Light fm cold start problem

def cold_start_similar_items(feat_idxs, item_feat_mtx, model, N=10:
    feat_mat = scipy.sparse.coo_matrix((np.ones_like(feat_idxs),
                                       (feat_idxs, np.zeros_like(feat_idxs))))
    repr, bias = model.item_embeddings(feat_mat)
    scores = item_representation.dot(repr[0].T)
   
    # snip

Source: github.com

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