Part of speech tagging is the process of determining the word class of a term used in the context of a query. For example, book is used as a noun in the book and a verb in wanted to book. ATG Search organizes its thesaurus by part of speech, allowing different parts of speech to have different term expansions. For example, the noun entry for accord contains pact, agreement, rapport, and treaty, and the verb entry for accord has agree, consort, give, grant, and reconcile.
If there is not enough information in the query to determine a term’s part of speech, ATG Search resorts to using all parts of speech for a term. This is quite common, because the majority of queries are keywords, not grammatical statements or phrases.
