updates

Author: msneubauer

_sources/lectures/UnsupervisedLearningAnomalyDetection.ipynb

@@ -236,7 +236,17 @@
       "source": [
         "The [dataset](http://timeseriesclassification.com/description.php?Dataset=ECG5000) contains 5,000 Time Series examples (obtained with ECG) with 140 timesteps. Each sequence corresponds to a single heartbeat from a single patient with congestive heart failure.\n",
         "\n",
-        "> An electrocardiogram (ECG or EKG) is a test that checks how your heart is functioning by measuring the electrical activity of the heart. With each heart beat, an electrical impulse (or wave) travels through your heart. This wave causes the muscle to squeeze and pump blood from the heart. [Source](https://www.heartandstroke.ca/heart/tests/electrocardiogram)\n",
+        "> An electrocardiogram (ECG or EKG) is a test that checks how your heart is functioning by measuring the electrical activity of the heart. It measures the electrical activity of your heart. It uses small electrodes attached to your skin to detect the tiny electrical signals that control your heartbeat. With each heart beat, an electrical impulse (or wave) travels through your heart. This wave causes the muscle to squeeze and pump blood from the heart. [Source](https://www.heartandstroke.ca/heart/tests/electrocardiogram)\n",
+        "\n",
+        "* ___<span style=\"color:Violet\">What it measures</span>___: An ECG records the electrical impulses that cause your heart to beat, showing how the signals travel through your heart's chambers.\n",
+        "\n",
+        "* ___<span style=\"color:Violet\">How it's done</span>___: During an ECG, electrodes are attached to your chest, arms, and legs using adhesive patches or small suction cups.\n",
+        "\n",
+        "* ___<span style=\"color:Violet\">What it shows</span>___: The ECG produces a graphical representation of your heart's electrical activity, known as an ECG tracing.\n",
+        "\n",
+        "* ___<span style=\"color:Violet\">Why it's used</span>___: ECGs are used to diagnose and monitor various heart conditions, including arrhythmias, coronary artery disease, heart attacks, and heart failure.\n",
+        "\n",
+        "* ___<span style=\"color:Violet\">What it can reveal</span>___: An ECG can help doctors detect changes in heart rate, rhythm, and electrical conduction, which may indicate a heart problem.\n",
         "\n",
         "We have 5 types of hearbeats (classes):\n",
         "\n",