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@robinvanemden
robinvanemden / basic_peak_detection.R
Created May 18, 2017 12:28
Basic scripts to import and work with Bobbi data
# ----------- Totem Bobbi basic data analysis in R ------------
# ----------- Based on: https://tinyurl.com/n3tw7lc -----------
library(ggplot2)
library(wavelets)
# ----------------- Load data, set vars ----------------------
# set home directory to this file's directory
setwd("C:\\Users\\robin\\PycharmProjects\\TotemHeartRate")
@robinvanemden
robinvanemden / coding_the_matrix_0_5.py
Last active November 25, 2017 03:35
# -*- coding: utf-8 -*-
"""
Answers to assignments, "Coding the Matrix", by Philip N. Klein, Chapter 0.5
"""
###############################################################################
# 0.5.1 Number of minutes in a week
###############################################################################
print("\n### 0.5.1 ###\n")
@robinvanemden
robinvanemden / Wrk2Optimization.txt
Created October 23, 2017 17:19
Wrk2 client
Provider: Hetzner
Type server: Virtual server single core
OS: Clean Ubuntu-1604-xenial-64-minimal with custom /etc/sysctl.conf *
Wrk2: wrk 4.0.0 [epoll] https://github.com/giltene/wrk2
RAM: 1 GB
Hard Drive: SSD
Connection: 1 Gbit/s NIC
@robinvanemden
robinvanemden / CMAB.py
Created November 16, 2017 23:12 — forked from axlevisu/CMAB.py
A class which solves multi-armed bandit problem
from scipy.stats import beta
from scipy.integrate import quad
from random import randint
import numpy as np
from operator import add
#Contextual Multi-Armed Bandit for Bernoulli Case
class CMAB:
@robinvanemden
robinvanemden / LinUCB.ipynb
Created November 16, 2017 23:12 — forked from tushuhei/LinUCB.ipynb
LinUCB implementation based on Chu, Wei, et al. "Contextual Bandits with Linear Payoff Functions." AISTATS. Vol. 15. 2011.
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@robinvanemden
robinvanemden / linear-thompson-contextual-bandit.py
Created November 16, 2017 23:16 — forked from maxpagels/linear-thompson-contextual-bandit.py
import numpy as np
class ContextualThompson(object):
def __init__(self, d=10, R=0.01, epsilon=0.5, delta=1.0, n_arms=10):
self.n_arms = n_arms
self.d = d
self.R = R
self.delta = delta
self.epsilon = epsilon
@robinvanemden
robinvanemden / bandit.py
Created November 17, 2017 07:52
import random
import time
import matplotlib.pyplot as plt
import numpy as np
from numpy import linalg as la
DIM = 10.0
GRAPH_NUM = 520
@robinvanemden
robinvanemden / couchbase_init.d
Created January 17, 2018 08:22 — forked from avsej/couchbase_init.d
#!/bin/sh
#
# Startup / shutdown script for the couchbase server
#
# Copyright (c) 2011, Couchbase, Inc.
# All rights reserved
#
#
### BEGIN INIT INFO
# Provides: couchbase-server
@robinvanemden
robinvanemden / cb_upgrade.txt
Created January 17, 2018 08:40
Couchbase Sync Gateway and Server - upgrade 1.3.1 to 1.5.1 and 4.5 to 5.0.1
# Update letsencrypt certificate (TODO: make into cronjob)
cp /etc/letsencrypt/live/cb.mnds.org/* /home/sync_gateway
chown -R sync_gateway.sync_gateway *
# Couchbase 4.5 to 5.0
service sync_gateway stop
/etc/init.d/couchbase-server stop
@robinvanemden
robinvanemden / electromagnet_mosfet_arduino.ino
Last active June 28, 2018 12:39
Control electromagnets over Arduino, making use of RFP30N06LE N-Channel MOSFET
/*
Control an electromagnet over Arduino, using an RFP30N06LE N-Channel MOSFET
Developed for Arduino Uno and the MOSFET Power Control Kit, COM-12959
Created 2018
by Robin van Emden
*/