  Recently, video summarization has been proposed as a method to help video
exploration. However, traditional video summarization models only generate a
fixed video summary which is usually independent of user-specific needs and
hence limits the effectiveness of video exploration. Multi-modal video
summarization is one of the approaches utilized to address this issue.
Multi-modal video summarization has a video input and a text-based query input.
Hence, effective modeling of the interaction between a video input and
text-based query is essential to multi-modal video summarization. In this work,
a new causality-based method named Causal Video Summarizer (CVS) is proposed to
effectively capture the interactive information between the video and query to
tackle the task of multi-modal video summarization. The proposed method
consists of a probabilistic encoder and a probabilistic decoder. Based on the
evaluation of the existing multi-modal video summarization dataset,
experimental results show that the proposed approach is effective with the
increase of +5.4% in accuracy and +4.92% increase of F 1- score, compared with
the state-of-the-art method.
