Master’s Thesis Presentation • Artificial Intelligence — Dynamic Fusion Techniques for Effective Multimodal Deep Learning

Wednesday, August 5, 2020 10:00 am - 10:00 am EDT (GMT -04:00)

Please note: This master’s thesis presentation will be given online.

Gaurav Sahu, Master’s candidate
David R. Cheriton School of Computer Science

Effective fusion of data from multiple modalities, such as video, speech, and text, is a challenging task due to the heterogeneous nature of multimodal data. In this work, we propose fusion techniques that aim to model context from different modalities effectively. Instead of defining a deterministic fusion operation, such as concatenation, for the network, we let the network decide how to combine given multimodal features more effectively.

We propose two networks: 1) Auto-Fusion network, which aims to compress information from different modalities while preserving the context, and 2) GAN-Fusion, which regularizes the learned latent space given context from complementing modalities. A quantitative evaluation on the tasks of multimodal machine translation and emotion recognition suggests that our adaptive networks can better model context from other modalities than all existing methods, many of which employ massive transformer-based networks.