Exemple #1
0
def bimlpa(g_original: object,
           theta: float = 0.3,
           lambd: int = 7) -> BiNodeClustering:
    """
    BiMLPA is designed to detect the many-to-many correspondence community in bipartite networks using multi-label propagation algorithm.


    **Supported Graph Types**

    ========== ======== ======== =========
    Undirected Directed Weighted Bipartite
    ========== ======== ======== =========
    Yes        No       No       Yes
    ========== ======== ======== =========

    :param g_original: a networkx/igraph object
    :param theta: Label weights threshold. Default 0.3.
    :param lambd: The max number of labels. Default 7.
    :return: BiNodeClustering object


    :Example:

    >>> from cdlib import algorithms
    >>> import networkx as nx
    >>> G = nx.algorithms.bipartite.generators.random_graph(100, 20, 0.1)
    >>> coms = algorithms.bimlpa(G)

    :References:

    Taguchi, Hibiki, Tsuyoshi Murata, and Xin Liu. "BiMLPA: Community Detection in Bipartite Networks by Multi-Label Propagation." International Conference on Network Science. Springer, Cham, 2020.

    .. note:: Reference implementation: https://github.com/hbkt/BiMLPA
    """
    from BiMLPA import BiMLPA_SqrtDeg, relabeling, output_community

    g = convert_graph_formats(g_original, nx.Graph)

    if not nx.algorithms.bipartite.is_bipartite(g):
        raise ValueError("The graph is not bipartite")

    bimlpa = BiMLPA_SqrtDeg(g, theta, lambd)
    bimlpa.start()
    relabeling(g)
    top_coms, bottom_coms = output_community(g)

    return BiNodeClustering(
        top_coms,
        bottom_coms,
        g_original,
        "BiMLPA",
        method_parameters={
            "theta": theta,
            "lambd": lambd
        },
    )
Exemple #2
0
def bimlpa(g, theta=0.3, lambd=7):
    """
    BiMLPA is designed to detect the many-to-many correspondence community in bipartite networks using multi-label propagation algorithm.

    :param g: a networkx/igraph object
    :param theta: Label weights threshold. Default 0.3.
    :param lambd: The max number of labels. Default 7.
    :return: BiNodeClustering object


    :Example:

    >>> from cdlib import algorithms
    >>> import networkx as nx
    >>> G = nx.karate_club_graph()
    >>> coms = algorithms.bimlpa(G)

    :References:

    Taguchi, Hibiki, Tsuyoshi Murata, and Xin Liu. "BiMLPA: Community Detection in Bipartite Networks by Multi-Label Propagation." International Conference on Network Science. Springer, Cham, 2020.

    .. note:: Reference implementation: https://github.com/hbkt/BiMLPA
    """
    from BiMLPA import BiMLPA_SqrtDeg, relabeling, output_community

    g = convert_graph_formats(g, nx.Graph)

    bimlpa = BiMLPA_SqrtDeg(g, theta, lambd)
    bimlpa.start()
    relabeling(g)
    top_coms, bottom_coms = output_community(g)

    return BiNodeClustering(top_coms,
                            bottom_coms,
                            g,
                            "BiMLPA",
                            method_parameters={
                                "theta": theta,
                                "lambd": lambd
                            })