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• Workshops & Infosessions (2)
• Conferences, Lectures, & Seminars (6)
• University Calendar (3)

Events for the 3^rd week of June

• Jun

  11

  DEN@Viterbi - Online Graduate Engineering Virtual Information Session

  Tue, Jun 11, 2024 @ 12:00 PM - 01:00 PM

  DEN@Viterbi, Viterbi School of Engineering Graduate Admission

  Workshops & Infosessions

  
  

  Join USC Viterbi School of Engineering for a virtual information session via WebEx, providing an introduction to DEN@Viterbi, our top-ranked online delivery system. Discover the 40+ graduate engineering and computer science programs available entirely online. Attendees will have the opportunity to connect directly with USC Viterbi representatives during the session to discuss the admission process, program details, and the benefits of online delivery.

  WebCast Link: https://uscviterbi.webex.com/weblink/register/rbb9d476a6e52c389b11625be33406157

  Audiences: Everyone Is Invited

  Contact: Corporate & Professional Programs

  Event Link: https://uscviterbi.webex.com/weblink/register/rbb9d476a6e52c389b11625be33406157

  

• Jun

  12

  CSC/CommNetS-MHI Seminar: Rebbecca Thien

  

  Wed, Jun 12, 2024 @ 10:30 AM - 11:30 AM

  Ming Hsieh Department of Electrical and Computer Engineering

  Conferences, Lectures, & Seminars

  
  

  Speaker: Dr. Rebbecca Thien, PhD, May 2024 | Australia National University
  
  Talk Title: Physical realizability and coherent LQG control of linear quantum systems
  
  Series: CSC/CommNetS-MHI Seminar Series
  
  Abstract: A linear quantum system is a special class of quantum system whose dynamics are described by the laws of quantum mechanics where quantum mechanics serves as a platform for comprehending and explaining the workings of the universe at the atomic scale. Control problems in the quantum domain are often more challenging compared to their classical counterparts, primarily due to the additional constraints imposed by quantum mechanics. A linear quantum system generally need not correspond to a physically meaningful system unless it satisfies some additional constraints which then a quantum system will be termed as a physically realizable quantum system. One way to implement a linear time-invariant (LTI) system as a physically realizable system is to include additional quantum vacuum noise channels. The presence of quantum vacuum noise channels in the controller places limits on the performance. Hence it is desirable to minimize the number (or effect) of these noises.
  The first part of this talk is to improve current approaches for implementing physically realizable quantum systems. In this context, we present an optimal method to implement a strictly proper LTI system as a physically realizable quantum system. This method focuses on the extent to which the additional quantum noise affects the system output. We also give a necessary and sufficient condition for when a quantum system corresponding to a given LTI controller can be made physically realizable in the presence of both direct feedthrough quantum vacuum noise and additional quantum vacuum noise such that the additional quantum noise does not affect the controller output. Additionally, we give a frequency domain condition to physically realize a given transfer function matrix using only direct feedthrough quantum noise.
  Coherent quantum control is a unique feedback control paradigm with no counterpart in classical control systems. Physical realizability and coherent quantum control are closely related concepts since the condition for a quantum controller to be considered coherent is that the controller must be physically realizable. The second part of this talk considers the quantum equalization problem. We have proposed a method to find a physically realizable suboptimal coherent linear quadratic Gaussian (LQG) controller that minimizes a cost function related to the system equalization error. We have implemented a gradient descent approach in searching for an optimal solution for the quantum equalization problem.
  
  Biography: Rebbecca Thien completed her Bachelor’s (2016) and Master’s (2018) degrees in Mechanical and Aerospace Engineering at Gyeongsang National University, South Korea. She recently completed her PhD in Australian National University in May 2024.
  
  Host: Dr. Edmond Jonckheere | jonckhee@usc.edu
  
  More Info: https://csc.usc.edu/seminars/2024Spring/thien.html
  
  

  More Information: 2024.06.12 CSC Seminar - Rebbecca Thien.pdf

  Location: Hughes Aircraft Electrical Engineering Center (EEB) - EEB 248

  Audiences: Everyone Is Invited

  Contact: Miki Arlen

  Event Link: https://csc.usc.edu/seminars/2024Spring/thien.html

  

• Jun

  13

  PhD Dissertation Defense - ASM Rizvi

  Thu, Jun 13, 2024 @ 01:00 PM - 03:00 PM

  Thomas Lord Department of Computer Science

  University Calendar

  
  

  Title: Mitigating Attacks That Disrupt Online Services Without Changing Existing Protocols  
   
  Date and Time: Thursday, June 13th, 2024: 1:00p - 3:00p  
   
  Location: RTH 114  
   
  Commitee Members: John Heidemann (Chair), Bhaskar Krishnamachari, Harsha V. Madhyastha, Jelena Mirkovic  
   
  Abstract: Service disruption is undesirable in today’s Internet connectivity due to its impacts on enterprise profits, reputation, and user satisfaction. We describe service disruption as any targeted interruptions caused by malicious parties in the regular user-to-service interactions and functionalities that affect service performance and user experience. In this thesis, we propose new methods that tackle service disruptive attacks using measurement and observation without changing existing Internet protocols. Although our methods do not guarantee defense against all the attack types, our example defense systems prove that our methods generally work to handle diverse attacks. To validate our thesis, we demonstrate defense systems against three disruptive attack types. First, we mitigate Distributed Denial-of-Service (DDoS) attacks that target an online service. Second, we handle brute-force password attacks that target the users of a service. Third, we detect malicious routing detours to secure the path from the users to the server. We provide the first public description of DDoS defenses based on anycast and filtering for the network operators. Then, we show the first moving target defense utilizing IPv6 to defeat password attacks. We also demonstrate how regular observation of latency helps cellular users, carriers, and national agencies to find malicious routing detours. As a supplemental outcome, we show the effectiveness of measurements in finding performance issues and ways to improve using existing protocols. These examples show that our idea applies to different network parts, even if we may not mitigate all the attack types.

  Location: Ronald Tutor Hall of Engineering (RTH) - 114

  Audiences: Everyone Is Invited

  Contact: ASM Rizvi