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In an attention mechanism, the Key is a vector associated with each item in the input sequence. It serves as a 'label' or searchable representation of its corresponding Value. The Query vector is compared with each Key vector to determine the degree of relevance or 'attention score' for each item in the sequence.

Key (Attention)

In an attention mechanism, a model calculates a score between a 'Query' vector and several 'Key' vectors to determine how much attention to pay to different parts of an input. What is the primary function of the 'Key' vector in this comparison process?

Within the model's attention mechanism, which component is specifically designed to serve as this searchable representation or 'label' for each input item, against which the current context is compared to determine relevance?

Attention Mechanism Troubleshooting

In a sequence-processing model using an attention mechanism, the model needs to determine which words in an input sentence are most relevant to the current word it is processing. If the 'Key' vectors associated with every word in the input sentence were made identical to each other, what would be the most direct consequence for the attention calculation?

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