Finding near-duplicates with Jaccard similarity and MinHash Comments

LPT: If you lose your hotel room key cards, be sure to specify you want *new* keys, not duplicates. There are, in most key systems, two ways to make hotel room key cards. You can create a key which is what’s done when you check in and that wipes all previous guest keys from the lock (either at the moment of creation for online locks or when you first use them for offline locks). You can alternatively duplicate keys which just creates a copy of…

Alibaba Listing Duplicates? I’m looking at a product listing and I see two different sellers listing the same product. One is for $1,500 per unit (Company A), and the other is $50-$100 (Company B). The same product, the sellers have similar names (Very similar). They both have a verified seller badge, and cite SGS for their verification. A few minutes later, I see that Cam…