Flips each eigenvector's sign with probability 1/2, per the paper.
Usage
morie_gtrf_sign_flip(pe, rng)
Arguments
- pe
Positional encoding matrix (n x d).
- rng
Generator environment (shared with the Python arm).
Value
Sign-flipped encoding.
References
Dwivedi, V. P. and Bresson, X. (2020).
Examples
set.seed(4)
pe <- matrix(1:6, 3, 2)
morie_gtrf_sign_flip(pe, rng = rmorie:::.ghc_rng(1))
#> [,1] [,2]
#> [1,] -1 -4
#> [2,] -2 -5
#> [3,] -3 -6
