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@tensorflow-models/coco-ssd

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Object detection model (coco-ssd) in TensorFlow.js

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/** * @license * Copyright 2017 Google Inc. 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. * ============================================================================= */ import { Tensor } from './tensor'; import { NamedTensorMap } from './tensor_types'; export interface TapeNode { id: number; name: string; outputs: Tensor[]; inputs: NamedTensorMap; gradient?: (dy: Tensor | Tensor[]) => NamedGradientMap; } export declare type NamedGradientMap = { [inputName: string]: () => Tensor; }; /** * Computes a list of TapeNodes that connect x to y, filtering everything else * out and preserving the order of the original tape elements. * * @param tape The tape elements to filter. * @param xs The input Tensors. * @param y The output Tensor. */ export declare function getFilteredNodesXToY(tape: TapeNode[], xs: Tensor[], y: Tensor): TapeNode[]; /** * Backpropagate gradients through the filtered TapeNodes. * * @param tensorAccumulatedGradientMap A map of Tensor to its gradient. This map * is mutated by this method. * @param filteredTape The filtered TapeNodes to backprop through. */ export declare function backpropagateGradients(tensorAccumulatedGradientMap: { [tensorId: number]: Tensor; }, filteredTape: TapeNode[]): void;