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adding a markdown readme

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1 parent 1f80188 commit 21d47c80684d15a89eea74326a6d4b7e7b620934 @ashenfad ashenfad committed Jul 13, 2011
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-This project is an implementation of the streaming, one-pass histograms described in Ben-Haim's [Streaming Parallel Decision Trees](http://jmlr.csail.mit.edu/papers/v11/ben-haim10a.html).
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+# About
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+This project is an implementation of the streaming, one-pass histograms described in Ben-Haim's [Streaming Parallel Decision Trees](http://jmlr.csail.mit.edu/papers/v11/ben-haim10a.html).
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+The histograms act as an approximation of the underlying dataset. They can be used for visualization, discretization, or analysis. This includes finding the median or any other percentile in one pass. The histograms may be built independently and combined, making them a good fit for map-reduce algorithms.
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