Essays about: "multivariate data"

Showing result 21 - 25 of 410 essays containing the words multivariate data.

1. 21. Robustness Against Non-Normality : Evaluating LDA and QDA in Simulated Settings Using Multivariate Non-Normal Distributions

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Gånheim Viktor; Åslund Isak; [2023]
   Keywords : Classification; Linear Discriminant Analysis; Quadratic Discriminant Analysis; Normality Assumption;

   Abstract : Evaluating classifiers in controlled settings is essential for empirical applications, as extensive knowledge on model-behaviour is needed for accurate predictions. This thesis investigates robustness against non-normality of two prominent classifiers, LDA and QDA. READ MORE

3. 22. Football Trajectory Modeling Using Masked Autoencoders : Using Masked Autoencoder for Anomaly Detection and Correction for Football Trajectories

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Sandra Tor; [2023]
   Keywords : Machine Learning; Autoencoders; Masked autoencoders; Time series; Trajectory modeling; Time series modeling; Anomaly detection; Anomaly correction; Football; Maskininlärning; Autoencoders; Maskerade autoencoders; Tidsserie; Banmodellering; Tidsseriemodellering; Avvikelsedetektering; Avvikelsekorrigering; Fotboll;

   Abstract : Football trajectory modeling is a powerful tool for predicting and evaluating the movement of a football and its dynamics. Masked autoencoders are scalable self-supervised learners used for representation learning of partially observable data. READ MORE

4. 23. An empirical study of the impact of data dimensionality on the performance of change point detection algorithms

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Léo Noharet; [2023]
   Keywords : Time series segmentation; Change point detection; Multivariate time series; Data dimensionality; Tidsserie-segmentering; Förändringspunkts detektering; Mulitvariabla tidsserier; Data dimentionalitet;

   Abstract : When a system is monitored over time, changes can be discovered in the time series of monitored variables. Change Point Detection (CPD) aims at finding the time point where a change occurs in the monitored system. READ MORE

5. 24. ESG CONTRACTING: GREED OR GREEN? A GLOBAL STUDY OF OWNERSHIP INFLUENCE AND VALUE CREATION IN REGARD TO ESG CONTRACTING

   University essay from Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

   Author : Rebecka Mannerford; Adèle Sveger; [2023]
   Keywords : ESG contracting; Activist ownership; Institutional ownership; Corporate governance; Agency theory;

   Abstract : This study investigates institutional and activist ownership pressure for implementing ESG contracting, and the potential value creation that follows in terms of financial and ESG performance. Using data from 11,521 publicly listed firms worldwide in the period 2007-2022, this longitudinal study employs a multivariate regression model in order to understand whether certain shareholders push for ESG contracting, and whether ESG contracting mitigates or reinforces agency costs. READ MORE

6. 25. Finding Causal Relationships Among Metrics In A Cloud-Native Environment

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Suresh Rishi Nandan; [2023]
   Keywords : Causality; Causal Discovery; Bayesian Network; Conditional Independence; Partial Correlation; Ensemble Causal Discovery; Anomaly Detection; Causal Graphs; Causality; Causal Discovery; Bayesian Network; Conditional Indeberoende; partiell korrelation; Ensemble Causal Discovery; Anomali Detektion; kausala grafer;

   Abstract : Automatic Root Cause Analysis (RCA) systems aim to streamline the process of identifying the underlying cause of software failures in complex cloud-native environments. These systems employ graph-like structures to represent causal relationships between different components of a software application. READ MORE