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International Conference on virtual reality and visualization (ICVRV)

作者： Xun Luo Wei Wu Claudia Zúñiga-Cañón Carlos Lozano-Garzón Pervasive and Visual Computing Group Tianjin University of Technology Tianjin China State Key Lab on Virtual Reality Technology and Systems Beihang University Beijing China Research Group COMBA R&D Universidad Santiago de Cali Cali Colombia Systems and Computing Engineering Department Universidad de Los Andes Bogota Colombia

During the past couple years, several Chinese and Latin American research communities have established and strengthened notable collaborative ties, in the fields of urban computing, virtual reality and visualization. These endeavors culminate in 2016 as the Sino-Latin America Birds of a Feather (SLA-BOF) event at the International Conference on virtual reality and visualization (ICVRV). In this event chairs' report, we present overview of the history, status quo and ongoing initiatives about such collaborations. We encourage more institutions to join this international joint effort.

关键词： virtual reality Collaboration visualization Urban areas Solid modeling Education Sensors

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Research on Assessment of Farm Product Cold Chain Quality and Safety Based on Intuitionistic Triangular Fuzzy TOPSIS

Research on Assessment of Farm Product Cold Chain Quality an...

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2015 International Conference on Management Science,Education Technology,Arts,Social Science and Economics(MSETASSE 2015)

作者： Wenke Wang Weiqian Dong Hongyu Wang Hui Wu Wenyue Zhang Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Sichuan Normal University School of business Sichuan Normal University

ISBN: (纸本)9781510817449

The aim of this paper is to compare the safety and quality among farm product cold chain companies. Equipment and facility, logistics environment, personnel quality and process are used to establish the comprehensive index system. Then, because of the uncertainty and fuzziness, a risk prioritization model of farm product cold chain quality and safety based on intuitionistic triangular fuzzy TOPSIS was constructed. A case example was presented to demonstrate the practicality of proposed approach.

关键词： Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) Intuitionistic triangular fuzzy Farm product cold chain assessment of quality and safety safety agricultural products Consumer safety cold chain Indexing systems Triangular Fuzzy

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Analysis of an M(λ1,λ2)/M/1/WV queue with controlled vacation interruption and variable arrival rate

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Mathematical and Computational Applications 2015年第1期20卷 39-49页

作者： Wu, Wenqing Tang, Yinghui Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Sichuan Normal University ChengduSichuan China School of Mathematics and Software Science Sichuan Normal University ChengduSichuan China

This paper studies a Markovian queue with multiple working vacations and controlled vacation interruption. If there are at least N customers waiting upon completion of a service at a lower rate, the vacation is interrupted and the server returns to the system to resume the normal working level. Otherwise, the server continues the vacation until the system is non-empty after a vacation ends or there are at least N customers after a service ends. Moreover, the variable arrival rate of the customers is taken into account. Under such assumptions, by using the quasi-birth-and-death process, the matrix-geometric method and the difference equation theory, the steady-state queue length distribution along with various performance measures are derived. Additionally, under a certain cost structure, the optimal threshold N∗ that minimizes the long-run expected cost function per unit time is numerically determined. © 2015, Association for Scientific Research. All rights reserved.

关键词： Cost functions

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A method of carried object detection based on key posture of silhouette

A method of carried object detection based on key posture of...

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International Conference on Natural Computation (ICNC)

作者： Han Su Wenjie Wang College of Computer Science Sichuan Normal University Sichuan Chengdu Key Lab of Virtual Reality and Visual Computing of Sichuan Sichuan Normal University Sichuan Chengdu Chengdu University Sichuan Chengdu

In this paper, we present a novel carried object detection method based on the key postures which is extracted through locating the key point on the gait cycle curve. The key postures which are conducive to detect the carried object are the silhouettes in sequence. Different carried type is corresponding to the different key postures. For each key posture, the deviation between the reference axis and the center line and the variance of the lower-limb width are adopted to represent features. We test our method on two databases. The results show that the method based on key postures can not only reduce the computation, but also represent features very accurately, and our method is effective.

关键词： Feature extraction Foot Shape Legged locomotion Object detection Solid modeling virtual reality

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Operation Design of Customer Relationship Management System

Operation Design of Customer Relationship Management System

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International Symposium on Computational Intelligence and Design, ISCID

作者： Cong Li Li Ma Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Sichuan Normal University Chengdu China Library Sichuan Normal University Chengdu China

ISBN: (纸本)9781467395885

With the rapid development of modern economy, which regards satisfying customer demands as its basis, enterprises urgently need to operate effective Customer Relationship Management (CRM) to gain their market and increase their profit or competitive power. To provide enterprises managers with valuable views on customer management, in this paper we discussed on operation design of CRM, and proposed six operation tactics of CRM, including "senior enterprise leaders support CRM application", "integrate CRM strategies with corporate culture", "customer-oriented management system", "train staff to learn CRM knowledge", "enhance data quality of CRM system" and "protect customer information privacy". The proposed tactics will be helpful for practical operation of customer management system effectively.

关键词： Privacy Training Planning Customer services Companies

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Analysis of the Revolutionary Game Model Between Tourism Attraction and Tourism Enterprises

Analysis of the Revolutionary Game Model Between Tourism Att...

