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@deanmark
deanmark / tensordot_pytorch.py
Created June 12, 2018 10:59
tensordot in pytorch
def tensordot_pytorch(a, b, axes=2):
# code adapted from numpy
try:
iter(axes)
except Exception:
axes_a = list(range(-axes, 0))
axes_b = list(range(0, axes))
else:
axes_a, axes_b = axes
try:
@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
@obfusk
obfusk / break.py
Last active May 1, 2024 20:32
python "breakpoint" (more or less equivalent to ruby's binding.pry); for a proper debugger, use https://docs.python.org/3/library/pdb.html
import code; code.interact(local=dict(globals(), **locals()))
@tylerneylon
tylerneylon / copy.lua
Last active May 18, 2024 16:41
How to deep copy Lua values.
-- copy.lua
--
-- Lua functions of varying complexity to deep copy tables.
--
-- 1. The Problem.
--
-- Here's an example to see why deep copies are useful. Let's
-- say function f receives a table parameter t, and it wants to
@kinopyo
kinopyo / nokogiri_https.rb
Created June 21, 2011 08:58
nokogiri parse https url
require 'net/https'
require 'nokogiri'
url = "https://example.com"
url = URI.parse( url )
http = Net::HTTP.new( url.host, url.port )
http.use_ssl = true if url.port == 443
http.verify_mode = OpenSSL::SSL::VERIFY_NONE if url.port == 443
path = url.path
path += "?" + url.query unless url.query.nil?