Sökning: "opinion dynamics"

Visar resultat 1 - 5 av 21 avhandlingar innehållade orden opinion dynamics.

  1. 1. Interacting particle systems for opinion dynamics: the Deffuant model and some generalizations

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Timo Hirscher; Göteborgs universitet.; Gothenburg University.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Deffuant model; bounded confidence; opinion dynamics; sociophysics; consensus formation; general opinion space; percolation; pumpless water transport.;

    Sammanfattning : In the field of sociophysics, concepts and techniques taken from statistical physics are used to model and investigate some social and political behavior of a large group of humans: their social network is given by a simple graph and neighboring individuals meet and interact in pairs or small groups. Although most of the established models feature rather simple microscopic interaction rules, the macroscopic long-time behavior of the collective often eludes an analytical treatment due to the complexity, which stems from the interaction of the large system as a whole. LÄS MER

  2. 2. Self-organization and Intervention of Nonlinear Multi-agent Systems

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Yuecheng Yang; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multi-agent system; linear system; nonlinear system; opinion dynamics; crowd dynamics; leader-follower based model; optimal control; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Sammanfattning : This dissertation concerns the self-organization behaviors in different types of multi-agent systems, and possible ways to apply interventions on top ofthat to achieve certain goals. A bounded confidence opinion dynamics modelis considered for the first two papers. LÄS MER

  3. 3. Consensus formation in the Deffuant model

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Timo Hirscher; Göteborgs universitet.; Gothenburg University.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Deffuant model; consensus formation; opinion dynamics; sociophysics; vector-valued opinions; percolation;

    Sammanfattning : This thesis deals with a mathematical model used in the context of social interactionin large groups, introduced by Deffuant et al. in 2000. Each individualholds an opinion and shares it with others in random pairwise encounters. LÄS MER

  4. 4. Optical Spectroscopy on Correlated Electron Materials

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Johan Bielecki; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dynamics; optical spectroscopy; colossal magnetoresistance; magnetism; transition metal oxides; high temperature superconductivity;

    Sammanfattning : Strongly correlated materials poses a great challenge to our microscopic understanding of matter, mainly due to the inability of perturbative methods to predict the properties of such materials. This inability stems from strong correlations between electronic, lattice and spin degrees of freedom, leading to a variety of complex and exotic phenomena such as (unconventional) superconductivity, metal-insulator transitions, non-Fermi liquid behavior and colossal magnetoresistance. LÄS MER

  5. 5. Essays on Energy and Climate Policy – Green Certificates, Emissions Trading and Electricity Prices

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Anna Widerberg; Göteborgs universitet.; Gothenburg University.; [2011]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Attitudes; Carbon Dioxide; Carbon Intensity; Climate Change; Electricity; Electricity Prices; Emissions Trading; Emission Allowances; Environment; Fairness; GARCH models; Lyapunov Exponents; Market Structure; Personal Carbon Allowances; Public Opinion; Reconstructed Dynamics; Stability; Tradable Energy Quotas; Tradable Green Certificates; Volatility;

    Sammanfattning : Paper I: An Electricity Trading System with Tradable Green Certificates and CO₂-emission Allowances Combinations of various policy instruments to deal with the threat of climate change are used throughout the world. The aim of this article is to investigate an electricity market with two different policy instruments, Tradable Green Certificates (TGCs) and CO₂ emission allowances (an Emission Trading System, ETS). LÄS MER