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updated embedding function

pull/50/head
Vladimir Mandic 2020-11-23 08:40:17 -05:00
parent 4b4df95652
commit 1956559f38
18 changed files with 45 additions and 48 deletions
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@ -30,7 +30,7 @@
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{
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{
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"src/age/age.js": {
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src/embedding/embedding.js
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@ -17,14 +17,11 @@ async function load(config) {
function simmilarity(embedding1, embedding2) {
if (embedding1?.length !== embedding2?.length) return 0;
// euclidean distance
const distance = 10 * Math.sqrt(
embedding1
.map((val, i) => (val - embedding2[i]))
.reduce((dist, diff) => dist + (diff ** 2), 0),
);
const confidence = 2 * (0.5 - distance); // double confidence output for bigger differences and round to three decimals
return Math.trunc(1000 * confidence) / 1000;
// general minkowski distance
// euclidean distance is limited case where order is 2
const order = 2;
const distance = 10.0 * ((embedding1.map((val, i) => (val - embedding2[i])).reduce((dist, diff) => dist + (diff ** order), 0) ** (1 / order)));
return (Math.trunc(1000 * (1 - distance)) / 1000);
}
async function predict(image, config) {

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Subproject commit 64516d31f04a2e915c22c0ac2fe9312392d0d9c3
Subproject commit 6a8806585c67dc6709ef244f86ffdd980404b66a