Essays about: "Hierarchical clustering"

Showing result 1 - 5 of 89 essays containing the words Hierarchical clustering.

  1. 1. An Application of Cluster Analysis in Identifying and Evaluating Prognostic Subgroups for Therapy-Related Acute Myeloid Leukemia

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Stefanie Antonilli; [2022]
    Keywords : AML; lymphoma; heterogeneous data; cluster analysis; k-prototypes algorithm;

    Abstract : Treatment for lymphoma with alkylating therapy is known to increase the risk of secondary malignancies such as Acute Myeloid Leukemia (AML), although the risk is not fully understood. This study investigates the characteristics of AML that arise after lymphoma treatment in contrastto AML cases without a prior lymphoma. READ MORE

  2. 2. A treemap-based interactive clustering algorithm

    University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013); Karlstads universitet/Avdelningen för datavetenskap

    Author : Andreas Lindström-Åberg; [2022]
    Keywords : Treemap; Visual analytic; Clustering; Interactive algorithm;

    Abstract : In this thesis, a treemap-based interactive clustering algorithm is implemented and evaluated. The treemap's rectangles present scatterplots of dimensionally reduced renderings of clusters. READ MORE

  3. 3. Comparison of initialization methods of K-means clustering for small data

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Liam Tabibzadeh; [2022]
    Keywords : Statistics; Clustering; K-means; Hierarchical; Initialization method; Simulation; Experiment; Factorial Design; Monte Carlo Simulation; Monte Carlo; Data; Classification; Cluster Analysis; R;

    Abstract : Clustering of observations into groups arises as a fundamental challenge both in academia and industry. Many clustering algorithms exist, and the most widely used clustering algorithm, the K-means, notably suffers from sensitivity to initial allocation of cluster centers. READ MORE

  4. 4. Hierarchical Portfolio Allocation with Community Detection

    University essay from KTH/Matematik (Avd.)

    Author : Kiar Fatah; Taariq Nazar; [2022]
    Keywords : Portfolio Allocation; Hierarchical Clustering; Graph Theory; Community Detection; Modern Portfolio Theory; Portföljallokering; Hierarkisk klustring; Grafteori; Community Detection; Modern Portföljteori;

    Abstract : Traditionally, practitioners use modern portfolio theory to invest optimally. Its appeal lies in its mathematical simplicity and elegance. However, despite its beauty, the theory it is plagued with many problems, which are in combination called the Markowitz curse. READ MORE

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

    University essay from Lunds universitet/Matematisk statistik

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

    Abstract : 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. READ MORE