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Events for May 16, 2025
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Viterbi School Undergraduate Commencement Reception
Fri, May 16, 2025 @ 11:00 AM - 01:00 PM
USC Viterbi School of Engineering
Student Activity
Join us in celebrating your incredible accomplishments and a chance to connect with fellow graduates, faculty, and staff at the Viterbi School Undergraduate Commencement Reception!
Registration is required for all attendees. Graduates may register themselves and up to 10 guests.
Please note: Light refreshments and appetizers will be provided for registered guests. While we are happy to offer celebratory bites and beverages, this is not a full meal, and refreshments will be available on a first-come, first-served basis.
Viterbi Commencement Website
https://viterbi.usc.edu/commencement
Location: Sign into EngageSC to View Location
Audiences:
Contact: Melissa Medeiros
Event Link: https://engage.usc.edu/viterbi/rsvp?id=404216
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
CA DREAMS - Technical Seminar Series
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Fri, May 16, 2025 @ 12:00 PM - 01:00 PM
Information Sciences Institute
Conferences, Lectures, & Seminars
Speaker: Chee Wei Wong, Professor, UCLA
Talk Title: Precision Chip-scale Laser Frequency Microcombs at the Fundamental Limits
Series: CA DREAMS - Technical Seminar Series
Abstract: Chip-scale laser frequency microcombs has achieved equidistant coherent frequency markers over a broad spectrum, advancing frontiers in time-frequency standards, analog-digital conversion, dense communications, qubit spectroscopy, and precision metrology. In this talk we will describe coherent mode-locking in frequency microcombs, verified by interferometric phase-resolved ultrafast spectroscopy at sub-100-attojoule sensitivities. Normal dispersion sub-100-fs mode-locking is observed, supporting by first-principles nonlinear modeling and analytical predictions. Secondly, we will describe the noise limits in full stabilization of frequency microcombs, locking down both the high-frequency repetition rate and one of the comb lines against a reference. Active stabilization improves the long-term stability by six orders of magnitude, reaching a record instrument-limited residual instability of 3.6 mHz per root tau and a tooth-to-tooth relative frequency uncertainty down to 50 mHz and 2.7×10^(−16). Thirdly, we will describe the femtosecond timing jitter metrology of the microcombs at the thermodynamical and quantum noise limits. Self-heterodyne linear interferometer circumvents the amplitude-to-phase noise conversion and improves the shot noise limits. Fourthly, with 1-Hz resolution on our optical 200-THz carriers, measurements of a compact reference laser at sub-10-Hz/root-Hz spectral densities will be described. Our examinations support the modular implementations of field-deployed next-generation frequency metrology, timing clocks and communications.
Biography: Professor Chee Wei Wong examines ultrafast, precision, and quantum measurements in mesoscopic systems. He serves as a faculty member at the University of California and, prior to that, a tenured faculty member at Columbia University. He is elected a member of the National Academy of Inventors and the American Association for the Advancement of Science, and a Fellow of APS, IEEE, OSA, ASME and SPIE. He is a recipient of the DARPA Young Faculty Award, NSF CAREER Award, Google Faculty Award, NIH Early Scientist Trailblazer Award, and 3M Faculty Award among others. He completed his Sc.D. (2003) and M.Sc. (2001) from MIT, and his B.Sc. and B.A. from UC Berkeley in 1999. His work has appeared in more than 430 journals and conferences, including Nature, Science and Phys. Rev. Lett. series. He delivered 135+ plenary and invited talks at universities and industry, published 4 book chapters, and has worked with 65 PhD students and research scientists, about a third are now in their own professorships including full professors in leading universities.
