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Load Tensorflow pb file using Bert/TextCNNs, an ensemble model using Java.

Java 100.00%

bert-as-service bert-model bert bert-chinese text-classification java-tensorflow bert-java

bert-text-classification-j's Introduction

Ensemble Classification Demo

Implemented TextCNNs,BERT as well as the weighted vote ensemble method.

Run entry: src/main/java/EnsembleDemo.java

This repository contains the whole inference process of both BERT and TextCNNs, including preprocessing and prediction.

Preparation

Firstly, you must have exported either BERT/TextCNNs models into .pb format. For BERT models, you can find the solution to exporting BERT .pb model by checking https://github.com/cyk1337/BERT-Classification/blob/master/bert/run_classification.py.
Then, use the .pb model path to initialize the model class at

BERT-Text-Classification-J/src/main/java/EnsembleDemo.java

Line 38 in 18c6444

String bert_model_path = "pb_model/bert_L4_FC3_Seq128.pb";

, suppose you have generated .pb model correctly.

bert-text-classification-j's People

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nnvjl magicgo slidersun xiaokangran sijunx hqlin-1 ronghuiju zhaoxjmail mathewdenis

bert-text-classification-j's Issues

I got NullPointerException after load bert model

my Exception:

Starting to predict!
====================== Start loading models ... ======================
====================== Models loaded! ======================
java.lang.NullPointerException
at com.google.common.io.ByteStreams.copy(ByteStreams.java:167)
at com.google.common.io.ByteStreams.toByteArray(ByteStreams.java:210)
at model.BaseModel.(BaseModel.java:21)
at model.Bert.(Bert.java:10)
at EnsembleDemo._load_Bert(EnsembleDemo.java:56)
at EnsembleDemo.loadModels(EnsembleDemo.java:50)
at EnsembleDemo.(EnsembleDemo.java:21)
at EnsembleDemo.main(EnsembleDemo.java:164)
Exception in thread "main" java.lang.NullPointerException
at model.Bert.predict_single_case(Bert.java:21)
at EnsembleDemo.__pred_with_Bert(EnsembleDemo.java:79)
at EnsembleDemo.doPredictWithModels(EnsembleDemo.java:63)
at EnsembleDemo.main(EnsembleDemo.java:174)

Is this Exception because of the pb file?
how to generate the pb file correctly? i generate it through the code:

frozen_graph = convert_variables_to_constants(sess, input_graph_def, output_names)

i don't know how auther generate it.
and or other problem cause the Exception.

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