Events for
Past Seminars and Events
June 03, 2019
  • Title: Some perspectives on relativistic causality

    Time: 02:00pm 

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

    Speaker(s): Professor Pawel Horodecki

    Remark(s): 

    Professor Pawel Horodecki
    Gdańsk University of Technology
    Poland

     

    Date: June 3, 2019 Monday

    Time: 2:00 - 3:00pm

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

     

    Abstract:

    We shall discuss two perspectives on relativistic causality. The first one is based on discrete systems statistics and shows that minimal assumption on correlation boxes from the perspective of relativistic causality leads to a correlation picture that goes fat beyond standard no-signaling paradigm. The second analysis involves an analysis of dynamics of potential continuous statistics of single system in a quantum-like, linear or not, theory. The main result provides the condition under which such dynamics may be causal.

    About the speaker:

    Pawel Horodecki graduated from Gdańsk University. He is currently Professor and lecturer at Gdańsk University of Technology, Professor and group leader in International Centre for Theory of Quantum Technologies. His research includes contributions to theory of quantum entanglement and quantum communication, including co-discovery of bound entanglement phenomenon and quantum entanglement witnesses. His research interests are quantum information and foundations of quantum physics.

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May 31, 2019
  • Title: Memory effects in quantum metrology

    Time: 02:00pm 

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

    Speaker(s): Yuxiang Yang

    Remark(s): 

    Yuxiang Yang
    Institute for Theoretical Physics ETH
    Zurich

     

    Date: May 31, 2019 Friday

    Time: 2:00 - 3:00pm

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

     

    Abstract:

    Quantum metrology concerns estimating a parameter from multiple identical uses of a quantum channel. We extend quantum metrology beyond this standard setting and consider estimation of a physical process with quantum memory, here referred to as a parametrized quantum comb. We present a theoretic framework of metrology of quantum combs, and derive a general upper bound of the comb quantum Fisher information. The bound can be operationally interpreted as the quantum Fisher information of a memoryless channel times a dimensional factor. We then show an example where the bound can be attained up to a factor of two. With the example and the bound, we show that memory in quantum sensors plays an even more crucial role in the estimation of combs than in the standard setting of quantum metrology.

    About the speaker:

    Yuxiang Yang is a postdoctoral fellow at the Institute for Theoretical Physics, ETH Zurich. He holds a PhD in Computer Science from The University of Hong Kong and a BS in Physics from Tsinghua University. In 2017 he was awarded a Microsoft Research Asia Fellowship for his work in quantum information theory. His research aims to identify quantum advantages in communication and computation, and to design optimal protocols for the next generation of quantum computing devices

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May 29, 2019
  • Title: The Final of Final Year Project competition

    Time: 02:00pm 

    Venue: CBA, Chow Yei Ching Building, The University of Hong Kong

    Speaker(s): Various

    Remark(s): 

     

    Date: May 29, 2019 Wednesday

    Time: 9:30pm

    Venue: CBA, Chow Yei Ching Building, The University of Hong Kong

     

     

May 24, 2019
  • Title: Quantum Shannon theory with superpositions of trajectories

    Time: 02:00pm 

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

    Speaker(s): Hlér Kristjánsson

    Remark(s): 

    Hlér Kristjánsson
    Department of Computer Science
    University of Oxford

     

    Date: May 24, 2019 Friday

    Time: 2:00 - 3:00pm

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

     

    Abstract:

    Shannon’s theory of information was built on the assumption that the information carriers were classical systems. Its quantum counterpart, quantum Shannon theory, explores the new possibilities arising when the information carriers are quantum systems. Traditionally, quantum Shannon theory has focused on scenarios where the internal state of the information carriers is quantum, while their trajectory is classical. Here we propose a second level of quantisation where both the information and its propagation in spacetime is treated quantum mechanically. The framework is illustrated with a number of examples, showcasing some of the counterintuitive phenomena taking place when information travels simultaneously through multiple transmission lines.

    About the speaker:

    Hlér Kristjánsson is a PhD student at Department of Computer Science, University of Oxford.

    PDF

May 16, 2019
  • Title: Computation of emotions

    Time: 11:00am 

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

    Speaker(s): Prof Peter Robinson

    Remark(s): 

    Date:
    May 16, 2019
    Thursday
    11:00 am

    Venue:
    Room 308 Chow Yei Ching Building
    The University of Hong Kong

    Peter Robinson
    Professor of Computer Technology
    University of Cambridge

    Abstract:
    The importance of emotional expression as part of human communication has been understood since the seventeenth century, and has been explored scientifically since Charles Darwin and others in the nineteenth century. Recent advances in Psychology have greatly improved our understanding of the role of affect in communication, perception, decision-making, attention and memory.

    At the same time, advances in technology mean that it is becoming possible for machines to sense, analyse and express emotions. We can now consider how these advances relate to each other and how they can be brought together to influence future research in perception, attention, learning, memory, communication,decision-making and other applications.

    This talk will survey recent advances in theories of emotion and affect, their embodiment in computational systems, the implications for general communications, and broader applications.The combination of new results in psychology with new techniques of computation on new technologies will enable new applications in commerce, education, entertainment, security, therapy and everydaylife. However, there are important issues of privacy and personal expression that must also be considered.

    About the Speaker:
    Peter Robinson is Professor of Computer Technology at the University of Cambridge, where he works on problems at the boundary between people and computers. This involves investigating new technologies to enhance communication between computers and their users, and new applications to exploit these technologies.

    His recent work has included desk-size projected displays, emotionally intelligent interfaces and applications in semi-autonomous vehicles. This has led to broader explorations of what it means to be human in an age of increasingly human-like machines.

