But the embedding matrix will not be stored contiguously, which has benefits, especially when frequent words are stored together (which happens in some implemen

But the embedding matrix will not be stored contiguously, which has benefits, especially when frequent words are stored together (which happens in some implementations, because they sort the vocabulary by frequency), due to page-granularity of mapping, etc. Also, in this particular implementation: By default, LMDB Embeddings uses pickle to serialize the vectors to bytes (optimized and pickled with the highest available protocol). However, it is very easy to use an alternative approach such as msgpack So, they use serialization/deserialization.