Social Graph of the Royal Navy in WW1
As we said in our recent blog post, Old Weather has been churning through Royal Navy logbooks from World War 1 for long enough now that we can start to extract some interesting stats from the words transcribed by the community.
Social networks are all the rage now, but here at Zooniverse HQ we’ve been wondering what the 90-year-old social graph of Old Weather would look like. We’ll have more to say in the near future about the interactions of people on board the Royal Navy ships from our logs, but what about the ships themselves? When ships pass each other at sea, or meet to exchange supplies, officers and information, they make a note of this in their logs.
This enormous chart shows all of the Old Weather ships in a big grid, highlighting in purple where ships connect to each other. You can look down the chart, or across it, to find the interactions for a given ship. You can see that the HMS Arlanza and the Alsation seem to meet up with quite a few of the other ships of the chart. Both are Armed Merchant Cruisers that cross the busy stretch between the UK and the USA. So is the HMS Motugua, and it too has a fair few interactions with other vessels.
Taking those ships that are often mentioned, we can delve further into their interactions and create arc plots for those vessels. The arc plot below, for the HMS Alsatian, shows that it has encountered 26 ships in the transcriptions made to date. The thickness of the lines connecting vessels indicates the relative number of times that the two ships reference each other. The HMS Moldavia and HMS Patia are fairly well-connected with the Alsatian.
What isn’t shown on the large network plot is that the most mentioned vessel in the Old Weather fleet is the HMS Bee, a river gunboat and a ship that is only 36% complete so far on Old Weather (maybe you could jump aboard and help to complete it?). This ship is not mentioned a great deal by every ship but rather features regularly in the logs of a few vessel in the fleet. The arc plot for the HMS Bee is shown below. The HMS Bee interacts a great deal with the HMS Scarab and the HMS Cricket. all three are gunboats, as is the HMS Gnat. The next step here is to examine the logs and find out when these vessels interacted so much, and why. A blog post of these at a later time.
Finally, for this post, let’s look at the arc plot for the top twenty most-connected vessels in Old Weather so far. These are the ships from the large network plot that connect with the most other ships. These plots can be made for the whole fleet – but they become very large and complex and thus difficult to take value from. This slimmed-down version showing just the top twenty gives you an idea of the ships that are linked to other ships.
This is the kind of simplistic data that can be extracted from your transcriptions of events. So far, only the development team have been looking at this, but the tools are being made available to the historians of Old Weather for further analysis. I’m excited by what they can uncover.
Many of the ships listed in these charts are available on our Old Weather Voyages page, so you can see for yourselves how they interact with each other. You can use that page to read the log entries and see where ships were when they encountered one another. We’re always trying to find new ways for everyone to explore the Old Weather data and if you have any suggestions we’d love to hear them, either here on the blog or via twitter @oldweather.