750
Based on the actual industry challenges such as the instability of welding arc , the complexity of the welding environment and the random changing of plate gap condition , two kinds of data augmentation including noise adding and image rotation were used to boost the CNN dataset while parameters optimization was carried out .
 application: industry; material: as; manufacturing process: welding; concept or principle: arc; concept or principle: complexity; manufacturing process: welding; concept or principle: data; concept or principle: image; concept or principle: parameters optimization
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 application: industry; material: as; manufacturing process: welding; concept or principle: arc; concept or principle: complexity; manufacturing process: welding; concept or principle: data; concept or principle: image; concept or principle: parameters optimization