9. A system for processing a video, the system comprising: a computer processor; and a computer-readable storage medium storing executable code, the code when executed by the processor performs steps comprising: storing the video and associated metadata in a multimedia database of the system, wherein the metadata includes a plurality of tokens that are provided from a user who uploaded the video to the system; determining, for each of the plurality of tokens, a concept associated with the token; determining a number of concepts related to content of the video and a number of distinct concepts unrelated to the content of the video from concepts determined from the plurality of tokens; and marking the video as spam responsive to the number of distinct concepts unrelated to the content of the video exceeding a threshold.
9. A system for processing a video, the system comprising: a computer processor; and a computer-readable storage medium storing executable code, the code when executed by the processor performs steps comprising: storing the video and associated metadata in a multimedia database of the system, wherein the metadata includes a plurality of tokens that are provided from a user who uploaded the video to the system; determining, for each of the plurality of tokens, a concept associated with the token; determining a number of concepts related to content of the video and a number of distinct concepts unrelated to the content of the video from concepts determined from the plurality of tokens; and marking the video as spam responsive to the number of distinct concepts unrelated to the content of the video exceeding a threshold. 10. The system of claim 9 , wherein the code when executed by the processor performs a further step of removing the video from the multimedia database when the video is marked as spam.