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@n1try
n1try / deezer2json.js
Last active Mar 24, 2018
Export Deezer playlist to JSON
View deezer2json.js
/*
1. Go to Deezer.com and open the playlist you want to export, e.g. https://www.deezer.com/en/profile/850026602/loved
2. Scroll down to the very bottom
3. Open your browser's dev tools (F12 on Linux an Windows) and go to the Console tab
4. Paste the following one-line command and hit enter
*/
JSON.stringify(Array.prototype.slice.call(document.getElementsByClassName('datagrid-row song')).map(r => Object.assign({}, {title: r.getElementsByClassName('title')[0].childNodes[0].textContent, artist: Array.prototype.slice.call(r.querySelectorAll('[itemprop="byArtist"]')).map(a => a.textContent).reduce((acc, a) => a + ', ' + acc, '').slice(0, -2)})), null, 2)
@n1try
n1try / apriori.py
Last active Feb 14, 2018
Naive implementation of the Apriori algorithm in Python
View apriori.py
# Naive implementation of the Apriori algorithm in Python
# Example 2 from https://en.wikipedia.org/wiki/Apriori_algorithm
data = [
{1,2,3,4},
{1,2,4},
{1,2},
{2,3,4},
{2,3},
{3,4},
@n1try
n1try / tripadvisor_scraper.py
Last active Jul 27, 2019
A scraper for restaurant reviews from Tripadvisor
View tripadvisor_scraper.py
'''
A script to scrape restaurant reviews from tripadvisor.com or tripadvisor.de using Selenium.
Author: Ferdinand Mütsch <mail@ferdinand-muetsch.de>
License: MIT
Updated: January, 09 2018
Installation:
- Install `selenium` and `pandas` using pip
- Install PhantomJS or get Chrome- or Firefox webdriver binaries and add them to your PATH (see http://selenium-python.readthedocs.io/installation.html#drivers)
@n1try
n1try / wsgi.py
Last active Nov 8, 2017
Sample WSGI web server with Flask
View wsgi.py
# gunicorn --bind 0.0.0.0:8000 --workers 4 wsgi:app
# gunicorn --bind 0.0.0.0:8000 --workers 1 --threads 12 wsgi:app
import time
from flask import Flask
app = Flask(__name__)
# Requests from one client are not blocked by long-lasting requests from another client, as long as there are workers available
@app.route('/sleep')
@n1try
n1try / zar-watcher.py
Created Oct 3, 2017
Watch for exam results announcement and notify via telegram-middleman-bot (run as Cronjob)
View zar-watcher.py
import requests
import os
url = 'http://www.zar.kit.edu/rss/feed.rss'
keywords = ['steuerrecht']
cache_file = 'cache.txt'
hook_url = 'http://middleman.ferdinand-muetsch.de/api/messages'
hook_sender_id = 'Watcher'
hook_recipient_id = ''
View dqn_cartpole.py
# Inspired by https://keon.io/deep-q-learning/
import random
import gym
import math
import numpy as np
from collections import deque
from keras.models import Sequential
from keras.layers import Dense
from keras.optimizers import Adam
View qcartpole_gridsearch.py
import time
import multiprocessing
import numpy as np
from sklearn.model_selection import ParameterGrid
import qcartpole
N_RUNS = 10
grid_params = {
View qcartpole.py
# Inspired by https://medium.com/@tuzzer/cart-pole-balancing-with-q-learning-b54c6068d947
import gym
import numpy as np
import math
from collections import deque
class QCartPoleSolver():
def __init__(self, buckets=(1, 1, 6, 12,), n_episodes=1000, n_win_ticks=195, min_alpha=0.1, min_epsilon=0.1, gamma=1.0, ada_divisor=25, max_env_steps=None, quiet=False, monitor=False):
self.buckets = buckets # down-scaling feature space to discrete range
@n1try
n1try / matmult.go
Last active Dec 4, 2018
Simple Matrix multiplication and transpostion with Go (https://play.golang.org/p/QyXf-mEDUq)
View matmult.go
/* Simple Matrix multiplication and transpostion with Go */
package main
import (
"fmt"
"errors"
)
func transpose(x [][]float32) [][]float32 {
@n1try
n1try / simple_nn.go
Last active Aug 24, 2017
Simple Neural Network in Go
View simple_nn.go
/* Simple neural net with one hidden layer consisting of one neuron */
/* Inspired by https://medium.com/technology-invention-and-more/how-to-build-a-simple-neural-network-in-9-lines-of-python-code-cc8f23647ca1 */
package main
import (
"fmt"
"math/rand"
"math"
)
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