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<div class="controls" tabindex="0">
<form>
<div>
<label for="number1">Multiply number 1: </label>
<input type="text" id="number1" value="0" />
</div>
<div>
<label for="number2">Multiply number 2: </label>
<input type="text" id="number2" value="0" />
</div>
</form>
<p class="result">Result: 0</p>
</div>
<script type="module">
import { pipeline, env } from 'https://cdn.jsdelivr.net/npm/@xenova/[email protected]';
env.allowLocalModels = false;
let pipe = await pipeline('embeddings');
let emb = x => pipe(x, {pooling:'mean', normalize:'true'});
async function createEmbeddings(xs) {
return (await Promise.all(xs.map(emb))).map((x,i) => ({value: xs[i], embeddings: x.data}));
}
function dotp(x, y) {
function dotp_sum(a, b) {
return a + b;
}
function dotp_times(_, i) {
return x[i] * y[i];
}
return x.map(dotp_times).reduce((a, v) => a + v, 0);
}
function cosineSimilarity(A,B){
var similarity = dotp(A, B) / (Math.sqrt(dotp(A,A)) * Math.sqrt(dotp(B,B)));
return similarity;
}
/** Open DB **/
/****/
//const yemb = (await emb('I really like curry.')).data;
//
//
//console.log('out', xsembs.map(x => ({value:x.value, similarity: cosineSimilarity(x.embeddings, yemb)})));
//
/******/
const request = indexedDB.open("embeddings");
request.onerror = (event) => {
console.error("Why didn't you allow my web app to use IndexedDB?!");
};
request.onupgradeneeded = (event) => {
console.log('onupgradeneeded')
const db = event.target.result;
db.createObjectStore('embeddings', {autoIncrement: true});
};
var embeddings;
number1.onchange = e => {
const request = indexedDB.open("embeddings");
request.onsuccess = (event) => {
const db = event.target.result;
const t = db.transaction('embeddings', 'readwrite').objectStore('embeddings').getAll();
t.onsuccess = e => {
// embeddings.onsuccess = =>
embeddings = e.target.result;
if (embeddings && embeddings.length) {
emb('I really like curry.').then(yemb =>{
const r = embeddings
.map(x => ({value:x.value, similarity: cosineSimilarity(x.embeddings, yemb.data)}));
console.log(r)
result.innerHTML = r
.sort((a,b) => a.similarity > b.similarity)
.map(({value, similarity}) => `<div>${value}: ${similarity}</div>`)
.join('<br/>');
}
);
} else {
console.error(embeddings);
}
}
}
}
request.onsuccess = (event) => {
const db = event.target.result;
let t = db.transaction('embeddings', 'readwrite').objectStore('embeddings').getAll();
t.onerror = () => console.error('transaction failed');
t.onsuccess = e => {
const embeddings = e.target.result;
if (!embeddings || !embeddings.length) {
createEmbeddings(['Jim likes curry', 'I really dislike potatoes', 'We went to Mars last week'])
.then(xsembs => {
const st = db
.transaction('embeddings', 'readwrite')
.objectStore('embeddings');
xsembs.forEach(emb => {
console.log(emb);
st.add(emb);
});
});
}
}
}
//request.onsuccess = (event) => {
// console.log('onsuccess')
// const db = event.target.result;
// const st = db
// .transaction('embeddings', 'readwrite')
// .objectStore('embeddings');
// xsembs.forEach(emb => {
// console.log(emb);
// st.add(emb);
// });
//};
/******/
const first = document.querySelector('#number1');
const second = document.querySelector('#number2');
const result = document.querySelector('.result');
const myWorker = new Worker("worker.js");
//first.onchange = function() {
// myWorker.postMessage([first.value, second.value]);
// console.log('Message posted to worker', [first.value, second.value]);
//}
second.onchange = function() {
myWorker.postMessage([first.value, second.value]);
console.log('Message posted to worker', [first.value, second.value]);
}
myWorker.onmessage = function(e) {
result.textContent = e.data;
console.log('Message received from worker', e.data);
}
</script>
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