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Events for the 3rd week of May
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PhD Thesis Proposal - Christina Shin
Tue, May 13, 2025 @ 11:00 AM - 12:30 PM
Thomas Lord Department of Computer Science
University Calendar
Title: Harnessing Vehicular 3D Primitives for Networked Scene Operation and Manipulation
Date and Time: Tuesday, May 13th, 2025 | 11am-12:30pm
Location: GCS 402C
Committee Members: Ramesh Govindan (Advisor), Laurent Itti, Harsha V. Madhyastha, Antonio Ortega, Barath Raghavan
Abstract: This proposal explores a cloud-centric framework for managing 3D data as a networked and shared resource in vehicular systems. Fueled by 3D sensors like LiDARs, 3D data enables new ways of perceiving and interacting with the physical world with high spatial fidelity. With the rise of vehicular communication, 3D data can now be streamed, fused, and interpreted beyond local on-board devices enabling new forms of collaborative scene understanding and immersive content delivery.
The proposal introduces two systems: RECAP, which reconstructs traffic scenes by aggregating 3D data from moving vehicles, and CIP, which performs collaborative perception using multiple infrastructure sensors. These works demonstrate how cloud processing can support real-time, accurate, and scalable 3D scene operations. Looking ahead, the proposed system MARS aims to deliver 3D video to vehicles for immersive passenger experiences, expanding the use of 3D data beyond machine perception to human-centered applications.
Location: Ginsburg Hall (GCS) - 402C
Audiences: Everyone Is Invited
Contact: Christina Shin
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 - Paul Chiou
Tue, May 13, 2025 @ 12:00 PM - 02:00 PM
Thomas Lord Department of Computer Science
University Calendar
Title: Automated Detection of Keyboard Accessibility Issues in Web Applications
Date and Time: Tuesday, May 13th, 2025. 12:00 PM - 2:00 PM
Location: Ginsburg Hall (GCS) Floor L5 - Room 502C
Committee Members: William G.J. Halfond (Chair), Nenad Medvidovic, Mukund Raghothaman, Gisele Ragusa, and Chao Wang
Abstract: The internet has become an important part of our daily lives, enabling us to complete everyday and essential tasks online. For the 15% of the global population with disabilities, accessing the internet is critical and can provide access to resources that would otherwise be unavailable. Many people with different disabilities rely on the keyboard interface to access the internet; however, studies found that web applications today largely remain inaccessible to keyboard users. Testing keyboard accessibility is a labor-intensive task currently done manually by skilled practitioners. In my research, I used program analysis techniques to automate the keyboard accessibility testing process to alleviate the manual effort involved. I developed a novel approach to automatically detect keyboard accessibility issues that negatively affect disabled users' ability to navigate web pages' user interface. The approach implements a dynamic crawler to build a model that captures a web page's interactivity from a keyboard user's perspective. The approach then analyzes the model to identify the inaccessible behaviors per accessibility guidelines. Finally, I conducted evaluations to show the accuracy of the approach in detecting keyboard accessibility issues in real-world web applications.Location: Ginsburg Hall (GCS) - 502C
Audiences: Everyone Is Invited
Contact: Paul Chiou
Event Link: https://usc.zoom.us/j/94969307418?pwd=tEEvSPznMZgr7DBEvP4T5vREfBCYD0.1
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 - Hsien-Te Kao
Tue, May 13, 2025 @ 02:00 PM - 04:00 PM
Thomas Lord Department of Computer Science
University Calendar
Title: Cold Start Prediction in Personalizd Health
Date and Time: Tuesday, May 13th, 2025 | 2:00p - 4:00p
Location: GCS 202C
Committee Members: Emilio Ferrara (Chair), Kristina Lerman, Maryam M. Shanechi
Abstract: Mobile health (mHealth) has transformed healthcare delivery by using mobile technologies, wearable sensors, and machine learning to expand access, especially for populations facing geographic, economic, or clinical barriers. By enabling passive and continuous data collection, mHealth systems support early detection, real-time prediction, and proactive management of a wide range of health conditions through sensor-driven machine learning. Personalized mHealth extends these capabilities by integrating individual-level modeling and multi-source health records to improve model performance and support deeper understanding of individual health in their life contexts. Despite this progress, real-world deployment remains constrained by user reluctance, privacy