National Repository of Grey Literature 149 records found  beginprevious31 - 40nextend  jump to record: Search took 0.01 seconds. 
Deep Book Recommendation
Gráca, Martin ; Beran, Vítězslav (referee) ; Hradiš, Michal (advisor)
This thesis deals with the field of Recommendation systems using Deep Neural Networks and their use in book recommendation. There are the main traditional recommender systems analysed and their representations are summarized, as well as systems with more advancec techniques based on machine learning.. The core of the thesis is the use of convolutional neural networks for natural language processing and the creation of a book recommendation system. Suggested system make recommendation based on user data, including user reviews and book data, including full texts.
Web application for Cybersecurity Job Ads Analysis
Turek, Adam ; Sikora, Marek (referee) ; Ricci, Sara (advisor)
Cílem bakalářské práce je vytvoření interaktivní celosvětové mapy zobrazující databázi pracovních inzerátů ve webové aplikaci a provedení filtrování podle různých parametrů, kde je následně provedena analýza strojového učení. Také mapa zobrazuje počet inzerátů na pracovní pozice podle příslušných států. Webová aplikace je vytvořena pomoci JavaScriptové knihovny ReactJS spojené s LeafletJS, které zajišťují hlavní funkcionalitu. Část se strojovým učením a změna skriptů je realizována pomocí programovacího jazyku Python. Práce popisuje teoretickou část a implementaci jednotlivých funkcí mapy a dále se zabývá popisem a úspěsnou úpravou skriptů pro účely provedení strojového učení.
Mobile Application for Searching for Interesting Events and Destinations in Brno
Misař, Ondřej ; Hrubý, Martin (referee) ; Dyk, Tomáš (advisor)
The aim of this bachelor thesis is to create a mobile application that allows user to use a chatbot to search for interesting places and events in Brno. The application is developed on Android operating system using Kotlin language. It offers the user the possibility of communicating with the chatbot using hint buttons. It is implemented using the Rasa framework. The application offers the possibility to browse all events or places and view their detailed information. The user also has the possibility to view all items on the map. The data is stored on the server in a database where it is managed by the backend. It takes care of storing, processing and filtering the data. It is placed on the server together with the chatbot.
Visual Question Answering
Kocurek, Pavel ; Ondřej, Karel (referee) ; Fajčík, Martin (advisor)
Visual Question Answering (VQA) je systém, kde je vstupem obrázek s otázkou a výstupem je odpověď. Navzdory mnoha pokrokům ve výzkumu se VQA, na rozdíl od počítačově generovaných popisů obrázků, v praxi používá jen zřídka. Cílem této práce je zúžit mezeru mezi výzkumem a praxí. Z tohoto důvodu byla kontaktována komunita zrakově postižených a byla jim nabídnuta demonstrativní aplikace VQA a následně byla vytvořena mobilní aplikace. Byla provedena studie s 20 účastníky z komunity. Nejprve účastníci zkoušeli demonstrativní aplikaci po dobu dvou týdnů a následně byli požádáni o vyplnění dotazníku.   80 % respondentů hodnotilo přesnost aplikace VQA jako dostatečnou nebo lepší a většina z nich by ocenila, kdyby jejich aplikace pro generování popisů podporovala také VQA. Po tomto zjištění práce porovná získané znalosti z VQA se znalostmi z popisů v různých scénářích. Byla vytvořena datová sada 111 obrázků různorodých scén s ručně anotovanými popisky. Experiment porovnávající získané znalosti ukázal úspěšnost 69,9 % pro VQA a 46,2 % pro popisy obrázků. V dalším experimentu v 70,9 % případů účastníci vybrali správný popis za pomocí VQA. Výsledky naznačují, že pomocí VQA je možné zjistit více znalostí o detailech obrázků než je to v případě generovaných popisů.
The Most Frequent Word n-Grams
Holec, Matúš ; Szőke, Igor (referee) ; Smrž, Pavel (advisor)
This thesis deals with design and implementation of effective system for word n-grams extraction from texts. System is based on batch processing therefore it is able to process large text corpuses. The first part contains principles of existing methods for an n-gram extraction. The next part includes description of the implemented system as well as the approach of acceleration system by paralelizing the batch processing. The last part contains efficiency comparison between available implementations and designed system and time complexity comparison between sequential and paralelized approach.
An Intelligent System for Question Answering
Mičulka, Jakub ; Kouřil, Jan (referee) ; Otrusina, Lubomír (advisor)
This work deals with problem about proccessing of natural language queries, which are asked in search engines. This work explains basic function principles of search engines, where the main focus is given to database search engines. The essential part of this article deals with system design and implementation of questionAnswering, which is used for searching information in the database of the ReResearch project. The reader is introduced to procedure of design and implementation of mentioned system and to the fundamental problems, that arose from this work. In the end, this system is evaluated with the standard metrics.
Word Sense Clustering
Jadrníček, Zbyněk ; Otrusina, Lubomír (referee) ; Smrž, Pavel (advisor)
This thesis is focused on the problem of semantic similarity of words in English language. At first reader is informed about theory of word sense clustering, then there are described chosen methods and tools related to the topic. In the practical part we design and implement system for determining semantic similarity using Word2Vec tool, particularly we focus on biomedical texts of MEDLINE database. At the end of the thesis we discuss reached results and give some ideas to improve the system.
Sentiment Analysis for the Field of Computer Games
Balajka, Pavel ; Otrusina, Lubomír (referee) ; Smrž, Pavel (advisor)
The thesis deals with sentiment analysis extracted from opinions of users on social \mbox{networks}. It describes a general system that was created for presented purpose and specialised on the field of strategic computer games. In particular we unravel the problems of acquiring data from social networks, sentiment analysis and results presentation to the user. We mention particular ways of text processing e.g. tokenization and unnecessary word filtration, for purpose of more effective sentiment analysis and we mention machine learning methods e.g. Decision Trees and Naive Bayes, and their usage. Next we describe design of desired system and its implementation with chosen parts and methods. In the end we compare results of tests of sentiment analyzator done under various circumstances.
Identifying Term Similarity in Information Technology Domain
Smutka, Miloslav ; Otrusina, Lubomír (referee) ; Smrž, Pavel (advisor)
This bachelor thesis works with the idea, implementation and evaluation of resulting system for retrieval of semantically related words. For the determination of word relations, gensim library word2vec model is used.
Chatbot in an Enterprise Information System
Novák, Miroslav ; Rychlý, Marek (referee) ; Kreslíková, Jitka (advisor)
This diploma thesis deals with problems of development of chatbots. The theoretical part of the thesis introduces the concept of the conversational interface in general and analyzes available technologies for its development. The practical part deals with the design and implementation of a particular chatbot, whose goal is to be a virtual assistant in the process of selecting and purchasing goods. This is accomplished by connecting the chatbot to the product information management system using OData web services. One of the biggest problems was to determine the order of questions asked about product properties. For the implementation was used decision tree theory.

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