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We have to stop ignoring AI’s hallucination problem
(www.theverge.com)
This is a most excellent place for technology news and articles.
Yes, synonym searching doesn't strictly mean the thesaurus. There are a lot of different ways to connect related terms and some variation in how they are handled from one system to the next. Letting machine learning into the mix is a very new step in a process that Library and Information Sci has been working on for decades.