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Hardware-accelerated JavaScript library for machine intelligence

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/** * @license * Copyright 2021 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. * ============================================================================= */ import { ENGINE } from '../../engine'; import { SparseFillEmptyRows } from '../../kernel_names'; import { convertToTensor } from '../../tensor_util_env'; import { op } from '../operation'; /** * The input SparseTensor is represented via the map of inputs {`indices`, * `values`, `denseShape`}. The output SparseTensor has the same `denseShape` * but with indices `outputIndices` and values `outputValues`. This op inserts a * single entry for every row that doesn't have any values. The index is created * as `[row, 0, ..., 0]` and the inserted value is `defaultValue`. * * For example, suppose `spInput` has shape [5, 6] and non-empty values: * [0, 1]: a * [0, 3]: b * [2, 0]: c * [3, 1]: d * * Rows 1 and 4 are empty, so the output will be of shape [5, 6] with values: * [0, 1]: a * [0, 3]: b * [1, 0]: `defaultValue` * [2, 0]: c * [3, 1]: d * [4, 0]: `defaultValue` * * The output SparseTensor will be in row-major order and will have the same * shape as the input. * * This op also returns an indicator vector shaped [dense_shape[0]] such that * emptyRowIndicator[i] = True iff row i was an empty row. * * And a reverse index map vector shaped [indices.shape[0]] that is used during * backpropagation, reverseIndexMap[i] = outi s.t. indices[i, j] == * outputIndices[outi, j] for all j * * ```js * const result = tf.sparse.sparseFillEmptyRows( * [[0, 0], [1, 0], [1, 3], [1, 4], [3, 2], [3, 3]], * [0, 10, 13, 14, 32, 33], [5, 6], -1); * console.log(result); * result['outputIndices'].print(); // [[0, 0], [1, 0], [1, 3], [1, 4], * // [2, 0], [3, 2], [3, 3], [4, 0]] * result['outputValues'].print(); // [0, 10, 13, 14,-1, 32, 33, -1] * result['emptyRowIndicator'].print(); // [false, false, true, false, true] * result['reverseIndexMap'].print(); // [0, 1, 2, 3, 5, 6] * ``` * @param indices: 2-D. The indices of the sparse tensor. * @param values: 1-D. The values of the sparse tensor. * @param denseShape: 1-D. The shape of the sparse tensor. * @param defaultValue: 0-D. Default value to insert into location [row, 0, ..., * 0] for rows missing from the input sparse tensor. * @return A map with the following properties: * - outputIndices * - outputValues: 1-D. The values of the filled sparse tensor. * - emptyRowIndicator: 1-D. Whether the dense row was missing in the input * sparse tensor. * - reverseIndexMap: 1-D. A map from the input indices to the output * indices. * @doc {heading: 'Operations', subheading: 'Sparse'} */ function sparseFillEmptyRows_(indices, values, denseShape, defaultValue) { const $indices = convertToTensor(indices, 'indices', 'sparseFillEmptyRows', 'int32'); const $values = convertToTensor(values, 'values', 'sparseFillEmptyRows'); const $denseShape = convertToTensor(denseShape, 'denseShape', 'sparseFillEmptyRows', 'int32'); const $defaultValue = convertToTensor(defaultValue, 'defaultValue', 'sparseFillEmptyRows', $values.dtype); if ($indices.rank !== 2) { throw new Error(`Indices should be Tensor2D but received shape ${$indices.shape}`); } if ($values.rank !== 1) { throw new Error(`Values should be Tensor1D but received shape ${$values.shape}`); } if ($denseShape.rank !