Timeline – explore temporal distribution of entities

Sometimes, in order to explore a topic, we need to look at its development over time.  How did technologies or key players (e.g. people or companies) evolve over time?  Are there any recent developments or general trends?

Our timeline view shows detailed temporal distributions of different entities.  You can easily see how a topic and associated things like companies, organizations, materials, and technologies have evolved over time.

The timeline example below shows the number of hits for telehealth or telemedicine.  The red bars show the numbers of hits per month, and the green bars show the relative importance of each entity (companies in the example below).  To be precise, the green bars show the share of documents in a given month that relate to each entity (i.e. each row).  This way you can see both the raw number of hits (red bars) and the shares (green bars), which control for effects such as overall increasing numbers of documents.


From this chart, we can see that some companies were active quite early (e.g. Google or Jawbone), whereas other companies appear later in our topic of interest (e.g. Medtronic or Walgreens).  It may be surprising that initial developments in telehealth technologies apparently did not come from established healthcare solutions providers like GE, Medtronic or Philips but players like Google or Jawbone.

Considering the overall number of hits per month, we see an overall increase.

If you want to zoom in deeper, you could focus on specific data repositories by using the repository dropdown selector (cf. red arrow in the screenshot below).


This time, we chose disease as entity type and limited our repositories to Scientific Publications and Funded Research Projects.  If you move your cursor above a bar in the chart, you can see the number of hits and the share of the related entity and time bin.  By clicking on the bar, you can go directly to the underlying documents.