# \#machine-learning

**URL:** https://rcop.michaeljfox.org/tag/machine-learning/35.md

[Latest](https://rcop.michaeljfox.org/latest.md) · [Categories](https://rcop.michaeljfox.org/categories.md) · [Tags](https://rcop.michaeljfox.org/tags.md)

---

## [ML in Imaging: Overfitting, Underfitting, and Best Practices](https://rcop.michaeljfox.org/t/ml-in-imaging-overfitting-underfitting-and-best-practices/1360)

<div class="topic-metadata">

**Author:** [@AmgadDroby](https://rcop.michaeljfox.org/u/AmgadDroby)\
**Replies:** 2\
**Last updated:** [December 18, 2025, 3:58pm UTC](https://rcop.michaeljfox.org/t/ml-in-imaging-overfitting-underfitting-and-best-practices/1360 "2025-12-18T15:58:11Z")

</div>

While reviewing several imaging studies applying machine learning over the past couple of weeks, a pattern keeps appearing where suggested/ tested models are often trained without independent validation cohorts, datasets…

---

## [Webinar - A Phenoclustering Analysis of PPMI Data for PD Subtyping](https://rcop.michaeljfox.org/t/webinar-a-phenoclustering-analysis-of-ppmi-data-for-pd-subtyping/1077)

<div class="topic-metadata">

**Author:** [@gginnan](https://rcop.michaeljfox.org/u/gginnan)\
**Replies:** 16\
**Last updated:** [July 18, 2025, 4:26pm UTC](https://rcop.michaeljfox.org/t/webinar-a-phenoclustering-analysis-of-ppmi-data-for-pd-subtyping/1077 "2025-07-18T16:26:02Z")

</div>

Do you work with PPMI data and investigate subtyping in Parkinson’s disease? If so, please join us on Tuesday, July 15th, 1:00-2:00pm (EDT) for our next community webinar as we hear from Dr. Victoria Catterson (@vcatter…

---

## [Data Science in Parkinson's Disease: Opportunities and Challenges](https://rcop.michaeljfox.org/t/data-science-in-parkinsons-disease-opportunities-and-challenges/935)

<div class="topic-metadata">

**Author:** [@jf.daneault](https://rcop.michaeljfox.org/u/jf.daneault)\
**Replies:** 0\
**Last updated:** [March 19, 2025, 4:01pm UTC](https://rcop.michaeljfox.org/t/data-science-in-parkinsons-disease-opportunities-and-challenges/935 "2025-03-19T16:01:52Z")

</div>

I’ve been thinking about this for a while and discussing it with colleagues, students, and friends so I thought it could be interesting to discuss the opportunities and challenges of data science in PD. What are your tho…

---

## [Finding descriptions of PPMI features](https://rcop.michaeljfox.org/t/finding-descriptions-of-ppmi-features/692)

<div class="topic-metadata">

**Author:** [@jf.daneault](https://rcop.michaeljfox.org/u/jf.daneault)\
**Replies:** 5\
**Last updated:** [October 17, 2024, 4:37pm UTC](https://rcop.michaeljfox.org/t/finding-descriptions-of-ppmi-features/692 "2024-10-17T16:37:21Z")

</div>

Hi, my student and I are looking to leverage machine learning models and the PPMI dataset to examine the progression of various symptoms. As a first step, we linked each feature to its description in the data dictionary…