The phrase "almost perfect calibration" is correct and usable in written English.
You can use it when describing a calibration process that is very close to being ideal but not quite there.
Example: "The device achieved an almost perfect calibration, resulting in minimal error margins during testing."
Alternatives: "nearly flawless calibration" or "close to perfect calibration".
After recalibration, the three models showed almost perfect calibration.
After recalibration, the three models showed almost perfect calibration, whereas calibration of FIGO stage was reasonable.
We achieved excellent AUROCs in both cohorts as well as almost perfect calibration (figure 2 and table 3).
The ratio of predicted to observed risk in this tenth was 0.97, indicating almost perfect calibration (a ratio of 1 indicates perfect calibration that is, no under-prediction or over-prediction).
The ratio of predicted to observed risk in this 10th was 0.99, indicating almost perfect calibration (a ratio of 1 indicates perfect calibration that is, no underprediction or overprediction).
Ground truth lines are almost entirely hidden behind the perfect calibration result in the top plot and behind the lateral deviation result in the bottom figure.
SAPS III general equations discriminated very well in almost all studies, but calibration tests suggested significant departures from perfect calibration in most of them, especially in large studies (as should be expected by the extensive use of the H-L, C- and H-statistics).
No hysteresis was detectable and reproducibility was almost perfect (always less than 50 g difference between calibration trials).
The diagnostic reliability was moderate to almost perfect after self-teaching DC/TMD or participating in the two-day DC/TMD training and calibration course, indicating that self-teaching is sufficient in order to achieve adequate reliability for the investigated diagnoses but that the reliability seems to be improved further by the course.
Therefore, we created calibration plots based on internal cross-validation by bootstrap resampling, which showed an almost perfect agreement of observed and predicted event rates.
"I played almost perfect tennis".
