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@stared
stared / live_loss_plot_keras.ipynb
Last active October 8, 2024 00:42
Live loss plot for training models in Keras (see: https://github.com/stared/livelossplot/ for a library)
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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
@baniol
baniol / 03-async-api.md
Last active January 16, 2019 08:35
React/Redux async api requests

React Redux Walkthrough, part 3

Asynchronous API requests

So far, our application gets data from a hardcoded collection passed as a default state to the employees reducer function. However, for most of the web applications data should be loaded asyncronously from a remote server. The goal of this part is to provide this functionality with proper unit tests.

The application source code

switch to the 03-asyn-api branch and run npm install.

# A little Meteor CheatSheet about Iron-Router. (updated on a weekly basis)
# Check our Studio: https://gentlenode.com/
meteor add iron:router
meteor update iron:router
# Iron Router > Configuration
@jed
jed / how-to-set-up-stress-free-ssl-on-os-x.md
Last active February 27, 2025 16:31
How to set up stress-free SSL on an OS X development machine

How to set up stress-free SSL on an OS X development machine

One of the best ways to reduce complexity (read: stress) in web development is to minimize the differences between your development and production environments. After being frustrated by attempts to unify the approach to SSL on my local machine and in production, I searched for a workflow that would make the protocol invisible to me between all environments.

Most workflows make the following compromises:

  • Use HTTPS in production but HTTP locally. This is annoying because it makes the environments inconsistent, and the protocol choices leak up into the stack. For example, your web application needs to understand the underlying protocol when using the secure flag for cookies. If you don't get this right, your HTTP development server won't be able to read the cookies it writes, or worse, your HTTPS production server could pass sensitive cookies over an insecure connection.

  • Use production SSL certificates locally. This is annoying

@dodyg
dodyg / gist:5616605
Last active November 21, 2022 03:05
Kotlin Programming Language Cheat Sheet Part 2

This is a quick guide to Kotlin programming language. The previous part of this guide is here

#Object Oriented

fun main(args : Array<String>) {
  class local (val x : Int)
  
  val y = local(10)
 println("${y.x}")
@catawbasam
catawbasam / pandas_dbms.py
Last active May 26, 2024 05:32
Python PANDAS : load and save Dataframes to sqlite, MySQL, Oracle, Postgres
# -*- coding: utf-8 -*-
"""
LICENSE: BSD (same as pandas)
example use of pandas with oracle mysql postgresql sqlite
- updated 9/18/2012 with better column name handling; couple of bug fixes.
- used ~20 times for various ETL jobs. Mostly MySQL, but some Oracle.
to do:
save/restore index (how to check table existence? just do select count(*)?),
finish odbc,
@williame
williame / debugwin.py
Created June 28, 2012 20:09
can watch variables; opens a window that continuously updates as the variable changes value
import sys, threading, Queue, weakref
try:
import Tkinter
_has_tk = True
_debug_win = None
except ImportError:
# quietly disable ourselves
_has_tk = False