Technological advances in the biological sciences have led to an increasing availability of so-called ‘-omic’ datasets, allowing fundamental questions in biology to be answered at an unprecedented rate ¹ . However, these datasets are complex, requiring novel and specialized informatics tools for proper analysis and to overcome the computational bottleneck in research. Open-source bioinformatics tools and pipeline development accelerates the rate of research by allowing the community to both reuse and thoroughly assess such methods. Thus, by solving biological problems in an open and collaborative manner, the field can progress at a faster rate than if code remains unavailable to the larger community ² .

Hackathons offer a solution to catalyze tool and pipeline development for biological data science, as well as foster interdisciplinary collaborations ³ . These events aim to solve defined computational problems over a period of days by bringing together small teams of individuals with different and diverse skillsets. Although frequently valuable for the outputs they generate, hackathons have faced criticism due to low levels of diversity amongst participants ⁴ . We therefore established hackseq, a genomics hackathon collective ( http://www.hackseq.com) that aims to promote open science, collaboration and diversity. We placed special emphasis in promoting leadership amongst women, minorities and early-career scientists. The inaugural hackseq event took place over three days in October 2016 in Vancouver (British Columbia, Canada) and was a satellite event to the annual American Society of Human Genetics (ASHG) meeting. Here we report a summary of this hackathon in the hopes of promoting similar events in the future.

hackseq was the first genomics hackathon in Vancouver and was based on the NCBI hackathon format ³ . Some hackathons can be perceived as high-pressure events exclusive to technically inclined and experienced individuals. We thus took measures to ensure that people of all skill levels and backgrounds were encouraged to apply. We structured hackseq as a three-day event that runs primarily from 8AM – 5PM on the Saturday/Sunday/Monday prior to the 2016 ASHG meeting. The hackseq itinerary is accessible on the hackseq github repository ( https://github.com/hackseq/October_2016/blob/master/hackseq_2016_schedule.md).

First, we opened a call for ‘team leaders’ to propose a project and lead a small team at hackseq through social media, such as Twitter, making announcements at the Vancouver Bioinformatics User Group (VanBUG) and bioinformatics.ca, as well as direct email contact with potential leaders. We screened the projects to confirm that their aims and scope would be appropriate for a 72 hour hackathon. For the ten accepted projects we used GitHub as a discussion board, creating issue threads ( https://github.com/hackseq/hackseq_projects_2016/issues) for each project, allowing prospective participants to view and discuss the details about each project before applying to join a particular team.

Once we established the ten hackseq projects, we opened the call for participants. Our main goal in recruiting participants was to reach out to a diverse group of individuals and to promote participation of women, minorities and early-career scientists. To this end, we partnered with organizations, such as Society for Canadian Women in Science and Technology (SCWIST) and VanBUG, to attract local participants. To encourage early-career scientist involvement, we contacted undergraduate and graduate-level computational sciences and bioinformatics programs at regional universities. To reach the global scientific audience, we contacted several human genetics societies around the world asking them to email participant application information to their respective mailing lists.

To promote economic diversity and lower the barrier to entry for international participants, we partnered with ASHG to create travel awards based on financial need and/or minority status. hackseq had no registration fee. Lastly, we made announcements on Twitter, Galaxy Project’s events calendar, and various international conferences, such as Bioinformatics Open Source Conference 2016 and the 13 ^th International Congress of Human Genetics, leading up to the hackathon.

In the participant application form, prospective participants ranked the top three projects on which they would like to work. Participants could apply for travel awards by ASHG and request child care, covered by our budget, to promote participation amongst parents. The organizing committee and the team leaders evaluated the applications based on not only their skill levels, but also their interests and passion for genomics. To ensure well-rounded teams, we considered both the project preferences and skill levels during the team assignment phase, ensuring a balance between novices and expert coders, and biological and computational expertise. All forms developed for hackseq are available online ( https://github.com/hackseq/October_2016/blob/master/Forms.md).

