as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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what does an embedding layer do in a neural network?
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an embedding layer in a neural network is used to learn a dense low dimensional representation of a sparse high dimensional input. this allows the representation of categorical data such as words, phrases, etc. to become a part of a neural network and be used in making predictions. embeddings also allow we to reduce the dimensionality of the problem, which can speed up training and improve the model's performance.
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