Submitted by Erika Demachki (erikademachki@gmail.com) on 2014-09-22T21:46:54Z No. of bitstreams: 2 Keila Sousa Silva.pdf: 7076994 bytes, checksum: b2ae0f0393e80451a0c468e865f49847 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2014-09-23T15:39:04Z (GMT) No. of bitstreams: 2 Keila Sousa Silva.pdf: 7076994 bytes, checksum: b2ae0f0393e80451a0c468e865f49847 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2014-09-23T15:39:04Z (GMT). No. of bitstreams: 2 Keila Sousa Silva.pdf: 7076994 bytes, checksum: b2ae0f0393e80451a0c468e865f49847 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2013-09-23 / This study aims to optimize runtime performance of a system developed to aid the diagnosis of childhood pneumonia by computer. This system, called Pneumocad according Macedo (2012), aims to identify chest radiographs consistent with the disease using computational techniques for recognizing patterns in textures through decomposition of the transformed wavelets, features extracted from the decomposition and classi cation applied to radiographs. In pursuit of this optimization in terms of performance at runtime, insertion of new rays and the recovery of their radiographs similar, we used the proposed deployment of a cluster architecture of radiographs already stored in the database Pneumocad. In parallel , functionality, responsible for de ning how a radiograph is similar to another , were transferred from the source code Java to views in the database. The experiments were performed on databases that contained 183, 2.568 and 10.200 radiographs and using the Pneumo- cad of Macedo (2012) , the Pneumocad Optimized with views and without grouping and Pneumocad Optimized with views and grouping. The experiments and results show that the proposed optimization contributed to the evolution of Pneumocad and enhanced this tool to support the diagnosis of pneumonia in childhood. / O presente estudo propõe a otimizaçao de desempenho de tempo de execu ção de um sistema desenvolvido para auxiliar o diagn ostico de pneumonia infantil por computador. Esse sistema, denominado Pneumocad, segundo Macedo (2012), visa identi car radiografi as de t órax compatí veis com a doen ça utilizando t écnicas de reconhecimento computacional de padrões em texturas por meio da decomposi ção das transformadas wavelets, das caracter sticas extra das das decomposi ções e da classi ca ção aplicadas as radiogra as. Em busca dessa otimiza ção, em termos de desempenho em tempo de execu ção, na inser ção de novas radiogra fias e na recupera ção de suas radiogra fias similares, utilizou-se a proposta da implanta c~ao de uma arquitetura de agrupamento das radiogra fias j a armazenadas na base de dados do Pneumocad. Em paralelo, as funcionalidades, respons aveis por de finir o quanto uma radiogra fia e similar a outra, foram transferidas do c odigo-fonte Java para views na base de dados. Os experimentos foram executados sobre bases de dados que continham 183, 2.568 e 10.200 radiogra fias e utilizando o Pneumocad de Macedo (2012), o Pneumocad Otimizado com views e sem agrupamento e o Pneumocad Otimizado com views e com agrupamento. Os experimentos e resultados mostram que a otimiza c~ao proposta contribuiu para a evolu ção do Pneumocad e aprimorou essa ferramenta que visa apoiar os diagn osticos de pneumonias na infância.

My diploma thesis is focused on creating an application for Electronic Register of Sales. The main sense of the application is to facilitate an implementation to e-shops, which were created on so-called "Greenfield". This application is supposed to help programmers in their work, because the most complex logic will be done by the app. Another big advantage of it is saving money to the e-shop owners. The implementation of my solution is more time saving than the implementation which is provided by Financial administration of the Czech Republic. The first part of my thesis is concentrated on Electronic Register of Sales issue. It's following by a description of technology and tools which I used for the app development. The selected technology and tools are the most modern and widely used nowadays. The end of the theoretical part is about introducing e-shop Tisknisi.cz In the practical part of the thesis I described the "E-EET" application and compiled its structure in terms of frontend and backend. Then I explained its technical solution. Code samples are accompanied by explanations. A phase "implementation solution" is described by POST request method. I've designed a price policy to ensure the profitability of "E-EET" application by myself.

