Treemap word cloud (adapted from this example and keeping into account the bugfix used in this example). It shows the volume of messages with those keywords retrieved from Twitter. The technique used to color the words is taken from this example.
This is a visualization for the European project CASSANDRA.
Treemap word cloud (similar to this example) showing the most popular tags used in a forum about drugs. Each thread of the forum may have one or more associated tags. The frequency is calculated keeping into account the number of posts in each thread. Important keywords are emphasized.
This is a visualization for the European project CASSANDRA.
Treemap word cloud (similar to this example) showing the most used words in a forum about drugs. Thanks to the stemming process, the problem of counting singular and plural forms of the same word as different words is avoided, but the side effect is that some stems are no longer readable words with a meaning. Important keywords are emphasized (those not affected by the stemming).
This is a visualization for the European project CASSANDRA.
This example shows the interactions of a group of forum users in the form of a matrix. The interaction is computed by taking into account the number of posts the users wrote into threads with common tags (tags are chosen from a list of relevant keywords). To make clusters more evident we sort the users with a hierarchical clustering algorithm.
A linear luminance multihue color scale is used to improve the readability of the color encoding.
Radial tree depicting the structure of a forum analysed in the Cassandra project. The area of each node depends from the number of posts contained in the respective section of the forum. It is not truly proportional, since nodes having no posts have an area that is greater than 0 in order to make them visible. The layout comes from this example.
An isometric treemap using tree colors to help in differentiating subtrees and perceiving hierarchy depth. Since leaves can be attached also to nodes that are not at the end of the hierarchy, a flat space is used to represent those leaves. The hierarchy is the structure of a forum analysed in the Cassandra project.