Host: Dr. Steve Crago
More Info: https://www.isi.edu/events/5752/precision-chip-scale-laser-frequency-microcombs-at-the-fundamental-imits/
Webcast: https://usc.zoom.us/j/97017422125?pwd=Dbrt8MNMrmBV3xalKQJcAiNsggFJjJ.1&from=addonWebCast Link: https://usc.zoom.us/j/97017422125?pwd=Dbrt8MNMrmBV3xalKQJcAiNsggFJjJ.1&from=addon
Audiences: Everyone Is Invited
Contact: Amy Kasmir
Event Link: https://www.isi.edu/events/5752/precision-chip-scale-laser-frequency-microcombs-at-the-fundamental-imits/
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Semiconductors and Microelectronics Technology Seminar - Taro Hitosugi, Friday, May 16th at 1:30pm PST in EEB 248
Fri, May 16, 2025 @ 01:30 PM - 02:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Taro Hitosugi, Department of Chemistry, The University of Tokyo
Talk Title: Autonomous experiments for thin films and solid materials
Series: Semiconductors & Microelectronics Technology
Abstract: Autonomous experiments, integrating machine learning and robotics, are revolutionizing materials science research. This approach accelerates the discovery and optimization of novel materials by automating the experimental process and enabling the exploration of vast parameter spaces. We present an autonomous experimental system for thin-film materials research. This system automates all stages of the experimental process, including sample handling, thin-film deposition, optimization of growth conditions, and comprehensive data acquisition (X-ray diffraction, scanning electron microscope, Raman spectroscopy, etc.). By combining robotic control with Bayesian optimization, our system autonomously explores the parameter space and identifies optimal conditions. We demonstrate this approach by synthesizing and maximizing the electrical conductivity of Nb-doped TiO2 thin films. Furthermore, this autonomous system has enabled the discovery of new ionic conductors. This work highlights the potential of autonomous experimentation for accelerating materials science research, particularly for solid-state materials. We are currently developing an autonomous experimental system for synthesizing bulk materials.
Biography: Taro Hitosugi is a Professor of Chemistry at The University of Tokyo. He received his Ph.D. from The University of Tokyo in 1999 and began his career at Sony Corporation. In 2003, he transitioned to academia, holding positions as an Assistant Professor at The University of Tokyo and Associate Professor at Tohoku University before becoming a full professor at the Tokyo Institute of Technology in 2015. He returned to The University of Tokyo in 2022. An expert in solid-state chemistry, thin film, and surface and interface science, Professor Hitosugi's research focuses on materials for electronics and energy applications. His work includes the development of autonomous material synthesis using machine learning and robotics to accelerate materials science research. He has authored more than 200 peer-reviewed publications in leading academic journals. He serves on the editorial advisory board of APL Materials and as an associate editor for Science and Technology of Advanced Materials (STAM). Professor Hitosugi contributes his expertise to the Cabinet Office's "Materials Strategy" and the Science Council of Japan.
Host: Joshua Yang, Chongwu Zhou, Steve Cronin and Wei Wu
More Information: Taro Hitosugi_2024-05-16.pdf
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Marilyn Poplawski
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
PhD Dissertation Defense - Soumya Sanyal
Fri, May 16, 2025 @ 02:00 PM - 04:00 PM
Thomas Lord Department of Computer Science
University Calendar
Title: Demystifying and Improving Large Language Models on Consistent Reasoning
Date and Time: Friday, May 16th, 2025 | 2:00p - 4:00p
Location: GCS 402C
Committee Members: Xiang Ren (Chair), Robin Jia, Morteza Deghani
Abstract: Large Language Models (LLMs) have demonstrated remarkable performance on various language tasks. However, their reasoning processes often lack consistency, a fundamental requirement for trust, reliability, and interpretability. In this talk, I define reasoning consistency as a multi-faceted concept that requires logical coherence, non-contradiction, and robustness to semantic and structural perturbations. My research focuses on three core areas: (1) benchmarking the consistency of LLMs on deductive reasoning tasks, (2) detecting inconsistencies in LLMs' internal reasoning across different language tasks, and (3) developing techniques to enhance the consistency and reliability of LLM reasoning. The findings aim to understand the behavior of LLMs and enhance their reliability in real-world applications where consistent reasoning is critical.Location: Ginsburg Hall (GCS) - 402C
Audiences: Everyone Is Invited
Contact: Somuya Sanyal
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
Viterbi School Masters Commencement Reception
Fri, May 16, 2025 @ 02:30 PM - 04:30 PM
USC Viterbi School of Engineering
Student Activity
Join us in celebrating your incredible accomplishments and a chance to connect with fellow graduates, faculty, and staff at the Viterbi School Masters Commencement Reception!
Registration is required for all attendees. Graduates may register themselves and up to 10 guests.
Please note: Light refreshments and appetizers will be provided for registered guests. While we are happy to offer celebratory bites and beverages, this is not a full meal, and refreshments will be available on a first-come, first-served basis.
Viterbi Commencement Website
https://viterbi.usc.edu/commencement
Location: Sign into EngageSC to View Location
Audiences:
Contact: Melissa Medeiros
Event Link: https://engage.usc.edu/viterbi/rsvp?id=404215
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor.
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