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Semantic Enrichment Component
Doležal, Jan ; Otrusina, Lubomír (referee) ; Dytrych, Jaroslav (advisor)
This master's thesis describes Semantic Enrichment Component (SEC), that searches entities (e.g., persons or places) in the input text document and returns information about them. The goals of this component are to create a single interface for named entity recognition tools, to enable parallel document processing, to save memory while using the knowledge base, and to speed up access to its content. To achieve these goals, the output of the named entity recognition tools in the text was specified, the tool for storing the preprocessed knowledge base into the shared memory was implemented, and the client-server scheme was used to create the component.
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Analysis of Product Reviews
Klocok, Andrej ; Doležal, Jan (referee) ; Smrž, Pavel (advisor)
Online store customers generate vast amounts of product and service information through reviews, which are an important source of feedback. This thesis deals with the creation of a system for the analysis of product and shop reviews in the czech language. It describes the current methods of sentiment analysis and builds on current solutions. The resulting system implements automatic data download and their indexing, subsequently sentiment analysis together with text summary in the form of clustering of similar sentences based on vector representation of the text. A graphical user interface in the form of a web page is also included. A review data set with a total of more than six million reviews was created during the semester along with an interface for easy data export.
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Sustainable energy sources
Doležal, Jan ; Nerud, Pavel (referee) ; Škvařil, Jan (advisor)
This bachelor’s thesis is a recherche dealing with sustainable energy sources. It lists and describes the various sources and shows their operating principles. In the last part it evaluates their current use in the Czech Republic and the possibilities for further development from economic and technical point of view.
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Diagnostics of GNU/Linux-Based Systems
Hofbauer, Martin ; Doležal, Jan (referee) ; Smrž, Pavel (advisor)
This bachelor thesis focuses on the creation of the light-weighted program, which collects and saves information from GNU/Linux-based systems. Designed and developed solution can also inform about errors in the operating system and its unusual behavior. The program aims at maximum reliability, isolation of individual parts, and ease of use. The theoretical part describes problems of already existing solutions and focuses on the system monitoring context. The practical part then describes program architecture and its implementation. The program was successfully deployed in the company BringAuto, which collaborated with the creation of this thesis. It turned out that the program is able to record information from the operating system without its big load. In case of partial system failure, the program helped with finding its causes.
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Replica of a historical machine gun mount
Doležal, Jakub ; Suchý, Jan (referee) ; Maňas, Pavel (advisor)
This bachelor's thesis deals with the analysis and construction of the Královopolská gun mount replica, which were equipped in selected objects of Czechoslovak border fortifications before the World War II. This work is devoted to the analysis of the original documents for the gun mount, CAD model creation, 3D scanning and modification of scanned polygonal mesh of the heavy machine gun vz.24, which was selected as an example of machine guns mounted in the Královopolská gun mount. This is followed by a virtual compatibility check of the gun mount model with the machine gun model. The production model creation is introduced in next part, using technology with the lowest possible production costs. Complete drawing documentation for the replica production is also part of this bachelor thesis.
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Classification of Relations between Named Entities in Text
Ondřej, Karel ; Doležal, Jan (referee) ; Smrž, Pavel (advisor)
This master thesis deals with the extraction of relationships between named entities in the text. In the theoretical part of the thesis, the issue of natural language representation for machine processing is discussed. Subsequently, two partial tasks of relationship extraction are defined, namely named entities recognition and classification of relationships between them, including a summary of state-of-the-art solutions. In the practical part of the thesis, system for automatic extraction of relationships between named entities from downloaded pages is designed. The classification of relationships between entities is based on the pre-trained transformers. In this thesis, four pre-trained transformers are compared, namely BERT, XLNet, RoBERTa and ALBERT.
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System for Verifying the Minimum Resources Required to Run an Application
Žák, Jiří ; Doležal, Jan (referee) ; Smrž, Pavel (advisor)
The main goal of this bachelor thesis is to create a system for the verifying minimum resources required to run an application. The theoretical part deals with the topic of computer performance evaluation metrics and the principle of operation of the Linux operating system. The practical part describes how the design and implementation of the entire system, which uses BPF (Berkeley Packet Filter) technology, was created. The end of the work is completed by testing and evaluation of the whole work. The system was successfully deployed in the partner company BringAuto. It turned out, that the operating system is powerful enough to run applications.
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