concerns, and strict regulations that severely limit the availability of labeled individual health data. This dissertation presents a personalized mHealth framework designed to achieve mHealth predictions without health labels, addressing the cold-start problem. The work identifies key temporal segments that most influence model performance, introduces a cognitive appraisal-based similarity metric linking individuals through physiological signals and health labels, and demonstrates that five labels are sufficient for assigning users into their appraisal cohorts. It further shows that promising mHealth predictions can be achieved under cold-start conditions and uncovers how sociodemographic factors are associated with latent physiological and health patterns. The research contributes to foundational advances in theory-driven, label-efficient modeling for individualized health prediction. It also supports the development of practical mHealth systems capable of improving everyday health management beyond clinical settings.Location: Ginsburg Hall (GCS) - 202C
Audiences: Everyone Is Invited
Contact: Hsien-Te Kao
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. -
Alfred E.Mann Department of Biomedical Engineering - Seminar series
Tue, May 13, 2025 @ 03:00 PM - 04:00 PM
Alfred E. Mann Department of Biomedical Engineering
Conferences, Lectures, & Seminars
Speaker: Chwee Teck Lim, NUS Society Chair Professor National University of Singapore, Singapore
Talk Title: From Cells to Tissues: Collective Dynamics of Multicellular Assemblies
Abstract: Collective multicellular migration plays a vital role in processes such as embryonic development, wound healing, epithelial maintenance, and cancer metastasis. Unlike isolated cells, cell cohorts exhibit coordinated behaviors influenced by their physical and geometrical environments. Understanding these collective dynamics is essential not only for advancing fundamental biology, but also for engineering applications involving living systems. In this talk, I will present our recent works on the migration of epithelial cell sheets under well-defined mechanical and geometrical constraints. Using custom-designed platforms, we investigate how cells migrate across both flat and curved substrates, including microtubes that mimic physiologically relevant topographies. These studies reveal how mechanical features such as confinement and curvature affect collective migration patterns, including alignment, force generation, and directional persistence. Our findings contribute to a deeper understanding of how multicellular systems respond to external cues and have important implications for the design of biohybrid systems—integrated platforms that combine living cells with engineered components. Such insights can inform the development of biomaterials and scaffolds that promote desired cell behaviors, enhancing outcomes in tissue engineering, regenerative medicine, and biomedical device design. This work bridges cell biology and engineering, offering new directions for building adaptive, multiscale living systems.
Biography: Professor Chwee Teck Lim is the NUSS Chair Professor of Biomedical Engineering and Director of the Institute for Health Innovation and Technology at the National University of Singapore. He is also the Founding Director of the Singapore Health Technologies Consortium, a national initiative. He conducts research in human disease mechanobiology and develops innovative medical technologies for healthcare applications. Prof Lim has co-authored over 500 journal articles and delivered over 530 invited talks. He is also a serial entrepreneur having cofounded six startups with one IPO in 2018. Prof Lim is globally recognized for his distinguished achievements by the over 100 research awards and honors including the Nature Lifetime Achievement Award for Mentoring in Science, Highly Cited Researcher, Asia’s Most Influential Scientist Award, ASEAN Outstanding Engineering Achievement Award, Asian Scientists 100, Credit Suisse Technopreneur of the Year Award, Wall Street Journal Asian Innovation Award and the President's Technology Award. He is also an Elected Fellow of 9 academies including the UK Royal Society, US National Academy of Inventors, IUPESM, IAMBE, AIMBE, ASEAN Academy of Engineering and Technology, Singapore National Academy of Science and Academy of Engineering, Singapore.
Host: Peter Yingxiao Wang- Chair of Alfred E. Mann Department of Biomedical Engineering
Location: Corwin D. Denney Research Center (DRB) - 145
Audiences: Everyone Is Invited
Contact: Carla Stanard
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 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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