title: Paragraph Vector or Doc2vec model size
body: <p>I am using deeplearning4j java library to build paragraph vector model (doc2vec) of dimension 100. I am using a text file. It has around 17 million lines, and size of the file is 330 MB. 
  I can train the model and calculate paragraph vector which gives reasonably good results.</p>
  
  <p>The problem is that when I try to save  the model (by writing to disk) with WordVectorSerializer.writeParagraphVectors (dl4j method) it takes around 20 GB of space.  And around 30GB when I use native java serializer. </p>
  
  <p>I'm thinking may be the model is size is too big for that much data. Is the model size 20GB reasonable for the text data of 300 MB?  </p>
  
  <p>Comments are also welcome from people who have used doc2vec/paragraph vector in other library/language. </p>
  
  <p>Thank you!</p>