MMBERT: Multimodal BERT Pretraining for Improved Medical VQA

التفاصيل البيبلوغرافية
العنوان: MMBERT: Multimodal BERT Pretraining for Improved Medical VQA
المؤلفون: Khare, Yash, Bagal, Viraj, Mathew, Minesh, Devi, Adithi, Priyakumar, U Deva, Jawahar, CV
سنة النشر: 2021
المجموعة: Computer Science
مصطلحات موضوعية: Computer Science - Computer Vision and Pattern Recognition, Computer Science - Computation and Language, Computer Science - Machine Learning
الوصف: Images in the medical domain are fundamentally different from the general domain images. Consequently, it is infeasible to directly employ general domain Visual Question Answering (VQA) models for the medical domain. Additionally, medical images annotation is a costly and time-consuming process. To overcome these limitations, we propose a solution inspired by self-supervised pretraining of Transformer-style architectures for NLP, Vision and Language tasks. Our method involves learning richer medical image and text semantic representations using Masked Language Modeling (MLM) with image features as the pretext task on a large medical image+caption dataset. The proposed solution achieves new state-of-the-art performance on two VQA datasets for radiology images -- VQA-Med 2019 and VQA-RAD, outperforming even the ensemble models of previous best solutions. Moreover, our solution provides attention maps which help in model interpretability. The code is available at https://github.com/VirajBagal/MMBERT
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2104.01394
رقم الانضمام: edsarx.2104.01394
قاعدة البيانات: arXiv