Sports Event Model Evaluation and Prediction Method Using Principal Component Analysis

Table 1

Risk evaluation indexes system of sports events.

Target layer	Criterion layer	Primary index layer	Secondary index layer
Sports event risk	Risk probability B1	Personnel risk C1	Staff risk
			Risks of athletes, coaches, and referees
			Live audience risk
	Risk loss B2	Operational risk C2	Event schedule risk
			Traffic risk of event participants
			Security risk
	Uncontrollability B3	Facility risk C3	Site quality and safety risk
			Site lawn and drainage risk
		Economic risks C4	Event scale risk
			Precompetition budget risk
			Sponsor risk
		External environmental risk C5	Natural environment risk
			Food safety risk