Joshua T Vogelstein
Joshua T Vogelstein is a machine-learning researcher whose work links brain science and artificial intelligence. He earned degrees in biomedical engineering, applied mathematics and statistics, and neuroscience, then developed methods and shared tools for analyzing large brain datasets. His work spans spike inference, open connectomics, prospective learning for changing environments, and MIGHT, a method for measuring uncertainty in AI-assisted cancer screening. Since December 2025, he is a co-founder of Flourish while on leave from his Johns Hopkins associate professor role.
Timeline
-
1998–2009
Engineering and neuroscience training
He earns a BA in biomedical engineering at Washington University in St. Louis in 2002. At Johns Hopkins, he completes an MS in applied mathematics and statistics and a PhD in neuroscience in 2009; his thesis, OOPSI, develops spike-inference algorithms for neural connectivity from population calcium imaging.
-
2009
Inferring neural spikes
In 2009, he coauthors a paper that uses sequential Monte Carlo particle filters and biophysical models to infer spike trains and calcium dynamics from fluorescence. The method estimates when spikes occur within each image frame.
-
2011
Open Connectome Project
In 2011, he co-founds the Open Connectome Project. He works with neuroscience datasets that grow from tens of terabytes to hundreds.
-
2018
NeuroData's cloud ecosystem
In 2018, he and his coauthors describe NeuroData's open-source computational ecosystem for large neuroscience datasets. They move its custom software stack to a community-built system in the commercial cloud that reuses components across datasets.
-
2020–2025
An NSF CAREER project
He leads an NSF CAREER project from 2020 to 2025 on statistical theory and methods for populations of attributed connectomes. The project aims to help scientists infer structure in brain networks and compare connectivity patterns.
-
2024
Prospective learning
In 2024, he coauthors Prospective Learning: Learning for a Dynamic Future, a framework for machine learning when data and goals change over time. Its Prospective ERM method returns predictors for future data.
-
2025
MIGHT for medical decisions
In 2025, he coauthors MIGHT, a method for measuring uncertainty in AI predictions and controlling specific kinds of errors. The team applies it to circulating cell-free DNA data from people with and without cancer.
-
Since December 2025
Co-founding Flourish
Since December 2025, he is a co-founder of Flourish, a neuroscience-grounded AI company, and is on leave from his associate professor role in biomedical engineering at Johns Hopkins. In February 2026, he joins the university's Data Science and AI Institute as faculty, and his research uses nonlinear machine learning to study natural and artificial intelligence through biomedical data.
Career
- Since 2026Johns Hopkins UniversityAssociate Professor
- Since 2025FlourishCo-founder
- 2011–2015Duke University
- 2011–2020Child Mind Institute
Education
- 2009Johns Hopkins UniversityMS in applied mathematics and statistics
- 2002Washington University in St. LouisBA in biomedical engineering
Most-cited works
- Detection and localization of surgically resectable cancers with a multi-analyte blood test
- Differential connectivity and response dynamics of excitatory and inhibitory neurons in visual cortex
- Fast Nonnegative Deconvolution for Spike Train Inference From Population Calcium Imaging
- The connectome of an insect brain
- Imaging human connectomes at the macroscale
Sources and credits
Photo: We have no published photo of Joshua T Vogelstein yet. Send us a free-licensed photo.
- Joshua Vogelstein, Ph.D.
- Spike Inference from Calcium Imaging Using Sequential Monte Carlo Methods
- A community-developed open-source computational ecosystem for big neuro data
- Prospective Learning: Learning for a Dynamic Future
- Minimizing and quantifying uncertainty in AI-informed decisions: Applications in medicine


