Title
Dual Hierarchical Temporal Convolutional Network with QA-Aware Dynamic Normalization for Video Story Question Answering
Abstract
Video story question answering (video story QA) is a challenging problem, as it requires a joint understanding of diverse data sources (i.e., video, subtitle, question, and answer choices). Existing approaches for video story QA have several common defects: (1) single temporal scale; (2) static and rough multimodal interaction; and (3) insufficient (or shallow) exploitation of both question and answer choices. In this paper, we propose a novel framework named Dual Hierarchical Temporal Convolutional Network (DHTCN) to address the aforementioned defects together. The proposed DHTCN explores multiple temporal scales by building hierarchical temporal convolutional network. In each temporal convolutional layer, two key components, namely AttLSTM and QA-Aware Dynamic Normalization, are introduced to capture the temporal dependency and the multimodal interaction in a dynamic and fine-grained manner. To enable sufficient exploitation of both question and answer choices, we increase the depth of QA pairs with a stack of non-linear layers, and exploit QA pairs in each layer of the network. Extensive experiments are conducted on two widely used datasets: TVQA and MovieQA, demonstrating the effectiveness of DHTCN. Our model obtains state-of-the-art results on the both datasets.
Year
DOI
Venue
2020
10.1145/3394171.3413649
MM '20: The 28th ACM International Conference on Multimedia Seattle WA USA October, 2020
DocType
ISBN
Citations 
Conference
978-1-4503-7988-5
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Fei Liu142.07
Jing Liu2178188.09
Xinxin Zhu315.42
Richang Hong44791176.47
Hanqing Lu54620291.38