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    • CIS Seminar: “Diffusion Models in Computer Vision”

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    Denoising diffusion models represent a recent emerging topic in computer vision, demonstrating impressive results in generative modeling. A diffusion model is a deep generative model that is based on two stages, a forward diffusion stage and a reverse diffusion stage. In the forward diffusion stage, the input data is gradually perturbed over several steps by […]

    • CBE Doctoral Dissertation: “Understanding and Controlling Polymer-Porous Solid Interactions for Catalytic Recycling of Polymers” (Tian Ren)

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    Berger Auditorium (Room 13), Skirkanich Hall 210 South 33rd Street, Philadelphia, PA, United States

    Abstract: Understanding and controlling polymer-solid interactions is critical for optimizing the catalytic processes involved in polymer upcycling. In this Ph.D. thesis, I explored the intricacies of polymer behavior in nanoporous materials by monitoring the capillary infiltration dynamics of polystyrene (PS) and polyethylene (PE) into random packings of silica nanoparticles. To test the effect of surface […]

    PRECISE Seminar: Protecting Health Care & Cyberphysical Systems – Wicked Bizarre Semiconductor Physics of Sensor Security

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    Levine 307 3330 Walnut Street, Philadelphia, PA, United States

    Medical devices, healthcare delivery, and other cyber-physical systems depend on sensors to make safety-critical, automated decisions. My research lab investigates the problem of how to protect cyber-physical systems from adversaries who can maliciously control sensor output by subverting its semiconductor physics. Finding principled, systematic solutions is extremely important to give consumers confidence in innovative medical […]

    Fall 2023 GRASP on Robotics: Nancy Amato, University of Illinois at Urbana-Champaign, “Sampling-Based Task and Motion Planning: From Robotic Manipulators to Intelligent CAD to Analyzing Proteins”

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    This is a hybrid event with in-person attendance in Wu and Chen and virtual attendance on Zoom. ABSTRACT Task and motion planning has application in robotics, animation, virtual prototyping and training, and even for seemingly unrelated tasks such as evaluating architectural plans or simulating protein motions. Surprisingly, sampling-based methods have proven effective on problems from all […]

    BE Doctoral Dissertation: “Piezo1 regulation of muscle stem cell heterogeneity and function and skeletal muscle generation” (Nuoying Ma)

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    CRB Auditorium 415 Curie Boulevard, Philadelphia, PA, United States

    The Department of Bioengineering at the University of Pennsylvania and Dr. Foteini Mourkioti are pleased to announce the Doctoral Dissertation Defense of Nuoying Ma. Title: Piezo1 regulation of muscle stem cell heterogeneity and function and skeletal muscle generation. Date: Monday, December 4, 2023 Time: 9:30AM Location: CRB Austrian Auditorium Zoom link: https://us06web.zoom.us/j/81956870491?pwd=Q3GuaOdgeYeTAdMFzHuYVYsvBR24nb.1 The public is welcome […]

    MSE Thesis Defense: “Grain Boundary Structural Responses to Dislocation Loop Absorption”

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    zoom email johnruss@seas.upenn.edu for the link

    This talk aims to describe GB responses to absorption of dislocation loops, as part of increasing understanding of component phenomena of radiation damage in materials. The context of radiation damage in materials and the broader importance of understanding related material behavior are summarized, as well as some background on grain boundary structure and defects, and […]

    MEAM Seminar: “Computational Design of Origami and Compliant Robots”

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    Soft and compliant robots provide new opportunities for machines that are flexible, adaptable, safe, and robust. Origami-inspired engineering enables custom robots to be designed and fabricated within days, or even hours. These robots are capable of executing a variety of shape-changing and dynamical tasks by taking advantage of their folded shape and programmable mechanics. In […]

    CIS Grace Hopper Distinguished Lecture: “AGI is Coming… Is HCI Ready?”

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    We are at a transformational junction in computing, in the midst of an explosion in capabilities of foundational AI models that may soon match or exceed typical human abilities for a wide variety of cognitive tasks, a milestone often termed Artificial General Intelligence (AGI). Achieving AGI (or even closely approaching it) will transform computing, with […]

    Fall 2023 GRASP Seminar: Shangzhe Wu, Stanford University, “Learning 3D Fauna and Flora in the Wild”

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    Raisler Lounge (Room 225), Towne Building 220 South 33rd Street, Philadelphia, PA, United States

    This is a hybrid event with in-person attendance in Raisler Lounge and virtual attendance on Zoom. ABSTRACT Nature presents a captivating confluence of diversity and similarity. In order to make sense of our visual experiences in the world, humans as well as other natural intelligences are innately adept at recognizing the underlying intrinsic patterns, by […]

    ASSET Seminar: “Robust Machine Learning with Foundation Models” (Aditi Raghunathan, Carnegie Mellon University)

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    Levine 307 3330 Walnut Street, Philadelphia, PA, United States

    ABSTRACT: In recent years, foundation models—large pretrained models that can be adapted for a wide range of tasks—have achieved state-of-the-art performance on a variety of tasks. While the pretrained models are trained on broad data, the adaptation (or fine-tuning) process is often performed on limited data. As a result, the challenges of distribution shift, where […]

    Fall 2023 GRASP SFI: Ge Yang, NSF Institute of AI and Fundamental Interactions and MIT CSAIL, “Feature Fields for Robotics: Language-Grounded Perception and Mapping at Multiple Scales”

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    Levine 307 3330 Walnut Street, Philadelphia, PA, United States

    This is a hybrid event with in-person attendance in Levine 307 and virtual attendance on Zoom. ABSTRACT What kind of representation do robots need in order to be as generally capable as humans in handling unseen scenarios? Recent work in vision and vision-language foundation models has become quite good at telling what is in a scene, but they do […]

    CBE Seminar: “Fabrication and Long-term Reliability of High Efficiency Monocrystalline Silicon Solar Cells” (Agarwal, Colorado School of Mines)

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    Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

    Global energy demand will continue to increase, and the ability of fossil fuels to meet these demands is limited due to the associated climate change concerns. In response to these concerns, new energy installations are increasingly based on renewable energy resources such as wind and solar. To further develop solar energy as a renewable energy […]