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Heejong Bong

3 accepted papers

2022

Generalized Results for the Existence and Consistency of the MLE in the Bradley-Terry-Luce Model

ICML 2022oral

Ranking problems based on pairwise comparisons, such as those arising in online gaming, often involve a large pool of items to order. In these situations, the gap in performance between any two items can be significant, and the smallest and largest winning probabilities can be very close to zero or…

2020

Latent Dynamic Factor Analysis of High-Dimensional Neural Recordings

NeurIPS 2020poster

High-dimensional neural recordings across multiple brain regions can be used to establish functional connectivity with good spatial and temporal resolution. We designed and implemented a novel method, Latent Dynamic Factor Analysis of High-dimensional time series (LDFA-H), which combines (a) a new a…

2020

Nonparametric Estimation in the Dynamic Bradley-Terry Model

AISTATS 2020poster

We propose a time-varying generalization of the Bradley-Terry model that allows for nonparametric modeling of dynamic global rankings of distinct teams. We develop a novel estimator that relies on kernel smoothing to pre-process the pairwise comparisons over time and is applicable in sparse settings…