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What is: Feedback Transformer?

SourceAddressing Some Limitations of Transformers with Feedback Memory
Year2000
Data SourceCC BY-SA - https://paperswithcode.com

A Feedback Transformer is a type of sequential transformer that exposes all previous representations to all future representations, meaning the lowest representation of the current timestep is formed from the highest-level abstract representation of the past. This feedback nature allows this architecture to perform recursive computation, building stronger representations iteratively upon previous states. To achieve this, the self-attention mechanism of the standard Transformer is modified so it attends to higher level representations rather than lower ones.