1080
This study also shows that the value of a decision function in a support vector machine has a physical meaning ( at least in the proposed method ) and is a semi-quantitative guideline for porosity density of parts fabricated by additive manufacturing .
 support, machine, porosity density, fabricated, additive manufacturing
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 support, machine, porosity density, fabricated, additive manufacturing