I've been doing this for a while and I've literally never met a human who told an algorithm to overweight x[23] ("good looking"), x[48] ("is white") and x[873] ("is wealthy"), for x a 1,100-dimensional feature vector.
Algorithms do have biases, but they are almost always orthogonal to the human ones. Witness, for example, all the recent "we can fool deep learning image recognition systems" papers.
I've been doing this for a while and I've literally never met a human who told an algorithm to overweight x[23] ("good looking"), x[48] ("is white") and x[873] ("is wealthy"), for x a 1,100-dimensional feature vector.
Algorithms do have biases, but they are almost always orthogonal to the human ones. Witness, for example, all the recent "we can fool deep learning image recognition systems" papers.
http://arxiv.org/abs/1412.1897
http://arxiv.org/abs/1312.6199
At this point I'm 90% sure you are a layperson who's never actually programmed such a system.