Exact(12)
It is also important to mention that as with all case-control investigations, there is a possibility of recall bias and it is not possible to validate the information provided by the subject.
We shall see that it is not possible to validate the model at any of these levels of aggregation.
These extra meanings are typically loosely formulated, in which case it is not possible to validate the feature-based model to ensure that it provides a correct representation for a downstream activity such as process planning.
One of the drawbacks of this solution is that it is not possible to validate the 3D cadastral representations (Are the volumes closed? Are the neighbours non-overlapping?) The second phase is research in progress and comprises the actual inclusion of the 3D data in the registration, enabling complete validation and even better 3D data management and dissemination.
From a descriptive perspective, since no comparable data (e.g., survey results) are available, it is not possible to validate our results.
It is not possible to validate either method prospectively on this dataset.
Similar(48)
Continuous arterial blood sampling was not obtained in this study, and therefore, it was not possible to validate the image-derived input function from the femoral artery, which may cause bias in the estimated model parameters [54].
It is worth noting that due to a clear lack of nanofluids data, it was not possible to validate our mathematical model against experimental data for the specific case of natural convection using nanofluids in a cavity.
All the tested PVC methods resulted in an under estimation of the AUC at later frames which was mitigated after scaling with a VBS at 50 min. In the earlier frames the different PVC resulted in different AUC, which were not possible to validate.
Third, due to the small number of newly diagnosed HIV infections it was not possible to validate the risk model within our study population.
Therefore it was not possible to validate these cases.
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