Estimation of Food Security Risk Level Using Z-Number-Based Fuzzy System

Table 1

Fuzzy knowledge base.

Cereal yield	Cereal production	Economic growth	Risk level
High	High	High	Good
High	High	Normal	Good
High	High	Low	Acceptable
High	Normal	High	Acceptable
High	Normal	Normal	Good
High	Normal	Low	Acceptable
High	Low	High	Severe
High	Low	Normal	Severe
High	Low	Low	Severe
Normal	High	High	Severe
Normal	High	Normal	Acceptable
Normal	High	Low	Acceptable
Normal	Normal	High	Acceptable
Normal	Normal	Normal	Good
Normal	Normal	Low	Good
Normal	Low	High	Severe
Normal	Low	Normal	Acceptable
Normal	Low	Low	Severe
Low	High	High	Severe
Low	High	Normal	Severe
Low	High	Low	Severe
Low	Normal	High	Severe
Low	Normal	Normal	Acceptable
Low	Normal	Low	Acceptable
Low	Low	High	Severe
Low	Low	Normal	Severe
Low	Low	Low	Acceptable