Essays about: "missing values"

Showing result 1 - 5 of 157 essays containing the words missing values.

  1. 1. Predicting True Sepsis and Culture-positive Sepsis in Intensive Care Unit with Machine Learning Techniques

    University essay from Lunds universitet/Matematisk statistik

    Author : Zeyuan Wu; [2024]
    Keywords : Machine Learning; Diagnosis of Sepsis; XGBoost; Logistic Regression; Mathematics and Statistics;

    Abstract : Sepsis, a serious medical condition often leading to patients requiring intensive care, has prompted numerous scientists to employ mathematical techniques to aid in its diagnosis. This thesis uses logistic regression and a machine learning technique, XGBoost, to predict true sepsis (as opposed to sepsis mimics) and culture-positive sepsis (among true sepsis) in critical care using blood test results, physiological measurements and other patient characteristics. READ MORE

  3. 2. Real-time Energy Performance Tracking

    University essay from Högskolan i Skövde/Institutionen för informationsteknologi

    Author : Huu Thien Nguyen; [2023]
    Keywords : ;

    Abstract : Energy performance tracking is becoming increasingly significant in the building industry as a means of improving energy efficiency. This thesis provides answers to the questions related to improving energy tracking system in general, including its potentials, problems and challenges. READ MORE

  4. 3. Identifying Threat Factors of Vulnerabilities in Ethereum Smart Contracts

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi

    Author : Mah Noor; Syeda Hina Murad; [2023]
    Keywords : Smart contract; Blockchain; Ethereum; attacks; security vulnerabilities; security audits;

    Abstract : Ethereum is one of the top blockchain platforms that represents this second generation of blockchain technology. However, the security vulnerabilities associated with smart contracts pose significant risks to confidentiality, integrity, and availability of applications supported by Ethereum. READ MORE

  5. 4. Weather and Firm Production in Europe

    University essay from Handelshögskolan i Stockholm/Institutionen för nationalekonomi

    Author : Hanna Johansson; Leo Ljunggren; [2023]
    Keywords : Climate change; Weather; Firm Production; Europe; Nomenclature of Territorial Units for Statistics;

    Abstract : With exceeding risks of climate change damages, the economical implications of changes in weather patterns for firm production have become increasingly important. Up until now, a European setting and more time relevant data have been missing in current research analyzing such implications, which is where this thesis resolves such shortcomings. READ MORE

  6. 5. MODELING INPUT VARIABLE AGE IN SEPSIS PREDICTION USING TREE-BASED MODELS

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Oscar Wastesson; [2023]
    Keywords : Machine learning; decision trees; sepsis; classification;

    Abstract : Last observation carried forward (LOCF) is a common imputation method, regularly used for clinical data. It is based on the principle that the most recent observation that is known is carried forward to replace missing values. READ MORE