Sökning: "graph"

Visar resultat 1 - 5 av 690 uppsatser innehållade ordet graph.

  1. 1. Hierarchical Clustering To Improve Portfolio Tail Risk Characteristics

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Adam Eidenvall; [2021]
    Nyckelord :Hierarchical Clustering; Asset Allocation; Portfolio Construction; Graph Theory; Machine Learning; Risk Parity; Regime Shift; Bootstrapping; Walk Forward; Mathematics and Statistics;

    Sammanfattning : Many agree that estimating portfolio risks has better estimation possibilities, than estimations on returns. Therefore investors attempts to construct better, more efficient riskmanaged portfolios by diversifying portfolios through factors rather than traditional asset classes. LÄS MER

  2. 2. Exploring Construction of a Company Domain-Specific Knowledge Graph from Financial Texts Using Hybrid Information Extraction

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

    Författare :Chun-Heng Jen; [2021]
    Nyckelord :Natural Language Processing; Information Extraction; Named Entity Recognition; Relation Extraction; Knowledge Graph; Naturlig språkbehandling; Informationsextraktion; Namngiven Entitetsigenkänning; Relationsextraktion; Kunskapsgraf;

    Sammanfattning : Companies do not exist in isolation. They are embedded in structural relationships with each other. Mapping a given company’s relationships with other companies in terms of competitors, subsidiaries, suppliers, and customers are key to understanding a company’s major risk factors and opportunities. LÄS MER

  3. 3. Visualization of multi-layered data in node networks

    Master-uppsats, Lunds universitet/Ergonomi och aerosolteknologi

    Författare :Jacob Rosensköld; Magnus Sunesson; [2021]
    Nyckelord :Visualization; Interaction Design; Node networks; Graphs; Technology and Engineering;

    Sammanfattning : Visualization is the discipline of representing information with visual elements. Data structures can benefit from visualization, enabling people deeper understanding of the structures. LÄS MER

  4. 4. Optimisation of autoencoders for prediction of SNPs determining phenotypes in wheat

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningUppsala universitet/Institutionen för informationsteknologi

    Författare :Karthik Nair; [2021]
    Nyckelord :Deep Learning; Machine Learning; Convolutional Neural Networks; Convolutional Variational Autoencoders; Autoencoders; SNP-Phenotype relationships; Genetics; Agricultural Bioinformatics; Neural Networks; Unsupervised Learning;

    Sammanfattning : The increase in demand for food has resulted in increased demand for tools that help streamline plant breeding process in order to create new varieties of crops. Identifying the underlying genetic mechanism of favourable characteristics is essential in order to make the best breeding decisions. LÄS MER

  5. 5. Squaring VEGAS -- Multidimensional Integration Using 2D Correlations

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik

    Författare :Philip Siemund; [2021]
    Nyckelord :statistics; numerical integration; Monte Carlo integration; VEGAS; Physics and Astronomy;

    Sammanfattning : Multidimensional integrals are used in many areas of physics; electrodynamics, quantum mechanics and statistical physics, to name a few. Many integrals can not be solved analytically, but can instead be approximated numerically. VEGAS is a Monte Carlo integration algorithm, which specializes it in approximating multidimensional integrals. LÄS MER