Source code for graphscope.analytical.app.pagerank

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
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# 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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from graphscope.framework.app import AppAssets
from graphscope.framework.app import not_compatible_for

__all__ = ["pagerank"]


[docs]@not_compatible_for("arrow_property", "dynamic_property") def pagerank(graph, delta=0.85, max_round=10): """Evalute PageRank on a graph. Args: graph (Graph): A projected simple graph. delta (float, optional): Dumping factor. Defaults to 0.85. max_round (int, optional): Maximum number of rounds. Defaults to 10. Returns: :class:`VertexDataContext`: A context with each vertex assigned with the pagerank value. Examples: .. 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.k_core(pg, delta=0.85, max_round=10) s.close() """ delta = float(delta) max_round = int(max_round) return AppAssets(algo="pagerank")(graph, delta, max_round)