yuhao yang created SPARK-7089:
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Summary: Introduce LDAOptimizer to LDA to improve extensibility
Key: SPARK-7089
URL: https://issues.apache.org/jira/browse/SPARK-7089
Project: Spark
Issue Type: Improvement
Components: MLlib
Affects Versions: 1.3.1
Reporter: yuhao yang
LDA was implemented with extensibility in mind. And with the development of
OnlineLDA and Gibbs Sampling, we are collecting more detailed requirements from
different algorithms.
As Joseph Bradley proposed in https://github.com/apache/spark/pull/4807 and
with some further discussion, we'd like to adjust the code structure a little
to present the common interface and extension point clearly.
Basically class LDA would be a common entrance for LDA computing. And each LDA
object will refer to a LDAOptimizer for the concrete algorithm implementation.
Users can customize LDAOptimizer with specific parameters and assign it to LDA.
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