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19 results on '"Xuan-Hua Xu"'

15. THE IMPACT ANALYSIS ON GROUP CONSENSUS FOR EMERGENCY DECISION-MAKING OF LARGE-SCALE PROJECTS: AN EXTREME RISK PREFERENCE PERSPECTIVE.

Author

Jing Cao, Xuan-hua Xu, Fei Dai, and Bingsheng Liu

Subjects
PROJECT management, GROUP decision making, GOLD mining, BIG data, COMPUTER simulation
Abstract

Reaching high-consensus of decision-making in a short period of time is crucial in an event of emergency during large-scale projects. However, the pressure of time and complex risk preferences of decision-making members make it difficult for high-consistency decision making in real projects. In order to study the influence of extreme preference members on group consensus in emergency decision-making of large-scale projects, this article takes the Tan Jian-shan Gold Mine expansion project in China as an example and takes viewpoint dynamics theory, group decision theory and opinion leader theory as research methods. Then the risk preference influence model, the risk preference similarity model and the risk preference evolution model are constructed to analyze the case data. From the case data and model analysis in the perspective of risk preference, we can see the structure of decision-making members in large-scale infrastructure projects formed by two types of decision makers: extreme preference members and non-extreme preference members. Finally, through big data simulation, we find that the acceptance degree, the influence of duration and other parameters will affect the power of extreme preference members, and further will influence the consensus time. The influence of extreme preference members on group consensus is positively, negatively or even reversely affected in an event of emergency during large-scale projects. This study plays a certain reference in leadership of specific groups on group consensus in large-scale projects and provides a feasible method for risk decision-making in the emergency event of large-scale projects. [ABSTRACT FROM AUTHOR]

Published
2018

16. Research on a Service-Oriented Approach to Groupware Design

Author

Yong-feng Fan, Zhi-yang Chen, and Xuan-hua Xu

Subjects
Collaborative software, Engineering, Service (systems architecture), InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI), business.industry, End user, InformationSystems_INFORMATIONSYSTEMSAPPLICATIONS, InformationSystems_MODELSANDPRINCIPLES, Software, Systems analysis, GSM, Human–computer interaction, Computer-supported cooperative work, business, Reference model
Abstract

A service-oriented approach to design groupware is proposed, focusing on the behavior a groupware application has to provide to co-operating people. The approach allows groupware designers, as well as end users, to select and combine the groupware behavior that matches a collaborative setting. For these different target groups, the approach identifies two distinct levels of granularity to select and compose groupware behavior. These are described on two levels, the elements each level consists of, as well as the relations between the elements. The result is described in a reference model for groupware. The service-oriented approach stimulates groupware designers to capitalize on the behavior, i.e., the service a groupware application has to provide to support collaboration, before switching to implementation details. The SmartGroup groupware reference model is built to give an abstract description of the behavior groupware which has to provide to support collaborating people, in terms of groupware services and the relations between these services.

Published
2008

17. Some new operation rules and a new ranking method for interval-valued intuitionistic linguistic numbers.

Author

Pei Wang, Xuan-hua Xu, Jian-qiang Wang, and Chen-guang Cai

Subjects
FUZZY sets, DECISION making, AGGREGATION operators, NUMERICAL analysis, ARITHMETIC
Abstract

An interval-valued intuitionistic linguistic set (IVILS) is introduced as an extension of both a linguistic term set and an interval-valued intuitionistic fuzzy set. However, the arithmetic operations and comparison methods of IVILS exist some limitations, which may result in information loss and distortion. To avoid this problem, the arithmetic operations are improved and a new comparison method based on a possibility degree is developed. Then, several arithmetic aggregation operators are proposed to aggregate interval-valued intuitionistic linguistic numbers. Moreover, a multi-criteria group decision-making (MCDM) approach based on the newaggregation operators is presented. Finally, the validity and effectiveness of the proposed method are confirmed by a comparable example. [ABSTRACT FROM AUTHOR]

Published
2017
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