Tizian Matschak

• Master of Science
• University of Göttingen

As fundamental changes in information systems drive digitalization, the heavy reliance on computers today significantly increases the risk of fraud. Existing literature promotes machine learning as a potential solution approach for the problem of fraud detection as it is able able to detect patterns in large datasets efficiently. However, there is...

Health insurance claim fraud is a serious problem for the health care industry. As it drives up costs and inefficiency, claim fraud must be effectively detected to provide economic and high-quality healthcare. In this paper, we present a hybrid machine learning approach that was developed, implemented, and evaluated in the context of a prescription...

In recent years, the importance of information security has grown significantly due to the rise of cyber threats and attacks. However, evaluating investments in information security can be challenging, as traditional methods often rely solely on monetary factors and fail to capture the dynamic nature of business processes. This paper introduces a n...

Although digitization is advancing rapidly, a large amount of data processed by companies is in printed format. Technologies such as Optical Character Recognition (OCR) support the transformation of printed text into machine-readable content. However, OCR struggles when data on documents is highly unstructured and includes non-text objects. This, e...

Cyber-attacks can cause severe economic damages to businesses today. Therefore, every company needs to protect its IT systems from such attacks by implementing effective IT security measures. When it comes to deciding on an IT security measure, there is a variety of decision approaches that can offer support on choosing an economically reasonable o...

The increased generation of data has become one of the main drivers of technological innovation in healthcare. This applies in particular to the adoption of Machine Learning models that are used to generate value from the growing available healthcare data. However, the increased processing of sensitive healthcare data comes with challenges in terms...

With an increasing amount of potential IT security breaches, ensuring the resilience of IT infrastructures and information assets is becoming a crucial task for companies today and in the future. When considering an investment, there are several decision-making approaches supporting companies to invest in adequate IT security measures. Providing an...