# Blog

## Social impacts & bias of AI

There have been a series of news articles in Korea about AI and its applications that have been worrying me for sometime. I’ve often ranted about them on social media, but I was told that my rant alone is not enough, because it does not tell others why I ranted about those news articles. Indeed that is true. Why would anyone trust my judgement delivered without even a grain of supporting evidence? So, I’ve decided to write a short post on Facebook (shared on Twitter) and perhaps surprisingly in Korean (!) This may have been the first AI/ML-related (though, very

## Soft k-NN

[this post was originally posted here in March 2020 and has been ported here for easier access.] TL;DR: after all, isn’t $k$-NN all we do? in my course, i use $k$-NN as a bridge between a linear softmax classifier and a deep neural net via an adaptive radial basis function network. until this year, i’ve been considering the special case of $k=1$, i.e., 1-NN, only and from there on moved to the adaptive radial basis function network. i decided however to show them how $k$-NN with $k > 1$ could be implemented as a sequence of computational layers this year,