[mlpack-git] [mlpack/mlpack] Implementation of Multiprobe LSH (#691)

[Ryan Curtin]

> +    hashMat.zeros(T, numTablesToSearch);
> +
> +    for (size_t i = 0; i < numTablesToSearch; ++i)
> +    {
> +      // construct this table's probing sequence of length T
> +      arma::mat additionalProbingBins;
> +      //arma::vec dummyBins;
> +      //dummyBins.zeros(T, 1);
> +      GetAdditionalProbingBins(allProjInTables.unsafe_col(i),
> +                                queryCodesNotFloored.unsafe_col(i),
> +                                T,
> +                                additionalProbingBins);
> +
> +      // map the probing bin to second hash table bins
> +      hashMat.col(i) = additionalProbingBins.t() * secondHashWeights;
> +      //hashMat.col(i) = dummyBins;

You can probably remove the commented out debugging code :)

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