Essays about: "imputation"

Showing result 6 - 10 of 57 essays containing the word imputation.

  1. 6. An Empirical Investigation of The Effect of Proxy Response and The Merits of Its Remedial Measures

    University essay from Högskolan Dalarna/Institutionen för information och teknik

    Author : Charles Edward Okon; Randi Kalanika Assalaarachchi; [2023]
    Keywords : missing data; proxy response; missingness mechanism; error-in-variable; logistic regression; Monte-Carlo simulation; missing at random; complete case analysis; proxy substitution; multiple imputation; inverse probability treatment weighting;

    Abstract : In the event of missing data, substitution of data from proxy sources are usually considered a very useful alternative when available to avoid the problem of missingness. Nonetheless, research has also shown that this approach often induces “response bias”. READ MORE

  2. 7. Exploratory analysis of immunological responses in wild and laboratory mice

    University essay from Högskolan i Skövde/Institutionen för biovetenskap

    Author : Ilia Alekseev; [2023]
    Keywords : ;

    Abstract : The use of mice as a model organism in biomedical research is widespread due to their similarities with humans in anatomy and physiology. However, the genetic isolation of inbred strains from natural populations raises concerns about the reliability of these models. READ MORE

  3. 8. Forecasting post COVID-19 : How to improve forecasting models’ performance when training data has been aected by exceptional events like COVID-19 pandemic?

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

    Author : Lina Shrebati; [2023]
    Keywords : Time Series; Forecasting; COVID-19; Data processing; Optimal transport; Tidsserier; Prognoser; COVID-19; Databehandling; Optimal transport;

    Abstract : Almost every company around the world were aected by the COVID-19 crisis and the government measures that were taken to slow the spread of the virus. The impact the crisis had on the economy caused the appearance of anomalies in the data collected by companies : such as abnormal trend, seasonality etc. READ MORE

  4. 9. Improving Missing Data Imputation using Generative Adversarial Network-based Methods

    University essay from Lunds universitet/Matematisk statistik

    Author : Hanna Anderberg; Sofia Wadell; [2023]
    Keywords : Missing Values; Data Imputation; Generative Adversarial Network; GAIN; CTGAN; Mathematics and Statistics;

    Abstract : In a modern context, organizations increasingly rely on data analysis and the importance of data quality have accordingly become even more crucial. In this context, missing values pose a significant challenge compromising the utility of the data. READ MORE

  5. 10. Predicting Chronic Kidney Disease using a multimodal Machine Learning approach

    University essay from Stockholms universitet/Institutionen för data- och systemvetenskap

    Author : Aakruti Mishra; Navaneeth Puthiyandi; [2023]
    Keywords : Chronic kidney disease; Multimodal approach; ROCKET; Random Forest; XGBoost; MIMIC-III database; Data imbalance; Temporal and static modalities; Soft voting;

    Abstract : Chronic Kidney Disease (CKD) is a common and dangerous health condition that requires early detection and treatment to be effective. Current diagnostic methods are time-consuming and expensive. In this research, we hope to construct a predictive model for CKD utilizing a combination of time series and static variables for early detection of CKD. READ MORE