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Panagiotis Tigas ptigas

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def sample_gumbel(shape, eps=1e-20):
"""Sample from Gumbel(0, 1)"""
U = tf.random_uniform(shape,minval=0,maxval=1)
return -tf.log(-tf.log(U + eps) + eps)
def gumbel_softmax_sample(logits, temperature):
""" Draw a sample from the Gumbel-Softmax distribution"""
y = logits + sample_gumbel(tf.shape(logits))
return tf.nn.softmax( y / temperature)
@njbbaer
njbbaer / ca.py
Last active October 27, 2022 18:05
Fast implementation of cellular automata using 2D convolution
import time
import numpy as np
from numpy.fft import fft2, ifft2
from matplotlib import pyplot, animation
def fft_convolve2d(board, kernal):
board_ft = fft2(board)
kernal_ft = fft2(kernal)
height, width = board_ft.shape
@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
@FrancesCoronel
FrancesCoronel / sampleREADME.md
Last active February 10, 2025 02:48
A sample README for all your GitHub projects.

Repository Title Goes Here

Frances Coronel

INSERT GRAPHIC HERE (include hyperlink in image)

Subtitle or Short Description Goes Here

ideally one sentence >

@karpathy
karpathy / min-char-rnn.py
Last active May 8, 2025 09:24
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)
@barosl
barosl / add.c
Created July 26, 2015 07:26
Function overloading in C
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int addi(int a, int b) {
return a + b;
}
char *adds(char *a, char *b) {
char *res = malloc(strlen(a) + strlen(b) + 1);
@paulirish
paulirish / bling.js
Last active May 5, 2025 12:44
bling dot js
/* bling.js */
window.$ = document.querySelector.bind(document);
window.$$ = document.querySelectorAll.bind(document);
Node.prototype.on = window.on = function(name, fn) { this.addEventListener(name, fn); };
NodeList.prototype.__proto__ = Array.prototype;
NodeList.prototype.on = function(name, fn) { this.forEach((elem) => elem.on(name, fn)); };
@james2doyle
james2doyle / curl-smtp-email.sh
Last active September 15, 2023 17:21
Send SMTP email using cURL
curl --connect-timeout 15 -v --insecure "smtp://smtp.example.com:25" -u "username:password"
\ --mail-from "[email protected]" --mail-rcpt "[email protected]"
\ -T email-contents.txt --ssl
@hdragomir
hdragomir / sm-annotated.html
Last active February 2, 2025 02:22
The deferred font loading logic for Smashing Magazine. http://www.smashingmagazine.com/
<script type="text/javascript">
(function () {
"use strict";
// once cached, the css file is stored on the client forever unless
// the URL below is changed. Any change will invalidate the cache
var css_href = './index_files/web-fonts.css';
// a simple event handler wrapper
function on(el, ev, callback) {
if (el.addEventListener) {
el.addEventListener(ev, callback, false);