Tekusová, Tatiana ; Voss, Viktor ; Kohlhammer, Jörn (2008)
Semantic Search and Visualization of Time-Series Data.
I-KNOW '08 and I-MEDIA '08. Proceedings.
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
In the economic and financial analysis domain a quick access to the right information plays a major role. Using current systems, the search for and presentation of data is very cumbersome. The data, mostly in form of time-series, is stored in various databases. In order to retrieve the searched data, the analysts need to know where to search and sometimes even the structure of the database and its coding. Then it is required to export the data, process the data and create a chart to view the data. This might take time from tens of minutes to hours. In our work we present a first prototype of an integrated search engine that takes as input a natural language query and offers graphic and text output depending on the user task. The system automatically identifies the time-series answers, types of graphical data presentation and shows the results in a web browser and in Excel. The knowledge-based expert system uses domain ontologies for extraction of economic terms in the search queries and specially built data type taxonomy with user task and chart type ontologies for identification of graphic output.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2008 |
| Autor(en): | Tekusová, Tatiana ; Voss, Viktor ; Kohlhammer, Jörn |
| Art des Eintrags: | Bibliographie |
| Titel: | Semantic Search and Visualization of Time-Series Data |
| Sprache: | Englisch |
| Publikationsjahr: | 2008 |
| Verlag: | Know-Center, Graz |
| Reihe: | J.UCS Journal of Universal Computer Science; Special Issue |
| Veranstaltungstitel: | I-KNOW '08 and I-MEDIA '08. Proceedings |
| Kurzbeschreibung (Abstract): | In the economic and financial analysis domain a quick access to the right information plays a major role. Using current systems, the search for and presentation of data is very cumbersome. The data, mostly in form of time-series, is stored in various databases. In order to retrieve the searched data, the analysts need to know where to search and sometimes even the structure of the database and its coding. Then it is required to export the data, process the data and create a chart to view the data. This might take time from tens of minutes to hours. In our work we present a first prototype of an integrated search engine that takes as input a natural language query and offers graphic and text output depending on the user task. The system automatically identifies the time-series answers, types of graphical data presentation and shows the results in a web browser and in Excel. The knowledge-based expert system uses domain ontologies for extraction of economic terms in the search queries and specially built data type taxonomy with user task and chart type ontologies for identification of graphic output. |
| Freie Schlagworte: | Forschungsgruppe Visual Search and Analysis (VISA), Information visualization, Expert systems, Semantic search, Time series data visualization, Financial data, Economic data |
| Fachbereich(e)/-gebiet(e): | 20 Fachbereich Informatik 20 Fachbereich Informatik > Graphisch-Interaktive Systeme |
| Hinterlegungsdatum: | 16 Apr 2018 09:03 |
| Letzte Änderung: | 18 Nov 2018 22:27 |
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