Unverified85% confidenceOpinionTime unknown
金融风控中可以使用F2分数(β=2)来更强调查全率,垃圾邮件过滤中可以使用F0.5分数(β=0.5)来更强调查准率
1
Sources
85%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe false positive rate is calculated as FPR = FP / (FP + TN) and is one of the core metrics for measuring classifier quality.60% similarUnverified当平台系统性地移除差评后,商家评分会趋同于4.7/5左右,这是截断分布导致的数学必然结果59% similarUnverified在量化内容分析中,编码者间信度通常使用Cohen's Kappa或Krippendorff's Alpha系数衡量,一般要求达到0.7以上才算可接受59% similarUnverifiedThe Sharpe ratio is excess return divided by the standard deviation of returns, measuring the reward obtained per unit of risk taken; a value above 1 is generally considered good performance, while above 2 is considered excellent.58% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/20855API
curl https://kongchang.com/api/v1/knowledge/claims/20855MCP
get_claim(id=20855)