296 citations · 921 across the 21 of their papers we have counts for
21 papers
Communication-Sensing Region for Cell-Free Massive MIMO ISAC Systems
Weihao Mao, Yang Lu, Chong-Yung Chi +3
This paper investigates the system model and the transmit beamforming design for the Cell-Free massive multi-input multi-output (MIMO) integrated sensing and communication (ISAC) s…
Differentially Private Federated Clustering over Non-IID Data
Yiwei Li, Shuai Wang, Chong-Yung Chi +1
In this paper, we investigate federated clustering (FedC) problem, that aims to accurately partition unlabeled data samples distributed over massive clients into finite clusters un…
Federated Stochastic Primal-dual Learning with Differential Privacy
Yiwei Li, Shuai Wang, Tsung-Hui Chang +1
Federated learning (FL) is a new paradigm that enables many clients to jointly train a machine learning (ML) model under the orchestration of a parameter server while keeping the l…
Stationarity of Time-Series on Graph via Bivariate Translation Invariance
Amin Jalili, Chong-Yung Chi
Stationarity is a cornerstone in classical signal processing (CSP) for modeling and characterizing various stochastic signals for the ensuing analysis. However, in many complex rea…
Translation Operator in Graph Signal Processing: A Generalized Approach
Amin Jalili, Sadid Sahami, Chong-Yung Chi
The notion of translation (shift) is straightforward in classical signal processing, however, it is challenging on an irregular graph structure. In this work, we present an approac…
Maximum Volume Inscribed Ellipsoid: A New Simplex-Structured Matrix Factorization Framework via Facet Enumeration and Convex Optimization
Chia-Hsiang Lin, Ruiyuan Wu, Wing-Kin Ma +2
Consider a structured matrix factorization model where one factor is restricted to have its columns lying in the unit simplex. This simplex-structured matrix factorization (SSMF) m…