Whoever wrote the article must have done a cursory search at best, I'm surprised they didn't mention semantic hashing by Salakhutdinov & Hinton (2007) https://www.cs.utoronto.ca/~rsalakhu/papers/semantic_final.p...
Edit: also, talking about LSH, must check out FAISS library https://github.com/facebookresearch/faiss and the current SOTA http://ann-benchmarks.com/