Publishing Open Source Research Software in JOSS - an experience report

Our first JOSS submission (paper? package?) is about to be accepted and I wanted to enthuse about the process a bit.

JOSS, the Journal of Open Source Software, is a place to publish your research software packages. Quoting from the about page,

The Journal of Open Source Software (JOSS) is an academic journal with a formal peer review process that is designed to improve the quality of the software submitted. Upon acceptance into JOSS, a CrossRef DOI is minted and we list your paper on the JOSS website.

How is JOSS different?

In essentially all other academic journals, when you publish software you have to write a bunch of additional stuff about what the software does and how it works and why it's novel or exciting. This is true even in some of the newer models for software publication like F1000Research, which hitherto took the prize for least obnoxious software publication process.

JOSS takes the attitude that what the software does should be laid out in the software documentation. JOSS also has the philosophy that since software is the product perhaps the software itself should be reviewed rather than the software advertisement (aka scientific paper). (Note, I'm a reviewer for JOSS, and I'm totally in cahoots with most of the ed board, but I don't speak for JOSS in any way.)

To put it more succinctly, with JOSS the focus is on the software itself, not on ephemera associated with the software.

The review experience

I submitted our sourmash project a few months back. Sourmash was a little package I'd put together to do MinHash sketch calculations on DNA, and it wasn't defensible as a novel package. Frankly, it's not that scientifically interesting either. But it's a potentially useful reimplementation of mash, and we'd already found it useful internally. So I submitted it to JOSS.

As you can see from the JOSS checklist, the reviewer checklist is both simple and reasonably comprehensive. Jeremy Kahn undertook to do the review, and found a host of big and small problems, ranging from licensing confusion to versioning issues to straight up install bugs. Nonetheless his initial review was pretty positive. (Most of the review items were filed as issues on the sourmash repository, which you can see referenced inline in the review/pull request.)

After his initial review, I addressed most of the issues and he did another round of review, where he recommended acceptance after fixing up some of the docs and details.

Probably the biggest impact of Jeremy's review was my realization that we needed to adopt a formal release checklist, which I did by copying Michael Crusoe's detailed and excellent checklist from khmer. This made doing an actual release much saner. But a lot of confusing stuff got cleared up and a few install and test bugs were removed as well.

So, basically, the review did what it should have done - checked our assumptions and found big and little nits that needed to be cleaned up. It was by no means a gimme, and I think it improved the package tremendously.

+1 for JOSS!

Some thoughts on where JOSS fits

There are plenty of situations where a focus solely on the software isn't appropriate. With our khmer project, we publish new data structures and algorithms, apply our approaches to challenging data sets, benchmark various approaches, and describe the software suite at a high level. But in none of these papers did anyone really review the software (although some of the reviewers on the F1000 Research paper did poke it with a stick).

JOSS fills in a nice niche here where we could receive a 3rd-party review of the software itself. While I think Jeremy Kahn did an especially exemplary review of the sourmash and we could not expect such a deep review of the much larger khmer package, a broad review from a third-party perspective at each major release point would be most welcome. So I will plan on a JOSS submission for each major release of khmer, whether or not we also advertise the release elsewhere.

I suppose people might be concerned about publishing software in multiple ways and places, and how that's going to affect citation metrics. I have to say I don't have any concerns about salami slicing or citation inflation here, because software is still largely ignored by Serious Scientists and that's the primary struggle here. (Our experience is that people systematically mis-cite us (despite ridiculously clear guidelines) and my belief is that software and methods are generally undercited. I worry more about that than getting undue credit for software!)

JOSS is already seeing a fair amount of activity and, after my experience, if I see that something was published there, I will be much more likely to recommend it to others. I suggested you all check it out, if not as a place to publish yourself, as a place to find better quality software.

--titus

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