Sökning: "Explicit dynamics"

Visar resultat 1 - 5 av 53 uppsatser innehållade orden Explicit dynamics.

  1. 1. A computational model of metapopulation dynamics and organism-mediated nutrient flow

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Amanda Hansson; [2023-08-07]
    Nyckelord :computational model; population dynamics; metapopulation dynamics; nutrient flow; simulation; spatially explicit; individual-based;

    Sammanfattning : The aim of this project was to assess, using in-silico experiments, how different life history char-acteristics, such as age at maturity and dispersal ability of individuals, influence the dynamics of a metapopulation. To achieve this, a novel model of a spatially explicit metapopulation, with organ-ism-mediated nutrient flow between fragmented habitat patches, was implemented by means of computer simulations. LÄS MER

  3. 2. A spatially explicit model of segregation dynamics : Comparing the Schelling and the Sakoda model

    Master-uppsats, Linköpings universitet/Institutet för analytisk sociologi, IAS

    Författare :Philip Öberg; [2023]
    Nyckelord :residential segregation; agent-based modeling ABM ; social simulation; multi-dimensional measurement; multi-scale measurement;

    Sammanfattning : The scientific consensus has for long been that residential segregation is best conceived of as a multidimensional phenomenon that can exist on several geographical scales (Massey & Denton, 1988; Lee et al., 2008; Reardon & O’Sullivan, 2004; Reardon et al., 2008). LÄS MER

  4. 3. Flight to climate: liquidity commonality in brown equities

    Master-uppsats, Stockholms universitet/Företagsekonomiska institutionen

    Författare :Haiping Yu; [2023]
    Nyckelord :ESG; ESG Investing; Climate investing; Liquidity Commonality; Systematic Liquidity Risk;

    Sammanfattning : Emerging ESG studies have established a negative equilibrium correlation between ESG factors and stock returns in an economy predominately influenced by investors with nonpecuniary preference over high ESG credentials. However, little research has delved into a potential systematic liquidity risk phenomenon associated with aggregate trading activities of ESG-motivated investors who share a common nonzero ESG preference component in their utility function. LÄS MER

  5. 4. Interacting futures of the Swedish food system

    Master-uppsats, Stockholms universitet/Stockholm Resilience Centre

    Författare :Hanna Carlsson; [2023]
    Nyckelord :scenarios; scenario modelling; fuzzy cognitive maps; food systems;

    Sammanfattning : Food systems are complex social-ecological systems. Currently, they are the source of large-scale health problems and environmental impacts, and there is widespread agreement that transformative change is needed. Scenarios are useful tools for directing such change, as they provide engaging future visions that work well with complex systems. LÄS MER

  7. 5. On Linear Mode Connectivity up to Permutation of Hidden Neurons in Neural Network : When does Weight Averaging work?

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Adhithyan Kalaivanan; [2023]
    Nyckelord :Mode Connectivity; Representation Learning; Loss Landscape; Network Symmetry; Lägesanslutning; representationsinlärning; förlustlandskap; nätverkssymmetri;

    Sammanfattning : Neural networks trained using gradient-based optimization methods exhibit a surprising phenomenon known as mode connectivity, where two independently trained network weights are not isolated low loss minima in the parameter space. Instead, they can be connected by simple curves along which the loss remains low. LÄS MER