Computer Vision News - March 2020

2 Summary Code with Us 2 restecg: Resting electrocardiographic measurement (0-2: normal - showing probable or definite left ventricular hypertrophy by Estes' criteria) thalach: Maximum heart rate reached exang: Exercise induced angina (0: no) oldpeak: ST depression induced by exercise relative to rest ('ST' relates to positions on the ECG plot) slope: the slope of the peak exercise ST segment (1-3: upsloping - downsloping) ca: The number of major vessels (0-3) thal: Thalassemia is a blood disorder (3-7: normal - reversable defect) target: Heart disease (0: no) Diagnosis Heart disease diagnosis is based on a combination of clinical data, signs and results coming from various tests, ranging from electrocardiograms (ECG) and cardiac computerized tomography (CT) scans, to blood tests and exercise stress tests. Information from the British Heart Foundation on heart disease risk factors lists - amongst others - the following: high cholesterol, high blood pressure, diabetes, weight, family history and smoking. While factors difficult to affect are increasing age, male gender and heredity. Thalassemia is one of the variables in this dataset, which is hereditary. Major factors that can be modified are smoking, high cholesterol, high blood pressure, physical inactivity, being overweight and the presence of diabetes, as well as stress, alcohol and poor diet. Using those hypotheses, the factors will stand out as the most important given that the model has some predictive ability. Based on the above, it’s now easy to change the categorical variables to more meaningful names, a starting point shown as follows: