list_generator.py 文件源码

def cal_hist(self, t1, t2, data1_maxlen, hist_size):
        mhist = np.zeros((data1_maxlen, hist_size), dtype=np.float32)
        t1_cont = list(self.data1[t1])
        t2_cont = list(self.data2[t2])
        d1len = len(t1_cont)
        if self.use_hist_feats:
            assert (t1, t2) in self.hist_feats
            caled_hist = np.reshape(self.hist_feats[(t1, t2)], (d1len, hist_size))
            if d1len < data1_maxlen:
                mhist[:d1len, :] = caled_hist[:, :]
            else:
                mhist[:, :] = caled_hist[:data1_maxlen, :]
        else:
            t1_rep = self.embed[t1_cont]
            t2_rep = self.embed[t2_cont]
            mm = t1_rep.dot(np.transpose(t2_rep))
            for (i,j), v in np.ndenumerate(mm):
                if i >= data1_maxlen:
                    break
                vid = int((v + 1.) / 2. * ( hist_size - 1.))
                mhist[i][vid] += 1.
            mhist += 1.
            mhist = np.log10(mhist)
        return mhist