I suggest taking a look at
FaceNet: Unified Attachment for Face Recognition and Clustering
My ( , ):
FaceNet $\ mathbb {R} ^ {128} $, . . ( A, A, , A). (, , ).
LMNN. , .
LMNN
(LMNN)
$$ d (x, y) = (x -y) M (x -y) ^ T $$
$M $- . , $d (x, y) = 0\Leftrightarrow x = y $ .
:
, . .
, . , . , .
$$ || f (x_i ^ a) - f (x_i ^ p) || _2 ^ 2 +\alpha < || f (x_i ^ a) - f (x_i ^ n) || _2 ^ 2 $$
$\ alpha $- , $x_i ^ a $- , $x_i ^ p $- , $x_i ^ n $- . $\ alpha $ . , $f $ $\ mathbb {R} ^ {128} $, . $\ alpha $, $f '= 2\cdot f $.
Datasets
- 99,63% (LFW)
- 95.12% Faces YouTube
: Zeiler Fergus , .
.
.