Uncertainty quantification in the Bradley–Terry–Luce model
Uncertainty quantification in the Bradley–Terry–Luce model
复制标题
Bradley–Terry–Luce 模型中的不确定性量化
DOI:
10.1093/imaiai/iaac032
复制
发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Zhang, Anderson Y.
中科院分区:
文献类型:
--
作者:
Gao, Chao;Shen, Yandi;Zhang, Anderson Y.
The Bradley–Terry–Luce (BTL) model is a benchmark model for pairwise comparisons between individuals. Despite recent progress on the first-order asymptotics of several popular procedures, the understanding of uncertainty quantification in the BTL model remains largely incomplete, especially when the underlying comparison graph is sparse. In this paper, we fill this gap by focusing on two estimators that have received much recent attention: the maximum likelihood estimator (MLE) and the spectral estimator. Using a unified proof strategy, we derive sharp and uniform non-asymptotic expansions for both estimators in the sparsest possible regime (up to some poly-logarithmic factors) of the underlying comparison graph. These expansions allow us to obtain: (i) finite-dimensional central limit theorems for both estimators; (ii) construction of confidence intervals for individual ranks; (iii) optimal constant ofestimation, which is achieved by the MLE but not by the spectral estimator. Our proof is based on a self-consistent equation of the second-order remainder vector and a novel leave-two-out analysis.
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DOI:
10.1214/22-aos2175
发表时间:
2022
期刊:
The Annals of Statistics
影响因子:
--
作者:
Chen, Pinhan;Gao, Chao;Zhang, Anderson Y.
通讯作者:
Zhang, Anderson Y.
影响因子:
5.7
作者:
Neykov, Matey;Ning, Yang;Liu, Han
通讯作者:
Liu, Han
DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
Ruijian Han;Rougang Ye;Chunxi Tan;Kani Chen
通讯作者:
Kani Chen
影响因子:
0.5
作者:
L. R. Ford
通讯作者:
L. R. Ford
影响因子:
4.4
作者:
S. V. D. Pas;Botond Szab'o;A. Vaart
通讯作者:
S. V. D. Pas;Botond Szab'o;A. Vaart