National Repository of Grey Literature 23 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Normalization of numbers into spoken form for text-to-speech systems
Růžička, Jakub ; Dušek, Ondřej (advisor) ; Peterek, Nino (referee)
Title: Normalization of numbers into spoken form for text-to-speech systems Author: Jakub Růžička Institute: Institute of Formal and Applied Linguistics Supervisor: Mgr. et Mgr. Ondřej Dušek, Ph.D., Institute of Formal and Applied Lin- guistics Abstract: A necessary part of any text-to-speech system is the normalization of num- bers and words containing numbers. The accuracy of this process can significantly affect the quality of the resulting speech. The main goal of this work is the design and imple- mentation of a number normalization module for Czech. Words containing digits are first assigned to one of the predefined categories. Based on the category given, possible spoken forms are subsequently generated. For the selection of the contextually correct variant, an existing language model is used. The system is distributed as a Python package and can run on Linux or in a Docker container whose configuration is part of the project. Moreover, a specialized data annotation application has been designed and written for creating the datasets for the Czech text normalization task. Two datasets with 1,882 sen- tences and 3,185 words requiring normalization were obtained using the data annotation service. The system achieved a sentence-level accuracy of over 80% on both datasets. We perform a detailed error...
Utilization shielding in emergencies
RŮŽIČKA, Jakub
The bachelor work deals with protection buildings for the civilian population. The topic is using protection buildings during crisis situations. The main goal is a comparison of shelters based on theirs parameters, which affect number of survivors. Partial goals are creation shelter database in the Czech Republic and evaluation protection buildings´s preparation. The objectives are fulfiled with SWOT analysis, creation of ideal shelter and processing of evaluation.
Automatic detection of driving lanes geometry based on aerial images and existing spatial data
Růžička, Jakub
The aim of the thesis is to develop a method to identify driving lanes based on aerial images and existing spatial data. The proposed method uses up to date available data in which it identifies road surface marking (RSM). Polygons classified as RSM are further processed to obtain their vector line representation as the first partial result. While processing RSM vectors further, borders of driving lanes are modelled as the second partial result. Furthermore, attempts were done to be able to automatically distinguish between solid and broken lines for a higher amount of information contained in the resulting dataset. Proposed algorithms were tested in 20 case study areas and results are presented further in this thesis. The overall correctness as well as the positional accuracy proves effectivity of the method. However, several shortcomings were identified and are discussed as well as possible solutions for them are suggested. The text is accompanied by more than 70 figures to offer a clear perspective on the topic. The thesis is organised as follows: First, Introduction and Literature review are presented including the problem background, author's motivation, state of the art and contribution of the thesis. Secondly, technical and legal requirements of RSM are presented as well as theoretical concepts and...
Analysis of factors influencing the crime in the city of Liberec
Růžička, Jakub ; Spilková, Jana (advisor) ; Vávra, Jaroslav (referee)
This thesis deals with crime in the urban environment, focusing on the city of Liberec. The basic approaches to urban studies and the basic theories of criminality are mentioned in the theoretical background. The results of various Czech and foreign studies dealing with the same topic are also mentioned. The methodological section contains the explanation of statistical analyses based on the data obtained from the Police and Czech statistical office and from guided interviews with members of the Police and the Municipality of Liberec. The main aim of the thesis is to define characteristics which influence crime and its location in the urban space, and to sketch out what the best crime prevention in the urban space could be. In the empirical part of the thesis firstly, the most frequent offenders and the most frequent types of crime are identified. Then, the influence of the residents' characteristics and the characteristics of urban environment on the crime rates are considered in the subsequent analyses. These analyses are grouped into three factors called the socioeconomic conditions of residents, the living conditions and the quality of flats. The results of the analyses are combined with the outcomes of guided interviews to form the final conclusions. The first one is that crime in Liberec is mainly...
