Importance sampling draws from a density instead of and averages , the payoff times the likelihood ratio (a Radon–Nikodym derivative); it is unbiased whenever where .
Quantitative Finance · Glosario
Quantitative Finance · Glosario
Importance sampling draws from a density instead of and averages , the payoff times the likelihood ratio (a Radon–Nikodym derivative); it is unbiased whenever where .