Computational Discovery
Machine learning, multimodal integration, disease subtyping, longitudinal prediction, and biomarker discovery for complex biomedical datasets.
Building computational tools that transform complex biomedical data into scientific insight through reproducible analytics, open-source scientific software, and human-in-the-loop AI-assisted discovery.

Modern biomedical research can generate thousands of clinical, imaging, molecular, behavioral, and omics measurements from a single study. This research program builds computational infrastructure that helps teams explore complex datasets, interpret findings, and generate biologically meaningful hypotheses while maintaining scientific rigor.
Machine learning, multimodal integration, disease subtyping, longitudinal prediction, and biomarker discovery for complex biomedical datasets.
Open-source software that translates published methods into reproducible analytical workflows, reports, and reusable research systems.
Human-in-the-loop AI, conversational data exploration, scientific reasoning, and transparent workflows that help scientists think more effectively.
Statistical workflows, reports, visualization, and open-source biomedical data science.
MathWorks MATLAB app development for signal processing, GUI tools, and quantitative neuroscience.
Clustering, dimensionality reduction, prediction, and interpretable biomarker discovery.
Interactive figures and reports that help scientists inspect multidimensional evidence.
Apps and dashboards that make complex workflows usable by interdisciplinary teams.
Integrated molecular, imaging, clinical, cognitive, and behavioral analysis workflows.
Wearables, tablet-based neuropsychology, actigraphy, and longitudinal signal streams.
Open-source research infrastructure that makes methods reusable and auditable.
Biomedical engineering and computer science training anchor a translational program that turns complex biomedical data into actionable insight for collaborators, cohorts, and grant-funded scientific teams.
Bringing engineering design, quantitative neuroscience, and computational biology to translational brain health research.
Using machine learning, statistics, networks, and data visualization to reveal meaningful cognitive, clinical, and biomarker phenotypes.
Building open-source software, dashboards, and reporting systems that make methods reproducible, transparent, and accessible.
A current layer of scientific momentum connecting software systems, computational phenotyping, biomedical data science, translational brain health, responsible AI-assisted discovery, and field-building work.
Citable, downloadable MATLAB software for multi-electrode array data analysis, visualization, and interpretation.
Open-source reporting infrastructure for reproducible biomedical data science, biomarker analysis, and scientific reasoning.
Latent structure, subgroup discovery, and reproducible analytic pipelines for brain health.
Interactive scientific communication systems that make analytical results inspectable and reusable.
Planned reporting workflows for proteomics QC, clustering, biomarker discovery, and interpretation.
Planned metabolomics reporting infrastructure for multi-omics biomedical discovery.
Planned reporting workflows for multiplex biomarker panels and translational studies.
Conceptual human-in-the-loop AI layer for conversational data exploration and transparent scientific reasoning.
Talks and teaching that connect patient cohorts, cellular systems, and computational methods.
These systems are positioned as research outputs: reusable, inspectable, and designed to turn complex biomedical data into reproducible scientific insight, from quality control to biomarker analysis to AI-assisted discovery.

A downloadable point-and-click tool for spike-train statistics, burst detection, functional connectivity, periodicity analysis, visualization, and provenance-aware exports.

Supports metadata-aware QC, statistical workflows, biomarker analysis, visualization, and reproducible scientific reasoning.
Moves beyond average effects toward clinically and biologically interpretable hidden structure.
Makes reproducible research outputs inspectable, shareable, and extensible.
Designed to turn high-dimensional proteomics analyses into transparent QC, biomarker discovery, clustering, and interpretation reports.
Designed for reproducible metabolomics reports that connect multi-omics measurements with statistical workflows and biological interpretation.
Designed for transparent QC, visualization, and biomarker discovery in multiplex translational studies.
Frames conversational data exploration, transparent assumptions, and reproducible analysis planning as future scientific infrastructure.
The research architecture connects hidden structure in complex biomedical data to scientific infrastructure, translational science, biomarkers, multi-omics, visualization, reproducibility, people, and impact.
Research threads make the publication ecosystem navigable by showing how individual outputs become coherent programs of translational data science.
Unsupervised learning, cognitive profiles, and interpretable models for heterogeneous brain health data.
Computational pipelines for linking multi-omics, neuroimaging, inflammation, and cognition.
Open-source tools, reporting frameworks, dashboards, and analysis interfaces that make science reproducible.
Cognitive outcomes, biomarker signals, and clinical data streams for understanding post-acute brain health.
Field-building work around organoid intelligence, neural systems, and responsible scientific infrastructure.
JMIR mental health
Establishes regression-based iPad cognitive norms for BRACE in the MACS/WIHS Combined Cohort Study.

