@tensorflow/tfjs-core
Version:
Hardware-accelerated JavaScript library for machine intelligence
296 lines • 14.6 kB
JavaScript
"use strict";
/**
* @license
* Copyright 2018 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var _this = this;
Object.defineProperty(exports, "__esModule", { value: true });
var tf = require("../index");
var jasmine_util_1 = require("../jasmine_util");
var test_util_1 = require("../test_util");
var tensor_ops_1 = require("./tensor_ops");
jasmine_util_1.describeWithFlags('topk', jasmine_util_1.ALL_ENVS, function () {
it('1d array with default k', function () { return __awaiter(_this, void 0, void 0, function () {
var a, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor1d([20, 10, 40, 30]);
_a = tf.topk(a), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([1]);
expect(indices.shape).toEqual([1]);
expect(values.dtype).toBe('float32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [40]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [2]]);
return [2 /*return*/];
}
});
}); });
it('1d array with default k from tensor.topk', function () { return __awaiter(_this, void 0, void 0, function () {
var a, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor1d([20, 10, 40, 30]);
_a = a.topk(), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([1]);
expect(indices.shape).toEqual([1]);
expect(values.dtype).toBe('float32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [40]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [2]]);
return [2 /*return*/];
}
});
}); });
it('2d array with default k', function () { return __awaiter(_this, void 0, void 0, function () {
var a, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor2d([[10, 50], [40, 30]]);
_a = tf.topk(a), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([2, 1]);
expect(indices.shape).toEqual([2, 1]);
expect(values.dtype).toBe('float32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [50, 40]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [1, 0]]);
return [2 /*return*/];
}
});
}); });
it('2d array with k=2', function () { return __awaiter(_this, void 0, void 0, function () {
var a, k, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor2d([
[1, 5, 2],
[4, 3, 6],
[3, 2, 1],
[1, 2, 3],
]);
k = 2;
_a = tf.topk(a, k), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([4, 2]);
expect(indices.shape).toEqual([4, 2]);
expect(values.dtype).toBe('float32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [5, 2, 6, 4, 3, 2, 3, 2]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [1, 2, 2, 0, 0, 1, 2, 1]]);
return [2 /*return*/];
}
});
}); });
it('2d array with k=2 from tensor.topk', function () { return __awaiter(_this, void 0, void 0, function () {
var a, k, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor2d([
[1, 5, 2],
[4, 3, 6],
[3, 2, 1],
[1, 2, 3],
]);
k = 2;
_a = a.topk(k), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([4, 2]);
expect(indices.shape).toEqual([4, 2]);
expect(values.dtype).toBe('float32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [5, 2, 6, 4, 3, 2, 3, 2]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [1, 2, 2, 0, 0, 1, 2, 1]]);
return [2 /*return*/];
}
});
}); });
it('3d array with k=3', function () { return __awaiter(_this, void 0, void 0, function () {
var a, k, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor3d([
[[1, 5, 2], [4, 3, 6]],
[[3, 2, 1], [1, 2, 3]],
]);
k = 3;
_a = tf.topk(a, k), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([2, 2, 3]);
expect(indices.shape).toEqual([2, 2, 3]);
expect(values.dtype).toBe('float32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [5, 2, 1, 6, 4, 3, 3, 2, 1, 3, 2, 1]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [1, 2, 0, 2, 0, 1, 0, 1, 2, 2, 1, 0]]);
return [2 /*return*/];
}
});
}); });
it('topk(int32) propagates int32 dtype', function () { return __awaiter(_this, void 0, void 0, function () {
var a, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor1d([2, 3, 1, 4], 'int32');
_a = tf.topk(a), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([1]);
expect(indices.shape).toEqual([1]);
expect(values.dtype).toBe('int32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [4]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [3]]);
return [2 /*return*/];
}
});
}); });
it('lower-index element appears first, k=4', function () { return __awaiter(_this, void 0, void 0, function () {
var a, k, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = tensor_ops_1.tensor1d([1, 2, 2, 1], 'int32');
k = 4;
_a = tf.topk(a, k), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([4]);
expect(indices.shape).toEqual([4]);
expect(values.dtype).toBe('int32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [2, 2, 1, 1]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [1, 2, 0, 3]]);
return [2 /*return*/];
}
});
}); });
it('throws when k > size of array', function () {
var a = tensor_ops_1.tensor2d([[10, 50], [40, 30]]);
expect(function () { return tf.topk(a, 3); })
.toThrowError(/'k' passed to topk\(\) must be <= the last dimension/);
});
it('throws when passed a scalar', function () {
var a = tensor_ops_1.scalar(2);
expect(function () { return tf.topk(a); })
.toThrowError(/topk\(\) expects the input to be of rank 1 or higher/);
});
it('accepts a tensor-like object, k=2', function () { return __awaiter(_this, void 0, void 0, function () {
var a, k, _a, values, indices, _b, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
a = [20, 10, 40, 30];
k = 2;
_a = tf.topk(a, k), values = _a.values, indices = _a.indices;
expect(values.shape).toEqual([2]);
expect(indices.shape).toEqual([2]);
expect(values.dtype).toBe('float32');
expect(indices.dtype).toBe('int32');
_b = test_util_1.expectArraysClose;
return [4 /*yield*/, values.data()];
case 1:
_b.apply(void 0, [_d.sent(), [40, 30]]);
_c = test_util_1.expectArraysClose;
return [4 /*yield*/, indices.data()];
case 2:
_c.apply(void 0, [_d.sent(), [2, 3]]);
return [2 /*return*/];
}
});
}); });
});
//# sourceMappingURL=topk_test.js.map