31 citations · 43 across the 9 of their papers we have counts for
9 papers
Orientation in Poisson Cluster Processes via Imaginary Bispectra
Conor Kresin, Yifu Tang, Boris Baeumer +1
We study what remains detectable about one-sided Poisson cluster processes after cluster orientation is erased. We construct matched reversible cluster nulls preserving intensity a…
Spectral analysis of multivariate stationary Hawkes processes
Yifu Tang, Conor Kresin, Boris Baeumer +1
We establish the asymptotic validity of frequency-domain inference for stationary multivariate Hawkes processes under mild conditions, bridging the gap between theory and applicati…
Asymptotic considerations in a Bayesian linear model with nonparametrically modelled time series innovations
Claudia Kirch, Alexander Meier, Renate Meyer +1
This paper considers a semiparametric approach within the general Bayesian linear model where the innovations consist of a stationary, mean zero Gaussian time series. While a param…
Zero-inflated Smoothing Spline (ZISS) Models for Individual-level Single-cell Temporal Data
Yifu Tang, Yi Zhang, Yue Wang +2
Recent advancements in single-cell RNA-sequencing (scRNA-seq) have enhanced our understanding of cell heterogeneity at a high resolution. With the ability to sequence over 10,000 c…
Bayesian nonparametric spectral analysis of locally stationary processes
Yifu Tang, Claudia Kirch, Jeong Eun Lee +1
Based on a novel dynamic Whittle likelihood approximation for locally stationary processes, a Bayesian nonparametric approach to estimating the time-varying spectral density is pro…
CPS Attack Detection under Limited Local Information in Cyber Security: A Multi-node Multi-class Classification Ensemble Approach
Junyi Liu, Yifu Tang, Haimeng Zhao +3
Cybersecurity breaches are the common anomalies for distributed cyber-physical systems (CPS). However, the cyber security breach classification is still a difficult problem, even u…
Reliable Community Search in Dynamic Networks
Yifu Tang, Jianxin Li, Nur Al Hasan Haldar +3
Searching for local communities is an important research problem that supports advanced data analysis in various complex networks, such as social networks, collaboration networks,…
A Hybrid Learning Approach to Detecting Regime Switches in Financial Markets
Peter Akioyamen, Yi Zhou Tang, Hussien Hussien
Financial markets are of much interest to researchers due to their dynamic and stochastic nature. With their relations to world populations, global economies and asset valuations,…
Posterior consistency for the spectral density of non-Gaussian stationary time series
Yifu Tang, Claudia Kirch, Jeong Eun Lee +1
Various nonparametric approaches for Bayesian spectral density estimation of stationary time series have been suggested in the literature, mostly based on the Whittle likelihood ap…