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"Visualizations"
Trend Chart
December 6, 2010 by admin
Showing the rise and decay of topics over the last two months (= default setting, which can be changed using the date selector), the trend chart provides the following time series: Frequency (Total, Positive and Negative). The displayed frequency values represent the number of occurrences in the last seven days. Selecting positive or negative frequency [...]
Continue Reading →Ontology Graph
December 4, 2010 by admin
The ontology graph displays a clickable domain ontology that matches documents and concepts to help users determine their current location in the information space. The ontology graph depicts hierarchical relations as arrows. The currently active document is highlighted by a yellow asterisk, and the letters [1-5] represent the classification of the five highest-ranking documents in [...]
Continue Reading →The tag cloud visualizes the most relevant keywords identified in recent online publications of a stakeholder group. Terms are arranged alphabetically; size and opacity are proportional to their importance – i.e., their relative frequency in the text archive. Users can adapt the zoom factor of the display and select terms by clicking on them, which [...]
Continue Reading →Information Landscape
December 4, 2010 by admin
Information landscapes allow clustering and visualizing massive amounts of textual data. They implement the concept of ‘location’ in an innovative way that transcends the traditional geographic interpretation. The Information Landscape resembles a geographic map at first sight. Instead of geographic proximity, however, it represents semantic similarity between documents. At the time of map generation, its [...]
Continue Reading →Geographic Map
December 4, 2010 by admin
The geographic map shows the locations of documents based on analyzing their textual content (a process typically referred to as “geo-tagging”). The Active Document is highlighted by a yellow asterisk, and the letters [a-e] represent the five highest-ranking documents in the Similar Topics view. If users have an interest in a specific location rather than [...]
Continue Reading →Keyword Graph
December 2, 2010 by admin
Each full-text query activates a new window that shows the search term together with its strongest associations within the search results (the shown associations therefore consider the sample, selected time interval and global sentiment filter): The color of data points encodes the sentiment of a term. Clicking on any of the new terms extends the [...]
Continue Reading →Categories
Keywords
