Our experimental results indicate that optimal performance, achieved with unequal feature proportions, could be better than the performance obtained with the commonly used 50 50 feature proportion.
Therefore, the impact of feature proportion, which has been ignored by most existing work, should be taken into account and more study is required as to how to make feature proportion allocation benefit the performance of multi-biometric systems.
In this paper, we investigate the impact of feature proportion on the matching performance of multi-biometric systems.
For example, multi-biometric systems with two biometric traits commonly adopt a 50 50 feature proportion setting, which means that fused feature data contains half elements from each biometric modality.
To adjust the effect of physical distance on LD, we calculated the residual (r res ) by subtracting the expected r2 value from the observed r2 value, r res = r2 - E(r), which we regressed with the observed feature proportion, r res = cp + d, where p, c, and d are the observed proportion, the regression coefficient, and the intercept, respectively.
"There is a common consensus as to what constitutes beauty and this consists of certain feature proportions and properties of the face that can be measured".
In our study population, seven out of 20 tumours (35%, 95% CI 12 58%) had oligodendrial features, whose proportion may appear high.
These patients had the following features: higher proportion of right-sided primary, stage III (and thus more likely to have received prior adjuvant chemotherapy), poorly differentiated carcinoma and liver only metastasis.
The next day, he was injected with a form of PRP therapy called autologous conditioned plasma, which features different proportions of platelets and other cells.