Study of student groups on Facebook focused on two different methods of data collection
Stavárek, Filip ; Růžička, Jakub (advisor) ; Remr, Jiří (referee)
The work focuses on student groups on Facebook, their structure, the highly acclaimed users and types of posts being posted in the groups. All those aspects are being observed by different methods, online survey and data mining. The main goal is to compare those methods of data collection and observe, whether are findings comparable and if, to what extend. The other goal is to highlight unique aspects of each of methods. Based on the results it is safe to say that the findings of both methods are interchangeable in limited extend. Those limitations are based on different approach to data collection. Each of chosen methods offer different advantages which ought to be considered while deciding one or another method. While one of advantages of web surveys is the ability to work with paradata and ask possibly on anything, data mining from Facebook offer the possibility to work with big data and their analysis. The main benefit of work is the demonstrational usage of both methods to better understand the limits of findings. Thus the reader will gain better idea when use one or another method. Powered by TCPDF (www.tcpdf.org)
Automatic detection of driving lanes geometry based on aerial images and existing spatial data
Růžička, Jakub ; Brůha, Lukáš (advisor) ; Brodský, Lukáš (referee)
The aim of the thesis is to develop a method to identify driving lanes based on aerial images and existing spatial data. The proposed method uses up to date available data in which it identifies road surface marking (RSM). Polygons classified as RSM are further processed to obtain their vector line representation as the first partial result. While processing RSM vectors further, borders of driving lanes are modelled as the second partial result. Furthermore, attempts were done to be able to automatically distinguish between solid and broken lines for a higher amount of information contained in the resulting dataset. Proposed algorithms were tested in 20 case study areas and results are presented further in this thesis. The overall correctness as well as the positional accuracy proves effectivity of the method. However, several shortcomings were identified and are discussed as well as possible solutions for them are suggested. The text is accompanied by more than 70 figures to offer a clear perspective on the topic. The thesis is organised as follows: First, Introduction and Literature review are presented including the problem background, author's motivation, state of the art and contribution of the thesis. Secondly, technical and legal requirements of RSM are presented as well as theoretical concepts and...
Saint Francis' quest for the Crucified through the San Damiano Cross
Růžička, Jakub ; Sládek, Karel (advisor) ; Červenková, Denisa (referee)
Saint Francis' quest for the Crucified through the San Damiano Cross Abstract The encounter with the Crucified is the constitutive element of the spirituality of Saint Francis of Assisi. The objective of my thesis is finding the deeper understanding of Francis' perception of the cross. The topic should be elucidated by the San Damiano Cross Icon and other moments of the Saint of Assisi's life. The study of Francis' relation to the cross will be put into an appropriate context: the theology of the cross is mainly ingrained in the Jesus Christ's Mystery of Easter. This knowledge is deepened in life of the Early Church and, through the enriching epoch-making interposition even the "poor little" of Assisi may experience its fruits. In the fundamental part of the text I will organize the key materials for the study of Francis' relation to the crucified Christ contained in the franciscan sources with the help of the newest literature. Therefore the thesis will offer a complex view to one of the crucial moments of Francis' conversion. Keywords Saint Francis of Assisi, San Damiano, icon, cross, theology of the cross, The Crucified, history of the cross, speaking cross, franciscan sources, St. Paul, St. Bonaventure
Determination of the working range and efficiency of the water hammer pump
Růžička, Jakub ; Himr,, Daniel (referee) ; Špano, Miroslav (advisor)
This thesis focuses on setting the range and efficiency of a water ram pump through experimental measurements in a laboratory. The measurements were carried out on three different constructions of water ram pump, each of the designed and assembled by the author of this thesis himself, to find out whether the weight on the pulsating valve has an influence on the water ram pump efficiency. Further on this thesis aims at the comparison of up to now methods of water transport arrangement used at a summer camp and the usage of the water ram pump and its advantages. The principal of water ram pump originates in hydraulic impact that is being precisely described in a great detail as well. On of the chapters even includes the placement manual for the water ram pump and its overall assembly and connexion. Because the presence of floating debris is inevitable, this thesis also deals with the possibility to solve the incoming water impurities by adding an inflow gating to prevent such problem. This inflow gating has only been designed in a Flow 3D programme to introduce the idea and functions.
Determination of the working range and efficiency of the water hammer pump
Růžička, Jakub ; Haluza,, Miloslav (referee) ; Špano, Miroslav (advisor)
This thesis focuses on setting the range and efficiency of a water ram pump through experimental measurements in a laboratory. The measurements were carried out on three different constructions of water ram pump, each of the designed and assembled by the author of this thesis himself, to find out whether the weight on the pulsating valve has an influence on the water ram pump efficiency. Further on this thesis aims at the comparison of up to now methods of water transport arrangement used at a summer camp and the usage of the water ram pump and its advantages. The principal of water ram pump originates in hydraulic impact that is being precisely described in a great detail as well. On of the chapters even includes the placement manual for the water ram pump and its overall assembly and connexion. Because the presence of floating debris is inevitable, this thesis also deals with the possibility to solve the incoming water impurities by adding an inflow gating to prevent such problem. This inflow gating has only been designed in a Flow 3D programme to introduce the idea and functions.

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