Mayur Bhangale mayurbhangale

My implementation of the Gale/Shapley algorithm in Python. This algorithm is designed to address the Stable Marriage Problem.

Compare this recursive variant with the implementations on Rosetta Code.

Problem description

Given an equal number of men and women to be paired for marriage, each man ranks all the women in order of his preference and each women ranks all the men in order of her preference.

A stable set of engagements for marriage is one where no man prefers a women over the one he is engaged to, where that other woman also prefers that man over the one she is engaged to. I.e. with consulting marriages, there would be no reason for the engagements between the people to change.

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

Neo4j directed path through multiple relationships with property filter

From Stackoverflow Question

Being new to Cypher and Neo4j, I am having trouble constructing my query for my use-case. I am building a simple ACL (access control list) and am looking for a path through permission relationships an up a hierarchy as well. A picture may better explain it:

Key:

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)

About

I recently relocated for new employment. I've been staying in an extended stay hotel for about 3 weeks now. The hotel I'm staying in gives its guests free Wifi access. However, it requires users to accept terms and conditions on a splash page via browser interface before they can use the network. This makes it difficult to use my Chromecast with the network, as it doesn't have a means of accessing that splash page. While I could call the IT help line, I decided to explore a work-around.

Like many networks, my hotel's network attempts to improve security by using MAC address filtering. Luckily, Mac OS X (10.4 - 10.10) makes it very easy to spoof your network card's MAC address.

Here's how to add a devices like Chromecast, AppleTV, Roku to a wireless network that requires a browser to authenticate and accept terms and conditions.

	"""
	Implementation of pairwise ranking using scikit-learn LinearSVC

	Reference:

	"Large Margin Rank Boundaries for Ordinal Regression", R. Herbrich,
	T. Graepel, K. Obermayer 1999

	"Learning to rank from medical imaging data." Pedregosa, Fabian, et al.,
	Machine Learning in Medical Imaging 2012.

	#!/bin/bash

	LOADING=false

	usage()
	{
	cat << EOF
	usage: $0 [options] dbname

	OPTIONS:

	0-mail.com
	0815.ru
	0clickemail.com
	0wnd.net
	0wnd.org
	10minutemail.com
	20minutemail.com
	2prong.com
	30minutemail.com
	3d-painting.com

	#!/bin/bash

	# https://cloud.google.com/compute/docs/faq#find_ip_range
	# nslookup -q=TXT _cloud-netblocks.googleusercontent.com 8.8.8.8

	myarray=()
	for LINE in `dig txt _cloud-netblocks.googleusercontent.com +short \| tr " " "\n" \| grep include \| cut -f 2 -d :`
	do
	myarray+=($LINE)
	for LINE2 in `dig txt $LINE +short \| tr " " "\n" \| grep include \| cut -f 2 -d :`

	#!/usr/bin/env python

	try:
	# For Python 3.0 and later
	from urllib.request import urlopen
	except ImportError:
	# Fall back to Python 2's urllib2
	from urllib2 import urlopen

	import json