Source code for graphscope.analytical.app.voterank

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright 2020 Alibaba Group Holding Limited. All Rights Reserved.
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# 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
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#     http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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from graphscope.framework.app import AppAssets
from graphscope.framework.app import not_compatible_for
from graphscope.framework.app import project_to_simple

__all__ = ["voterank"]


[docs]@project_to_simple @not_compatible_for("arrow_property", "dynamic_property") def voterank(graph, num_of_nodes=0): """Evaluate VoteRank on a graph. Args: graph (:class:`graphscope.Graph`): A simple graph. num_of_nodes (unsigned long int, optional): Number of ranked nodes to extract. Default all nodes. Returns: :class:`graphscope.framework.context.VertexDataContextDAGNode`: A context with each vertex assigned with the voterank value, evaluated in eager mode. Examples: .. code:: python >>> import graphscope >>> from graphscope.dataset import load_p2p_network >>> sess = graphscope.session(cluster_type="hosts", mode="eager") >>> g = load_p2p_network(sess) >>> # project to a simple graph (if needed) >>> pg = g.project(vertices={"host": ["id"]}, edges={"connect": ["dist"]}) >>> c = graphscope.voterank(pg, num_of_nodes=10) >>> sess.close() """ num_of_nodes = int(num_of_nodes) return AppAssets(algo="voterank", context="vertex_data")(graph, num_of_nodes)