== 1) { throw new Error(`Dense shape should be Tensor1D but received shape ${$denseShape.shape}`); } if ($defaultValue.rank !== 0) { throw new Error(`Default value should be a scalar but received shape ${$defaultValue.shape}`); } const inputs = { indices: $indices, values: $values, denseShape: $denseShape, defaultValue: $defaultValue }; const result = ENGINE.runKernel(SparseFillEmptyRows, inputs); return { outputIndices: result[0], outputValues: result[1], emptyRowIndicator: result[2], reverseIndexMap: result[3] }; } export const sparseFillEmptyRows = /* @__PURE__ */ op({ sparseFillEmptyRows_ }); //# sourceMappingURL=data:application/json;base64,{"version":3,"file":"sparse_fill_empty_rows.js","sourceRoot":"","sources":["../../../../../../../tfjs-core/src/ops/sparse/sparse_fill_empty_rows.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;GAeG;AAEH,OAAO,EAAC,MAAM,EAAC,MAAM,cAAc,CAAC;AACpC,OAAO,EAAC,mBAAmB,EAA4B,MAAM,oBAAoB,CAAC;AAGlF,OAAO,EAAC,eAAe,EAAC,MAAM,uBAAuB,CAAC;AAEtD,OAAO,EAAC,EAAE,EAAC,MAAM,cAAc,CAAC;AAEhC;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAuDG;AACH,SAAS,oBAAoB,CACzB,OAA4B,EAAE,MAA2B,EACzD,UAA+B,EAC/B,YAA+B;IACjC,MAAM,QAAQ,GACV,eAAe,CAAC,OAAO,EAAE,SAAS,EAAE,qBAAqB,EAAE,OAAO,CAAC,CAAC;IACxE,MAAM,OAAO,GAAG,eAAe,CAAC,MAAM,EAAE,QAAQ,EAAE,qBAAqB,CAAC,CAAC;IACzE,MAAM,WAAW,GACb,eAAe,CAAC,UAAU,EAAE,YAAY,EAAE,qBAAqB,EAAE,OAAO,CAAC,CAAC;IAC9E,MAAM,aAAa,GAAG,eAAe,CACjC,YAAY,EAAE,cAAc,EAAE,qBAAqB,EAAE,OAAO,CAAC,KAAK,CAAC,CAAC;IAExE,IAAI,QAAQ,CAAC,IAAI,KAAK,CAAC,EAAE;QACvB,MAAM,IAAI,KAAK,CAAC;UACV,QAAQ,CAAC,KAAK,EAAE,CAAC,CAAC;KACzB;IACD,IAAI,OAAO,CAAC,IAAI,KAAK,CAAC,EAAE;QACtB,MAAM,IAAI,KAAK,CACX,gDAAgD,OAAO,CAAC,KAAK,EAAE,CAAC,CAAC;KACtE;IACD,IAAI,WAAW,CAAC,IAAI,KAAK,CAAC,EAAE;QAC1B,MAAM,IAAI,KAAK,CAAC,qDACZ,WAAW,CAAC,KAAK,EAAE,CAAC,CAAC;KAC1B;IACD,IAAI,aAAa,CAAC,IAAI,KAAK,CAAC,EAAE;QAC5B,MAAM,IAAI,KAAK,CAAC,uDACZ,aAAa,CAAC,KAAK,EAAE,CAAC,CAAC;KAC5B;IAED,MAAM,MAAM,GAA8B;QACxC,OAAO,EAAE,QAAQ;QACjB,MAAM,EAAE,OAAO;QACf,UAAU,EAAE,WAAW;QACvB,YAAY,EAAE,aAAa;KAC5B,CAAC;IAEF,MAAM,MAAM,GAAa,MAAM,CAAC,SAAS,CAAC,mBAAmB,EAAE,MAAY,CAAC,CAAC;IAC7E,OAAO;QACL,aAAa,EAAE,MAAM,CAAC,CAAC,CAAC;QACxB,YAAY,EAAE,MAAM,CAAC,CAAC,CAAC;QACvB,iBAAiB,EAAE,MAAM,CAAC,CAAC,CAAC;QAC5B,eAAe,EAAE,MAAM,CAAC,CAAC,CAAC;KAC3B,CAAC;AACJ,CAAC;AAED,MAAM,CAAC,MAAM,mBAAmB,GAAG,eAAe,CAAC,EAAE,CAAC,EAAC,oBAAoB,EAAC,CAAC,CAAC","sourcesContent":["/**\n * @license\n * Copyright 2021 Google LLC. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * =============================================================================\n */\n\nimport {ENGINE} from '../../engine';\nimport {SparseFillEmptyRows, SparseFillEmptyRowsInputs} from '../../kernel_names';\nimport {Scalar, Tensor, Tensor1D, Tensor2D} from '../../tensor';\nimport {NamedTensorMap} from '../../tensor_types';\nimport {convertToTensor} from '../../tensor_util_env';\nimport {ScalarLike, TensorLike} from '../../types';\nimport {op} from '../operation';\n\n/**\n * The input SparseTensor is represented via the map of inputs {`indices`,\n * `values`, `denseShape`}. The output SparseTensor has the same `denseShape`\n * but with indices `outputIndices` and values `outputValues`. This op inserts a\n * single entry for every row that doesn't have any values. The index is created\n * as `[row, 0, ..., 0]` and the inserted value is `defaultValue`.