Published Date: 2012
Source: Microsoft Labs
Title: Contextual Thesaurus
"This is a prototype Contextual Thesaurus developed by Microsoft Research. Actually, it’s quite a bit more than that: it’s an English-to-English machine translation system that employs the same architecture that the Microsoft Translator uses when translating different languages. To the best of our knowledge, this is the first large-scale paraphrasing system anywhere." - FAQ from source
NOTE: This thesaurus creates interesting visual topical map that is based on each word of a 4 to 8 word phrase. Some do not make sense, while other connections transform the way a person might rephrase their writing.