Dissertation > Excellent graduate degree dissertation topics show

Research on the Influence of Group Preference on Performance in Dynamic Group Decision-making

Author: ZuoMin
Tutor: YangLei
School: South China University of Technology
Course: Industrial Engineering and Management Engineering
Keywords: Dynamic group decision-making Preference Consensus Convergence time
CLC: C934
Type: Master's thesis
Year: 2012
Downloads: 166
Quote: 1
Read: Download Dissertation

Abstract


Dynamic group decision-making is more scientific and democratic than static groupdecision-making, because the former takes the communication among decision-makers intoconsideration. However, it s difficult for all the members to reach a consensus and the processtakes much time during the dynamic group decision-making, going against the decisionperformance seriously. According to some empirical research in psychological field, grouppreference affects the group decision performance. In light of that, this paper will discuss therelation between group preferences and decision performance.Firstly, we review the progress and research method of the theory of groupdecision-making. Because of the low efficiency and poor results in dynamic groupdecision-making, the research problem from the perspective of group preferences is posed.Then we make a comment on the concept, characteristic，progress, its performance andinfluencing factors of dynamic group decision-making. Besides the concept and progress ofpreference and7main preference structures in group decision-making are clearly illustrated.Next we elaborate3important preference forms including discrete, continuous and vectorpreferences from the point of opinion dynamics.On the base of discrete preferences, we investigate the relation between the results anddecision time and the ratio, number and distribution of group preferences, combing with thegroup relationships based on scale-free networks. Simulation experiments show:(1) Theevolution results of group preferences depends on the leading preference in the group. Namely,the higher the scale of one preference is, the more likely the group preference will evolve intothis preference.(2)When the number of group preference is larger, the convergence time islonger. But it is proved that they are not proportional.(3)The agents preferences, whose degreeare relatively large in the network of relationship, will domain in the group in steady state.On the base of continuous preferences，we put forward the preference spectrum. Weinspect how preference spectrum affects decision time and dynamic evolution in groupdecision-making. A cellular automaton model is established, in which every decision-makerchoose interacting objects from von Neumann neighbourhood according his confidence leveland change his preference into the weighted average of all his interacting objects preferences.Simulation experiments show:(1)The range of preference spectrum has an big impact on theevolution results. The larger the range of preference spectrum is, the larger the number ofpreference clusters and the longer the convergence time. When the group preferences achieve stability, the ratio of the length of preference spectrum into confidence level determines thedecision time and the number of preference clusters.(3)Whatever distribution of the initialgroup preferences has, the average group preference equals the expectation of initial grouppreferences.

Related Dissertations

  1. Study on Influence Factors of Overconfidence in Prediction Task,B841
  2. The Research of Inter-Domain Route Flap Damping Algorithm,TP393.02
  3. Research of Web Database Approximate Query Based on Semantic Similarity Computing,TP311.13
  4. The Research of Personalized Categorization Approach for Web Database Query Results,TP311.13
  5. The Effects of Regulatory Focus of Consumers on Time Preference,F224
  6. Research of Distributed Estimation Algorithm Based-on Consensus,TN929.5
  7. Research on Visual Tracking Algorithm Based on SIFT,TP391.41
  8. Consensus in Complex Dynamic Network of Multi-Agent Based on LMI Method,O157.5
  9. The Study on Epipolar Rectification for Assisting in Taking 3D Video Programs,TP391.41
  10. Consensus of Multi-agents Systems,TP18
  11. Study of Multi-objective Optimization Method Based on Evolutionary Algorithm,O221.6
  12. Networked multi-agent system coordination and consistency of control,O231
  13. Consensus Problem of Multi-Agent Systems,O231
  14. The judge explained the criminal justice research,D926.2
  15. A Research of Web Consensus Crisis Management on the Good Governance Perspective,G206
  16. A New Consensus Method for Cluster Ensembles to Improve Clustering Accuracy and Stability,TP311.13
  17. A Study on Quasi-linear Elliptic Equation,O175.25
  18. The Comparative Mapping and Comparative QTL Analysis between Brassica Napus and Brassica Rapa,S634.3
  19. Relevance Theory in the vocabulary of English news headlines interpretation Pragmatic Enrichment,H313
  20. Analysis on "The East China Sea Consensus" and Recommendations of the East China Sea Joint Exploitation,D831.3;D993.5
  21. Value Consensus of a Harmonious Society in the Perspective of People-Oriented Ideology,D61

CLC: > Social Sciences > Management > Decision Sciences
© 2012 www.DissertationTopic.Net  Mobile