Eq.py 文件源码

def _Eq6(_lambda,K,_x_u,m_pre_c,user_comment,_comment_2_user_matrix,shot_comments_vector,_n_t_c):

        #traverse all users
        total=[]
        for index,key in enumerate(user_comment):
            temp=np.zeros(K)
            for comment in user_comment[key]:
                i,j=comment[0],comment[1]
                shared_term=_x_u[index]*_lambda[i]+m_pre_c[i][j]
                temp+=_lambda[i]*dlgt(shared_term)\
                *(digamma(np.sum(lgt(shared_term))\
                -digamma(np.sum(lgt(shared_term))+np.sum(shot_comments_vector[i][j]))
                +digamma(lgt(shared_term)+_n_t_c[i][j])\
                -digamma(lgt(shared_term))))
            total.append(-1*_x_u[index] +temp)
        return np.array(total)