I guess this question is supposed to ask to Youtube directly, but who knows, someone here might know or tinkering with this.
Sometimes I saw on analytic that my video were placed on someone else video on watch page that doesn't relevant to my niche as suggested video. Is it because there is similar tags on their video ? Or is it because the category of the video is the same as mine ? Or there are some words or sentence in their video description that is similar to my video either on tags/keywords/description ? Or it's just random ? I look at their title of the video, it's not the same at all, even one word.
Sometimes I saw on analytic that my video were placed on someone else video on watch page that doesn't relevant to my niche as suggested video. Is it because there is similar tags on their video ? Or is it because the category of the video is the same as mine ? Or there are some words or sentence in their video description that is similar to my video either on tags/keywords/description ? Or it's just random ? I look at their title of the video, it's not the same at all, even one word.