DLM-VMTL:A Double Layer Mapper for heterogeneous data video Multi-task prompt learning
This addresses the problem of computational inefficiency in video understanding for researchers and practitioners, though it is incremental as it adapts multi-task learning from images to videos.
The paper tackles the high overhead of fine-tuning or pre-training large video models for specific tasks by proposing a heterogeneous data video multi-task prompt learning method, which achieves better performance than baselines on 6 video understanding tasks across 11 datasets.
In recent years, the parameters of backbones of Video Understanding tasks continue to increase and even reach billion-level. Whether fine-tuning a specific task on the Video Foundation Model or pre-training the model designed for the specific task, incurs a lot of overhead. How to make these models play other values than their own tasks becomes a worthy question. Multi-Task Learning(MTL) makes the visual task acquire the rich shareable knowledge from other tasks while joint training. It is fully explored in Image Recognition tasks especially dense predict tasks. Nevertheless, it is rarely used in video domain due to the lack of multi-labels video data. In this paper, a heterogenous data video multi-task prompt learning (VMTL) method is proposed to address above problem. It's different from it in image domain, a Double-Layers Mapper(DLM) is proposed to extract the shareable knowledge into visual promptS and align it with representation of primary task. Extensive experiments prove that our DLM-VMTL performs better than baselines on 6 different video understanding tasks and 11 datasets.