Save without index

[ynqa]

Overview

• Save without index:
  • before: <word> <index1>:<value1> <index2>:<value2> ...
  • after: <word> <value1> <value2> ...

[chewxy]

Is the reason for this smaller binary files?

[ynqa]

Simply set the format the same as original word2vec output. I also thought the indexes of word vector are unnecessary info.

[coveralls]

Coverage remained the same at 49.185% when pulling c5e520b on savewithoutindex into aa1a18b on master.

[chewxy]

This way you can just use Gorgonia's serialization methods and dump them

[coveralls]

Coverage remained the same at 49.49% when pulling c9fd2b9 on savewithoutindex into 1d350aa on master.