Visual knowledge graph management tool

• Thesis title in Czech: Visual knowledge graph management tool
• Thesis title in English: Visual knowledge graph management tool
• Key words: Linked Data, visualization, RDF, knowledge management
• English key words: Linked Data, visualization, RDF, knowledge management
• Academic year of topic announcement: 2013/2014
• Thesis type: diploma thesis
• Thesis language: angličtina
• Department: Department of Software Engineering (32-KSI)
• Supervisor: doc. Mgr. Martin Nečaský, Ph.D.
• Author: hidden - assigned and confirmed by the Study Dept.
• Date of registration: 05.11.2013
• Date of assignment: 05.11.2013
• Confirmed by Study dept. on: 18.11.2013
• Date and time of defence: 05.09.2016 09:30
• Date of electronic submission: 28.07.2016
• Date of submission of printed version: 28.07.2016
• Date of proceeded defence: 05.09.2016
• Opponents: RNDr. Jiří Helmich

Guidelines

Visual knowledge graph management tool will be designed as a visualization plugin to an existing web application Payola. Plugin will be used as a visualization of the analysis results. After loading the plugin, an input field will be shown to the user where the user enters the URI of the layout configuration. The configuration defines which classes and their properties (object or simple) to display, their location in the work area and their visual properties. Each class is represented as a table, the table rows will be instances of that class, the table columns are simple properties. Classes that are connected to each other will be associated with line. Each simple property can be filtered by the filter text. Each property will have a specified value from 0 to 1 (probability with which the property is true). This value should be suitably visualize in the application. The user will be able to mark a property as invalid - such property will not be displayed but still will be stored in a graph. There must be stored informations if a property is valid, or which user and when marked it as invalid. For these purposes reificed RDF will be used. The tool will allow to a bulk properties editation - according to some algorithm, the tool will offer other properties to edit after marking some property as valid or invalid. Propose algorithms for a bulk edititation will be part of the thesis and should be the main advantage of this tool.

References

[1] Alessandro Bozzon, Marco Brambilla, Emanuele Della Valle, Piero Fraternali, Chiara Pasini. A Conceptual Framework for Linked Data Exploration. Current Trends in Web Engineering
Lecture Notes in Computer Science Volume 7059, 2012, pp 109-118.
[2] http://linkeddata.org
[3] Christian Bizer, Tom Heath, Tim Berners-Lee: Linked Data - The Story So Far. Int. J. Semantic Web Inf. Syst. 5(3): 1-22 (2009) [http://tomheath.com/papers/bizer-heath-berners-lee-ijswis-linked-data.pdf]
[4] Daniel Hienert, Benjamin Zapilko, Philipp Schaer, Brigitte Mathiak. Vizgr: Linking Data in Visualizations. Web Information Systems and Technologies
Lecture Notes in Business Information Processing Volume 101, 2012, pp 177-191.