This parameter enables and disables the use of statistical sampling for calculating the terms in binary facets. This provides significantly improved runtime performance and reduced memory usage.
You can disable this setting to make the resulting data more accurate, but it will significantly slow down performance.
True , fuzzy faceting of binary facets begins when the following configuration parameters reach a specified threshold:
CoreServicesFuzzyBinaryFacetsThreshold(Default = 10000)
CoreServicesFuzzyBinaryFacetsSamplingPerc(Default = 0)
See the descriptions of these parameters for additional details.