 Unlike the existing estimators, our MCMC-based estimator is computed by samples of conditional loss distribution given the rare event of our interest.
<fluency>  Unlike the existing estimators, our MCMC-based estimator is computed by samples of conditional loss distribution given the rare event of our interest.
 Unlike the existing estimators, our MCMC-based estimator is computed by samples of conditional loss distribution given a rare event of our interest.