GabrielChu questions

• NLP - Embeddings selection of `start` and `end` of sentence tokens
• Quickly find indices that have values larger than a threshold in Numpy/PyTorch
• `get_variable()` doesn't recognize existing variables for tf.estimator
• How to handle log(0) when using cross entropy
• How to get word2index from gensim
• Java stream with method references for instanceof and class cast
• What are the differences between tf.initialize_all_variables() and tf.global_variables_initializer()
• Understanding `tf.nn.nce_loss()` in tensorflow
• What does global_step mean in Tensorflow?
• How to compile Tensorflow with SSE4.2 and AVX instructions?

GabrielChu answers