3. The computer-implemented method of claim 2 , wherein the interaction is associated with an interaction strength, the interaction strength describing a degree of association of the user and the video.
3. The computer-implemented method of claim 2 , wherein the interaction is associated with an interaction strength, the interaction strength describing a degree of association of the user and the video. 5. The computer-implemented method of claim 3 , wherein the STS of the stream topic of the video is modified according to the interaction strength.