Skip to content

Research across artificial intelligence, language, and physical systems.

Research informs how I evaluate evidence, retrieval quality, uncertainty, and system limits. Current work includes hybrid information retrieval for Urarina–Spanish archival material while I pursue a Master of Science in Artificial Intelligence at the University of St. Thomas.

Research Profiles

Persistent identifiers, citation indexes, and academic profiles associated with my research record.

Research context

Interdisciplinary work grounded in careful data processing, evaluation, and technically accurate system boundaries.

Retrieval for low-resource-language archives

Current language research examines hybrid information-retrieval methods for Urarina–Spanish archival material, with work spanning information retrieval, natural language processing, multimodal AI, retrieval-augmented generation, and computational linguistics. The system supports retrieval and alignment research; it is not presented as full machine translation.

Magnetospheric physics and space weather

At Augsburg University, I contributed to research on electromagnetic ion cyclotron (EMIC) waves and magnetospheric dynamics using observations from multiple spacecraft and ground-based instruments. The resulting collaborative 2018 Journal of Geophysical Research: Space Physics study combined EMIC-wave observations with radiation-belt measurements from REPT and MagEIS aboard NASA's Van Allen Probes to examine relativistic and ultrarelativistic electron flux behavior. Work with large-scale scientific data led through systems engineering to current AI and information-retrieval research.

Research Areas

Areas represented across two distinct eras: current graduate AI research and earlier space-physics work.

Artificial IntelligenceMachine LearningInformation RetrievalNatural Language ProcessingLow-Resource LanguagesMultimodal AIRetrieval-Augmented Generation (RAG)Computational LinguisticsMagnetospheric PhysicsEarth's Radiation BeltsMagnetometer Data AnalysisElectromagnetic Ion Cyclotron (EMIC) WavesSpace Weather

Accepted Conference Paper

Accepted research is listed separately from work that already has a formal publication record.

Accepted Conference Paper2026

Hybrid Retrieval for Low-Resource Language Archives

David Braun and Michael Dorin

IEEE LA-CCI 2026 · Accepted Conference Paper

Information RetrievalLow-Resource LanguagesMultimodal AIRAG / RetrievalComputational Linguistics
Research status and project context

Peer-Reviewed Journal Article

Published journal research with a DOI, byline, and affiliation verified against the publisher record.

Peer-reviewed journal article2018

EMIC Wave Events During the Four GEM QARBM Challenge Intervals

M. J. Engebretson, J. L. Posch, D. J. Braun, W. Li, Q. Ma, A. C. Kellerman, C.-L. Huang, S. G. Kanekal, C. A. Kletzing, J. R. Wygant, et al.

Journal of Geophysical Research: Space Physics

Web of Science: WOS:000445731300021

D. J. Braun

Department of Physics, Augsburg University, Minneapolis, MN, USA

The collaborative study incorporated radiation-belt electron observations from REPT and MagEIS aboard NASA's Van Allen Probes, together with EMIC-wave observations and other data sources. This is instrumentation and data context for the study, not a claim of instrument development.

Conference Abstracts

Meeting abstracts are kept distinct from peer-reviewed journal publications.

Conference abstract

EMIC wave events during the four QARBM challenge intervals

Mark J. Engebretson, Jennifer L. Posch, David Braun, et al.

2017 AGU Fall Meeting · SM51B-1176

December 15, 2017

Conference abstract

Nightside High Latitude Magnetic Impulse Events

Mark J. Engebretson, Jennifer L. Posch, David Braun, et al.

2017 AGU Fall Meeting · SM31B-2629

December 13, 2017

Professional Affiliations

Memberships and professional activities, shown as secondary context for the research record.

Institute of Electrical and Electronics Engineers

Student Member

Association for Computing Machinery

Student Member

Toastmasters International

Member

White Bear Lake, Minnesota

June 2026 to Present

Research and evidence standards

Research status, reproducibility, system maturity, and technical limitations are labeled according to the evidence available for each claim.

How I label and verify technical work