\n *\n * For example, suppose `spInput` has shape [5, 6] and non-empty values:\n * [0, 1]: a\n * [0, 3]: b\n * [2, 0]: c\n * [3, 1]: d\n *\n * Rows 1 and 4 are empty, so the output will be of shape [5, 6] with values:\n * [0, 1]: a\n * [0, 3]: b\n * [1, 0]: `defaultValue`\n * [2, 0]: c\n * [3, 1]: d\n * [4, 0]: `defaultValue`\n *\n * The output SparseTensor will be in row-major order and will have the same\n * shape as the input.\n *\n * This op also returns an indicator vector shaped [dense_shape[0]] such that\n * emptyRowIndicator[i] = True iff row i was an empty row.\n *\n * And a reverse index map vector shaped [indices.shape[0]] that is used during\n * backpropagation, reverseIndexMap[i] = outi s.t. indices[i, j] ==\n * outputIndices[outi, j] for all j\n *\n * ```js\n * const result = tf.sparse.sparseFillEmptyRows(\n *   [[0, 0], [1, 0], [1, 3], [1, 4], [3, 2], [3, 3]],\n *   [0, 10, 13, 14, 32, 33], [5, 6], -1);\n * console.log(result);\n * result['outputIndices'].print(); // [[0, 0], [1, 0], [1, 3], [1, 4],\n *                                  //  [2, 0], [3, 2], [3, 3], [4, 0]]\n * result['outputValues'].print(); // [0, 10, 13, 14,-1, 32, 33, -1]\n * result['emptyRowIndicator'].print(); // [false, false, true, false, true]\n * result['reverseIndexMap'].print(); // [0, 1, 2, 3, 5, 6]\n * ```\n * @param indices: 2-D. The indices of the sparse tensor.\n * @param values: 1-D. The values of the sparse tensor.\n * @param denseShape: 1-D. The shape of the sparse tensor.\n * @param defaultValue: 0-D. Default value to insert into location [row, 0, ...,\n *     0] for rows missing from the input sparse tensor.\n * @return A map with the following properties:\n *     - outputIndices\n *     - outputValues: 1-D. The values of the filled sparse tensor.\n *     - emptyRowIndicator: 1-D. Whether the dense row was missing in the input\n * sparse tensor.\n *     - reverseIndexMap: 1-D. A map from the input indices to the output\n * indices.\n * @doc {heading: 'Operations', subheading: 'Sparse'}\n */\nfunction sparseFillEmptyRows_(\n    indices: Tensor2D|TensorLike, values: Tensor1D|TensorLike,\n    denseShape: Tensor1D|TensorLike,\n    defaultValue: Scalar|ScalarLike): NamedTensorMap {\n  const $indices =\n      convertToTensor(indices, 'indices', 'sparseFillEmptyRows', 'int32');\n  const $values = convertToTensor(values, 'values', 'sparseFillEmptyRows');\n  const $denseShape =\n      convertToTensor(denseShape, 'denseShape', 'sparseFillEmptyRows', 'int32');\n  const $defaultValue = convertToTensor(\n      defaultValue, 'defaultValue', 'sparseFillEmptyRows', $values.dtype);\n\n  if ($indices.rank !== 2) {\n    throw new Error(`Indices should be Tensor2D but received shape\n        ${$indices.shape}`);\n  }\n  if ($values.rank !== 1) {\n    throw new Error(\n        `Values should be Tensor1D but received shape ${$values.shape}`);\n  }\n  if ($denseShape.rank !== 1) {\n    throw new Error(`Dense shape should be Tensor1D but received shape ${\n        $denseShape.shape}`);\n  }\n  if ($defaultValue.rank !== 0) {\n    throw new Error(`Default value should be a scalar but received shape ${\n        $defaultValue.shape}`);\n  }\n\n  const inputs: SparseFillEmptyRowsInputs = {\n    indices: $indices,\n    values: $values,\n    denseShape: $denseShape,\n    defaultValue: $defaultValue\n  };\n\n  const result: Tensor[] = ENGINE.runKernel(SparseFillEmptyRows, inputs as {});\n  return {\n    outputIndices: result[0],\n    outputValues: result[1],\n    emptyRowIndicator: result[2],\n    reverseIndexMap: result[3]\n  };\n}\n\nexport const sparseFillEmptyRows = /* @__PURE__ */ op({sparseFillEmptyRows_});\n"]}