基于自然语言处理的CNAS认可准则自动对标系统

doi:10.16180/j.cnki.issn1007-7820.2023.05.005

Abstract

Abstract:

During the CNAS review process, manual benchmarking of non-conformance items and its compliance clauses has the disadvantages of time-consuming, labor-intensive, and inaccurate benchmarking. In view of the above problems, this study proposes a multi-level model automatic benchmarking method based on natural language processing. By studying the linguistic characteristics of the description of non-conforming items, the Bi-LSTM network of the attention mechanism is used to classify non-conforming items. Under this classification, the SimCSE network model based on corpus expansion and transfer learning is used to calculate similar non-conforming items and extract the corresponding basis clauses, which effectively solves the problems such as inaccurate benchmarking.Through simulation experiments, the benchmarking accuracy rate of the proposed method can reach 74.4%, and the semantic matching calculation time is greatly improved when compared with the DSSM model, and the memory consumption and the highest matching speed are also been significantly improved.

Key words: deep learning, natural language processing, semantic matching, benchmarking system, multi label classification, multi model fusion, attention mechanism, semantic computing

CLC Number:

TP391

LIU Yuwei,CAO Min,FENG Haojia. CNAS Recognition Criteria Automatic Benchmarking System Based on Natural Language Processing[J].Electronic Science and Technology, 2023, 36(5): 28-33.

Figures/Tables 8

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References 19

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标签	不符合描述	不符合条款号	不符合项类别
1	实验室提供不出近2年参加的电气领域/结构判定(电气间隙和爬电距离)子领域能力验证记录。	CNAS-CL01∶2018/7.7.3	不符合认可规则类文件要求
8	实验室未能提供从事电气领域检测人员的安全培训记录。	CNAS-CL11∶2015 5.2.2	人员
12	实验室提供不出设备编号为AL295的直流充电桩模拟分析仪(EV7002)的校准证书。	CNAS-CL01∶2018/6.4.6	溯源性

Sentence1	Sentence2	Label
明天上海天气怎么样	上海明天天气怎么样。	1
我手机丢了,我想换个手机	我想买个新手机,求推荐	1
西宁在哪个省	西宁是哪个市	0

模型	方法	准确率 /%	训练耗时 /min	检索耗时 /s	内存消耗 /G
DSSM	深度语义匹配	73.3	272	22.0	2.7
SVM	支持向量机	60.2	31	5.0	1.2
SimCSE	对比学习	75.5	69	18.0	13.6
本方案模型	双模型融合	74.4	45	3.4	2.5

CNAS Recognition Criteria Automatic Benchmarking System Based on Natural Language Processing

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