Table 4 The annotation results of entity sequence in accidents texts of subway construction.

From: Automatic construction of risk transmission network about subway construction based on deep learning models

Types of domain entities

Number of entities

Number of annotation

Examples of entities

HF

141

287

Illegal operation, careless operation, smoking…

MD

123

134

Mechanical failure, cable short circuit, pile deformation, support system instability…

EF

106

191

Rain, strong typhoons, weak foundations, toxic gases, slippery ground…

TM

356

596

Ineffective hidden danger investigation, illegal subcontracting, chaotic safety management…

RE

613

2108

Water gushing, collapse, fall, lifting injury…

Total

1339

3316