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event 315 solution

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elffuss-bot
2026-10-02 07:27:03 +00:00
parent def92b1e08
commit b03aacd17f
2 changed files with 92 additions and 0 deletions
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91
blobs/0x3cfe540572eb87786d4124722535b2058afa7d5a08cf4b12748bb1301161ad3c Normal file
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diff --git a/diarize.mjs b/diarize.mjs
index 622b5267a17a6e3142931024ae45611ecb21b712..b47059b51d5db5fdbffabbefb6320b38dafa0c3b 100644
--- a/diarize.mjs
+++ b/diarize.mjs
@@ -25,7 +25,18 @@ export async function loadDiarizer(TF, { device = 'wasm' } = {}) {
return { seg, segP, emb, embP };
}
-const cos = (a, b) => { let dt = 0, na = 0, nb = 0; for (let i = 0; i < a.length; i++) { dt += a[i]*b[i]; na += a[i]*a[i]; nb += b[i]*b[i]; } return dt / (Math.sqrt(na)*Math.sqrt(nb) || 1); };
+const cos = (a, b) => {
+ if (a.length !== b.length) {
+ throw new Error('cosine: vectors must have the same length');
+ }
+ let dt = 0, na = 0, nb = 0;
+ for (let i = 0; i < a.length; i++) {
+ dt += a[i]*b[i];
+ na += a[i]*a[i];
+ nb += b[i]*b[i];
+ }
+ return dt / (Math.sqrt(na)*Math.sqrt(nb) || 1);
+};
const rms = (a) => { let s = 0; for (const v of a) s += v*v; return Math.sqrt(s/a.length); };
async function embed(D, slice) {
diff --git a/tests/acceptance/1/CRITERIA.json b/tests/acceptance/1/CRITERIA.json
new file mode 100644
index 0000000000000000000000000000000000000000..b7be116c5920b5a10f292bbcce161d6cfe2c9a1b
--- /dev/null
+++ b/tests/acceptance/1/CRITERIA.json
@@ -0,0 +1,30 @@
+{
+ "schema": "elffuss-t2t/criteria@2",
+ "issue": 1,
+ "criteria": [
+ {
+ "index": 1,
+ "tests": [
+ "tests/acceptance/1/criteria.test.js::criterion 1"
+ ]
+ },
+ {
+ "index": 2,
+ "tests": [
+ "tests/acceptance/1/criteria.test.js::criterion 2"
+ ]
+ },
+ {
+ "index": 3,
+ "tests": [
+ "tests/acceptance/1/criteria.test.js::criterion 3"
+ ]
+ },
+ {
+ "index": 4,
+ "tests": [
+ "tests/acceptance/1/criteria.test.js::criterion 4"
+ ]
+ }
+ ]
+}
diff --git a/tests/acceptance/1/criteria.test.js b/tests/acceptance/1/criteria.test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ed79561c1a8c3e57aab5126288e9109c119bdaab
--- /dev/null
+++ b/tests/acceptance/1/criteria.test.js
@@ -0,0 +1,25 @@
+import { test } from 'node:test'
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import * as mod from '../../../diarize.mjs' // the code under test: call it as mod.<name>(...)
+const source = readFileSync(new URL('../../../diarize.mjs', import.meta.url), 'utf8') // the text of diarize.mjs, for a criterion about how the file is written
+
+test('criterion 1', () => {
+ // `cosine([1, 2, 3], [1, 2])` throws an Error whose message starts with `cosine:`.
+ assert.rejects(() => mod.cosine([1, 2, 3], [1, 2]), /cosine:/)
+})
+
+test('criterion 2', () => {
+ // `cosine([1, 0], [1, 0, 5])` throws an Error whose message starts with `cosine:`.
+ assert.rejects(() => mod.cosine([1, 0], [1, 0, 5]), /cosine:/)
+})
+
+test('criterion 3', () => {
+ // `cosine([1, 0], [1, 0])` returns 1.
+ assert.deepEqual(mod.cosine([1, 0], [1, 0]), 1)
+})
+
+test('criterion 4', () => {
+ // `cosine([0, 0], [0, 0])` returns 0.
+ assert.deepEqual(mod.cosine([0, 0], [0, 0]), 0)
+})

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