Welcome to the Text Explorer. This system allows you to explore a concept map of a document collection.

• The brightness of a concept is related to its frequency (i.e. the brighter the concept, the more often it appears in the text).
• The brightness of links relate to how often the two connected concepts co-occur closely within the text.
• Nearness in the map indicates that two concepts appear in similar conceptual contexts (i.e. they co-occur with similar other concepts)

• Left-Click on a concept to reveal its links.
• Left-Click on a vacant position to hide all the visible links.
• Drag on the map to scroll (Right-Click to centre it again).
• <Shift>-Click to zoom in, and <Ctrl>-Click to zoom out.
• Right-Button-Drag to draw on the map, and Right-Click to clear all drawings.
• Use the upper slider to change the number of concepts visible on the map.
• Use the middle slider to change the size of themes on the map.
• Use the lower slider to rotate the map.
• To open a larger version of the map, click Max. You can then resize the new map window.
• Clicking on the Learn button performs the clustering process for an additional 1000 steps. Click on Reset to randomise the concept locations in order to cluster from scratch.
• For Apple users, use Apple-Click (or Command-Click) to perform a Right-Click.

Alternatively, a Text Document Summary is available, which also gives access to the full text.