|
| |
|
|
Visualization of technical and business metadata
Beránek, Lukáš ; Pour, Jan (advisor) ; Hora, Peter (referee)
This master's degree thesis focuses on the issues of visualization formerly preprocessed business and technical metadata in a business environment. Within the process of elabora-tion and usage of the collected data in the company, it is necessary to present the data to the users in a comfortable, comprehensible and clear way. The first goal of this thesis is to describe and to specify the term of metadata in the field of theory and on the level of busi-ness, their main structure, their occurrence in a non-visual manner and related places where we can find metadata in the heterogeneous business environment. This part also includes a short introduction to the usage of metadata that is related and originates from business in-telligence and a description of Company encyclopedia that can syndicate these resources for further utilization. When defined, the sources, destinations and purpose of technical and business metadata can be used in the second part of the thesis -- this part is aimed at model-ing the use cases for the visual component that can be applied to business and technical metadata. Use cases will be focused on the roles of the users that will use this component and to discover the primary demands and requirements of these users and the functionality that will be indispensable. After the use cases are defined we can process to the next stage of visual component development -- the data must be visualized itself and we have to find proper means to achieve this with user experience being the main focus. Then we have to encapsulate the visualization with a graphical user interface that will meet the requirements and demands of the users' roles specified by the use cases section by prototyping. Lastly, the results of the previous chapters are used to prototype the visual component suitable for a web environment which is based on principles of reusability, data-driven approach, and uses modern web technologies such as framework and library D3.js, HTML5, CSS3, and SVG.
|
|
| |
|
| |
|
|
Indexing and searching XML documents with Lucene
Beránek, Lukáš ; Kliegr, Tomáš (advisor) ; Pinkas, Otakar (referee)
The creation of analytical report is a process in which we try to obtain and preserve the results of data mining tasks for further usage. Next step after the creation is to transform them into user friendly and accessible way that can be easily access for example as an online HTML document in the SEWEBAR project. The increasing number of resulting documents is the main reason of the need to possess means to search on structured date like XML documents that correspond with the PMML standard in which the reports are currently being saved. The main goal will be in stating available means for indexing and full text searching of XML documents targeted upon searching association rules that can be found in output documents produced by programs LISp-Miner or Ferda. After the initial analysis and assessment of the current state an extension for CMS Joomla! will be created in order to satisfy the need for indexing and searching indexed data. As source files for created Jucene extension we use analytic reports saved in the database of the Joomla content management system stored in PMML format. Stored PMML document will be simplified, optimized and transformed by means of an XSL transformation for better indexing possibilities in requested structure and with maintaining logical order of the document data mining task. Transformed document will then be inserted into the Zend Lucene document index. To achieve this in PHP environment the DOMDocument library will be used. Created workflow will supply user interface for work with indexed rules. Also it will provide the users with means for searching association rules based on user specified queries which can be processed by Zend Search Lucene framework. When rules that correspond to the user query are found the system will score the results and display them to the user. One of the goals is not only to create the Jucene component but also to give its users step-by-step guidance either they are the site administrators or ordinary visitors.
|
guest ::
