Comment-aided Video-Language Alignment via Contrastive Pre-training for Short-form Video Humor Detection
Yang Liu, Tongfei Shen, Dong Zhang, Qingying Sun, Shoushan Li, Guodong Zhou
TL;DR
This work tackles short-form video humor detection (SVHD) by introducing CVLA, a two-branch hierarchical model that aligns video (vision+audio) and language (title+comments) into a unified semantic space. A data-augmented contrastive pre-training strategy leverages large-scale unlabeled short-form videos to jointly learn video-language alignment and a robust multi-modal fusion representation, then fine-tunes on labeled data for humor detection. The approach yields state-of-the-art performance on DY11k and UR-FUNNY, demonstrating the value of incorporating comments as social-contextual signals and of contrastive pre-training to bridge modality gaps. The expanded DY11k dataset and the CVLA framework offer a generalizable paradigm for multi-modal understanding in short-form media, with potential extension to long-form video tasks.
Abstract
The growing importance of multi-modal humor detection within affective computing correlates with the expanding influence of short-form video sharing on social media platforms. In this paper, we propose a novel two-branch hierarchical model for short-form video humor detection (SVHD), named Comment-aided Video-Language Alignment (CVLA) via data-augmented multi-modal contrastive pre-training. Notably, our CVLA not only operates on raw signals across various modal channels but also yields an appropriate multi-modal representation by aligning the video and language components within a consistent semantic space. The experimental results on two humor detection datasets, including DY11k and UR-FUNNY, demonstrate that CVLA dramatically outperforms state-of-the-art and several competitive baseline approaches. Our dataset, code and model release at https://github.com/yliu-cs/CVLA.
