Attention, please! A survey of neural attention models in deep learning

By Alana de Santana Correia, Esther Luna Colombini. 2021

291 citations recorded by the source corpus.

In humans, Attention is a core property of all perceptual and cognitive operations. Given our limited ability to process competing sources, attention mechanisms select, modulate, and focus on the information most relevant to behavior. For decades, concepts and functions of attention have been studied in philosophy, psychology, neuroscience, and computing. For the last 6 years, this property has been widely explored in deep neural networks. Currently, the state-of-the-art in Deep Learning is represented by neural attention models in several application domains. This survey provides a comprehensive overview and analysis of developments in neural attention models. We systematically reviewed hundreds of architectures in the area, identifying and discussing those in which attention has shown a significant impact. We also developed and made public an automated methodology to facilitate the development of reviews in the area. By critically analyzing 650 works, we describe the primary uses of attention in convolutional, recurrent networks, and generative models, identifying common subgroups of uses and applications. Furthermore, we describe the impact of attention in different application domains and their impact on neural networks’ interpretability. Finally, we list possible trends and opportunities for further research, hoping that this review will provide a succinct overview of the main attentional models in the area and guide researchers in developing future approaches that will drive further improvements.

Subfields: Artificial Intelligence, Computer Vision and Pattern Recognition

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Citations in the corpus

Transformers in Vision: A Survey (2021, methodology): “though attention models have been extensively used in both feed-forward and recurrent networks [27], [28], Transformers are based solely on the attention mechanism and”