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New Deep Learning Methods for Understanding Human Images2020-08-05

Human analysis is of wide interest in the research community of computer vision and artificial intelligence (AI), such as recognizing human facial identities, expressions and emotions, as well as human behaviours like poses, actions, events, social relationships from images and videos. As humans...

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Physicists propose a second level of quantization for quantum Shannon theory2019-06-03

Information theory, which was developed by Claude Shannon starting in the late 1940s, deals with questions such as how quickly information can be sent over a noisy communications channel. Both the information carriers (e.g., photons) and the channel (e.g., optical fiber cable) are assumed to be...

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Three Recent Publications in Nature Communications (March & April 2019)2019-04-17

The Computer Science Department, led by the quantum information research group and the bioinformatics algorithm lab, has recently published three articles in Nature Communications. Nature Communications is an open access journal that publishes high-quality research from all areas of the natural...

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Quantum memory: making the most of a precious resource2017-07-04

Our current information technology is based on classical bits, basic units of information that can have two states, either 0 or 1. All the information stored into our computers, from emails to photos and videos, is encoded into combinations of millions of zeros and ones. But classical bits, no...

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New Sparsity Models for Image Processing2015-12-04

1. Introduction Many tasks in image processing need to manipulate images in a spatially varying manner. For example, the quality of different image regions may vary (e.g. a dark face over a bright background), and during image enhancement, it is critical to locally enhance important regions (e.g....

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Large-Scale Matching Problems2014-02-21

1 Introduction Matching problems are found in many applications including assigning cars to parking slots, students to schools, customers of a booking service to hotel rooms, police cars to emergency incidents, mobile devices to WiFi routers, applicants to jobs, university applicants to degree...

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Face Sketch Synthesis2013-05-20

Introduction A sketch is a freehand drawing that is often used to graphically demonstrate an image, idea or principle. An experienced visual artist is able to draw a sketch rapidly; however, sketching a complex object or a detailed human face can be difficult and time-consuming for the...

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Distributed Algorithms in Wireless Ad-Hoc Networks2011-12-13

Introduction: Smartphones and smartpads are everywhere. They connect people together and let people surf the Internet anywhere anytime via wireless access points. Research on wireless communication is therefore timely and important. In this project, we consider a special kind of wireless networks –...

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Planar Paneling in Architecture Design2011-03-01

Introduction The use of freeform surfaces is gaining increasing popularity in architecture design, one reason being that curved facades are often more appealing than the commonly found planar walls. After a freeform facade has been designed, the next step is to partition the facade into small...

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De Novo Genome Assembly2010-10-18

Introduction DeoxyriboNucleic Acid (DNA) is a chain of nucleotides that contains genetic information of all known living organisms. There are four kinds of nucleotides, adenine (A), cytosine (C), guanine (G) and thymine (T). Each species in the world can be represented by different DNA sequences, called...

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Uncertain Database Management2010-08-19

by Dr. Reynold Cheng (ckcheng@cs.hku.hk) Introduction In applications such as location-based services, natural habitat monitoring, web data integration, and biometric applications, the values of the underlying data are inherently noisy or imprecise. Consider a location-based application that...

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Secure and Reliable B2B Messaging2010-02-26

Center for E-Commerce Infrastructure Development (CECID, under the auspices of Department of Computer Science) is an R&D center primarily funded by Innovation and Technology Fund (ITF). Since its establishment in 2002, CECID have been awarded 8 research projects with a sum of more than HK$50M...

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Intelligent Internet Surveillance2009-08-17

The World Wide Web provides corporate and individuals a brand new platform for ideas and resources exchange. No one can deny the benefits and convenience that come along. However, the Internet has also fostered a new set of online crimes like copyright infringement. To this end, Center for...

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