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I am planning to use BERT embeddings in the LSTM embedding layer instead of the usual Word2vec/Glove Embeddings. What are the possible ways to do that?

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  • $\begingroup$ do you want the entire bert contextual embedding or just the subword embeddings? $\endgroup$ – mshlis Jun 17 at 15:27
  • $\begingroup$ I would need the contextual embeddings. $\endgroup$ – Srikant Jayaraman Jun 18 at 5:07
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Instead of using the Embedding() layer directly, you can create a new bertEmbedding() layer and use it instead.

# Sample code
# Model architecture

# Custom BERT layer
bert_output = BertLayer(n_fine_tune_layers=10)(bert_inputs)

# Build the rest of the classifier 
dense = tf.keras.layers.Dense(256, activation='relu')(bert_output)
pred = tf.keras.layers.Dense(1, activation='sigmoid')(dense)

model = tf.keras.models.Model(inputs=bert_inputs, outputs=pred)
model.compile(loss='binary_crossentropy', optimizer='adam', metrics=['accuracy'])
model.fit(...)

This article will walk you through the entire process of creating the custom BERT layer along with example code. Give it a read.

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