Remove uneeded commented code
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@@ -225,39 +225,19 @@ namespace platform {
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for (int sf_value = 0; sf_value < sf; ++sf_value) {
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idx = (featureClassOffset_[feature] + sf_value) * statesClass_ + c;
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countVal = classFeatureCounts_[idx];
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p = ((countVal + SMOOTHING / (statesClass_ * states_[feature])) / (totalCount + SMOOTHING));
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p = ((countVal + alpha_ / (statesClass_ * states_[feature])) / (totalCount + alpha_));
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classFeatureProbs_[idx] = p;
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}
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}
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}
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}
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// double alpha = SMOOTHING;
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// for (int feature = 0; feature < nFeatures_; ++feature) {
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// int sf = states_[feature];
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// for (int c = 0; c < statesClass_; ++c) {
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// double denom = classCounts_[c] + alpha * sf; // typical Laplace smoothing denominator
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// if (classCounts_[c] <= 0.0) {
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// // fallback => uniform
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// for (int sf_value = 0; sf_value < sf; ++sf_value) {
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// int idx = (featureClassOffset_[feature] + sf_value) * statesClass_ + c;
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// classFeatureProbs_[idx] = 1.0 / sf;
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// }
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// } else {
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// for (int sf_value = 0; sf_value < sf; ++sf_value) {
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// int idx = (featureClassOffset_[feature] + sf_value) * statesClass_ + c;
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// double countVal = classFeatureCounts_[idx];
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// // standard NB with Laplace alpha
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// double p = (countVal + alpha) / denom;
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// classFeatureProbs_[idx] = p;
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// }
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// }
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// }
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// }
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// getCountFromTable(int classVal, int pIndex, int childIndex)
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// (3) p(x_j=sj | c, x_i=si) => data_(i,si,j,sj,c)
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// (3) p(x_i=si | c, x_j=sj) => dataOpp_(j,sj,i,si,c)
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double pccCount, pcCount, ccCount;
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// (3) p(x_c=sc | c, x_p=sp) => data_(parent,sp,child,sc,c)
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// (3) p(x_p=sp | c, x_c=sc) => dataOpp_(child,sc,parent,sp,c)
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// C(x_c, x_p, c) + alpha_/Card(xp)
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// P(x_p | x_c, c) = -----------------------------------
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// C(x_c, c) + alpha_
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double pcc_count, pc_count, cc_count;
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double conditionalProb, oppositeCondProb;
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int part1, part2, p1, part2_class, p1_class;
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for (int parent = 1; parent < nFeatures_; ++parent) {
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@@ -265,9 +245,6 @@ namespace platform {
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p1 = featureClassOffset_[parent] + sp;
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part1 = pairOffset_[p1];
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p1_class = p1 * statesClass_;
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// int parentStates = states_[parent];
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for (int child = 0; child < parent; ++child) {
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for (int sc = 0; sc < states_[child]; ++sc) {
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part2 = featureClassOffset_[child] + sc;
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@@ -275,25 +252,16 @@ namespace platform {
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for (int c = 0; c < statesClass_; c++) {
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idx = (part1 + part2) * statesClass_ + c;
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// Parent, Child, Class Count
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pccCount = data_[idx];
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pcc_count = data_[idx];
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// Parent, Class count
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pcCount = classFeatureCounts_[p1_class + c];
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pc_count = classFeatureCounts_[p1_class + c];
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// Child, Class count
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ccCount = classFeatureCounts_[part2_class + c];
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conditionalProb = (pccCount + SMOOTHING / states_[parent]) / (ccCount + SMOOTHING);
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// pcCount = classFeatureCounts_[(featureClassOffset_[parent] + sp) * statesClass_ + c];
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// // This is the "parent, class" count
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// int childStates = states_[child];
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// conditionalProb = (pccCount + alpha) / (pcCount + alpha * childStates);
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cc_count = classFeatureCounts_[part2_class + c];
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// p(x_c=sc | c, x_p=sp)
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conditionalProb = (pcc_count + alpha_ / states_[parent]) / (cc_count + alpha_);
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data_[idx] = conditionalProb;
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oppositeCondProb = (pccCount + SMOOTHING / states_[child]) / (pcCount + SMOOTHING);
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// ccCount = classFeatureCounts_[(featureClassOffset_[child] + sc) * statesClass_ + c];
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// oppositeCondProb = (pccCount + alpha) / (ccCount + alpha * parentStates);
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// p(x_p=sp | c, x_c=sc)
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oppositeCondProb = (pcc_count + alpha_ / states_[child]) / (pc_count + alpha_);
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dataOpp_[idx] = oppositeCondProb;
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}
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}
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@@ -486,7 +454,7 @@ namespace platform {
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MatrixState matrixState_;
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double SMOOTHING = 1.0;
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double alpha_ = 1.0;
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std::vector<int> active_parents;
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};
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}
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