     PDF

April 29, 2019
April 24, 2019
  • Title: Research Postgraduate Studies in Computer Science at HKU

    Time: 03:00pm 

    Venue: Lecture Theatre A, Chow Yei Ching Building, The University of Hong Kong

    Speaker(s): CS Department

    Remark(s): 

    This seminar should be of interest for all HKU students interested in Research Postgraduate studies in Computer Science. The faculty members of HKU CS include many internationally renowned scholars in diverse fields of Computer Science, such as Algorithms, Bioinformatics, Computer Forensics, Information Security, Computer Vision and Graphics, Human-Computer Interaction, Database and Data Mining, Network, Programming Languages, Systems, and Quantum Computing.The Department of Computer Science at HKU offers two research postgraduate degrees: Doctor of Philosophy (PhD) and Master of Philosophy (MPhil). A PhD is a 4-year research degree, whereas an MPhil is a 2 years research Master. In both programs students work with a faculty member from the department in research projects and publish results in top Computer Science venues. There are several fully funded positions for students wishing to pursue a PhD or MPhil at HKU.In this seminar we will give an overview of postgraduate studies at HKU, how to apply for graduate studies at HKU and funding possibilities. Regarding funding, we will introduce several scholarships that are available for Hong Kong and HKU students. In particular we will present HKU’s University Postgraduate Fellowships (UPF), and the Hong Kong PhD Fellowship Scheme (HKPF). We will also introduce the tuition waiver for Local Research Postgraduate (RPg) Students.

    PDF

April 10, 2019
April 08, 2019
  • Title: From Content-Centric Internet to Tactile Internet: Some Thoughts on Future IoT Architecture Design

    Time: 11:00am 

    Venue: Room 308, Chow Yei Ching Building, The University of Hong Kong

    Speaker(s): Prof Zhi-Li Zhang

    Remark(s): 

    Professor Zhi-Li Zhang
    University of Minnesota

    Date:
    April 8, 2019
    Monday
    11:00 am

    Venue:
    CPD-LG.18
    Central Podium
    Centennial Campus
    The University of Hong Kong

    Abstract:

    Recent years have witnessed the proliferation of various mobile and sensor devices, from mobile phones to smart home devices. These mobile and sensor technologies – together with a whole gamut of emerging applications they enable --usher a new era of Internet of Things (IoT) services that will revolutionize the way how we live E and interactwith each other and the physical world. For example, various kinds of (physical or virtual) sensors in the physical and/or cyber worlds have not only allowed us to collect a whole gamut of (spatial-temporal) data, but also afforded us the opportunity to apply advanced data analytics, machine learning algorithms to extract actionable knowledge (or AI),make intelligent decisions in response to events, take actions and effect changes in the physical world, e.g., via remotely controlling and issuing commands to smart (mobile or embedded) devices (i.e., actuators) -- namely, the so-called "Tactile" Internet.Emerging IoT applications and services are putting a strain on today's network architecture, which has primarily served as a giant information repository and distribution platform. The challenges posed by emerging IoT applications and services call for re-thinking and re-architecting of existing networking, compute and storage infrastructures. In this talk, we will put forth some initial thoughts on the challenges and architectural design issues for future IoT networks. Leveraging and building upon the CONIA – content (provider)-oriented, namespace-independent network architecture --that we have advocated and have been developing for multimedia content delivery, we advance a new IoTarchitecture -- referred to as IoTa -- that represents a paradigm shift from content delivery to remotely accessing, controlling or steering real or virtual objects (such as sensors or actuators) in perceived real-time by human operators or machines. The proposed IoTa architecture is application-driven and software-defined}. While it borrowsideas from software-defined networking (SDN) and network function virtualization (NFV), it constitutes a refactoring of the conventional "control-data plane separation" by incorporating and integrating information (including content, control and command) delivery, compute and storage functions in a unifying (network architecture) framework.

    About the Speaker:

    Professor Zhang is McKnight Distinguished University Professor and Qwest Chair Professor at Department of Computer Science & Engineering, University of Minnesota. He received his B.S. degree in Computer Science from Nanjing University, China, and his M.S. and Ph.D.‘ degrees in Computer Science from the University of Massachusetts, Amherst. Dr. Zhang’s research interests lie broadly in computer communication and networks, Internet technology,multimedia and emerging applications. His past research was centered on the analysis, design and development of scalable Internet QoS solutions to support performance-demanding multimedia applications. His current research focuses on building highly scalable, resilient and secure Internet and cyber-physical systems & infrastructures and developing mechanisms to enhance Internet service availability, reliability and security, and on developing next generation, service-oriented, manageable Internet architectures to provide better support for creation, deployment, operations and management of value-added smart services and underlying networks, including mobile, cloud and content delivery services and networks. Dr. Zhang has published more than 150 journal, conference andworkshop papers. Dr. Zhang has received several honors for his research, and he is co-recipient of a number of Best Paper Awards. He is a Fellow of IEEE.

     

    PDF

April 06, 2019
  • Title: HKU Big Data Workshop

    Time: 08:00am 

    Venue: CPD-LG09, Central Podium Centennial Campus, The University of Hong Kong

    Speaker(s): Various

    Remark(s): 

    The Big Data and Artificial Intelligence Workshop (BDAI) will be held in the University of Hong Kong on 6th April, 2019. BDAI hosts international speakers from the areas of Big Data and AI, which are important areas in knowledge and world economy. The main goal of BDAI is to provide a platform to exchange research insights and implementation areas. We hope to offer researchers, professors, and students to share their experiences and participate in open discussions. 

    More Information at BDAI

     

     




Department of Computer Science
Rm 301 Chow Yei Ching Building
The University of Hong Kong
Pokfulam Road, Hong Kong
香港大學計算機科學系
香港薄扶林道香港大學周亦卿樓301室

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