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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
341

Vyhodnocování elektrochemických signálů neuronovou sítí / Recognition of electrochemical signals using artificial neuronal network

Šílený, Jan January 2011 (has links)
Automatical electrochemical measurements are sources of large data sets intended for further analysis. This work deals with classification, evaluation and processing of electrochemical signals using artificial neural networks. Due to high dimensionality of input data, an autoassociative neural network (AANN) is used in this work. This type of network performs dimensionality reduction via filtering the input data into relatively small number of principal parameters at the bottleneck output. These extracted parameters can be used for classification, evaluation and additional modelling of analyzed data trough the reconstructive part of this network. Furthermore, this work deals with implementation of a feedforward neural network in OpenCL language.
342

Zjišťování příznaků z obrazových dat / Feature extraction from image data

Uher, Václav January 2011 (has links)
Image processing is one area of signal analysis. This thesis is involved in feature extraction from image data and its implementation using Java programming language. The main contribution of this thesis lies in develop features extractors and their implementation in the program RapidMiner. The result is a robust tool for image analysis. The functionality of each operator is tested on mammogram images. A function model was developed for the removal of artifacts from the mammography images. The success rate of removal is comparable with other similar works. Furthermore, learning algorithms were compared on example detection of ventricle in ultrasound image.
343

Analýza dat z jedoucího vozidla / Data analysis from moving vehicle

Kvapil, Josef January 2011 (has links)
The thesis deals with data analysis obtained from the traffic simulator. The data are from trajectory of vehicle movement. The analysis are suggested to driving trajectory which are obtained from the characteristic parameters for the subsequent detection of the critical vehicle position. Analysis and evaluation of the detection critical vehicle position are solved in the Matlab program scripts.
344

Realizace úzkopásmových PLC modemů / Realization of narrowband powerline modems

Kubíček, Lukáš January 2012 (has links)
This master's thesis deals with a narrowband power line communication technology (PLC) and focuses on the potential use in the sensor networks. This thesis addresses both the structure and basic properties of PLC standard and possible use of this application in practice. The main part of this work is implementation of the PLC networks with IC ST7570 of STMicroelectronics. As an example of practical use of PLC technology, this network is connected to the computer where the data from the sensor (meter) connected to a PLC modem, stored in a database using a PHP script as presented by the Internet. Problem solving in this thesis focuses primarily on the simplicity and universality of the resulting applications.
345

Záznamová jednotka do UL letadla / Datalogger for UL aircraft

Marek, Michal January 2013 (has links)
This thesis describes the design of flight data recorder for UL aircraft. The theoretical part describes the basic principles of measurement of the quantities in relation to the operation of the aircraft, such as altitude, air speed. A separate chapter deals with systems for determining of GPS position. Furthermore, there are examples of instruments measuring these quantities. The practical part is focused on the description of selected components and their connection to PIC24FJ64GA004 microcontroller. This is followed by a description of the control of USB drives with USB Controller Vinculum-II. The work is finished by the functional test of the device.
346

Dolování dat / Data Mining

Stehno, David January 2013 (has links)
The aim of the thesis was to study and describe data mining methodology CRISP-DM. From the collected database of calls to the call center a prediction was performed, based on CRISP-DM methodology. In phase of test situation modeling four different testing methods were used: the k-NN, neural network, linear regression and super vector machine. The input attributes importance for further prediction was evaluated based on different selections. The results and findings may provide data for further more accurate forecasts in the future; not only in number of calls but also other indicators relevant to the call center.
347

Hlasová služba v integrovaných sítích / Voice Service in Integrated Networks

Yeftsifeyeu, Aliaksandr January 2014 (has links)
The master’s thesis presents routing protocols, SIP handshake, describes modern VoIP networks and its features. Thesis is primary focused on networks with integrated MPLS. The most known advantages and disadvantages were described of modern network based on such technology. Further, networks and a router with installed Cisco Call Manager Express 7.1 were configured, which is provided by CISCO. For recreating of fully working telephone network IP PBX10 has been used from SMC Networks. For connection between different phones within these integrated networks, SIP trunk was configured on SMC PBX10 as well as on router, which is connecting three configured Cisco IP phones. Each phone has its own number according to the dial plan. For calls from one network to another the special pattern has been established, so the number of each caller can be easily identified by added digit. On one of the CISCO routers was shown a configuration of MPLS and OSPF protocols. With an analyzer VePAL TX300e, the lab network has been measured to analyze QoS parameters of the network according to standard RFC 2544. Thesis also gives references to lab devices, which have been used accordingly to the work.
348

Analýza spokojenosti zákazníků s dopravní společností / The Analysis of Customers Satisfaction with a Transport Company

Lochmanová, Marcela January 2009 (has links)
The thesis deals with a survey of customer´s satisfaction with provided services. The theoretical part focuses on the explanation of different concepts, problems in marketing research and also on a questionnaire as a tool of collecting information. The practical part of the thesis analyses and presents the results from the questionnaire including recommendation and suggestions for improvements. They should be leading into increase in popularity of using public transport.
349

Zhodnocení finanční situace podniku pomocí aplikace statistické analýzy dat / Assessment of Company Financial Situation Using Statistical Data Analysis

Čapka, Jakub January 2011 (has links)
The diploma thesis is focused on using of statistical data analysis as the effective tool for evaluation of characteristics and efficiency of the company, especially economic indicators. The goal will be to analyze the data by these means, to compare them and to make the conclusions and suggestions for improvement. From the knowledge of historical data and forecasting preconditions for the future the company will gain clearer image about its development and future direction.
350

Volba informační strategie nového elektronického obchodu / Choice of Information Strategy for a New E-Shop

Slunečko, Miroslav January 2011 (has links)
The diploma thesis analyzes the new e-shop, and chooses its information strategy. The chosen solution shall support the achievement of the company's goals through the effective use of information technology.

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