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Využití propojených otevřených dat skrze webová API
HELLER, Dominik
This bachelor thesis focuses on the topic of linked open data utilization by the means of application programming interface of representational state transfer architectural style. The main goal of the thesis is to analyse the current state of the field in regards to semantic web technologies and their relations to more traditional approaches to data publication and extraction. More precisely the proposed goal is to formulate a programming solution which would allow to publish, consume and manipulate the semantic data, otherwise accessible only via SPARQL endpoints, in very well-known and notably convenient way.
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Books Recommender System via Linked Open Data
Maleček, Ladislav ; Peška, Ladislav (advisor) ; Škoda, Petr (referee)
This thesis focuses on using recommender system's methods on Linked Open Data in a domain of books. After thorough analysis of multiple available Linked Open Data sets, we have concluded that data sets of sufficient size and quality already exist. Together with careful analysis of the structure and quality of the data, recommender system web application has been developed based on retrieved data from a Wikidata endpoint. The application design allows an incorporation of data from multiple sources. A novel approach for generating recommendations utilizing multi language tags extracted from Wikipedia was used. We have shown that it is possible and viable to use recommender systems on top of the Linked Open Data, but the common recommender system's algorithms have to be modified in order to deal with a huge amount of sparsity in the data.
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Support the publication of open data in municipalities
Tichý, Petr ; Chlapek, Dušan (advisor) ; Kučera, Jan (referee)
This thesis deals with so-called open data. Specifically, it aims to support the publication of open data in municipalities. The work has three defined objectives - to analyze the issue of open and linked data, to analyze and select data suitable for opening, and to create an application to facilitate the opening and visualization of data. Each goal provides some partial benefit, but the main and the biggest benefit is the verification of standardized process that allow for opening and publication of data in a small village. The structure of the work is partly based on defined goals. It consists of an introduction, theoretical part, practical part and conclusion. The introductory part deals with basic introduction to the work, defining goals and present searches resources. In the theoretical part basic concepts of open and linked data are defined, then presents the benefits and risks associated with the opening of data are presented. Then, a standardized process of opening and publication of data is introduced as well as the evaluation of the current situation of open data in the Czech Republic and in other countries. The practical part sets objectives subdivided to the described process of opening and publication of data in the selected municipality and describes the process of designing and creating applications using open data from the previous process. The conclusion summarizes the whole work, and discusses whether and how the objectives are reached.
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Open Government Data
Kučera, Jan ; Jandoš, Jaroslav (advisor) ; Richta, Karel (referee) ; Šaloun, Petr (referee)
This Ph.D. thesis deals with Open Government Data and the methodology for publication of this kind of data. Public sector bodies hold a significant amount of data that can be reused in innovative way leading to development of new products and services. According to the Open Knowledge Foundation "Open data is data that can be freely used, re-used and redistributed by anyone - subject only, at most, to the requirement to attribute and sharealike." Publication and reuse of Open Government Data can lead to benefits such as increased economic growth. State, society as well as the public sector bodies themselves can benefit from Open Government Data. However the public sector bodies currently face a number of problems and issues when publishing Open Government Data, e.g. regular updates of the published datasets are not always ensured. Different public sector bodies apply different approaches to publication of Open Government Data. The main goal of this thesis is to design the Open Government Data Publication Methodology which should address current problems related to the publication of Open Government Data.
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The proposal of application development process for Linked Open Data
Budka, Michal ; Chlapek, Dušan (advisor) ; Bruckner, Tomáš (referee)
This thesis deals with the issue of Linked Open Data. The goal of this thesis is to introduce the reader to this issue as a whole and to the possibility of using Linked Open Data for developing useful applications by proposing a new development process focusing on such applications. The theoretical part offers an insight into the issue of Open Data, Linked Open Data and the NoSQL database systems and their usability in this field. It focuses mainly on graph database systems and compares them with relational database systems using predefined criteria. Additionally, the goal of this thesis is to develop an application using the proposed development process, which provides a tool for data presentation and statistical visualisation for open data sets published by the Supreme Audit Office and the Czech Trade Inspection. The application is mainly developed for the purpose of verifying the proposed development process and to demonstrate the connectivity of open data published by two different organizations.The thesis includes the process of selecting a development methodology, which is then used for optimising work on the implementation of the resulting application and the process of selecting a graph database system, that is used to store and modify open data for the purposes of the application.
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The use of linked open data for strategic knowledge game creation
Turečková, Šárka ; Svátek, Vojtěch (advisor) ; Zeman, Václav (referee)
The general theme of this thesis was the use of linked open data for a creation of games. This thesis specifically addressed the issue of usage of DBpedia for automatic question generation suitable for use in games. Within that are proposed suitable ways of selecting wanted objects from DBpedia and ways of obtaining and processing relevant information from them. Including a method for estimating renown of individual objects. Some of methods are then applied to create a program for a question generation from the data obtained through DBpedia during the run of the application. The real possibility of using these questions generated from DBpedia for gaming purposes is subsequently proved by the design, prototype and tests of a knowledge strategic multiplayer game. The paper also summarizes all the major issues and possible complications from using the data obtained through DBpedia or DBpedia Live endpoints. Current challenges and opportunities for mutual utilization of games and LOD are also briefly discussed.
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