MediaPost: Viacom’s marketing and creative team, Viacom Velocity, announced a partnership with Canvs, a tech platform that measures and interprets viewer sentiment in language. Velocity uses a social graph called Echo, which measures the effectiveness of campaigns on social media. Canvs uses a database of language commonly used in social media to track emotional reactions to TV shows. The companies hope to expand the measurement capabilities of Canvs by enabling them to track conversations across Facebook, Twitter, Instagram, YouTube and Tumblr.