Sökning: "Centrality"

Visar resultat 1 - 5 av 138 uppsatser innehållade ordet Centrality.

  1. 1. Network Connectedness in Financial Markets

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Andrea Marcolini; [2024]
    Nyckelord :Systemic risk modeling; US REITs connectedness; S P 500 connectedness; Returns and realized volatilities prediction;

    Sammanfattning : This paper is a collection of two different theses discussing the prediction of the returns and volatilities of the S&P 500 constituents and of US Real Estate Investment Trusts (REITs) by analyzing their centrality within the financial market network. Both empirical works summarize the relevant financial and network literature, demonstrating how modeling stock connectedness within financial markets makes it possible to create returns and volatility predictors, improving investors' portfolio allocations and achieved investment Sharpe ratios. LÄS MER

  3. 2. Identifying Graph Characteristics in Growing Vascular Networks

    Master-uppsats, Uppsala universitet/Tillämpad beräkningsvetenskap

    Författare :Christopher Finn Plummer; [2024]
    Nyckelord :Anigogenesis; Vascular Networks; Network Science;

    Sammanfattning : One of the ways that a vascular network grows is through the process of angiogenesis, wherebya new blood vessel forms as a branch from an existing vessel towards an area which isstimulating vascular growth. Due to the demands for nutrients and waste transport, growingtumour cells will access the surrounding vascular network by inducing angiogenesis. LÄS MER

  4. 3. An exploration of how the national culture in which a company operates affects the choice of Management Control Systems

    C-uppsats, Handelshögskolan i Stockholm/Institutionen för redovisning och finansiering

    Författare :Selemon Setaregu; Mateo Murra; [2024]
    Nyckelord :National culture; Management control systems;

    Sammanfattning : Throughout this thesis, our research dives into the intricate relationship between national culture and management control systems (MCSs) in multinational corporations. In an increasingly globalized business world, understanding this relationship is pivotal for companies operating across diverse cultural landscapes. LÄS MER

  5. 4. Randomized Diagonal Estimation

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Niclas Joshua Popp; [2023]
    Nyckelord :Diagonal estimation; randomized numerical linear algebra; low-rank approximation; matrix functions; Diagonalestimering; randomiserad numerisk linjär algebra; lågrankad approximation; matrisfunktioner;

    Sammanfattning : Implicit diagonal estimation is a long-standing problem that is concerned with approximating the diagonal of a matrix that can only be accessed through matrix-vector products. It is of interest in various fields of application, such as network science, material science and machine learning. LÄS MER

  7. 5. Exploring the Impact of Centrality Measures on Stock Market Performance in Stockholm Market: A Comparative Study

    Kandidat-uppsats, Mälardalens universitet/Utbildningsvetenskap och Matematik

    Författare :Tarek Hasna; [2023]
    Nyckelord :Centrality measures; Degree centrality; Eigenvector centrality; Betweenness centrality; Closeness centrality;

    Sammanfattning : Centrality measures in network analysis have become a popular measurement tool for identifying coherent nodes within a network. In the context of stock markets, the centrality measure helps to identify key performing ele- ments and strengths for specific stocks and determine their impact on disrupting market value and performance. LÄS MER