116 citations · 590 across the 35 of their papers we have counts for
35 papers
Positivity of the Rational Function of Gillis, Reznick and Zeilberger
Yaming Yu
We prove that the power series expansion of the rational function of Gillis, Reznick and Zeilberger (1983) has only nonnegative coefficients.
An Inequality for the Correlation of Two Functions Operating on Symmetric Bivariate Normal Variables
Ran Hadad, Uri Erez, Yaming Yu
An inequality is derived for the correlation of two univariate functions operating on symmetric bivariate normal random variables. The inequality is a simple consequence of the Cau…
On Stochastic Comparisons of Order Statistics from Heterogeneous Exponential Samples
Yaming Yu
We show that the th order statistic from a heterogeneous sample of exponential random variables is larger than that from a homogeneous exponential sample in the sense…
On the Unique Crossing Conjecture of Diaconis and Perlman on Convolutions of Gamma Random Variables
Yaming Yu
Diaconis and Perlman (1990) conjecture that the distribution functions of two weighted sums of iid gamma random variables cross exactly once if one weight vector majorizes the othe…
Thompson Sampling in Dynamic Systems for Contextual Bandit Problems
Tianbing Xu, Yaming Yu, John Turner +1
We consider the multiarm bandit problems in the timevarying dynamic system for rich structural features. For the nonlinear dynamic model, we propose the approximate inference for t…
A Bayesian Analysis of the Correlations Among Sunspot Cycles
Yaming Yu, David A. van Dyk, Vinay L. Kashyap +1
Sunspot numbers form a comprehensive, long-duration proxy of solar activity and have been used numerous times to empirically investigate the properties of the solar cycle. A number…