6 citations · 16 across the 9 of their papers we have counts for
11 papers
Impact of resource distributions on the competition of species in stream environment
Tung D. Nguyen, Yixiang Wu, Tingting Tang +4
Our earlier work in \cite{nguyen2022population} shows that concentrating the resources on the upstream end tends to maximize the total biomass in a metapopulation model for a strea…
An Admissible Shift-Consistent Method for Recommender Systems
Tung Nguyen, Jeffrey Uhlmann
In this paper, we propose a new constraint, called shift-consistency, for solving matrix/tensor completion problems in the context of recommender systems. Our method provably guara…
Imposing Consistency Properties on Blackbox Systems with Applications to SVD-Based Recommender Systems
Tung Nguyen, Jeffrey Uhlmann
In this paper we discuss pre- and post-processing methods to induce desired consistency and/or invariance properties in blackbox systems, e.g., AI-based. We demonstrate our approac…
Absolute Concentration Robustness and Multistationarity in Reaction Networks: Conditions for Coexistence
Nidhi Kaihnsa, Tung Nguyen, Anne Shiu
Many reaction networks arising in applications are multistationary, that is, they have the capacity for more than one steady state; while some networks exhibit absolute concentrati…
Bifunctional enzyme provides absolute concentration robustness in multisite covalent modification networks
Badal Joshi, Tung D. Nguyen
Biochemical covalent modification networks exhibit a remarkable suite of steady state and dynamical properties such as multistationarity, oscillations, ultrasensitivity and absolut…
Prevalence of multistationarity and absolute concentration robustness in reaction networks
Badal Joshi, Nidhi Kaihnsa, Tung D. Nguyen +1
For reaction networks arising in systems biology, the capacity for two or more steady states, that is, multistationarity, is an important property that underlies biochemical switch…
Maximizing Metapopulation Growth Rate and Biomass in Stream Networks
Tung D. Nguyen, Yixiang Wu, Amy Veprauskas +9
We consider the logistic metapopulation model over a stream network and use the metapopulation growth rate and the total biomass (of the positive equilibrium) as metrics for differ…
A Simple and Scalable Tensor Completion Algorithm via Latent Invariant Constraint for Recommendation System
Tung Nguyen, Sang T. Truong, Jeffrey Uhlmann
In this paper we provide a latent-variable formulation and solution to the recommender system (RS) problem in terms of a fundamental property that any reasonable solution should be…
Tensor Completion with Provable Consistency and Fairness Guarantees for Recommender Systems
Tung Nguyen, Jeffrey Uhlmann
We introduce a new consistency-based approach for defining and solving nonnegative/positive matrix and tensor completion problems. The novelty of the framework is that instead of a…
Canonical Tensor Scaling
Tung D. Nguyen, Jeffrey Uhlmann
In this paper we generalize the canonical positive scaling of rows and columns of a matrix to the scaling of selected-rank subtensors of an arbitrary tensor. We expect our results…
Results on stochastic reaction networks with non-mass action kinetics
David F. Anderson, Tung D. Nguyen
In 2010, Anderson, Craciun, and Kurtz showed that if a deterministically modeled reaction network is complex balanced, then the associated stochastic model admits a stationary dist…