25. The computer-executed method of claim 24 , wherein determining that at least one social media content item authored by the social user is aligned to the topic comprises: determining a confidence score indicative of a probability that the social media content items is relevant to the topic; and aligning the social media content item with the topic based on the confidence score.
25. The computer-executed method of claim 24 , wherein determining that at least one social media content item authored by the social user is aligned to the topic comprises: determining a confidence score indicative of a probability that the social media content items is relevant to the topic; and aligning the social media content item with the topic based on the confidence score. 26. The computer-executed method of claim 25 , wherein determining that at least one social media content item authored by the social user is relevant to the first time based media event comprises: extracting event features from annotations associated with the time based media event; extracting social media features from the social media content item; and determining the confidence score based on a relationship between the event features and social media features.