The increased use of automated systems in the public sector has led to two types of processes, fully automated decision making and humans making decisions assisted by automated decision support systems (ADSS). While having a human in the loop is often motivated by having them act as a “safeguard” for imperfect automated systems, humans themselves are not perfect decision makers. Automation bias, a tendency to agree with the recommendations of automated systems even when they are wrong, is one problem facing humans using ADSS. Mainly found in monitoring tasks such as autopilots, it has also been studied in clinical decision support systems. The aim of this systematic review is to investigate whether automation bias poses a risk for ADSS in the public sector, and to identify possible moderators. Thirteen studies were included. By doing a narrative synthesis of the included studies I found mixed results for the existence of automation bias. While there is a lack of strong evidence for automation bias, even low levels could result in consequences for the public sector as these are decisions that impact citizens' everyday life. A number of moderators are identified and suggestions for system designers are made. / En ökning av automatiserade system inom offentlig sektor har lett till två typer av processer, helt automatiserade beslut och människor som tar beslut stödda av automatiserade beslutsstöd. Att ha en människa i processen är ofta motiverat av att använda dem som ett skydd mot bristfälliga automatiserade system, men människor är i sig själva inte perfekta beslutstagare. Automation bias, en tendens att följa rekommendationer från automatiserade system även när de är inkorrekta, är ett problem för människor som använder automatiserade system. Det har främst studerats i autopiloter, men också i kliniska beslutsstöd. Syftet med denna systematiska litteraturöversikt var att undersöka om automation bias är en risk för automatiserade beslutsstöd i offentlig sektor, och att identifiera möjliga moderatorer. Tretton studier inkluderades. Genom att genomföra en narrativ syntes fann jag blandade slutsatser gällande automation bias. Samtidigt som det finns begränsade starka bevis för automation bias, kan även de nivåerna resultera i konsekvenser för offentlig sektor då de tar beslut som påverkar befolkningens vardag. Ett antal moderatorer identifierades och förslag till systemdesigners presenteras.

Background: Advancements in machine learning (ML) techniques and voice technology offer the potential to harness voice as a new tool for developing decision-support tools in healthcare for the benefit of both healthcare providers and patients. Motivated by technological breakthroughs and the increasing integration of Artificial Intelligence (AI) and Machine Learning (ML) in healthcare, numerous studies aim to investigate the diagnostic potential of ML algorithms in the context of voice-affecting disorders. This thesis focuses on respiratory diseases such as Chronic Obstructive Pulmonary Disease (COPD) and explores the potential of a decision support tool that utilizes voice and ML. This exploration exemplifies the intricate relationship between voice and overall health through the lens of applied health technology (AHT. This interdisciplinary nature of research recognizes the need for accurate and efficient diagnostic tools. Objective: The objectives of this licentiate thesis are twofold. Firstly, a Systematic Literature Review (SLR) thoroughly investigates the current state of ML algorithms in detecting voice-affecting disorders, pinpointing existing gaps and suggesting directions for future research. Secondly, the study focuses on respiratory health, specifically COPD, employing ML techniques with a distinct emphasis on the vowel "A". The aim is to explore hidden information that could potentially be utilized for the binary classification of COPD vs no COPD. The creation of a new Swedish COPD voice classification dataset is anticipated to enhance the experimental and exploratory dimensions of the research. Methods: In order to have a holistic view of a research field, one of the commonly utilized methods is to scan and analyze the literature. Therefore, Paper I followed the methodology of an SLR where existing journal publications were scanned and synthesized to create a holistic view in the realm of ML techniques employed to experiment on voice-affecting disorders. Based on the results from the SLR, Paper II focused on the data collection and experimentation for the binary classification of COPD, which was one of the gaps identified in the first study. Three distinct ML algorithms were investigated on the collected datasets through voice features, which consisted of recordings collected through a mobile application from participants 18 years old and above, and the most utilized performance measures were computed for the best outcome.  Results: The summary of findings from Paper I reveals the dominance of Support Vector Machine (SVM) classifiers in voice disorder research, with Parkinson's Disease and Alzheimer's Disease as the most studied disorders. Gaps in research include underrepresented disorders, limited datasets in terms of number of participants, and a lack of interest in longitudinal studies. Paper II demonstrates promising results in COPD classification using ML and a newly developed dataset, offering insights into potential decision support tools for COPD diagnosis. Conclusion: The studies covered in this dissertation provide a comprehensive literature summary of ML techniques used to support decision-making on voice-affecting disorders for clinical outcomes. The findings contribute to understanding the diagnostic potential of using ML on vocal features and highlight avenues for future research and technology development. Nonetheless, the experiment reveals the potential of employing voice as a digital biomarker for COPD diagnosis using ML.