Sökning: "true value"

Visar resultat 1 - 5 av 466 uppsatser innehållade orden true value.

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

   Master-uppsats, Lunds universitet/Matematisk statistik

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

   Sammanfattning : 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. LÄS MER

3. 2. Risky Business: Quantitative Risk Assessments as Enabling Devices in Cybersecurity

   Magister-uppsats, Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

   Författare :Colette Alexander; [2024]
   Nyckelord :Quantitative risk assessment; cybersecurity; enabling device; Technology and Engineering;

   Sammanfattning : Quantitative risk assessment (QRA) is a growing practice in the cybersecurity field. This paper examines QRA the use in various industries and the problems with its use. The focus of the qualitative research is to understand why cybersecurity organizations might want to use QRA even if it produces untrue and potentially problematic results. LÄS MER

4. 3. Karakterisering av en mikrosensorsnål för mätning av syrehalt och konduktivitet

   Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Nanoteknologi och funktionella material

   Författare :Gustav Raittila; [2024]
   Nyckelord :Akupunkturnål; konduktivitetsmätning; medicintekniskprodukt; mikrosensor; syremätning;

   Sammanfattning : This report focuses on the characterization of an acupuncture needle microsensor, designed tomeasure the conductivity and oxygen saturation of tissues in the body, in particular musculartissues. The device is intended to help the practitioner localize and treat sources of chronicneuromuscular pain in patients. LÄS MER

5. 4. Ferdinand, the Unpredictable Bull : Cash Flow Distribution Behavior During U.S. Recessions - An Event Time Analysis

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

   Författare :Erik Gunnarsson; Tom Mueffelmann; [2023]
   Nyckelord :Business Cycles; Event Time Study; Predictability of the Price-Dividend Ratio; Aggregate Dividends; Net Repurchases;

   Sammanfattning : The paper employs an event study approach to investigate the behavior of aggregate cash flow distributions and stock prices in the U.S. stock market around recessions. Aggregate prices anticipate low aggregate dividend and economic growth until adjusting for the diverse time measurement methodologies. LÄS MER

7. 5. Predicting user churn using temporal information : Early detection of churning users with machine learning using log-level data from a MedTech application

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

   Författare :Love Marcus; [2023]
   Nyckelord :User churn; Customer attrition; Artificial neural networks; Log-level analysis; Random forests; Decision trees; Användarbortfall; Kundbortfall; Artificiella neurala nätverk; logganalys; Slumpskogar; Beslutsträd;

   Sammanfattning : User retention is a critical aspect of any business or service. Churn is the continuous loss of active users. A low churn rate enables companies to focus more resources on providing better services in contrast to recruiting new users. LÄS MER