|
|
Object Detection in the Laser Scans Using Convolutional Neural Networks
Marko, Peter ; Beran, Vítězslav (referee) ; Veľas, Martin (advisor)
This thesis is aimed at detection of lines of horizontal road markings from a point cloud, which was obtained using mobile laser mapping. The system works interactively in cooperation with user, which marks the beginning of the traffic line. The program gradually detects the remaining parts of the traffic line and creates its vector representation. Initially, a point cloud is projected into a horizontal plane, crating a 2D image that is segmented by a U-Net convolutional neural network. Segmentation marks one traffic line. Segmentation is converted to a polyline, which can be used in a geo-information system. During testing, the U-Net achieved a segmentation accuracy of 98.8\%, a specificity of 99.5\% and a sensitivity of 72.9\%. The estimated polyline reached an average deviation of 1.8cm.
|
|
|
Diagnosis of Communication Problems in Captured Network Traffic
Marko, Peter ; Holkovič, Martin (referee) ; Kořenek, Jan (advisor)
This thesis deals with a system for measuring the quality of captured data on the network. The focus is mainly on packet loss caused by insufficient capture rate. The quality of captured network traffic is evaluated on TCP protocol, which implements sequence and acknowledgment numbers. Based on these numbers, we can detect data, that has been correctly transmitted, but we do not see them in the capture. Existing tools, such as capTCP or Wireshark, are not suitable for this analysis because they cannot comprehensively analyze the quality of captured communication, filter communication flows according the metrics and do not fit into system DISTANCE. This thesis is also focused on configuration problems of DHCP protocol.
|
|
|
Mapping of relational schema onto existing ontologies
Marko, Peter ; Tykal, Jaroslav (advisor) ; Nečaský, Martin (referee)
This master thesis concerns the problematics of mapping of relational schemas to existing ontologies, primarily written in RDFS. Its first part gives a view at already existing solutions and their principles. The solutions are divided into the manual and semiautomatic groups according to the level of a help given to users when mapping. Secondly the thesis presents an own solution - mDR. In its basics it does use ideas of the existing FDR2 system, however it generalises them. The mapping is done in three steps: creation of helping information about a database, mapping and instances transfer. The last third of the work involves JmDR, a (in JAVA) developed tool completely implementing the first two phases.
|
|
| |
|
|
Object Detection in the Laser Scans Using Convolutional Neural Networks
Marko, Peter ; Beran, Vítězslav (referee) ; Veľas, Martin (advisor)
This thesis is aimed at detection of lines of horizontal road markings from a point cloud, which was obtained using mobile laser mapping. The system works interactively in cooperation with user, which marks the beginning of the traffic line. The program gradually detects the remaining parts of the traffic line and creates its vector representation. Initially, a point cloud is projected into a horizontal plane, crating a 2D image that is segmented by a U-Net convolutional neural network. Segmentation marks one traffic line. Segmentation is converted to a polyline, which can be used in a geo-information system. During testing, the U-Net achieved a segmentation accuracy of 98.8\%, a specificity of 99.5\% and a sensitivity of 72.9\%. The estimated polyline reached an average deviation of 1.8cm.
|
|
|
Diagnosis of Communication Problems in Captured Network Traffic
Marko, Peter ; Holkovič, Martin (referee) ; Kořenek, Jan (advisor)
This thesis deals with a system for measuring the quality of captured data on the network. The focus is mainly on packet loss caused by insufficient capture rate. The quality of captured network traffic is evaluated on TCP protocol, which implements sequence and acknowledgment numbers. Based on these numbers, we can detect data, that has been correctly transmitted, but we do not see them in the capture. Existing tools, such as capTCP or Wireshark, are not suitable for this analysis because they cannot comprehensively analyze the quality of captured communication, filter communication flows according the metrics and do not fit into system DISTANCE. This thesis is also focused on configuration problems of DHCP protocol.
|
|
|
The budget of EU and influance on czech budgetary policy
Lukešová, Zuzana ; Schneider, Ondřej (advisor) ; Marko, Peter (referee)
This thesis deals with character and functioning of European Union's budget with focus on explanation of functioning of revenue and expenditure system and its influence on budget of Czech Republic. The first capitol applies to basic principles and development of the budget in time. The second capitol concerns with revenue side of the budget, with development of revenue resources and evaluation revenue system according to several criteria. The third capitol describes todays setting of union expenditures, which basically represent priorities of common politics of EU. The last capitol deals with describing of influences on Czech Republic, which come from obligation to take part in filling of revenues of the budget, and benefits result from possibility to draw subsidies from EU's expenditures. The thesis tries to describe direct influence of subsidies on Czech budget in field of transport infrastructure, of which development and support is one of goals of cohesion politic.
|
|
|
Euro zone and fiscal transfers: does it mean wasting of time or necessity?
Paul, Tomáš ; Dingová, Vilma (advisor) ; Marko, Peter (referee)
The bachelor thesis discusses possible solutions of asymmetric economic shocks in euro-area. The first chapter shows that some of the criteria of the theory of optimum currency area are not fulfilled therefore the euro-area is more vulnerable to the asymmetric shocks. The second chapter introduces six proposals of the fiscal transfer mechanism as they are presented in literature. The third and fourth chapter analyzes and compares the construction of the mechanisms and fulfilling of seven features that the fiscal transfer mechanism should have. In the empirical part are calculated transfers for two mechanisms. The comparison shows considerable differences between them. The conclusion of the thesis is that the construction of the fiscal transfer mechanism is difficult because of the features of the euro-area and faces many problems, therefore the implementation cannot be recommended for the time being.
|
|
|
Mapping of relational schema onto existing ontologies
Marko, Peter ; Nečaský, Martin (referee) ; Tykal, Jaroslav (advisor)
This master thesis concerns the problematics of mapping of relational schemas to existing ontologies, primarily written in RDFS. Its first part gives a view at already existing solutions and their principles. The solutions are divided into the manual and semiautomatic groups according to the level of a help given to users when mapping. Secondly the thesis presents an own solution - mDR. In its basics it does use ideas of the existing FDR2 system, however it generalises them. The mapping is done in three steps: creation of helping information about a database, mapping and instances transfer. The last third of the work involves JmDR, a (in JAVA) developed tool completely implementing the first two phases.
|
guest ::
