Sliding Window Attention (Longformer) Explained
In this video we talk about the sliding window attention, the diluted sliding window attention and the global+sliding window attention, as introduced in the Longformer paper. We take a look at the main disadvantage of the classical attention mechanism introduced in the Transformer paper (i.e. the quadratic time complexity) and how the sliding window attention proposes to solves this issue.
References
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Transformer Self-Attention Mechanism Explained: • Transformer Self-Attention Mechanism ...
"Longformer: The long-document transformer" paper: https://arxiv.org/abs/2004.05150
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Contents
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00:00 - Intro
00:26 - Original attention mechanism
00:50 - Sliding window attention
01:56 - Dilated sliding window attention
02:40 - Global + Sliding window attention
03:31 - Outro
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