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Consistency Checking of Relations Extracted from Text
Stejskal, Jakub ; Otrusina, Lubomír (referee) ; Smrž, Pavel (advisor)
This bachelor thesis is dedicated to mechanical techniques that are used in the natural language processing and information extraction from particular text. It is approaching the general methods that starting to process the raw text and it continues to the relations extraction from processed language constructs, moreover it provides options for the use of obtained relational data which can be seen for example in the project DBpedia. Another milestone of the described bachelor thesis is the design and implementation of an automated system for extracting information about entities, which do not have their own article on the English version of Wikipedia. Thesis also presents algorithms developed for the extraction of entities with their own name, the verification of the articles ‘existence of the extracted entities and finally the actual extraction of information about individual entities, which can be used during the information consistency checking. In the end, it can be seen the results and suggestions for further development of the created system.
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Temporal Logics for a Man
Žilka, Lukáš ; Letko, Zdeněk (referee) ; Smrčka, Aleš (advisor)
The work deals with the automated translation of a natural language to temporal logic. Existing research attempts are summarized and built upon. For specificating the temporal properties a subset of English is introduced. The main contribution of the work is the proposed algorithm of translation of a property in the given language to LTL temporal logic, based on processing of and finding patterns in grammatical dependencies of The Stanford English Parser. Future research directions are discussed at the end.
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Internet Robot for an Assistance of Calendar Scheduling
Klos, Jakub ; Očenášek, Pavel (referee) ; Smrčka, Aleš (advisor)
This bachelor thesis deals with the development of the internet robot for assistance of calendar scheduling. The robot and a user comunicate with a subset of English. User does not have to study special syntax of the orders which makes using of the robot-calendar much simplier. This easement is the main contribution of the work. This kind of control should help especially to the users with lesser amount of computer skills, for whom the special syntax-oriented-control might be difficult. The XMPP protocol is used for a comunication which is of instant messaging type. NLTK toolkit was used for natural language processing. The source code of the robot is completely programmed in Python programming language. The work also deals with possibilities of robot's further development.
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Processing Czech in Python
Novotný, Zdeněk ; Schmidt, Marek (referee) ; Smrž, Pavel (advisor)
This bachorelor´s thesis presents some ways of Czech language processing. The first part contains a general destription of NLTK system. Some of aftermentioned functions were inspired by NLTK functions. There are described functions which attend to inflection and inflexion of various words class in Czech language. Next part is focused on processing of the text in Czech language in which are found and marked each sentences and other parts. Last part describes possibillity of tranformations rules application for each part of text. Results after rules application could be represented graphically.
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Methods of Document Summarization on the Web
Belica, Michal ; Očenášek, Pavel (referee) ; Bartík, Vladimír (advisor)
The work deals with automatic summarization of documents in HTML format. As a language of web documents, Czech language has been chosen. The project is focused on algorithms of text summarization. The work also includes document preprocessing for summarization and conversion of text into representation suitable for summarization algorithms. General text mining is also briefly discussed but the project is mainly focused on the automatic document summarization. Two simple summarization algorithms are introduced. Then, the main attention is paid to an advanced algorithm that uses latent semantic analysis. Result of the work is a design and implementation of summarization module for Python language. Final part of the work contains evaluation of summaries generated by implemented summarization methods and their subjective comparison of the author.
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Syntactic Analyzer for Czech Language
Beneš, Vojtěch ; Otrusina, Lubomír (referee) ; Kouřil, Jan (advisor)
Master’s thesis describes theoretical basics, solution design, and implementation of constituency (phrasal) parser for Czech language, which is based on a part of speech association into phrases. Created program works with manually built and annotated Czech sample corpus to generate probabilistic context free grammar within runtime machine learning. Parser implementation, based on extended CKY algorithm, then for the input Czech sentence decides if the sentence can be generated by the created grammar and for the positive cases constructs the most probable derivation tree. This result is then compared with the expected parse to evaluate constituency parser success rate.
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A Classification of a Syndicated Content
Matušov, Izidor ; Očenášek, Pavel (referee) ; Smrčka, Aleš (advisor)
This work deals with a classification of a syndicated content as the possible way of organizing the content. The classification uses algorithms for natural language processing. The main contribution is applying word sense disambiguation algorithm for enhancing the classification, eliminating the learning stage, and using a readability test for improving user experience. The application is implemented as an extensible server-client model. The future work is discussed in the end.
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Query Answering over Wikipedia for Mobile Devices on the Android Platform
Kováč, Andrej ; Otrusina, Lubomír (referee) ; Smrž, Pavel (advisor)
p { margin-bottom: 0.1in; direction: ltr; line-height: 120%; text-align: left; widows: 2; orphans: 2; }p.western { font-family: "Times New Roman",serif; }p.cjk { font-family: "Times New Roman"; }p.ctl { font-family: "Times New Roman"; font-size: 12pt; }a:link { color: rgb(0, 0, 255); } This bachelor thesis deals with the development of a system for query answering over Wikipedia for mobile devices running Android operating system. In this technical report theoretical knowledge related to this topic is described as well as the implementation process of a server system and client side application. Part of this thesis is dedicated to testing of the system and in the final part the potential for future development is drafted.
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Methods of Information Extraction
Adamček, Adam ; Smrž, Pavel (referee) ; Kouřil, Jan (advisor)
The goal of information extraction is to retrieve relational data from texts written in natural human language. Applications of such obtained information is wide - from text summarization, through ontology creation up to answering questions by QA systems. This work describes design and implementation of a system working in computer cluster which transforms a dump of Wikipedia articles to a set of extracted information that is stored in distributed RDF database with a possibility to query it using created user interface.
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Language and information: Meaning in the Computer Era
Valeš, Miroslav ; Rosický, Antonín (advisor) ; Sigmund, Tomáš (referee)
One of the most significant human instrument is language. On the one hand it makes communication and coordination with another individuals possible and on the other hand its meaning is crucial just within the scope of one person, whereas it acts as outer reality comprehension and handling instrument. This thesis describes the relation between a man and information that are presented in the form of language. Due to the utilization of the most important topics reaching the Cognitive science, Systems science or for instance philosophy, it forms compact framework appropriate for setting more exercisable point of view. Thus the thesis content itself contains topics primarily fundamental to the personal meaning and concretely it reflects essential ideas on the topic of benefits, application and the human dependence on language. The finale is devoted to the evaluation and the creation of conclusions about more suitable approaches in the context of the current, modern era.
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