Mathematical Problems in Engineering / 2014 / Article / Tab 1

Research Article

Quality-Oriented Classification of Aircraft Material Based on SVM

Table 1

Quality-oriented material classification list.

TypesQuality eigenvalueQuality influence valueQuality costAttention

-oriented material classification
General materialHigh LowLowUnnecessary
Key materialHighLowHigh**
Lever-type materialHighHighLow**
Core materialHighHighHigh****
Adjustable materialLowLowLow**
Risk materialLowLowHigh****
Bottleneck-type materialLowHighLow***
Strategic materialLowHighHigh*****

More “∗” represent that we need to pay more attention to this type. For example, we should pay enough attention to strategic material with five “∗” during material management, whereas we can pay less attention to key material which just has two “∗”.

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19.