Stanford University
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Halley Darrach
Affiliate, Department Funds
Resident in Surgery - Plastic and Reconstructive SurgeryBioHalley Darrach is a plastic and reconstructive surgery resident (2020-2027) at Stanford Health. She is currently completing a professional development year with ReSurge International, a nonprofit dedicated to increasing global access to reconstructive surgery through surgeon education and sustainable, local-driven initiatives.
Dr. Darrach received her medical degree from Johns Hopkins and her bachelor's in cellular biology from California State University Northridge. While at Hopkins, she completed a dedicated research fellowship studying oncologic reconstruction outcomes under the mentorship of Dr. Justin Sacks and worked as a medical illustrator designing patient and surgeon education tools.
Prior to residency, she spent several years conducting astrobiology research at the Jet Propulsion Laboratory and was the first hire at a biotech startup company, where she helped adapt NASA technology for medical and counterterrorism applications. Outside of the OR, she enjoys figure drawing, long-distance swimming, and travelling the world in search of new favourite cuisines.
Dr. Darrach's research interests include gender affirming surgery, oncologic reconstruction, ethnic plastic surgery, societal perceptions of deformity, and use of medical illustration in patient and surgeon education. -
Barnabas Daru
Assistant Professor of Biology and Center Fellow, by courtesy, at the Woods Institute for the Environment
BioBarnabas Daru is an Assistant Professor of Biology. He is interested in the ecology and biogeography of plants across ecological scales. He studied botany in Johannesburg, and was a postdoctoral researcher at Harvard, where he worked on new uses of herbarium specimens for understanding plant ecology and evolution in the Anthropocene, the epoch of profound human impact on Earth. Current research in the Daru lab addresses the role of phylogeny in: 1) understanding how species are distributed, 2) conserving unique communities, and 3) understanding changing distributions in the Anthropocene.
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Srivatsava Daruru
Affiliate, Program-Koyejo, O.
BioSrivatsava Daruru is a researcher and machine learning leader whose work spans natural language processing, neuro-symbolic AI, and large-scale learning systems. He is currently Chief AI Officer at Exlens AI and was formerly Senior Manager of Machine Learning at ServiceNow, where he led research in retrieval-augmented generation (RAG), question answering, post-training optimization of large language models, and agentic workflows for conversational AI. His contributions shaped ServiceNow’s generative AI strategy, including the company’s first production-grade generative application, Genius Q&A.
Daruru’s research interests focus on self-improving large language models, reasoning, and mathematical verification. He is currently workin on VeriBench, an end-to-end benchmark for translating Python into Lean 4, and VeriCI, a continuous verification framework for CI/CD pipelines, as part of neuro-symbolic software reliability.
He has published at leading venues such as ACM SIGKDD and IEEE ICDM, with research spanning scalable clustering for terascale astronomy, parallel data mining, and large-scale telecom analytics. His Google Scholar profile reflects a consistent track record of contributions to data mining, NLP, and applied machine learning. In addition, he is the inventor on multiple patents in NLP, fact validation, and semi-automated data labeling.
Daruru holds an M.S. in Computer Science from the University of Texas at Austin and a B.Tech. (Hons) in Computer Science from IIIT Hyderabad.
About Me (Informal)
I am a scientist and engineer working at the intersection of large language models, reasoning, and verification. My long-term vision is to build AI systems that are not only powerful but also trustworthy, capable of explaining themselves and proving their correctness. I’m especially excited about self-improving LLMs, agentic workflows, and neuro-symbolic methods that combine data-driven learning with formal verification. Currently, I’m working on VeriBench and VeriCI, projects that push AI systems toward rigorous mathematical guarantees while remaining practical for real-world development pipelines. -
Eric Darve
Director, Institute for Computational and Mathematical Engineering (ICME) and Professor of Mechanical Engineering
Current Research and Scholarly InterestsThe research interests of Professor Darve span across several domains, including machine learning for science and engineering, large-language models, transformer models, surrogate and reduced order modeling, stochastic inversing, anomaly detection, numerical linear algebra, high-performance, parallel, and GPU computing.
