Techniques are provided for enhancing the targeting, selection, review, and presentation of online social network (OSN) data pertinent to an evidence context. In one formulation, a concept taxonomy is determined from a request frame relating to targeted OSN data. The concept taxonomy is transformed into query terms for searching targeted OSN data stored in an OSN data collection; a review set of OSN data entities aligned with the request frame is formulated. In another formulation, a presentation model is generated corresponding to an evidence context which is populated with OSN data entities in a review set; the presentation model is displayed on a user interface. Indications of relevance by a user on the user interface change content or properties of the OSN data entities in the review set.
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