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- W2893261602 abstract "Most existing work on video recommendation focuses on recommending a video as a whole, largely due to the unavailability of semantic information on video shot-level. Recently a new type of video comments has emerged, called time-sync comments, that are posted by users in real playtime of a video, thus each has a timestamp relative to the video playtime. In the present paper, we propose to utilize time-sync comments for three research tasks that are infeasible or difficult to tackle in the past, namely (1) video clustering based on temporal user emotional/topic trajectory inside a video; (2) video highlight shots recommendation unsupervisedly; (3) personalized video shot recommendation tailored to user moods. We analyze characteristics of time-sync comments, and propose feasible solutions for each research task. For task (1), we propose a deep recurrent auto-encoder framework coupled with dictionary learning to model user emotional/topical trajectories in a video. For task (2), we propose a scoring method based on emotional/topic concentration in time-sync comments for candidate highlight shot ranking. For task (3), we propose a joint deep collaborative filtering network that optimizes ranking loss and classification loss simultaneously. Evaluation methods and preliminary experimental results are also reported. We plan to further refine our models for task (1) and (3) as our next step." @default.
- W2893261602 created "2018-10-05" @default.
- W2893261602 creator A5047553143 @default.
- W2893261602 date "2018-09-27" @default.
- W2893261602 modified "2023-09-27" @default.
- W2893261602 title "Video recommendation using crowdsourced time-sync comments" @default.
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- W2893261602 doi "https://doi.org/10.1145/3240323.3240329" @default.
- W2893261602 hasPublicationYear "2018" @default.
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