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This guided learning procedure, which can also be seen as a metric learning technique, can further update network parameters for discriminating face pairs.
Experiment 1 subjects studied a series of face pairs; within-pair faces were presented simultaneously, with one just above the other.
The test set from the AR database includes 4050 face pairs, half of which is genuine and the other half is impostor.
Based on constructed face pairs dataset from CASIA WebFace and LFW datasets, we then fine-tune the whole network parameters under the guide of the learned knowledge, which is obtained from the highly successful Joint Bayesian model.
Children face pairs included the 0% 30% Old faces, young adult face pairs included the 35% 65% Old faces, and middle-age adult face pairs included the 70% 100% Old faces.
There were 90 composite face pairs in total, comprising 30 SA, 30 SM, 15 DA, and 15 DM pairs.
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The new Pebble Time has water resistance just like the original, allowing for use during swimming and shower sessions, and it employs a Gorilla Glass face paired with a stainless steel bezel available in three colors at launch.
Each trial was preceded by a 500 ms crosshair, followed by a face pair presented for a maximum of 10 seconds or until a response was made.
We extracted each participant's responses to each face (t contrast maps against baseline) to estimate response pattern dissimilarities between each face pair (1-Pearson r across voxels).
Change in attention bias was subsequently calculated by subtracting response latencies of trials where the probe preplaced a neutral face of a disgust-neutral face pair from trial where both faces were neutral.
Their voices are broadcast from 14 wafer-thin white speakers, around 23 inches square, arranged in seven facing pairs, one for each person's voice.
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