Evaluating the pipeline stability though the libmath fuzzy environment

[ali4006]

Project info

Evaluating the pipeline stability though the libmath fuzzy environment

Title:
Evaluating the pipeline stability though the libmath fuzzy environment

Project lead:
Ali Salari: @ali4006
Greg Kiar: @gkiar
Valerie Hayot: @ValHayot
Yohan Chatelain: @yohanchatelain

Timezone:
UTC-4

Hub:
The Americas

Description:
Data analysis pipelines are known to be impacted by the operating system updates, presumably due to the creation, propagation, and amplification of numerical noises. These are uncontrolled noises that are originated in updates of low-level libraries by third-party developers.
In practice, these numerical instabilities are caused by truncation and round-off errors due to
the precision limitation of the floating-point arithmetic.
The finite precision of the floating-point numbers leads to represent an approximation of
a real number that may be different on the computers with various precision formats.

A possible method to investigate operating system related effects more comprehensively
is to introduce controlled numerical perturbations in the math library functions (libmath), which could be done by introducing noise in floating-point computations through Monte-Carlo Arithmetic (MCA) using the Verificarlo tool.

For the hackathon we'll be looking to test the validity of the instrumented libmath library functions and also evaluate the stability of the existing neuroimaging pipelines.

Link to project:
https://github.com/gkiar/fuzzy

Mattermost handle:
@ali.salari, @gkiar, @valeriehayot, @yohan.chatelain

Goals for the OHBM Brainhack
Validating the instrumented math functions and evaluating the stability of the FSL tool

Good first issues:

1. Preparing tests to validate the instrumented libmath library functions
2. Finding neuroimaging pipelines to evaluate

Skills:
Any of the following skills would be useful for the project.

• Python and c++ programming languages
• Familiar with FSL tool
• Familiar with Monte Carlo Arithmetic (MCA) technique and Verificarlo tool

Chat channel:

• hbmhack-fuzzy
  https://mattermost.brainhack.org/brainhack/channels/hbmhack-fuzzy

Video channel:

Please have a look at the Mattermost channel (pinned posts) for the URL of the video channel, or alternatively, please contact to @ali.salari, @gkiar, @valeriehayot, @yohan.chatelain
on Mattermost.

Image for the OHBM brainhack website

Project submission

Submission checklist

Once the issue is submitted, please check items in this list as you add under 'Additional project info'

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• Skills: list skills that would be particularly suitable for your project. We ask you to include at least one non-coding skill, cf. here.
• Chat channel: A link to a chat channel that will be used during the OHBM Brainhack. This can be an existing channel or a new one. We recommend using the Brainhack space on mattermost, cf. here.
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[welcome]

(Image: CC-BY license, The Turing Way Community, & Scriberia. Zenodo. http://doi.org/10.5281/zenodo.3332808)
🎉 Welcome to the 2020 OHBM Hackathon! 🎉 We're really excited to have your input on this repository and welcome your idea! 💖 If you haven't done so already, please make sure you check out our Code of Conduct. Did you issue a new hackathon project? Please check if you have provided all relevant information and an image for the website.

[ali4006]

hi @ohbm/project-monitors: My project is ready!

[DorienHuijser]

@ali4006 I picked this image for your project on the hackathon website, is that okay? If not, feel free to provide another image!

[ali4006]

Hey @DorienHuijser, it's OK. Thank you.

[complexbrains]

Dear @ali4006 Would you mind creating and sharing a video link of your chat room in your Mattermost channel please?

Once you are done with that, please let us know, we will complete the revision for you! Thank you 🤗

[jhlegarreta]

Dear @ali4006 Would you mind creating and sharing a video link of your chat room in your Mattermost channel please?

They already did it, so moving to the completed cards.