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# bert_large_squad_onnxruntime
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## 论文
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[BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding](https://arxiv.org/pdf/1810.04805.pdf)
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## 模型结构
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bert_large_squad核心是transformer,transformer结构如下:

![image](https://developer.hpccube.com/codes/modelzoo/bert_large_squad_onnx/-/raw/main/resources/transformer.png)
## 算法原理
bert_large_squad模型的主要参数为:24个transformer层、1024个hidden size、16个self-attention heads,简要原理可用下图表示:

![image](https://developer.hpccube.com/codes/modelzoo/bert_large_squad_onnx/-/raw/main/resources/squad.png)
## 数据集
暂无合适中文数据集
## 环境配置
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[光源](https://www.sourcefind.cn/#/service-details)可拉取推理的docker镜像,在[光合开发者社区](https://cancon.hpccube.com:65024/4/main/)可下载onnxruntime安装包。bert_large_squad_onnx推荐的镜像如下:
```
docker pull image.sourcefind.cn:5000/dcu/admin/base/custom:ort1.14.0_migraphx3.0.0-dtk22.10.1
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docker run -d -t --privileged --device=/dev/kfd --device=/dev/dri/ --network=host --group-add video --name bert-test image.sourcefind.cn:5000/dcu/admin/base/custom:ort1.14.0_migraphx3.0.0-dtk22.10.1
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```
[huggingface](https://huggingface.co/ctuning/mlperf-inference-bert-onnx-fp32-squad-v1.1)下载模型model.onnx到当前目录
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执行fp16转换
```
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pip3 install onnxmltools
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python3 fp16-convert.py
```
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## 推理
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```
python3 main.py
```
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## result
![image](https://developer.hpccube.com/codes/modelzoo/bert_large_squad_onnx/-/raw/main/resources/bert_result.png)
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### 性能和精度数据
暂无
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## 应用场景
### 算法类别
nlp
### 热点应用行业
问答系统
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## 源码仓库及问题反馈
https://developer.hpccube.com/codes/modelzoo/bert_large_squad_onnx
## 参考
https://github.com/google-research/bert
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