Yufan Li

activity

20182024

collaborators

6 papers

math.CO2024

Size Ramsey numbers of small graphs versus fans or paths

Yufan Li, Yanbo Zhang, Yunqing Zhang

For two graphs $G_{1}$ and $G_{2}$ , the size Ramsey number $r^(G_{1}, G_{2})$ is the smallest positive integer $m$ for which there exists a graph $G$ of size $m$ such that for any red-…

stat.ML2023

Balancing Risk and Reward: An Automated Phased Release Strategy

Yufan Li, Jialiang Mao, Iavor Bojinov

Phased releases are a common strategy in the technology industry for gradually releasing new products or updates through a sequence of A/B tests in which the number of treated unit…

cs.IT2022

Random linear estimation with rotationally-invariant designs: Asymptotics at high temperature

Yufan Li, Zhou Fan, Subhabrata Sen +1

We study estimation in the linear model $y = A β^{⋆} + ε$ , in a Bayesian setting where $β^{⋆}$ has an entrywise i.i.d. prior and the design $A$ is rotationally-invariant in law. In…

cs.CV2021

Culture-inspired Multi-modal Color Palette Generation and Colorization: A Chinese Youth Subculture Case

Yufan Li, Jinggang Zhuo, Ling Fan +1

Color is an essential component of graphic design, acting not only as a visual factor but also carrying cultural implications. However, existing research on algorithmic color palet…

stat.ME2019

Improve Orthogonal GARCH with Hidden Markov Model

Yufan Li

Orthogonal Generalized Autoregressive Conditional Heteroskedasticity model (OGARCH) is widely used in finance industry to produce volatility and correlation forecasts. We show that…

math.ST2018

A Divergent Random Walk on Stairs

Yufan Li, Jeffery Rosenthal

We consider a state-dependent, time-dependent, discrete random walks $X_{t}^{{a_{n}}}$ defined on natural numbers $N$ (bent to a "stair" in $N^{2}$ ) where the random…