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@karpathy
karpathy / pg-pong.py
Created May 30, 2016 22:50
Training a Neural Network ATARI Pong agent with Policy Gradients from raw pixels
""" Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """
import numpy as np
import cPickle as pickle
import gym
# hyperparameters
H = 200 # number of hidden layer neurons
batch_size = 10 # every how many episodes to do a param update?
learning_rate = 1e-4
gamma = 0.99 # discount factor for reward
@karpathy
karpathy / min-char-rnn.py
Last active October 3, 2024 11:59
Minimal character-level language model with a Vanilla Recurrent Neural Network, in Python/numpy
"""
Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
BSD License
"""
import numpy as np
# data I/O
data = open('input.txt', 'r').read() # should be simple plain text file
chars = list(set(data))
data_size, vocab_size = len(data), len(chars)
@molobrakos
molobrakos / gist:ff1620ce6031c99f120b
Last active January 31, 2018 10:46
using duplicity with hubic to backup home directory on ubuntu linux
# preparations
# ------------
# create a new application in hubic account manager
# visit https://hubic.com/home/browser/account/
# Developers > Add an application
# Name: backup
# Redirection domain: http://localhost/
# copy "Client ID" and "Secret Client", it will be used later
sudo apt-get install librsync-dev libffi-dev python-virtualenv python-swiftclient
@gdamjan
gdamjan / README.md
Last active August 6, 2024 04:10
Setup for an easy to use, simple reverse http tunnels with nginx and ssh. It's that simple there's no authentication at all. The end result, a single ssh command invocation gives you a public url for your web app hosted on your laptop.

What

A lot of times you are developing a web application on your own laptop or home computer and would like to demo it to the public. Most of those times you are behind a router/firewall and you don't have a public IP address. Instead of configuring routers (often not possible), this solution gives you a public URL that's reverse tunnelled via ssh to your laptop.

Because of the relaxation of the sshd setup, it's best used on a dedicated virtual machine just for this (an Amazon micro instance for example).

Requirements