Neuropsychology
Identifies six cognitive profiles among virally suppressed people with HIV and the factors that distinguish them.

The Journal of infectious diseases
Frames machine learning as a tool for discovering cognitive biotypes in people with HIV.
Neuroinformatics
Introduces MEAnalyzer as reproducible software for spike train analysis in multi-electrode array experiments.
Brain, Behavior, and Immunity
Uses non-contrast MRI to study blood-brain barrier permeability and cognition in Long COVID.
Frontiers in Science
Defines organoid intelligence as an emerging discipline requiring technical, ethical, and community infrastructure.
Frontiers in neurology
Uses self-organizing maps and random forests to characterize cognitive profiles in virally suppressed women with HIV.
Brain, Behavior, & Immunity-Health
Links socioeconomic conditions, metabolomic profiles, and longitudinal declarative memory change in women with and without HIV.
AIDS
Examines how polypharmacy relates to cognitive function over time in people with HIV.
JAIDS Journal of Acquired Immune Deficiency Syndromes
Studies whether tryptophan-kynurenine pathway activation is associated with cognition in virally suppressed women with HIV.
Community infrastructure for scientific coding, mentoring, and reproducible practice.
Local data science community building, training, and inclusive technical leadership.
Open computational neuroscience education and global scientific community.
Board involvement supporting community health, care, and service.

A translational engine for integrating cognitive data, biomarkers, neuroimaging, and computational methods across HIV, Long COVID, aging, and related brain health questions.

A collaborative infrastructure role focused on biomarker discovery, validation, and interpretation for HIV-associated neurocognitive and neuroimmune conditions.

Interdisciplinary data science, AI, modeling, and translational analytics.

Large-scale data systems, computational research, and reproducible scientific workflows.
Member of the BRACE/tablet-based cognitive data reading center, Sleep Working Group, and Neuropsych Working Group.
Collaborative research infrastructure for studying neurocognitive, clinical, and biopsychosocial phenotypes in people with HIV.
Program infrastructure for integrating cognitive, biomarker, neuroimaging, and computational methods across translational brain health questions.
Collaborative neuroHIV infrastructure focused on biomarkers, neurotherapeutics, and translational discovery.
A cross-disciplinary research direction connecting stem-cell systems, electrophysiology, computational analysis, ethics, and community standards.
Recognition of the Brain Health Program's interdisciplinary work connecting cognitive impairment, HIV, Long COVID, translational neuroscience, and data science.
Current trainees, former trainees, and collaborators make the scientific software, cohort analytics, and translational discovery ecosystem possible.
PeopleThe lab is extending reproducible computational science toward conversational data exploration, cross-domain biomedical integration, and SciDataAgent, an in-development AI reasoning layer for human-in-the-loop scientific discovery.
AI-assisted discovery should help researchers inspect evidence, surface assumptions, and reason transparently without replacing scientific expertise.
Researchers need interfaces that let them ask better questions of clinical, imaging, molecular, and omics datasets while preserving provenance.
Reports, workflows, dashboards, and open-source software make biomedical AI and machine learning results auditable, reusable, and easier to extend.
Clinical, biomarker, neuroimaging, behavioral, and multi-omics data become more powerful when integrated through transparent computational systems.
raha [at] jhmi [dot] edu
Open to collaborations, speaking invitations, trainee opportunities, software inquiries, and interdisciplinary research partnerships.