Github Dating Simulator college pupil, finding love may be difficult. Similarly, findi

As being a highschool pupil, finding love may be difficult. Likewise, finding individuals ready to invest their week-end teaming up beside me at a hackathon may be hard as well.

At hackCooper 2016, we caused Isabella Berry to fix both of these issues with Github Dating Simulator, a credit card applicatoin that analyzes compatibility between Github users by making use of graph concept plus the power of love. It is maybe perhaps not really a dating simulator within the old-fashioned sense—rather, it is an internet application which allows individuals in search of hackathon teams to get individuals with comparable coding backgrounds to prevent the hassle of scrambling to get a group during the eleventh hour.


Github Dating Simulator is available in two tastes. “Dating mode” allows a user to input two Github usernames to ascertain just just just how suitable these are typically. “Team generation mode” (the greater amount of mode that is practical permits a person to enter a list of Github usernames, will get back the perfect pairings for every single of this users. It permits them to create a few choices, such as for example what number of individuals must be a part of each group.

For every single match that Github Dating Simulator analyzes, it outputs a “compatibility” percentage read here, which will be basically the program’s confidence level why these two different people should be able to come together well.

Simply for enjoyable, additionally produces a set of “first date ideas”, that are essentially arbitrarily created task a few ideas in line with the languages that are common between each individual to greatly help kickstart the ideation procedure. (so when it discovers really appropriate matches, moreover it outputs a listing of “first date places”—a.k.a. upcoming hackathons.)


I became in charge of the UI design while the technical execution on this task. One of the most projects that are statistically intensive labored on to date, Github Dating Simulator utilizes a mix of the Github API and graph algorithms to effectively and accurately pair users.

Pairing Algorithm

To produce matchings, it seems during the language use of each individual and compares it on an experience-based degree to those of this other users. This means a one who includes a complete great deal of repositories printed in Ruby will likely to be marked as an “expert” while an individual who has just only written 70 lines of Ruby will undoubtedly be marked as being a “beginner”. This enables users become matched along with other programmers proportional with their skill level, that allows programmers to work well with folks of comparable coding backgrounds, making for the easier hackathon experience overall.

(that is something which ended up being extremely contested, as you might want to fit people with additional experiences with particular development languages with those individuals who have less experience for an even more experience that is educational. Possibly a choice for such a matching algorithm comes into play a future upgrade.)

My records and sketches for the UI design.

Each user is plotted from other users with different paths of varying “lengths” on a graph. Each individual is just a node regarding the graph, and every course represents a typical language between two users. (If two users usually do not share any languages that are common they’re not going to have paths among them.) Path length is determined because of the mean square distinction of every of the languages a person understands.

The algorithm attempts to get the quickest path (essentially, similar experiences with specific languages) between two users. After that it aggregates every one of the paths between two users right into a single “compatibility” metric centered on a logarithmic scale, after which starts producing matches beginning the compatibility percentage that is highest. When a person happens to be matched with another individual, it’s going to delete both users through the graph so that they cannot be matched once again. The algorithm continues until all users have already been matched or there aren’t any more users that are available match.


One of many challenges that are major we went into ended up being that the Github API has price restricting, which stops one from making way too many API demands in a provided period of time. To resolve this nagging problem, we applied a pseudo-caching system having a PostgreSQL database. Making use of the Github API’s conditional demand feature, we just make the full demand to Github that the data at each location has been changed if they tell us. Otherwise, we just count on formerly kept information that it hasn’t changed since we know.

Presenting Github Dating Simulator at the expo that is judging.