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A Python library for Network Influence Maximization

Project description

PyNetIM

PyNetIM 是一个用于社交网络中影响力最大化的 Python 库,实现了多种经典算法和扩散模型。

功能特点

  • 实现了多种影响力最大化算法
  • 支持独立级联(IC)和线性阈值(LT)扩散模型,可以自定义扩展(继承BaseDiffusionModel)
  • 提供图结构封装和边权重设置工具
  • 支持单进程和多进程模式
  • 包含算法性能计时器装饰器

算法实现

启发式算法

模拟算法

反向影响采样算法

扩散模型

核心组件

图结构

  • IMGraph: 影响力最大化图类,封装NetworkX图对象

工具函数

安装

pip install pynetim

快速开始

import networkx as nx
from pynetim import IMGraph, IndependentCascadeModel
from pynetim.algorithms import DegreeDiscountAlgorithm

# 创建图对象
g = nx.erdos_renyi_graph(100, 0.1)
# 入度分之一作为权重
graph = IMGraph(g, edge_weight_type='WC')

# 使用算法
algorithm = DegreeDiscountAlgorithm(graph)
seeds = algorithm.run(k=10)

项目结构

pynetim/
├── algorithms/         # 算法实现
├── diffusion_model/    # 扩散模型
├── graph/             # 图结构封装
├── utils/             # 工具函数
├── decorator/         # 装饰器
└── __init__.py        # 包初始化文件

许可证

LICENSE

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