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Type:
Improvement
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Status: Closed
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Priority:
Minor
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Resolution: Fixed
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Affects Version/s: 0.6
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Fix Version/s: 0.6
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Component/s: None
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Labels:None
The transaction sorting job could have been made map-only, and another mapreduce job follows, so it made sense to combine them. It would have been possible to use a ChainMapper approach, but it seemed simpler to fold the functionality into the following mapper (ParallelFPGrowthMapper). The attached patch does just that.
- is related to
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MAHOUT-890 Performance issue in FPGrowth
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- Closed
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- relates to
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MAHOUT-921 FPG uses a lot of boxed primitives - this patch eliminates a bunch of List<Integer>
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- Closed
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MAHOUT-927 FPG saves a mapping from from feature to mining group, when this can be calculated on the fly
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- Closed
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