Visualizing US census data over the past 230 years!

2020 is a special year for all Americans — it is the year of the US Census. The US census is one of the biggest population surveys in the world and is mandated by the US constitution. It takes place every ten years and helps the government decide where to build and maintain schools, hospitals, transportation infrastructure, and police departments to name just a few. All in all, the various censuses determine the allocation of over $400 billion in federal funds every year.

To celebrate this occasion, I collected 230 years of US census data and turned them into…


Why noise in machine learning is nothing but bias

In this post, we explain how bias and noise in machine learning are two sides of the same coin.

God does not play dice. — Albert Einstein

Einstein famously gave this statement in reaction to the emerging theory of quantum mechanics, which seemed to defeat the fundamental laws of physics. Read on to see how the same goes for the fundamental laws of machine learning.

The Classical Bias-Variance-Noise Tradeoff

Before getting into it, let’s briefly review the classical bias-variance-noise tradeoff. …


Understanding the Bias-Variance tradeoff at three different levels: simple, intermediate and advanced.

In this post, we explain the bias-variance tradeoff in machine learning at three different levels: simple, intermediate and advanced. We will follow up with some illustrative examples and discuss some practical implications in the end.

If you can’t explain it simply, you don’t understand it well enough. — Albert Einstein

Understanding the bias-variance tradeoff can be a bit tricky at first as it involves several quantities that are never available in practice. Nonetheless, it provides insights into best practices for optimizing real-world machine learning applications.

Simple

The prediction error of a machine learning model, that is the difference between the ground…


This comprehensive and easy three-step tutorial lets you train your own custom object detector using YOLOv3. The only requirement is basic familiarity with Python.

Our input data set are images of cats (without annotations).

As an example, we learn how to detect faces of cats in cat pictures. Given the omnipresence of cat images on the internet, this is clearly a long-awaited and extremely important feature! But even if you don’t care about cats, by following these exact same steps, you will be able to build a YOLO v3 object detection algorithm for your own use case.

Training Data

If you already have an image dataset, you are good to go and…


Crypto is back and Bitcoin leads the way!

Slowly but steadily, crypto climbed back towards its old records. Even though prices are still well below the Jan 2018 crypto bubble hype, Q2/19 trading volumes are three times as high as Q1/18!

Apart from record trading activity, by crunching numbers of 184 digital asset exchanges we identified the following global trends:

  • Q2/2019 best quarter for crypto investors since 2017,
  • Bitcoin outperforms smaller cryptocurrencies,
  • USA’s global market share continues to rise while Korean trading activity slows down,
  • Global trading is becoming more diverse and shows less concentration on just a few exchanges.

An All Winner Quarter


After 2017’s Crypto-Optimism and 2018’s Crypto-Pessism, it is time for Crypto-Realism.

After a year of lower and lower prices, crypto has made its long-awaited come-back. In Q1/19, both trading volumes and overall digital asset prices increased and show a strong upward trend. Most notably, prices of four of the Top 10 most traded digital assets increased by more 25% — gains which haven’t been seen since 2017.

Crunching numbers of 192 digital asset exchanges worldwide led to the following key findings:

  • Q1/2019 best quarter for crypto since 2017,
  • USA’s global market share increased for the first time since 2017 but…


When Moon and when Lambo? Not in 2018!

To put it short — 2018 left a lot to be desired. Any planned trip to the moon had to be canceled and the drive back from the airfield was in an Uber. When the hype train of 2017 came to a standstill many investors felt that crypto is over. But is that really true?

To find out we crunched numbers of 178 digital asset exchanges* worldwide and arrived at the following key findings:

  • US’s global market share dropped from 50% in Q2/17 to 7% in Q4/18,
  • Asia now responsible for 81%…


Last week’s contentious Bitcoin Cash hard fork was the likely reason for one of the biggest sell-offs in the cryptocurrency market in the past year. In this short article, we recap what happened and where we are right now.

What is A Hard Fork?

In simple terms, a hard fork of a digital asset network happens whenever the underlying protocol is changed in a way that makes it incompatible with the existing protocol. In this case, any miner that runs the original software will no longer accept blocks created by miners running the “updated” mining software and vice versa. …


Infographic comparing weekly volatility of classical and digital asset markets since 01/01/2017.
Cover Photo


The wait continues ….

To put it short — Q3 left a lot to be desired. Both trading volumes and digital asset prices continued their 2018 downward trend. Overall, trading volumes are now only half as high as in Q1. Nonetheless, they are still almost twice as high as in Q3/2017.

Crunching numbers of 159 digital asset exchanges* worldwide led to the following key findings:

  • Altcoin prices decreased significantly while Bitcoin saw a small gain of +4%,
  • Global trading volumes dropped by 20% from Q2 to Q3; trading in the US is down by over 40%,
  • ETH saw the sharpest…

Anton Muehlemann

Deep Learning Magic

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