NearestNeighbors
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Sélectionne les k centres les plus proches pour chaque point.
Les rangées de points sont supposées être des points d'entrée. Les rangées de centres sont supposées constituer la liste des centres candidats. Pour chaque point, les k centres qui ont la plus petite distance L2 par rapport à lui sont calculés.
Constantes
| Chaîne | OP_NAME | Le nom de cette opération, tel que connu par le moteur principal TensorFlow |
Méthodes héritées
De la classe java.lang.Object | booléen | est égal à (Objet arg0) |
| Classe finale<?> | obtenirClasse () |
| int | Code de hachage () |
| vide final | notifier () |
| vide final | notifierTous () |
| Chaîne | àChaîne () |
| vide final | attendre (long arg0, int arg1) |
| vide final | attendez (long arg0) |
| vide final | attendez () |
Constantes
chaîne finale statique publique OP_NAME
Le nom de cette opération, tel que connu par le moteur principal TensorFlow
Valeur constante : « NearestNeighbours »
Méthodes publiques
Méthode d'usine pour créer une classe encapsulant une nouvelle opération NearestNeighbors.
Paramètres
| portée | portée actuelle |
|---|
| points | Matrice de forme (n, d). Les lignes sont supposées être des points d'entrée. |
|---|
| centres | Matrice de forme (m, d). Les lignes sont supposées être des centres. |
|---|
| k | Nombre de centres les plus proches à retourner pour chaque point. Si k est supérieur à m, alors seuls m centres sont renvoyés. |
|---|
Retour
- une nouvelle instance de NearestNeighbours
Sortie publique < TFloat32 > closeCenterDistances ()
Matrice de forme (n, min(m, k)). Chaque ligne contient la distance L2 au carré jusqu'au centre correspondant dans les indices les plus proches_center_indices.
sortie publique < TInt64 > plus procheCenterIndices ()
Matrice de forme (n, min(m, k)). Chaque ligne contient les indices des centres les plus proches du point correspondant, classés par distance croissante.
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/07/26 (UTC).
[null,null,["Dernière mise à jour le 2025/07/26 (UTC)."],[],[],null,["# NearestNeighbors\n\npublic final class **NearestNeighbors** \nSelects the k nearest centers for each point.\n\n\nRows of points are assumed to be input points. Rows of centers are assumed to be\nthe list of candidate centers. For each point, the k centers that have least L2\ndistance to it are computed.\n\n\u003cbr /\u003e\n\n### Constants\n\n|--------|--------------------------------------------------------------------------------|---------------------------------------------------------|\n| String | [OP_NAME](/jvm/api_docs/java/org/tensorflow/op/image/NearestNeighbors#OP_NAME) | The name of this op, as known by TensorFlow core engine |\n\n### Public Methods\n\n|--------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| static [NearestNeighbors](/jvm/api_docs/java/org/tensorflow/op/image/NearestNeighbors) | [create](/jvm/api_docs/java/org/tensorflow/op/image/NearestNeighbors#create(org.tensorflow.op.Scope, org.tensorflow.Operand\u003corg.tensorflow.types.TFloat32\u003e, org.tensorflow.Operand\u003corg.tensorflow.types.TFloat32\u003e, org.tensorflow.Operand\u003corg.tensorflow.types.TInt64\u003e))([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TFloat32](/jvm/api_docs/java/org/tensorflow/types/TFloat32)\\\u003e points, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TFloat32](/jvm/api_docs/java/org/tensorflow/types/TFloat32)\\\u003e centers, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e k) Factory method to create a class wrapping a new NearestNeighbors operation. |\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TFloat32](/jvm/api_docs/java/org/tensorflow/types/TFloat32)\\\u003e | [nearestCenterDistances](/jvm/api_docs/java/org/tensorflow/op/image/NearestNeighbors#nearestCenterDistances())() Matrix