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2015 International Conference on Management Science,Education Technology,Arts,Social Science and Economics(MSETASSE 2015)

作者： Wenke Wang Ruixue Wang Shuangyu Yang Linxin Peng Bin Yan Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Sichuan Normal University School of business Sichuan Normal University School of Manufacturing Science and Engineering Sichuan University School of Foreign Language Sichuan Normal University

ISBN: (纸本)9781510817449

As a thriving travel business, disabled accessible tourism has been getting more and more attention from related stakeholders in the market since the introduction of its concept and its development in China. Tourism attraction and tourism enterprises are acknowledged as the stakeholders who the disabled tourism, if taken as a product, contacts with directly while being served and sold. Therefore, this paper constructs an evolutionary game model between tourism enterprises and tourism attraction and analyzes the evolutionary stable strategy and key influence factors of the two parties when developing the disabled travel business. The research results show that to develop the disabled tourism needs the cooperation of tourism attraction and enterprises. The enterprises should increase their communication with tourism attraction to decrease unnecessary lose and simultaneously optimize their service quality while managing to strengthen business integration. The tourism attraction should construct barrier-free facilities in accordance with government's policy, improve their profession of the disabled tourism, and intensify the propaganda of this business.

关键词： Disabled accessible tourism Tourism enterprise Tourist attraction Evolutionary game

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Instability of Standing Wave for the Klein–Gordon–Hartree Equation

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Acta Mathematica Sinica,English Series 2014年第5期30卷 861-871页

作者： Xiao Guang LI Jian ZHANG Yong Hong WU Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Sichuan Normal University College of Mathematics and Software Science Sichuan Normal University Department of Mathematics and Statistics Curtin University of Technology

The instability property of the standing wave uω（t, x） = eiωtφ（x） for the Klein–Gordon– Hartree equation is investigated. For the case N≥3 and w2 〈2/N＋4-γ,it is shown that the standing wave eiwtφ（x） is... 详细信息

关键词： Klein–Gordon–Hartree equation standing waves strong instability

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A compression sensing sampling scheme based on the golden section principle

A compression sensing sampling scheme based on the golden se...

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International Conference on Machine Tool Technology and Mechatronics Engineering, ICMTTME 2014

作者： Li, Xiao-Ning Wu, Zhang-Hong Xing, Hao-Yang School of Computer Science Sichuan Normal University Chengdu China Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Chengdu China School of Physic Science and Technology Sichuan University Chengdu China

ISBN: (纸本)9783038352464

In classic radial sampling scheme, angle intervals between adjacent straight sampling lines are the same. And so the coherence between the sampling matrix and the sparse matrix is high. Many pseudo-shadows will occur on the reconstructed image. For this problem, we put forward a novel sampling scheme in which the scan lines are placed in the manner of golden section angle interval. In the resulting sampling matrix, the scan lines scatter randomly on the whole. Experimental results demonstrate that the algorithm proposed in this paper has lower correlation coefficient between sampling matrix and sparse matrix than classic radial sampling scheme and random radial sampling scheme. Image can be accurately reconstructed by collecting less data than the other two schemes. © (2014) Trans Tech Publications, Switzerland.

关键词： Image reconstruction

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CBRM: Computational Reputation Model for C2C e-Commerce Platform

CBRM: Computational Reputation Model for C2C e-Commerce Plat...

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International Symposium on Computational Intelligence and Design, ISCID

作者： Xueqin Li Cong Li Li Ma College of Computer Science Sichuan Normal University Chengdu China Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Chengdu China Library Sichuan Normal University Chengdu China

ISBN: (纸本)9781479970063

Online shopping has become an important and popular way of life. With the rapid C2C platform development, the credit problem in online shopping was being discussed. Serious loss of credit will leads to bad online business environment. However, till now lots of researchers just focus on seller reputation model to solve credit problem, thus buyer reputation model is seldom being considered. To solve the above problem, we proposed a Computational Buyer Reputation Model for C2C e-Commerce platform, i.e. CBRM. Five buyer reputation indicators, including transactions amount, seller ratings, buyer operations, chargeback ratio and real name authentication, were integrated into CBRM. By using AHP to distribute various indicator weights, we can obtain numeric value of buyer reputation. Therefore, these values can be used for sellers to choose appropriate buyers to deal with. Experiment results showed the efficiency and effectiveness of CBRM.

关键词： Mathematical model Computational modeling Solid modeling Authentication Numerical models visualization virtual reality

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Business process reengineering for better sale of china lubricant enterprises

Business process reengineering for better sale of china lubr...

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5th International Conference on Computational Intelligence and Communication Networks, CICN 2013

作者： Li, Cong Feng, Lin Ma, Li Visual Computing and Virtual Reality Key Laboratory of Sichuan Province Sichuan Normal University Chengdu China Library Sichuan Normal University Chengdu China

ISBN: (纸本)9780768550695

With the rapid development of new economy, China lubricant enterprises urgently need to implement effective Customer Relationship Management (CRM) to win the market. By constructing and applying CRM, lubricant enterprises can keep their old customers and find potential customers, so the profit and core competitive power of lubricant enterprises can all be increased. In this paper we optimized the traditional sales process of China lubricant enterprises, designed a new business process reengineering (BPR) and built a pyramid model of CRM application tactics. The new BPR can be helpful for effectively CRM implementation of China lubricant enterprises. © 2013 IEEE.

关键词： Sales

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