estimates for v w , but with high probability about f 1 /(f 1 + f 2 ) fraction of the occurrences used sense s 1 and f 2 /(f 1 + f 2 ) used sense s 2 , and the corresponding estimates for those two subpopulations converge to v s 1 and v s 2 respectively.
by construction, the estimate for v w is a linear combination of those for v s 1 and v s 2 .