ONDA

Help with this page

What can I see on the clusters page?

By default, the clusters page shows a treemap with the top five topics which have been entirely active (beginning and ending) within the past week, though the filter can be changed to whatever time period you like, as well as setting a different limit and a different range type, such as "last active within" or "originating in"

What is 'topical diversity'?

Topical Diversity refers to the diversity 'score' which ONDA has assigned to a source for a certain time period (and perhaps other parameters). It refers to the number of topics/clusters a source is covering in a given period, such as a day, as a proportion of all the topics covered by all sources on that day. For example, the Guardian may have a score of 0.4 on one day, meaning 40% of the topics of the day were covered by the Guardian, but the Mail may have 0.5, which is a higher score meaning 50% of the topics were covered.

What is a treemap, and what can it tell me?

A treemap is a way of visualizing hierarchical data in an intuitive way. Each section of the treemap corresponds to a value for something, such a topic size or the number of articles contributed by a source. The larger the section as a proportion of the entire treemap, the higher the value of whatever it's representing.