jonnyli1125 / tictactoe.py

Last active November 30, 2024 06:31

Self-play Reinforcement Learning (Q-Learning) for Tic Tac Toe in 100 lines of code

	import argparse
	import random
	from collections import defaultdict

	import numpy as np
	from tqdm import tqdm

	BOARD_SIZE = 3

jonnyli1125 / neural_network_from_scratch.ipynb

Last active July 22, 2024 00:39

neural_network_from_scratch.ipynb

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jonnyli1125 / rnn_transducer.py

Last active October 9, 2023 17:56

RNN Transducer in ~100 lines of NumPy code. Paper: https://arxiv.org/abs/1211.3711

	from dataclasses import dataclass
	import numpy as np

	vocab = [None, 'a', 'b', 'c']
	null_idx = 0
	V = len(vocab)

	@dataclass
	class LSTMWeights:
	xi: list[list[float]] # (V-1, V)

jonnyli1125 / .spark-cluster.md

Last active September 16, 2023 20:28

One node Hadoop, Spark, Livy cluster setup with Docker compose that uses the official images for apache/hadoop and apache/spark.

One-node Spark cluster

This is a Docker compose definition of a Hadoop + Spark + Livy cluster with one node only. You can use it for development or testing purposes.

Example usage:

docker compose build
docker compose up -d

docker exec -it  /bin/bash

jonnyli1125 / preprocess_lang8.py

Last active October 20, 2021 02:04

Preprocessing script for Japanese entries in NAIST Lang8 Corpus

	import os
	import argparse
	import json
	import re
	import unicodedata


	invalid_bytes_re = re.compile(r'[\x00-\x1F]+')
	sline_re = re.compile(r'\[sline\].*?\[/sline\]')
	color_tags = ['[f-blue]','[/f-blue]',

jonnyli1125 / stockfish_selfplay.py

Created June 21, 2021 04:23

Stockfish self-play game generation script

	import argparse

	import chess
	import chess.engine
	import chess.pgn


	def main(stockfish_path, output_path):
	engine = chess.engine.SimpleEngine.popen_uci(stockfish_path)

jonnyli1125 / weighted_sparse_categorical_crossentropy.py

Last active June 11, 2024 08:33

SparseCategoricalCrossentropy with class weights for Keras/Tensorflow 2

	"""
	Since Model.fit doesn't support class_weight when using multiple outputs,
	this custom loss subclass may be useful.

	Relevant issues:
	https://github.com/keras-team/keras/issues/11735
	https://github.com/tensorflow/tensorflow/issues/40457
	https://github.com/tensorflow/tensorflow/issues/41448
	"""

jonnyli1125 / custom.css

Last active June 19, 2020 04:50

japanese font solution for discord with betterdiscord custom css

	div>*:not(code) {
	/* using the default discord theme's fonts */
	font-family:
	Whitney,
	'Helvetica Neue',
	Helvetica,
	Arial,
	'Meiryo', /* you can change this to whatever japanese font you prefer */
	sans-serif !important;
	}

jonnyli1125 / jonnyeclipse.epf

Last active December 14, 2015 03:48

My Eclipse color theme.

	file_export_version=3.0
	/instance/org.codehaus.groovy.eclipse.ui/groovy.editor.groovyDoc.keyword.enabled=true
	/instance/org.codehaus.groovy.eclipse.ui/groovy.editor.groovyDoc.link.enabled=true
	/instance/org.codehaus.groovy.eclipse.ui/groovy.editor.groovyDoc.tag.enabled=true
	/instance/org.eclipse.ui.editors/AbstractTextEditor.Color.SelectionForeground.SystemDefault=false
	/instance/org.eclipse.ui.editors/AbstractTextEditor.Color.SelectionBackground.SystemDefault=false
	/instance/org.eclipse.ui.editors/AbstractTextEditor.Color.Background.SystemDefault=false
	/instance/org.eclipse.ui.editors/AbstractTextEditor.Color.Foreground.SystemDefault=false
	/instance/org.epic.perleditor/AbstractTextEditor.Color.Background.SystemDefault=false
	/instance/org.epic.perleditor/AbstractTextEditor.Color.Foreground.SystemDefault=false

jonnyli1125 / BinarySearch.cs

Last active December 12, 2015 01:18

A little test of using a binary search algorithm to find indexes of values in a sorted list. Also just a little comparison between binary and linear/sequential searching.

	using System;
	using System.Collections.Generic;

	namespace BinarySearch
	{
	class Program
	{
	static void Main(string[] args)
	{
	List<int> list = new List<int>() { 5, 8, 900, 1, 22, 52, 567, 666, 123, 256, 765, 0, 500 }; // example list

Jonny Li jonnyli1125

One-node Spark cluster