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I/O Subsystem Optimalization Using SSD
Bělousov, Petr ; Chalupníček, Kamil (referee) ; Kašpárek, Tomáš (advisor)
The bachelor thesis examines IO subsystem optimization using SSD cache to speed up HDDs. I examined possible server loads and identified those that are suitable for caching. In the first part I introduce 2 caching solutions, LVM cache and B-cache with their management capabilities and 2 filesystems Ext4 and XFS. In the second part IO performance of LVM cache and B-cache with Ext4 and XFS filesystem is benchmarked and compared to an uncached HDD array.
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Visualization of User Pronunciations for Electronic Dictionarties
Pešán, Jan ; Chalupníček, Kamil (referee) ; Černocký, Jan (advisor)
The aim of this bachelor's work is to try to find a new way for development in learning capabilities of electronic dictionaries. There is an introduction of the main concept of learning pronunciations with visualization of phonemes in the first part. It is followed by chapter, which does a global review of methods for speech processing used in this project, e.g. HMM or Viterbi algorithm. In the third chapter, there is description of tools that we have used for implementation of the whole system. Next chapter explains more in detail technology of neural networks, used here as probability estimator. There is also a description of problem with compatibility of the used phoneme sets and in addition, it describes used phoneme models. Chapter 5 is whole about implementation of the system. There are also described scripts and tools applied for the preparation of the source data. In the next chapter, there is a user testing with screenshots. Moreover, in the last chapter I wrote a short conclusion and possible future ways for further developing of this system.
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Recognition of Handwriting for Mobile Phones
Talaš, Vladimír ; Chalupníček, Kamil (referee) ; Schwarz, Petr (advisor)
The goal of this project is to create a mobile phone application, which can use phone camera to get a photography. This photography contains text, application has an ability to find a text, recognize all characters and send output as SMS. In this application there are implemented algorithms for text recognize from pictures based on Hidden Markovov Models. The particular stress is put on training of the model, to maximalise a succes of text recognition. There are some experiments model training with model variables, which are leading in better ability of text recognition. It was achieved a value of 97% succesfully recognized characters.
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Unix Tools for Application and System Profiling
Dressler, David ; Chalupníček, Kamil (referee) ; Kašpárek, Tomáš (advisor)
The main goal of this thesis was to demonstrate usage of tools for application and system profiling. Initially, these tools was found and studied. They was also divided into categories according to their purpose. After that, these tools was compared according to their complexity of use and invasiveness. As the result of this comparison, these tools was divided into three groups, that express measure of complexity and invasiveness. As technology, used for creating models, was chosen Apache server and NFS server. Virtualization by hyper-v technology was used for putting these models into operation. There was created four virtual machines. Fist one for Apache server, another one for NFS server. Third was for mirroring content of Apache server and the last one for load generation. The last part of this thesis was to demonstrate usage of found tools on the created models.
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GridEngine Reporting Tool
Rožek, František ; Chalupníček, Kamil (referee) ; Kašpárek, Tomáš (advisor)
The aim of this work is to build a tool that will reflect the utilization of the computing cluster, built on Grid Engine technology. Data are processed using PHP and Shell scripts and then stored in MySQL, or RRD databases. The work created a system that handles huge amounts of data and provides a comprehensive view on the utilization of the entire cluster, but also its specific components, or statistics of individual users. Created solution provides current and long-term data. The result of this work allows you to watch computing cluster from a single tool, which was not possible before.
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Visiting Cards Generator
Moučka, Milan ; Chalupníček, Kamil (referee) ; Chudý, Peter (advisor)
Business cards are a popular data medium for providing information nowadays. This bachelor work deals with an application of business cards' generating according to general stated rules. Its result is an application which generates business cards for the PDF document. These are ready to be printed and cut in partial ones.
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Management Application for Touristic Routes in OSM
Lev, Patrik ; Chalupníček, Kamil (referee) ; Kašpárek, Tomáš (advisor)
The goal of this bachelor thesis is a design and realization of an application, which would automatically check the hiking trails managed by Czech Tourist Club (Czech: Klub českých turistů, KČT) in the OpenStreetMap (hereinafter OSM) project's data. In this technical report is described the OSM project and its way of community mapping, data storage and the OSM data distribution. To map the hiking trails in the Czechia we use so called OpenTrackMap. In the following part are described the possibilities of the manual and automatic OSM data check. The part of the technical report is a design of the OSM data checking application. In the end of this work is described the implementation of the application and there is also attached the manual for the application.
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I/O Subsystem Optimalization Using SSD
Bělousov, Petr ; Chalupníček, Kamil (referee) ; Kašpárek, Tomáš (advisor)
The bachelor thesis examines IO subsystem optimization using SSD cache to speed up HDDs. I examined possible server loads and identified those that are suitable for caching. In the first part I introduce 2 caching solutions, LVM cache and B-cache with their management capabilities and 2 filesystems Ext4 and XFS. In the second part IO performance of LVM cache and B-cache with Ext4 and XFS filesystem is benchmarked and compared to an uncached HDD array.
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Management Application for Touristic Routes in OSM
Lev, Patrik ; Chalupníček, Kamil (referee) ; Kašpárek, Tomáš (advisor)
The goal of this bachelor thesis is a design and realization of an application, which would automatically check the hiking trails managed by Czech Tourist Club (Czech: Klub českých turistů, KČT) in the OpenStreetMap (hereinafter OSM) project's data. In this technical report is described the OSM project and its way of community mapping, data storage and the OSM data distribution. To map the hiking trails in the Czechia we use so called OpenTrackMap. In the following part are described the possibilities of the manual and automatic OSM data check. The part of the technical report is a design of the OSM data checking application. In the end of this work is described the implementation of the application and there is also attached the manual for the application.
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GridEngine Reporting Tool
Rožek, František ; Chalupníček, Kamil (referee) ; Kašpárek, Tomáš (advisor)
The aim of this work is to build a tool that will reflect the utilization of the computing cluster, built on Grid Engine technology. Data are processed using PHP and Shell scripts and then stored in MySQL, or RRD databases. The work created a system that handles huge amounts of data and provides a comprehensive view on the utilization of the entire cluster, but also its specific components, or statistics of individual users. Created solution provides current and long-term data. The result of this work allows you to watch computing cluster from a single tool, which was not possible before.
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