Marie Roald

Marie Roald

Informasjonsteknolog ved Nasjonalbiblioteket | Data Scientist at the National Library of Norway

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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.

Pages

Posts

Future Blog Post

less than 1 minute read

Published:

This post will show up by default. To disable scheduling of future posts, edit config.yml and set future: false.

Blog Post number 4

less than 1 minute read

Published:

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 3

less than 1 minute read

Published:

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 2

less than 1 minute read

Published:

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 1

less than 1 minute read

Published:

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

portfolio

publications

Tracing network evolution using the PARAFAC2 model

Published in ICASSP'20, 2020

This conference paper demonstrates that PARAFAC2 can successfully trace network evolution from fMRI images.

Click here for citation details

Roald M, Bhinge S, Jia C, Calhoun V, Adalı T, Acar E. Tracing network evolution using the parafac2 model. ICASSP 2020-2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020 May 4 (pp. 1100-1104). IEEE. https://arxiv.org/abs/1911.02926

PARAFAC2 AO-ADMM: constraints in all modes

Published in EUSIPCO'21, 2021

Initial publication of the AO-ADMM algorithm for fitting regularized PARAFAC2 models.

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Roald M, Schenker C, Cohen JE, Acar E. PARAFAC2 AO-ADMM: constraints in all modes. 2021 29th European Signal Processing Conference (EUSIPCO) 2021 Aug 23 (pp. 1040-1044). EURASIP. https://arxiv.org/abs/2102.02087

Tracing Evolving Networks Using Tensor Factorizations vs. ICA-Based Approaches

Published in Frontiers in neuroscience, 2022

In this paper, we compare the PARAFAC2 method and joint ICA and IVA for tracing evolving networks from fMRI data. It is a continuation of the work published at ICASSP'20

Click here for citation details

Acar E, Roald M, Hossain KM, Calhoun VD, Adali T. Tracing Evolving Networks Using Tensor Factorizations vs. ICA-Based Approaches. Frontiers in neuroscience. 2022;16. https://www.frontiersin.org/articles/10.3389/fnins.2022.861402/full

An AO-ADMM approach to constraining PARAFAC2 on all modes

Published in SIAM Journal on Mathematics of Data Science (SIMODS), 2022

Journal paper of the AO-ADMM algorithm for fitting regularized PARAFAC2 models. Also includes some general theory on the PARAFAC2 constraints.

Click here for citation details

Roald M, Schenker C, Calhoun VD, Adali T, Bro R, Cohen JE, Acar E. An AO-ADMM approach to constraining PARAFAC2 on all modes. SIAM Journal on Mathematics of Data Science. 2022;4(3):1191-222. https://arxiv.org/abs/2110.01278

talks

teaching

Python for high school teachers

Five-day intensive course, Simula Learning/Akershus Fylkeskommune/Viken Fylkeskommune,

Five-day intensive course teaching Python and how to use it in science education at the high school level. Read more

Python for primary school teachers

Five-day intensive course, Simula Learning/Bærum kommune/Asker kommune,

Five-day intensive course teaching Python and how to use it in science education at the primary school level (grade 5-10). Read more