122 Result(s)
within
Yu. Li
Computer Science
English
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Chapter and Conference Paper
A New Genetic Algorithm for the Optimal Communication Spanning Tree Problem
This paper proposes a new genetic algorithm to solve the Optimal Communication Spanning Tree problem. The proposed algorithm works on a tree chromosome without intermediate encoding and decoding, and uses cros...
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Chapter and Conference Paper
An Effective Implementation of a Direct Spanning Tree Representation in GAs
This paper presents an effective implementation based on predecessor vectors of a genetic algorithm using a direct tree representation. The main operations associated with crossovers and mutations can be achie...
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Chapter and Conference Paper
A Two-Level Search Strategy for Packing Unequal Circles into a Circle Container
We propose a two-level search strategy to solve a two dimensional circle packing problem. At the first level, a good enough packing algorithm called A1.0 uses a simple heuristic to select the next circle to be pa...
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Chapter and Conference Paper
Human Pacman: A Mobile Entertainment System with Ubiquitous Computing and Tangible Interaction over a Wide Outdoor Area
Human Pacman is an interactive role-playing game that envisions to bring the computer gaming experience to a new level of emotional and sensory gratification by setting the real world as a playground. This is ...
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Chapter
Biometrics for Security in E-Commerce
The advance of technology is always inspired by the practical applications, and the emergence of automatic biometrics technology is rooted in the requirement for real-world security applications. Whether this ...
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Article
Human Pacman: a mobile, wide-area entertainment system based on physical, social, and ubiquitous computing
Human Pacman is a novel interactive entertainment system that ventures to embed the natural physical world seamlessly with a fantasy virtual playground by capitalizing on mobile computing, wireless LAN, ubiqui...
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Chapter and Conference Paper
Data Segmentation of Stereo Images with Complicated Background
With the development of computer science, there is an increasing demand on the object recognition in stereo images. As a binocular image pair contains larger and more complicated information than a monocular i...
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Article
Fiducial Marker Based on Projective Invariant for Augmented Reality
Fiducial marker based Augmented Reality has many applications. So far the inner pattern of the fiducial marker is always used to encode the markers. Thus a large portion of the fiducial marker image is used fo...
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Chapter and Conference Paper
Enumerating Unlabeled and Root Labeled Trees for Causal Model Acquisition
To specify a Bayes net (BN), a conditional probability table (CPT), often of an effect conditioned on its n causes, needs to be assessed for each node. It generally has the complexity exponential on n. The non-im...
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Chapter and Conference Paper
Towards Effective Elicitation of NIN-AND Tree Causal Models
To specify a Bayes net (BN), a conditional probability table (CPT), often of an effect conditioned on its n causes, needs assessed for each node. It generally has the complexity exponential on n. Noisy-OR reduces...
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Chapter and Conference Paper
Event Recognition from News Webpages through Latent Ingredients Extraction
We investigate the novel problem of event recognition from news webpages. “Events” are basic text units containing news elements. We observe that a news article is always constituted by more than one event, na...
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Chapter and Conference Paper
The Application of Disturbance Observer to Propulsion Control of Sub-mini Underwater Robot
In this paper, the propulsive motility characteristics and the corresponding motion equations of a self-designed sub-mini underwater robot were analyzed. And the disturbance observer was used in propulsive mot...
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Chapter and Conference Paper
DigestJoin: Expediting Joins on Solid-State Drives
This demonstration presents a recently proposed join algorithm called DigestJoin. Optimized for solid-state drives (SSDs), DigestJoin aims at reducing intermediate join results and hence expensive write operation...
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Article
Dynamic memory paravirtualization transparent to guest OS
This paper introduces dynamic paravirtualization, which imitates paravirtualization and aims at reducing VM exits of full virtualization with hardware support. In dynamic paravirtualization, VMM (virtual machi...
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Article
Flash-Optimized B+-Tree
With the rapid increasing capacity of flash memory, flash-aware indexing techniques are highly desirable for flash devices. The unique features of flash memory, such as the erase-before-write constraint and th...
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Article
Combined invariants to blur and rotation using Zernike moment descriptors
Moment invariants that are not affected by geometric transform have been utilized as pattern features in a number of applications. But in most cases, images are processed subject to blur degradations. The trad...
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Chapter and Conference Paper
A Petri Net-Based Software Process Model for Develo** Process-Oriented Information Systems
Aiming at increasing flexibility, efficiency, effectiveness, and transparency of information processing and resource deployment in organizations to ensure customer satisfaction and high quality of products and...
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Chapter and Conference Paper
Research of Ecological Landscape Assessment Systems of Road Based on GIS and ES
With rapid development of China’s road construction, road construction and its surrounding ecological landscape is not harmonious. The evaluation of the analysis, recovery and development is increasingly impor...
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Chapter and Conference Paper
Libraries in a Digital Frontier: Preserving Chinese Canadian Cultural Heritage
As a three-year community-based research project at the University of British Columbia, Chinese Canadian Stories: Uncommon Histories from a Common Past is government grant-funded project by the Community Historic...
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Chapter and Conference Paper
Study of Adaptive Cone Taper Measuring Device
A kind of simple practical adaptive quantitative detection taper cone measuring devices is developed in this paper, which can resolve the qualitative measurement which cannot obtain concrete error problem, and...
