve company processes. In addition, we want to get an overview of possible conditions that are linked with such a system. For the use case the motivation follows from the opportunity to optimize inefficient processes. As a result, this thesis tries to present perspectives which can improve company processes; moreover conduce to a bigger value creation.
This thesis covers in detail with customer-related processes of the company Alere and its quality in terms of the prospective implementation of a CRM-System. As there are only a few standard requirements for the processes, it is not possible to make a statement about process quality. These circumstances need a tool that is able to fulfil specified requirements. This gap shall be closed by a CRM-System. If we want to close this gap efficiently we first have to research the actual customer-related processes with the aim to specify the new system requirements.
The thesis shall deliver an insight into the topic with the goal to show the advantages of a CRM-System. Additionally, the identification of weak points, based on the use case and the motivation follows. With these data we will optimize the customer-related processes based on the CRM-System functions. Several departments of the company have contact with the customers. Because of this fact the focus lies on documentation, central data storage and loss-free communication between customers and staff and among the staff. The thesis shall deliver different results. First of all, a catalogue of requirements for the customer-related processes which bases on the basics.
Furthermore, the modelling of the customer-related processes. In addition a catalogue of the weak points of the customer related processes and after that a specification of requirements for the CRM-System to optimize the customer-related processes.
Finally the thesis shall generate the modelling of the optimized customer-related processes. The last result the thesis shall deliver is the discussion and conclusion.