Unverified50% confidenceOpinionExact time
Laptop sticker advertising lacks clear CPM measurement standards, and the number of impressions is difficult to accurately count.
1
Sources
50%
Confidence
Long-term
Relevance
9/11/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedStatistical significance does not equal practical significance; even if the p-value is very small, if the actual improvement is negligible its engineering value remains limited—this corresponds in statistics to the distinction between statistical power and effect size.63% similarUnverifiedReplacing histograms with per-instance statistics (mean, median, standard deviation) actually slightly degraded performance.62% similarUnverifiedA study found that approximately one-third of the data sources cited by Perplexity do not actually contain the number it claims.61% similarUnverifiedIn scenarios with extreme class imbalance (such as fraud detection), looking solely at accuracy as an evaluation metric is completely meaningless.61% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/908040API
curl https://kongchang.com/api/v1/knowledge/claims/908040MCP
get_claim(id=908040)