John Goodwin's Tumblr


Machine Learning and Cognitive Systems: The Next Evolution of Enterprise Intelligence (Part I) | Innovation Insights |

Graphene: The Next Big (But Thin) Thing

Introduction to: Linked Data Platform -

An introduction to the Linked Data Platform 1.0 from the folks at

Researchers say deep learning can help discover Higgs bosons and other particles

Benford’s Law and the Administrative Geography of Great Britain

Just listened to the latest episode of the Infinite Monkey Cage, and was reminded of Benford’s Law. This states:

Benford’s Law, also called the First-Digit Law, refers to the frequency distribution of digits in many (but not all) real-life sources of data. In this distribution, the number 1 occurs as the leading digit about 30% of the time, while larger numbers occur in that position less frequently: 9 as the first digit less than 5% of the time. Benford’s Law also concerns the expected distribution for digits beyond the first, which approach a uniform distribution.

I was curious if that might emerge in geography (or Ordnance Survey data) somehow. Turns out if we look at the areas (in metres squared) of the polygons in the Boundary Line Product (i.e. the areas of all the counties, wards, consistuencies, districts, parishes etc. in GB) then we get a pretty good fit. In the table below the first column is the leading digit of the polygon area, the second is the percentage of areas starting with that leading digit and the third column is the value Benford’s Law predicts:

1:  30.6      30.1
2:  15.9      17.6
3:  11.3      12.5
4:  9.8        9.7        
5:  8           7.9
6:  7.3        6.7
7:  6.3        5.8
8:  5.6        5.1
9:  4.9        4.6

Jul 9

Forget the Shortest Route Across a City; New Algorithm Finds the Most Beautiful | MIT Technology Review

What is dark matter?

Quick Play with Cayley Graph DB and Ordnance Survey Linked Data

Quick Play with Cayley Graph DB and Ordnance Survey Linked Data

Earlier this month Google announced the release of the open source graph database/triplestore Cayley. This weekend I thought I would have a quick look at it, and try some simple queries using the Ordnance Survey Linked Data.

Cayley is written in Go, so first I had to download and install that. I then downloaded Cayley from here. As an initial experiment I decided to use the Boundary Line Linked…

View On WordPress

What's machine learning? It depends on who you ask

A Very Short History Of The Internet Of Things

Read on