mcclure

"POOR BILL"
2019-Nov-07

@teddyschleifer wrote:

"Bill Gates on a wealth tax:

'I've paid over $10 billion in taxes. I've paid more than anyone in taxes. If I had to pay $20 billion, it's fine.'

'But when you say I should pay $100 billion, then I'm starting to do a little math over what I have left over.'"

joepie91

You don't need a blockchain.

If you're reading this, you probably suggested to somebody that a particular technical problem could be solved with a blockchain.

Blockchains aren't a desirable thing; they're defined by having trustless consensus, which necessarily has to involve some form of costly signaling to work; that's what prevents attacks like sybil attacks.

In other words: blockchains must be expensive to operate, to work effectively. This makes it a last-resort solution, when you truly have no other options available for solving your problem; in almost every case you want a cheaper and less complex solution than a blockchain.

In particular, if your usecase is commercial, then you do not need or want trustless consensus. This especially includes usecases like supply chain tracking, ticketing, and so on. The whole *p

bsletten

This is an incomplete, ever-changing curated list of content to assist people into the worlds of Data Science and Machine Learning. If you have a recommendation for something to add, please let me know. If something isn't here, it doesn't mean I don't recommend it, I just may not have had a chance to review it yet or not.

I will generally list things in order of easier to more formal/challenging content.

It may feel like there is an overwhelming amount of stuff for you to learn (because there is). But, there is a guided path that will get you there in time. You need to focus on Linear Algebra, Calculus, Statistics and probably Python (or R). Your best bet is to get a Safari Books Online account (https://www.safaribooksonline.com) which you may already have access to through school or work. If not, it is a reasonable way to get access to a tremendous number of books and videos.

I'm not saying you will get what you need out of everything here, but I have read/watched at least some of all of the following an

jaradc

import numpy as np
from scipy.stats import entropy
from math import log, e
import pandas as pd

import timeit

def entropy1(labels, base=None):
  value,counts = np.unique(labels, return_counts=True)
  return entropy(counts, base=base)

hexerei

<h1>Usage Template</h1>

<h2>With integer to decimal conversion</h2>
<p>
{% include numf.html number=12345 %}                    <!-- output is 12.345,00    --><br />
{% include numf.html number=12345 decimals=0 %}         <!-- output is 12.345       --><br />
{% include numf.html number=12345 decimals=4 %}         <!-- output is 12.345.0000  --><br />
{% include numf.html number=12345 ds='.' ts=',' %}      <!-- output is 12,345.00    --><br />
</p>

ageis

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict

n8fr8

#!/usr/bin/env sh

if [ "$1" != "" ]; then

	sBatchList=""
	sBatchMessage="$3"

	while IFS=, read col1 col2
	do
		sBatchList="$sBatchList $col1"

johnteske

{% include numberWithCommas.html number=1 %}
{% include numberWithCommas.html number=12 %}
{% include numberWithCommas.html number=123 %}
{% include numberWithCommas.html number=1234 %}
{% include numberWithCommas.html number=12345 %}
{% include numberWithCommas.html number=123456 %}
{% include numberWithCommas.html number=1234567 %}
{% include numberWithCommas.html number=12345678 %}
{% include numberWithCommas.html number=123456789 %}
{% include numberWithCommas.html number=1234567890 %}

Jimilian

#!/bin/bash

# Example:
# > echo "key1 value1 key2 value2" | ./key_value_pipe_to_json.sh 
# {'key1': value1, 'key2': value2}

arr=();

while read x y; 
do 

thequux

#!/bin/sed -rf
# How to run:
#   echo 'A A<1+B1-C>B<1-A1+B>D<1-B1qC> 0<0>0'
# Note: Your local sed may use a different flag for "extended" regexes; this is written for GNU sed.
#
# tape: [active-state] " " (state-name "<" (write move next-state)_0 (write move next-state)_1 ">")* " " tape... "<" curpos ">" tape...
# State names can be any character not in " <>".
# The tape consists of 0's and 1's.
# The "move" field can be "-" to move left, "+" to move right, or "q" to halt.