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Contextual concept search is exposed to end users in the form of a search icon when making a selection. When clicking on that search, a concept search is executed returning documents that mention similar topic to match the key aspects of the selected text.
Smart Filters are a way of creating and modifying concepts for a power user or project creator. They can be used to quickly create document-level text classifiers. Once created, they are also useful as initial input into a AI Studio Candidate Set.