The purpose of this paper is to clarify the differences in latency between PostgreSQL and MongoDB as a consequence of their differences in software architecture. This has been achieved through benchmarking of Insert, Read and Update operations with the tool “Yahoo! Cloud Serving Benchmark”, and through source code analysis of both database management systems (DBMSs). The overall structure of the architecture has been researched with Big O notation as a tool to examine the complexity of the source code. The result from the benchmarking show that the latency for Insert and Update operations were lower for MongoDB, while the latency for Read was lower for PostgreSQL. The results from the source code analysis show that both DBMSs have a complexity of O(n), but that there are multiple differences in their software architecture affecting latency. The most important difference was the length of the parsing process which was larger for PostgreSQL. The conclusion is that there are significant differences in latency and source code and that room exists for further research in the field. The biggest limitation of the experiment consist of factors such as background processes which affected latency and could not be eliminated, resulting in a low validity.

The goal of this thesis is to optimize the existing energy consumption monitoring system and expand the presentation options for the measured data in a way that would be suitable for large volume of data and a long period of time. Optimization concerns especially data processing and data presentation.

This thesis is focused on cybercrime, acquisition of evidence and development of a platform for retrieval, analysis and archiving web site data. The goal is to satisfy the investigators and security experts of the Czech police. The aim is to provide an open source platform that will be freely disseminable and in compliance with the requirements of legal institutions. The output of the thesis is two platform versions - full-fledged, fulfilling all the requirements set out in the diploma thesis and a light version for the police investigators of the Czech Republic.

The aim of this thesis is to analyze, design and implement solution for selling merchandise, which sellers can be used with commonly used hardware, free in basic package and they should be able to handle system setup. As a result, sellers can avoid new operating costs. The system will run as a service on Heroku servers. The front-end and back-end is implemented in JavaScript, front-end also uses React. GraphQL is used for communication between frontend and back-end. The data is stored in the PostgreSQL relational database, but also is used the Redis database, which runs tasks in the background.

The results of this work are two major projects - NpgObjects and PagedDataGridView. NpgObjects is a simple ORM framework to enable the mapping database tables to objects in the common language runtime. It contains a specially designed generator which generates classes in C# from information obtained from the database. These classes are mapping on the database tables one to one. NpgObjects allows all the basic database operations - SELECT, INSERT, UPDATE and DELETE. PagedDataGridView is a component for displaying tabular data. In cooperation with NpgObjects can paginate database data and manage the flow of data into application. It provides a comfortable user interface, which can easily navigate between different pages of data.

The first step of Master's thesis was to gain knowledge about technologies Adobe Flex SDK and Google Maps API. Knowledge was used to develop an application, which let users create, generate and modify graphical wireless network model. Position and characteristics of each single unit are monitored either in a map interface or in building plans. Dates are gathered from forms filled by current user, from external file or periodically from connected database system. Theoretical part enlightens technologies that were used. It describes program development and solutions, which were made, along with examples of the source code. Included are printscreens of graphical user interface as well as description of how does it all work.

This thesis is focused on PostgreSQL database system. You can find here introducing to temporal databases, database system PostgreSQL, proposal of temporal extension for PostgreSQL and implementation chapter with examples of using this extension. In this thesis is also using temporal database systems and use temporal databases in practise.

Im Rahmen dieser vorliegenden Arbeit soll untersucht werden, welche Möglichkeiten zur Sicherung einer möglichst hohen Verfügbarkeit (High-Availability), Mechanismen zur Lastverteilung mittels des ZEO-Produkts oder ähnlichem sowie welche Strategien des Cachings sinnvoll an einem ZOPE-Server zum Einsatz kommen können. Die Arbeit untersucht dabei die Einsatzmöglichkeiten von bereits vorhandenen und die eventuelle Notwendigkeit der Eigenimplementierung weiterer Produkte der ZOPE-Entwicklung. Den Rahmen der Arbeit bildet die Serverstruktur des Bildungsmarktplatzes Sachsen.