の文字列の出力を解析する方法:ここでのコードを使用してモデルを作成しtensorflowモデル
public static void main(String[] args) {
Session session = SavedModelBundle.load("/Users/gagandeep.malhotra/Documents/SampleTF_projects/tf_iris_model/1510707746/", "serve").session();
Tensor x =
Tensor.create(
new long[] {2, 4},
FloatBuffer.wrap(
new float[] {
6.4f, 3.2f, 4.5f, 1.5f,
5.8f, 3.1f, 5.0f, 1.7f
}));
final String xName = "Placeholder:0";
final String scoresName = "dnn/head/predictions/probabilities:0";
List<Tensor<?>> outputs = session.runner()
.feed(xName, x)
.fetch(scoresName)
.run();
// Outer dimension is batch size; inner dimension is number of classes
float[][] scores = new float[2][3];
outputs.get(0).copyTo(scores);
System.out.println(Arrays.deepToString(scores));
}
:https://gist.github.com/gaganmalhotra/1424bd3d0617e784976b29d5846b16b1
が、それはコードの下に使用して行うことができるJavaでprobabilitesの予測を取得するには私たちは以下のコードのための予測クラス(文字列型)をコピーしたい場合は:
final String xName = "Placeholder:0";
final String className = "dnn/head/predictions/str_classes:0";
List<Tensor<?>> outputs = session.runner()
.feed(xName, x)
.fetch(className)
.run();
// Outer dimension is batch size; inner dimension is number of classes
String[][] classes = new String[2][1];
outputs.get(0).copyTo(classes);
System.out.println(Arrays.deepToString(classes));
私はERROで終わりますRのような:
Exception in thread "main" java.lang.IllegalArgumentException: cannot copy Tensor with 2 dimensions into an object with 1
at org.tensorflow.Tensor.throwExceptionIfTypeIsIncompatible(Tensor.java:739)
at org.tensorflow.Tensor.copyTo(Tensor.java:450)
at deeplearning.IrisTFLoad.main(IrisTFLoad.java:71)
しかし、寸法が出力テンソルと同じである:[形状のSTRINGテンソル[2、1]]
PS:署名定義は以下のように求めることができる -
試みThe given SavedModel SignatureDef contains the following input(s):
inputs['x'] tensor_info:
dtype: DT_FLOAT
shape: (-1, 4)
name: Placeholder:0
The given SavedModel SignatureDef contains the following output(s):
outputs['class_ids'] tensor_info:
dtype: DT_INT64
shape: (-1, 1)
name: dnn/head/predictions/ExpandDims:0
outputs['classes'] tensor_info:
dtype: DT_STRING
shape: (-1, 1)
name: dnn/head/predictions/str_classes:0
outputs['logits'] tensor_info:
dtype: DT_FLOAT
shape: (-1, 3)
name: dnn/head/logits:0
outputs['probabilities'] tensor_info:
dtype: DT_FLOAT
shape: (-1, 3)
name: dnn/head/predictions/probabilities:0
Method name is: tensorflow/serving/predict
もの:
テンソルテンソル=(テンソル)outputs.get(0)。 byte [] [] [] result = tensor.copyTo(新しいバイト[2] [1] []);
が、以下のようなエラーが出:
Exception in thread "main" java.lang.IllegalStateException: invalid DataType(7)
at org.tensorflow.Tensor.readNDArray(Native Method)
at org.tensorflow.Tensor.copyTo(Tensor.java:451)
at deeplearning.IrisTFLoad.main(IrisTFLoad.java:74)
ありがとうございます@ash –