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Multichannel Attention Refinement for Video Question Answering

Published: 12 March 2020 Publication History

Abstract

Video Question Answering (VideoQA) is the extension of image question answering (ImageQA) in the video domain. Methods are required to give the correct answer after analyzing the provided video and question in this task. Comparing to ImageQA, the most distinctive part is the media type. Both tasks require the understanding of visual media, but VideoQA is much more challenging, mainly because of the complexity and diversity of videos. Particularly, working with the video needs to model its inherent temporal structure and analyze the diverse information it contains. In this article, we propose to tackle the task from a multichannel perspective. Appearance, motion, and audio features are extracted from the video, and question-guided attentions are refined to generate the expressive clues that support the correct answer. We also incorporate the relevant text information acquired from Wikipedia as an attempt to extend the capability of the method. Experiments on TGIF-QA and ActivityNet-QA datasets show the advantages of our method compared to existing methods. We also demonstrate the effectiveness and interpretability of our method by analyzing the refined attention weights during the question-answering procedure.

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cover image ACM Transactions on Multimedia Computing, Communications, and Applications
ACM Transactions on Multimedia Computing, Communications, and Applications  Volume 16, Issue 1s
Special Issue on Multimodal Machine Learning for Human Behavior Analysis and Special Issue on Computational Intelligence for Biomedical Data and Imaging
January 2020
376 pages
ISSN:1551-6857
EISSN:1551-6865
DOI:10.1145/3388236
Issue’s Table of Contents
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Publication History

Published: 12 March 2020
Accepted: 01 October 2019
Revised: 01 October 2019
Received: 01 April 2019
Published in TOMM Volume 16, Issue 1s

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Author Tags

  1. Video question answering
  2. attention mechanism
  3. multichannel

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  • Research-article
  • Research
  • Refereed

Funding Sources

  • National Key Research and Development Program of China
  • Chinese Knowledge Center for Engineering Sciences and Technology
  • Joint Research Program of ZJU 8 Hikvision Research Institute
  • Fundamental Research Funds for the Central Universities
  • Zhejiang Natural Science Foundation
  • National Natural Science Foundation of China

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  • (2024)Video Q &A based on two-stage deep exploration of temporally-evolving features with enhanced cross-modal attention mechanismNeural Computing and Applications10.1007/s00521-024-09482-836:14(8055-8071)Online publication date: 1-May-2024
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