# -*- coding: utf-8 -*-
# Copyright 2020 Alibaba Group Holding Limited. All Rights Reserved.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from graphscope.framework.app import AppAssets
from graphscope.framework.app import not_compatible_for
__all__ = ["hits"]
def hits(graph, tolerance=0.01, max_round=100, normalized=True):
"""Compute HITS on `graph`.
Hyperlink-Induced Topic Search (HITS; also known as hubs and authorities)
is a link analysis algorithm that rates Web pages. See more here:
graph (:class:`Graph`): A projected simple graph.
tolerance (float, optional): Defaults to 0.01.
max_round (int, optional): Defaults to 100.
normalized (bool, optional): Whether to normalize the result to 0-1. Defaults to True.
:class:`VertexPropertyContext`: A context with each vertex assigned with the HITS value.
.. code:: python
import graphscope as gs
s = gs.session()
g = s.load_from('The parameters for loading a graph...')
pg = g.project_to_simple(v_label='vlabel', e_label='elabel')
r = gs.hits(pg)
tolerance = float(tolerance)
max_round = int(max_round)
normalized = bool(normalized)
return AppAssets(algo="hits")(graph, tolerance, max_round, normalized)