Servers, display devices, scrolling methods and methods of generating heatmaps

A server, comprising:

• an interface;
• and
• a semantic heatmap module configured to
• receive information associated with a plurality of zones of a content item,
• generate first concept clouds by associating first concepts to the information, the first concept clouds representing the first concepts,
• group the first concept clouds by zone,
• receive at least one target content characteristic,
• generate at least one second concept cloud by associating at least one second concept to the at least one target content characteristic, the second concept cloud representing the at least one second concept, and
• assign a zone heat to each of the zones by determining a similarity between the grouped first concept clouds associated to each of the zones and the at least one second concept cloud.

A display device, comprising:

• a reading module;
• a braking module configured to vary at least one scroll characteristic of the display device based on a heatmap of weighted correlations between a plurality of first concepts based on a content item and at least one second concept based on a user goal;
• and
• an I/O device.