Github user takuti commented on the issue:
https://github.com/apache/incubator-hivemall/pull/89
> Adding an alias -tol for -eps is a good idea.
Sure.
> it accept the input format of Hivemall's feature vector
Oh, it's not format matter by the way; `String` or `FeatureValue` in terms
of type.
Current implementation repeatedly parses feature-value-formatted `String`
at
[HERE](https://github.com/takuti/incubator-hivemall/blob/bc4b9d3a13310d85c0fb4fc572d0338fefee0a8d/core/src/main/java/hivemall/topicmodel/AbstractProbabilisticTopicModel.java#L66-L69)
for every time mini-batch is passed. If we directly pass a two-dimensional
array of `FeatureValue` as word counts, we can avoid the unnecessary parse
operations.
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