CCS Concepts:

1 INTRODUCTION

2 BACKGROUND - THE ADVANCE EVOLUTION OF MULTIMODAL ARCHITECTURES
2.1 Comparison with previous surveys

3 MULTIMODAL DEEP LEARNING APPROACHES
3.1 Multimodal Task-Specific Methods
3.2 Multimodal Pre-training Methods
3.3 Discussion
3.4 Acronyms

4 MULTIMODAL APPLICATIONS
4.1 Understanding
4.2 Classification
4.3 Generation
4.4 Retrieval
4.5 Multimodal Translation (MMT)

5 DATASET

6 FUTURE FORECASTING

7 CONCLUSION