activity
20132024
most citedOn the Supremum of gamma-reflected Processes with Fractional Brownian Motion as Input

42 citations · 182 across the 34 of their papers we have counts for

collaborators

34 papers

stat.ME2024

Bayesian CART models for aggregate claim modeling

Yaojun Zhang, Lanpeng Ji, Georgios Aivaliotis +1

This paper proposes three types of Bayesian CART (or BCART) models for aggregate claim amount, namely, frequency-severity models, sequential models and joint models. We propose a g…

math.PR2024

Probability of entering an orthant by correlated fractional Brownian motion with drift: Exact asymptotics

Krzysztof Debicki, Lanpeng Ji, Svyatoslav Novikov

For , where are mutually independent fractional Brownian motions, we obtain the exact…

stat.ML2023

Bayesian CART models for insurance claims frequency

Yaojun Zhang, Lanpeng Ji, Georgios Aivaliotis +1

Accuracy and interpretability of a (non-life) insurance pricing model are essential qualities to ensure fair and transparent premiums for policy-holders, that reflect their risk. I…

math.PR2022

On the maxima of suprema of dependent Gaussian models

Lanpeng Ji, Xiaofan Peng

In this paper, we study the asymptotic distribution of the maxima of suprema of dependent Gaussian processes with trend. For different scales of the time horizon we obtain differen…

math.PR2022

Extreme value theory for a sequence of suprema of a class of Gaussian processes with trend

Lanpeng Ji, Xiaofan Peng

We investigate extreme value theory of a class of random sequences defined by the all-time suprema of aggregated self-similar Gaussian processes with trend. This study is motivated…

math.PR2020

Extrema of multi-dimensional Gaussian processes over random intervals

Lanpeng Ji, Xiaofan Peng

This paper studies the joint tail asymptotics of extrema of the multi-dimensional Gaussian process over random intervals defined as $$ P(u):=\mathbb{P}\left\{\cap_{i=1}^n \left(\su…