Most of the data is coming from the DBLP Computer Science Bibliography and the rest is coming from CsAuthors.net own database.

We are working hard to keep everything up-to-date. However, we know that there are many papers not yet included in our dataset.

If something is wrong or missing, feel free to write me at  my email address.

The Dijkstra number describes the collaborative distance between an author and Edsger W. Dijkstra.

In our dataset 90.4% of authors are connected to Edsger W. Dijkstra and the average Dijkstra number among them is 5.06.

---

These kind of number/metrics are quite famous and already well defined in other fields.

• The "Erdős number" expresses the collaborative distance with Paul Erdős, the famous Hungarian mathematician.
• The "Bacon number" expresses the co-acting distance with Kevin Bacon.

The Erdős number describes the collaborative distance between an author and Paul Erdős.

In our dataset 90.4% of authors are connected to Paul Erdős and the average Erdős number among them is 4.67.

---

Find more on Wikipedia with an article on the "Erdős number".