今天做作业,要实现整数线性规划的分枝定界法算法.找了一些网上的博客,发现都很屎,感觉自己写的这个比较清楚.规范,所以在此记录.如有错误,请指正. from scipy.optimize import linprog import numpy as np import math import sys from queue import Queue class ILP(): def __init__(self, c, A_ub, b_ub, A_eq, b_eq, bounds): # 全局参数 s
00 前言 branch and cut其实还是和branch and bound脱离不了干系的.所以,在开始本节的学习之前,请大家还是要务必掌握branch and bound算法的原理. 01 应用背景 Branch and cut is a method of combinatorial optimization for solving integer linear programs (ILPs), that is, linear programming (LP) problems whe
Linux 后台运行Python脚本 1.安装Python:(python 3.5.4) 2.安装Python依赖包: 2.1 处理Python更新后yum无法正常使用的问题 (错误信息: -bash: /usr/bin/yum: /usr/bin/python_old2: bad interpreter: No such file or directory) 处理方法:1.查找yum信息 whereis yum 查看yum的安装目录 2.查看Python信息whereis python 查看
Python 安装包去官网自行下载: https://www.python.org/downloads/mac-osx/ Mac os 自带python, 但我记得是python2.7版本 在选择安装包时候避免使用太新的版本. 配置环境: $ vi ~/.bash_profile 增加如下配置 #python Set # Setting PATH for Python 2.7 # The original version is saved in .bash_profile.pysave PATH
http://sepcot.com/blog/2007/04/svn-merge-branch-trunk SVN: Merging a Branch into Trunk This is more for my benefit than anything else, but someone might find this useful. Recently at work, I have taken on more responsibilities. Part of that include
Versions and Features Hadoop has seen significant interest over the past few years. This has led to a proportional uptick in features and bug fixes. Some of these features were so significant or had such a sweeping impact that they were developed on
*本文主要记录和分享学习到的知识,算不上原创 *参考文献见链接 之前,我们有简单提到Cplex中的MIP Callback Interface,包括了Informational callback, query callback以及control callback,个人认为其中control callback的使用效果最为明显,也最经常使用.所以本文主要讲述Cplex的Control callback. 目录 What is Control Callback? How to implement c