Topic: Exotic Neural Networks
Time: Mar 10, 2021 08:00 PM Eastern Time (US and Canada)
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https://stonybrook.zoom.us/j/
Meeting ID: 913 8893 8500
Passcode: 501725
Event information
Location: SAC Auditorium, RSVP
You are cordially invited to attend the biweekly Brookhaven AI Mixer (BAM). BAM includes one short talk on AI research happening at BNL, followed by an open mixer. The first half hour will consist of presentations that will be available via ZOOM, and the second half hour will be for in person only networking.
We meet every other Tuesday at noon in CDSD's Training Room (building 725, room 2-124) to learn about interesting AI methods and applications, engage with potential collaborators, prepare for pending FASST funding calls, and build a community of AI for Science at BNL.
Abstract: Identifying model Hamiltonians is a vital step toward creating predictive models of materials. We combined Bayesian optimization with the EDRIXS numerical package to infer Hamiltonian parameters from resonant inelastic X-ray scattering (RIXS) spectra within the single atom approximation. To evaluate the efficacy of our method, we tested it on experimental RIXS spectra for several materials and demonstrated that it can reproduce results obtained from hand-fitted parameters to a precision similar to expert human analysis while providing a more systematic mapping of parameter space. Our work provides a key first step toward solving the inverse scattering problem to extract effective multi- orbital models from information-dense RIXS measurements, which can be applied to a host of quantum materials.
Biography: Marton Lajer is a postdoctoral researcher at the Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory. Marton obtained his PhD in theoretical physics at the Eotvos Lorand University, Hungary, in 2021. He was a junior research fellow at the Wigner Research Centre for Physics in Budapest before joining BNL in September 2022. His background spans various analytical and performance-critical numerical methods, mostly in the context of low- dimensional quantum field theories and quantum many-body systems. His research currently focuses on incorporating AI-enhanced methods to various problems in inelastic spectroscopy.
In addition to our speaker, we will have a number of CDS staff in attendance with expertise in AI methods and applications including image analysis, foundation models development, and inverse problem solving.
Location: CDS, Bldg. 725, Training Room
Join ZoomGov Meeting: https://bnl.zoomgov.com/j/1604383624?pwd=ffQ5cUPNxTI7nzClKQO6cnsNbhF9Vf.1
Meeting ID: 160 438 3624
Passcode: 558449
Please Note: Due to a funding shortfall, we are for the time being no longer able to provide pizza and sodas for these events. We will have coffee though, and all are of course welcome to bring their lunch.
Abstract: Human gaze behavior is a fundamental cue for understanding social intent, human-machine interaction, and cognitive processes. This dissertation addresses the challenges of gaze target estimation (GTE), also known as gaze following, by developing a holistic understanding of gaze across complex environments.
First, we improve GTE performance through Patch-level Distribution Prediction (PDP). Unlike traditional pixel-wise regression, PDP models gaze as a spatial distribution over patches, better accounting for annotation variance and regularizing the pixel-wise heatmap prediction through multi-scale modeling. Second, to mitigate the high cost of data labeling, we present GCDR, the first semi-supervised method for gaze following. By prompting large Visual Question Answering (VQA) models to generate initial Grad-CAM heatmaps and refining them via a diffusion model, GCDR achieves robust performance with minimal human annotation. Third, we expand the applicability of GTE to multi-camera environments. By introducing the Multi-View Gaze Target (MVGT) dataset, along with two novel frameworks for integrating information and predicting gaze targets across views, we explore a new direction that overcomes single-view limitations such as face occlusion and out-of-view targets. Finally, we propose OmniGF, a multi-person gaze following model built on Vision-Language Models (VLMs) that enriches gaze target localization with semantic and social reasoning. By leveraging the semantic capabilities of VLMs alongside structural innovations to ground the model with fine-grained cues for each individual, OmniGF achieves state-of-the-art performance across three gaze following tasks.
Collectively, by tackling the gaze following problem through the distinct yet complementary perspectives of probabilistic modeling, geometric reasoning, and multimodal learning, this dissertation builds a holistic understanding of human gaze, paving the way for more intuitive artificial intelligence systems in downstream applications.
Speaker: Qiaomu Miao
Location: NCS 220
The Vedanta Forum is devoted to one of humanity's oldest and most profound pursuits -- thinking. Thinking about who we truly are: the one that remains constant through childhood and old age, through waking, dream, and deep sleep. Thinking about the source and cause of creation, and its relationship to what inheres in us.
Across history, such thinking, both meditative and scientific, has been aimed at these questions. The ancient Upanishads proclaimed, Tat Tvam Asi -- Thou Art That -- revealing the non-dual identity of the individual and the ultimate reality. Centuries later, modern scientists such as Schrödinger and Bohr echoed similar intuitions about the unity of existence.
Over time, many philosophical approaches, traditions, and interpretive schools have arisen from such inquiry, each offering unique perspectives. The Forum will:
Focus on universal approaches and traditions and examine their teachings,
Foster comparative studies, and
Explore the practical benefits to society from such thinking,
through scholarly studies, dialogue, and debate also promoting accessibility to all qualified seekers. Additionally, the Forum will explore how these reflections can enrich life, education, and even technology.
Location: NCS 120 (New Computer Science), Engineering Dr, Stony Brook, NY 11794.
The program is available at: https://www.vedantaforum.org/
Join C4E for an interactive workshop with Dr. Raju Rajan, founder of ReWild Long Island, exploring how artificial intelligence can support community-led land stewardship.
ReWild Long Island advances hands-on ecological restoration across Long Island through native planting, organic land care, water protection, composting, and waste reduction.
Date & Time: Wednesday, November 4 | 12:30 PM - 1:50 PM
Location: Wang Center, Room 301
Three-Part Agenda Breakdown:
- The Vision: ReWild's AI Tool
- The Community: Shaping the Tool Together
- The Standards: Applying Responsible AI Frameworks
Speaker: Raju Rajan is a technologist with a strong communitarian ethic. Since obtaining a PhD in Communication Networks at the University of Wisconsin, Madison, he has enjoyed a long career as researcher and consultant. His entrepreneurial acumen has led him to found two IT start-ups as well as a number of community groups aimed at organizing people for systemic change.
Raju is one of the founders of ReWild Long Island and currently serves as Board President. He is works with Long Island Together, a progressive collective that organizes around education, immigration and social change.
An avid gardener and amateur tree-enthusiast, Raju also owns and manages Sharadavanam, a small agroforest farm in Southern India dedicated to rewilding and permaculture.
Raju resides in Port Washington, NY with wife Sonia Arora, an educator & community organizer, and son Kabeera Singh, in college.
Please register using this form to join the discussion.
Location: Colorado Convention Center
This virtual presentation series is designed to inform the Stony Brook University research community about the Research Funding Landscape of key topic areas. Our Strategic Research Initiatives team will provide insight into the rapidly shifting funding environment using policy briefs, budgetary priorities, and relevant legislation. We will highlight federal and state priorities in the current and upcoming years to help Stony Brook researchers develop strategies for pursuing funding in a rapidly shifting environment. This series is moderated by Mónica Bugallo, Interim Vice President for Research & Innovation.
Join us for the third in the series, focused on the artificial intelligence landscape:
Translating the Funding Landscape for Stony Brook Researchers: Artificial Intelligence
Presented by Catherine Chen, Ph.D., Research Development Associate
Faculty Respondent: Assistant Professor Nav Nidhi Rajput, Department of Materials Science and Chemical Engineering
Wednesday, April 22, 2026 at 2 pm to 3 pm