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Events for April 20, 2023
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CS Colloquium: Alvaro Velasquez (DARPA) - Neuro-Symbolic Transfer and Optimization
Thu, Apr 20, 2023 @ 11:00 AM - 12:00 PM
Thomas Lord Department of Computer Science
Conferences, Lectures, & Seminars
Speaker: Alvaro Velasquez, DARPA
Talk Title: Neuro-Symbolic Transfer and Optimization
Series: CS Colloquium
Abstract: Neuro-symbolic artificial intelligence (NSAI) has experienced a renaissance and gained much traction in recent years as a potential "third wave" of AI to follow the tremendously successful second wave underpinned by statistical deep learning. NSAI seeks the integration of neural learning systems and formal symbolic reasoning for more efficient, robust, and explainable AI. This integration has been successful in classification and reinforcement learning, among other areas, but its application to transfer learning and combinatorial optimization remains largely unexplored. In this talk, we will cover recent advancements for the integration of symbolic structures in transferring knowledge between agents in the context of reinforcement learning and planning for sequential decision-making. We will also explore the concept of dataless neural networks as a framework for integrating combinatorial optimization problems and learning models. We conclude with a vision for these areas and the technical challenges that follow.
This lecture satisfies requirements for CSCI 591: Research Colloquium
Biography: Alvaro Velasquez is a program manager in the Innovation Information Office (I2O) of the Defense Advanced Research Projects Agency (DARPA), where he currently leads programs on neuro-symbolic AI. Before that, Alvaro oversaw the machine intelligence portfolio of investments for the Information Directorate of the Air Force Research Laboratory (AFRL). Alvaro received his PhD in Computer Science from the University of Central Florida in 2018 and is a recipient of the distinguished paper award from AAAI, best paper and patent awards from AFRL, the National Science Foundation Graduate Research Fellowship Program (NSF GRFP) award, the University of Central Florida 30 Under 30 award. He has authored over 60 papers and two patents and serves as Associate Editor of the IEEE Transactions on Artificial Intelligence. His research has been funded by the Air Force Office of Scientific Research.
Host: Jyo Deshmukh
Location: Olin Hall of Engineering (OHE) - 132
Audiences: Everyone Is Invited
Contact: Assistant to CS chair
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PhD Thesis Defense - Naghmeh Zamani
Thu, Apr 20, 2023 @ 11:00 AM - 01:00 PM
Thomas Lord Department of Computer Science
University Calendar
PhD Thesis Defense - Naghmeh Zamani
Title: Perception and Haptic Interface Design for Rendering Hardness and Stiffness
Committee: Heather Culbertson, Jernej Barbic, Somil Bansal
Abstract: In this talk, I will discuss the challenge of accurately rendering the sensations of hardness and stiffness in haptic applications, which is a critical problem for applications such as medical simulation that require accurate virtual hardness and stiffness replication. The first part of the talk will present a set of experiments to investigate human tactile perception sensitivity in tool-mediated systems. The second part will explore a new method for rendering hard objects using an encountered-type haptic display and augmented reality. The talk will evaluate how changing the hardness of the end-effector affects the user's perception of the interaction and proposes a dynamic end-effector for a more accurate and realistic simulation of hardness and stiffness. Furthermore, I will discuss the investigation of the underlying events on the skin during the interaction between a bare finger and the environment. The results suggest that the spectral content of vibration feedback is important mechanical information for surface hardness discrimination and natural material identification. The talk will provide insights and solutions to improve the accuracy and realism of haptic simulations for applications that require the perception of hardness and stiffness in virtual objects
Location: Charles Lee Powell Hall (PHE) - 325
Audiences: Everyone Is Invited
Contact: Melissa Ochoa
