Often a Search for a term or a hashtag is insufficient for finding exactly what one is looking for. For further drilling down, all Searches can be extended with one or more Filters. The set of available Filters depends on the functional capabilities of the corresponding social API, so it differs from channel to channel. Adding or changing a Filter is equivalent to modifying an existing Search, so the effects are only visible after the modification has been saved.

Filters always work cumulatively, so effectively they always narrow the data pipe. A Filter description is given along with the description of each social Search type.

Filters are added by choosing them from the Filters dropdown menu. Active Filters are shown as floating elements at the top of a Search. The floating elements act as toggles: clicking them once expands the Filter, while clicking them again collapses it again (while remaining active). Filters can be removed from a Search by clicking the delete symbol in their right top corner.

Filters come in two categories: specific filters and generic filters. The former category contains those filters that differ from Search type to Search type or social network to social network. An example is the language filter that is only available for Twitter Searches. Specific filters correspond to API parameters that can be set in the requests to the social network and this implies that posts that do not satisfy the relevant filter criterion are not sent to Viz Social and do not burden the platform.

Generic filters on the other hand are universal across all Search types and are activate on Viz Social itself. As a result, posts that are filtered out by generic filters still eat system resources, even though they are thrown out of the incoming processing queues.

Generic filters are:

• Search Filter

• Exclude Filter

• Originator Filter

• Media