activity
20182023
most citedChange-point detection in dynamic networks via graphon estimation

23 citations · 95 across the 16 of their papers we have counts for

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Showing 2022Show all

6 papers · 1 filter

eess.AS2022★ 2 cited

Probing Deep Speaker Embeddings for Speaker-related Tasks

Zifeng Zhao, Ding Pan, Junyi Peng +1

Deep speaker embeddings have shown promising results in speaker recognition, as well as in other speaker-related tasks. However, some issues are still under explored, for instance,…

math.ST2022★ 8 cited

Change point inference in high-dimensional regression models under temporal dependence

Haotian Xu, Daren Wang, Zifeng Zhao +1

This paper concerns about the limiting distributions of change point estimators, in a high-dimensional linear regression time series context, where a regression object $(y_t, X_t)…

stat.ME2022★ 5 cited

Change-point Detection for Sparse and Dense Functional Data in General Dimensions

Carlos Misael Madrid Padilla, Daren Wang, Zifeng Zhao +1

We study the problem of change-point detection and localisation for functional data sequentially observed on a general d-dimensional space, where we allow the functional curves to…

math.ST2022★ 3 cited

Optimal Change-point Testing for High-dimensional Linear Models with Temporal Dependence

Zifeng Zhao, Xiaokai Luo, Zongge Liu +1

In this paper, we study change-point testing for high-dimensional linear models, an important problem that has not been well explored in the literature. Specifically, we propose a…

eess.AS2022

Speaker-Aware Mixture of Mixtures Training for Weakly Supervised Speaker Extraction

Zifeng Zhao, Rongzhi Gu, Dongchao Yang +2

Dominant researches adopt supervised training for speaker extraction, while the scarcity of ideally clean corpus and channel mismatch problem are rarely considered. To this end, we…

eess.AS2022

Target Confusion in End-to-end Speaker Extraction: Analysis and Approaches

Zifeng Zhao, Dongchao Yang, Rongzhi Gu +2

Recently, end-to-end speaker extraction has attracted increasing attention and shown promising results. However, its performance is often inferior to that of a blind source separat…