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Support for sparse feature indices #1

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seamusabshere opened this issue Feb 21, 2013 · 0 comments
Open

Support for sparse feature indices #1

seamusabshere opened this issue Feb 21, 2013 · 0 comments

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@seamusabshere
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Sally generates LibSVM vector spaces like

1 1191618:0.973645 1243483:0.362496 1346494:0.995527
0 1243483:0.226674 1346494:0.997515 2362908:1 4604526:1

where feature indices are really (murmur3?) hashes of words.

Maybe we could do

Svm::Model#predict(1191618 => 0.973645, 1243483 => 0.362496 [etc]
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@seamusabshere