问题 I am new to Keras. My goal is to create a Neural Network Multi-Classification for Sentiment Analysis for tweets. I used Sequential in Keras to build my model. I want to use pre-trained word embeddings in the first layer of my model, specifically gloVe . Here is my model currently: model = Sequential() model.add(Embedding(vocab_size, 300, weights=[embedding_matrix], input_length=max_length, trainable=False)) model.add(LSTM(100, stateful=False)) model.add(Dense(8, input_dim=4, activation='relu'