Examples with structures._Stn structures._Stn used on opensource projects

Example 56 with structures._Stn

use of structures._Stn in project IR_Base by Linda-sunshine.

the class HTSM method ComputeEmissionProbsForDoc.

@Override
// Construct the emission probabilities for sentences under different topics in a particular document.
void ComputeEmissionProbsForDoc(_Doc d) {
    for (int i = 0; i < d.getSenetenceSize(); i++) {
        _Stn stn = d.getSentence(i);
        Arrays.fill(emission[i], 0);
        int start = 0, end = this.number_of_topics;
        if (i == 0 && d.getSourceType() == 2) {
            // first sentence is specially handled for newEgg
            // get the sentiment label of the first sentence
            int sentimentLabel = stn.getStnSentiLabel();
            if (sentimentLabel == 0) {
                // positive sentiment in the first half
                end = this.number_of_topics / 2;
                for (int k = end; k < this.number_of_topics; k++) emission[i][k] = Double.NEGATIVE_INFINITY;
            } else if (sentimentLabel == 1) {
                // negative sentiment in the second half
                start = this.number_of_topics / 2;
                for (int k = 0; k < start; k++) emission[i][k] = Double.NEGATIVE_INFINITY;
            }
        }
        for (int k = start; k < end; k++) {
            for (_SparseFeature w : stn.getFv()) {
                // all in log-space
                emission[i][k] += w.getValue() * topic_term_probabilty[k][w.getIndex()];
            }
        }
    }
}