Subtract duplicate alerts and label whether the remaining signal is useful.

Alert Noise Report

alert_noise.js
const alertCount = 6;
const duplicateCount = 2;
const usefulCount = alertCount - duplicateCount;
let noiseLabel = "focused";

if (usefulCount >= 7) {
    noiseLabel = "noisy";
} else if (duplicateCount >= usefulCount) {
    noiseLabel = "review";
}

console.log(`alerts=${alertCount} useful=${usefulCount} label=${noiseLabel}`);
alert noise Alert noise reports compare duplicate alerts with useful alerts before assigning a label.