of shape (n, min(m, k)). |\n| [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e | [nearestCenterIndices](/jvm/api_docs/java/org/tensorflow/op/image/NearestNeighbors#nearestCenterIndices())() Matrix of shape (n, min(m, k)). |\n\n### Inherited Methods\n\nFrom class [org.tensorflow.op.RawOp](/jvm/api_docs/java/org/tensorflow/op/RawOp) \n\n|----------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| final boolean | [equals](/jvm/api_docs/java/org/tensorflow/op/RawOp#equals(java.lang.Object))(Object obj) |\n| final int | [hashCode](/jvm/api_docs/java/org/tensorflow/op/RawOp#hashCode())() |\n| [Operation](/jvm/api_docs/java/org/tensorflow/Operation) | [op](/jvm/api_docs/java/org/tensorflow/op/RawOp#op())() Return this unit of computation as a single [Operation](/jvm/api_docs/java/org/tensorflow/Operation). |\n| final String | [toString](/jvm/api_docs/java/org/tensorflow/op/RawOp#toString())() |\n\nFrom class java.lang.Object \n\n|------------------|---------------------------|\n| boolean | equals(Object arg0) |\n| final Class\\\u003c?\\\u003e | getClass() |\n| int | hashCode() |\n| final void | notify() |\n| final void | notifyAll() |\n| String | toString() |\n| final void | wait(long arg0, int arg1) |\n| final void | wait(long arg0) |\n| final void | wait() |\n\nFrom interface [org.tensorflow.op.Op](/jvm/api_docs/java/org/tensorflow/op/Op) \n\n|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [ExecutionEnvironment](/jvm/api_docs/java/org/tensorflow/ExecutionEnvironment) | [env](/jvm/api_docs/java/org/tensorflow/op/Op#env())() Return the execution environment this op was created in. |\n| abstract [Operation](/jvm/api_docs/java/org/tensorflow/Operation) | [op](/jvm/api_docs/java/org/tensorflow/op/Op#op())() Return this unit of computation as a single [Operation](/jvm/api_docs/java/org/tensorflow/Operation). |\n\nConstants\n---------\n\n#### public static final String\n**OP_NAME**\n\nThe name of this op, as known by TensorFlow core engine \nConstant Value: \"NearestNeighbors\"\n\nPublic Methods\n--------------\n\n#### public static [NearestNeighbors](/jvm/api_docs/java/org/tensorflow/op/image/NearestNeighbors)\n**create**\n([Scope](/jvm/api_docs/java/org/tensorflow/op/Scope) scope, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TFloat32](/jvm/api_docs/java/org/tensorflow/types/TFloat32)\\\u003e points, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TFloat32](/jvm/api_docs/java/org/tensorflow/types/TFloat32)\\\u003e centers, [Operand](/jvm/api_docs/java/org/tensorflow/Operand)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e k)\n\nFactory method to create a class wrapping a new NearestNeighbors operation. \n\n##### Parameters\n\n| scope | current scope |\n| points | Matrix of shape (n, d). Rows are assumed to be input points. |\n| centers | Matrix of shape (m, d). Rows are assumed to be centers. |\n| k | Number of nearest centers to return for each point. If k is larger than m, then only m centers are returned. |\n|---------|--------------------------------------------------------------------------------------------------------------|\n\n##### Returns\n\n- a new instance of NearestNeighbors \n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TFloat32](/jvm/api_docs/java/org/tensorflow/types/TFloat32)\\\u003e\n**nearestCenterDistances**\n()\n\nMatrix of shape (n, min(m, k)). Each row contains the squared L2 distance to the\ncorresponding center in nearest_center_indices. \n\n#### public [Output](/jvm/api_docs/java/org/tensorflow/Output)\\\u003c[TInt64](/jvm/api_docs/java/org/tensorflow/types/TInt64)\\\u003e\n**nearestCenterIndices**\n()\n\nMatrix of shape (n, min(m, k)). Each row contains the indices of the centers\nclosest to the corresponding point, ordered by increasing distance."]]
