How is the k-Nearest Neighbors algorithm used in question answering systems?

How is the k-Nearest Neighbors algorithm used in question answering systems?

k-Nearest Neighbors algorithm is used in the Question Analysis Module, according to Research of Question Analysis Based on HNC and K Nearest Neighbor (2010).

See also my quick and dirty webpages:

• k-Nearest Neighbors & Question Answering 2014 | Meta-Guide.com
• Question Analysis Module | Meta-Guide.com