By defining the projects and teams beforehand, participants got to know their team members and prepare technical infrastructure. Teams hit the ground running on the first day, beginning work unprompted by the organizers at 8AM of the first day.

hackseq had 66 participants in attendance from nine nations, divided into nine teams ranging from 3 to 10 individuals. Of the accepted ten projects, two team leaders withdrew prior to the hackathon for personal reasons, and one popular project split into two teams, resulting in nine teams. The mode age-category was 30–34 years old (62.5%) for team leaders, and 25–29 years old (58%) for participants ( Figure 1A). Graduate students made up the largest fraction of participants with 48.2%, followed by academic staff (15.5%), industrial scientists (13.8%), undergraduates (10.3%), postdoctoral fellows (6.9%) and academic faculty (5.2%). Notably, the team leaders were more likely to be industry scientists (44.4%) or young faculty (22.2%) ( Figure 1B). In total, 22 of 62 (35.5%) participants identified as female and 40 as male. A total of 41% self-identified as Caucasian, 40% as Asian or Pacific Islander, and 19% as Arab, Latin American or unspecified ( Figures 1C and D).

Hackathons have little essential resource requirements. In this section, we outline the core logistics and technical infrastructure we employed. While these requisites could be stripped down, our experience was that attention and planning for these details maximized the efficiency of our teams to focus on coding and development.

The projects undertaken during hackseq were from diverse fields within bioinformatics, ranging from human genomic variation analysis, microbial ecology and transcriptomics, to bioinformatic algorithm development. The projects were proposed by the team leaders, who defined the scope of the work, with the idea that at the end of the 72 hours there will have developed a working prototype. Here we provide a brief summaries from the projects. Scientific abstracts, videos of final presentations and updated information on each project can be found at www.hackseq.com/projects16.

The overarching themes of hackseq were inclusivity, open science and collaboration. To gauge the extent to which we were successful in delivering on these themes, we performed a final survey at the conclusion of hackseq. Participants overwhelmingly described their experience as positive ( Figure 3), with 100% (n = 54) of the survey respondents indicating that they would participate in an event like hackseq again and a further 80% indicating that they would like to take on an organizational/leadership role in future hackseq events. Participants specifically highlighted that hackseq created ample recruitment, employment and collaborative opportunities, while also exposing participants to different datasets and analyses. We believe this reflects the underlying desire amongst young scientists to share, collaborate and learn from one another. They only need be given the opportunity to do so.

By organizing hackseq as a satellite meeting of an international conference like ASHG, we were able to attract team leaders and participants from around the world, including a large proportion of young investigators and female participants ( Figure 1). There was a higher proportion of females at hackseq (35.5%), than reported ratios at hackathons for which data is available, 20% at NASA’s Space Apps Challenge ( https://www.fastcompany.com/3059036/most-creative-people/what-do-women-want-at-hackathons-nasa-has-a-list) or 15% at Spotify-organized hackathons ( https://labs.spotify.com/2015/01/13/diversify-how-we-created-a-hackathon-with-50-50-female-male-participants/), which we believe to be a consequence of starting with a representative organizing committee and specifically encouraging female participation during recruitment.

To further increase global representation at future hackseq events, we recommend providing additional targeted travel awards or remote participation options to reduce proximity/cost restrictions. Further improvements could include educational resources to address common technical issues, the provision of an overnight area for participants who would like to continue to work after hours and additional activities to encourage interaction with members from different teams.

The nature of biological sciences has shifted to an increasing emphasis on computational analysis. Collaborative events, such as hackseq, offer an exciting platform to bring together a wide spectrum of scientists to work together and innovate. We present demographic information about the first hackseq hackathon and encourage future organizers to do likewise, to quantify social inequalities that may be present in such events, and strive to achieve equal representation in the sciences. It’s our hope that the information presented here will aid and encourage others in organizing genomics hackathons.

The data referenced by this article are under copyright with the following copyright statement: Copyright: � 2017 hackseq Organizing Committee 2016

Data associated with the article are available under the terms of the Creative Commons Zero "No rights reserved" data waiver (CC0 1.0 Public domain dedication).

Dataset 1: hackseq demographics: De-identified demographic data from hackseq participants in the pre-meeting survey/confirmation of attendance. doi, 10.5256/f1000research.10964.d152802 ⁶

Dataset 2: Post- hackseq survey responses: De-identified post- hackseq survey response data for the figures. doi, 10.5256/f1000research.10964.d152803 ⁷