2022 IEEE International Conference on Data Science and Information System 978-1-6654-9801-2/22/$31.00 ©2022 IEEE HDVis: An Interactive Heart Disease Analysis Through Visualization System Md. Maidul Islam Computer Science & Engineering City University Dhaka, Bangladesh rummanmaidul13@gmail.com Tanzina Nasrin Tania Computer Science & Engineering City University Dhaka, Bangladesh tanzinatania17@gmail.com Sharmin Akter Computer Science & Engineering City University Dhaka, Bangladesh sharmin.cse051@gmail.com Abstract—Heart disease is a disorder in which blood arteries get clogged and the heart ceases to beat. According to several research, this disorder has overtaken cancer as such top cause of death. The fact that anomalies can only be noticed and acknowledged at the end of the process is alarming. It is, however, treatable if the sickness is detected early. The purpose of this study is to develop an interactive visual way (Vis) to analyze heart disease (HD) and its components. First, the data on heart illness was analyzed using a case study method. Second, we look at how user-centered technology may help us address these issues, and we create a Vis called "HDVis" to analyze and display raw data as visualizations like graphs, and a variety more interaction options. This aids in the extraction of important data as well as the portrayal of that data clearly and understandably. Furthermore, we emphasize several crucial findings of this research that might benefit the inquiry of the healthcare community. To test our solution, we conducted 20- person user research. By allowing iterative study and adjustment of the material on such a platform with multiple points of view, the HDVis technology enhances the workflow of visual interpretation. The findings indicate that perhaps the medical community should concentrate too much on establishing proper legislative measures to reduce the incidence of HD. Keywords—Analytical visualization, Interactive Visual System, Visualization, Heart Disease, Qualitative approach, Machine learning. I. INTRODUCTION A malady is an extremely unusual condition that impacts one or more sections of a person's body. Different types of sickness are rising day by day as a result of lifestyle and feudalistic factors. Heart disease is perhaps the most prevalent of these illnesses, and its consequences are considerably more devastating even than the others [13]. An illness that impacts the heart and blood vessels is known as heart disease. It has a significant long-term disability. This illness is extremely dangerous. In the last several decades, Heart disease is becoming one of the leading causes of mortality worldwide. The World Health Organization (WHO) claims heart disease kills 17.7 million people each year [14]. Heart disease is a common and serious ailment that people face, accounting for 80 percent of all fatalities in the country. By 2030, this is anticipated that 25 million people will die of heart disease. Coronary heart disease was responsible for an estimated 7.2 million fatalities [15]. In India, heart disease is currently the top cause of death, posing a considerable danger to both men and women. According to the Indian Heart Association (IHA), four individuals die of heart disease in India per minute, with the majority of casualties will be between the ages of 30 and 50. One-fourth of all heart failure mortality is attributed to those below the age of 40. In India, nine hundred persons under the age of 30 die every day from various cardiac problems [18]. Heart disease is thought to be caused by several factors. The diagnosis of heart disease would be difficult because of the certain high prevalence of diabetes, high blood pressure, excessive triglycerides, improper pulse rate, and several other problems. More people die of heart disease after their first heart attack than for any other reason. Consequently, various challenges in the areas of breast cancer, emphysema, the ventricle, and heart attacks have already been addressed. Increased blood viscosity is a major risk factor for cardiovascular disease. Blood's very viscous composition prevents it from flowing freely, causing blood flow resistance [16]. Heart disease is on the rise as a result of our contemporary lifestyle. Our way of living had a significant influence on our health, resulting in heart disease and other health issues [17]. As a result, assessing heart illness is a difficult process. Even back then, various researchers tried several methods to predict heart disease development. Traditional methodologies, on the other hand, are restricted in their capacity to evaluate such a big quantity of data, but sophisticated technologies like visual analytics may help anticipate cardiac disease and pinpoint the most important aspects. Over examining the system, the majority of these studies chose pattern recognition or a deep learning-based technique [11]. Although much study is being done to diagnose heart illness utilizing more advanced technology, we're also looking towards a more advanced technique that uses an intuitive graphical dashboard to show the best way to evaluate the key parts of heart disease. As a result, this research is critical because it allows for the detection of heart disease and significant risk factors. As a consequence, to solve the constraints noted above, we created HDVis, an interactive visual system (Vis) for understanding cardiac illness. The visualization approach is being used to provide a more complete solution, assisting end-users in assessing heart problems and identifying critical components that are substantially linked with heart disease. To accomplish so, we employed a qualitative research method and learn more about the factors that influence heart disorders (see Figure 1). We were inspired to suggest HDVis, which may depict the important HD determinants, after watching the rising number of heart patients and past studies on heart disease. HDVis depicts a variety of HD relationships, including cholesterol- maximum heart connection, sex, FBS, EXANG, CP, ST Slope, and so on. Furthermore, HDVis will aid in the identification of the most important and high-impact elements in the diagnosis of heart disease. As a result, we want to achieve the following research goals: • Assessing the impact of sex and age on heart disease and comprehending current approaches. • Recognizing the role of FBS in the observation of cardiac disease. • When dealing with HD, ascertain the analytical result of ST Slope, age, and EXANG, CP.