Publications (42)
Multilevel Monte Carlo theta EM scheme for SDDEs with small noise
Li Tan, Chenggui Yuan
In this paper, a multilevel Monte Carlo theta EM scheme is provided for stochastic differential delay equations with small noise. Under a global Lipschitz condition, the variance o…
3D Virtual Garment Modeling from RGB Images
Yi Xu, Shanglin Yang, Wei Sun +3
We present a novel approach that constructs 3D virtual garment models from photos. Unlike previous methods that require photos of a garment on a human model or a mannequin, our app…
Wellposedness and averaging principle for conditional distribution dependent SDEs driven by standard Brownian motions and fractional Brownian motions
Li Tan, Shengrong Wang
In this paper, we study a conditional distribution dependent stochastic differential equations driven by standard Brownian motion and fractional Brownian motion with Hurst exponent…
A note on strong convergence of implicit scheme for SDEs under local one-sided Lipschitz conditions
Li Tan, Chenggui Yuan
Under a local one-sided Lipschitz condition, Krylov [KR] proved the existence and uniqueness of the strong solutions for stochastic differential equations by using the Euler-Maruya…
A Received Power Model for Reconfigurable Intelligent Surface and Measurement-based Validations
Zipeng Wang, Li Tan, Haifan Yin +3
The idea of using a Reconfigurable Intelligent Surface (RIS) consisting of a large array of passive scattering elements to assist wireless communication systems has recently attrac…
RIS-aided Wireless Communications: Can RIS Beat Metal Plate?
Jiangfeng Hu, Haifan Yin, Li Tan +2
Reconfigurable Intelligent Surface (RIS) has recently been regarded as a paradigm-shifting technology beyond 5G, for its flexibility on smartly adjusting the response to the imping…
Soft Error Resilience and Failure Recovery for Continuum Dynamics Applications
Li Tan, Marc Charest, Nathan DeBardeleben +2
The persistently growing resilience concerns of large-scale computing systems today require not only generic fault tolerance approaches, but also application-level resilience, due…
Recommendation System in Advertising and Streaming Media: Unsupervised Data Enhancement Sequence Suggestions
Kowei Shih, Yi Han, Li Tan
Sequential recommendation is an extensively explored approach to capturing users' evolving preferences based on past interactions, aimed at predicting their next likely choice. Des…
Optimal Decision Making in High-Throughput Virtual Screening Pipelines
Hyun-Myung Woo, Xiaoning Qian, Li Tan +4
The need for efficient computational screening of molecular candidates that possess desired properties frequently arises in various scientific and engineering problems, including d…
Prototyping and real-world field trials of RIS-aided wireless communications
Xilong Pei, Haifan Yin, Li Tan +2
Reconfigurable intelligent surface (RIS) is a promising technology that has the potential to change the way we interact with the wireless propagating environment. In this paper, we…
A Well-typed Lightweight Situation Calculus
Li Tan
Situation calculus has been widely applied in Artificial Intelligence related fields. This formalism is considered as a dialect of logic programming language and mostly used in dyn…
MUVR: A Multi-Modal Untrimmed Video Retrieval Benchmark with Multi-Level Visual Correspondence
Yue Feng, Jinwei Hu, Qijia Lu +11
We propose the Multi-modal Untrimmed Video Retrieval task, along with a new benchmark (MUVR) to advance video retrieval for long-video platforms. MUVR aims to retrieve untrimmed vi…
Pandemic Drugs at Pandemic Speed: Infrastructure for Accelerating COVID-19 Drug Discovery with Hybrid Machine Learning- and Physics-based Simulations on High Performance Computers
Agastya P. Bhati, Shunzhou Wan, Dario Alfè +26
The race to meet the challenges of the global pandemic has served as a reminder that the existing drug discovery process is expensive, inefficient and slow. There is a major bottle…
A 3D Positioning-based Channel Estimation Method for RIS-aided mmWave Communications
Yaoshen Cui, Haifan Yin, Li Tan +1
A fundamental challenge in millimeter-wave (mmWave) communication is the susceptibility to blocking objects. One way to alleviate this problem is the use of reconfigurable intellig…
Convergence rate of nonlinear delayed neutral McKean-Vlasov SDEs driven by fractional Brownian motions
Shengrong Wang, Jie Xie, Li Tan
In this paper, our main aim is to investigate the strong convergence for a neutral McKean-Vlasov stochastic differential equation with super-linear delay driven by fractional Brown…
Scalable HPC and AI Infrastructure for COVID-19 Therapeutics
Hyungro Lee, Andre Merzky, Li Tan +15
COVID-19 has claimed more 1 million lives and resulted in over 40 million infections. There is an urgent need to identify drugs that can inhibit SARS-CoV-2. In response, the DOE re…
Motion Control of Two Mobile Robots under Allowable Collisions
Li Tan, Wei Ren, Xi-Ming Sun +1
This letter investigates the motion control problem of two mobile robots under allowable collisions. Here, the allowable collisions mean that the collisions do not damage the mobil…
Region-enhanced Deep Graph Convolutional Networks for Rumor Detection
Ge Wang, Li Tan, Tianbao Song +2
Social media has been rapidly developing in the public sphere due to its ease of spreading new information, which leads to the circulation of rumors. However, detecting rumors from…
Strong convergence of tamed theta scheme for superlinearly growing McKean-Vlasov NSDDEs driven by fractional Brownian motions
Li Tan, Shizhong Hu, Shengrong Wang
In this article, we study the McKean-Vlasov neutral stochastic differential delay equations driven by fractional Brownian motion with super-linearly growing coefficients, where the…
A classification of two-distance-transitive Cayley graphs over the generalized quaternion groups
Wei Jin, Pingshan Li, Li Tan
A non-complete graph is \emph{-distance-transitive} if, for and for any two vertex pairs and with the same distance in the graph, there exist…
Multi-user passive beamforming in RIS-aided communications and experimental validations
Zhibo Zhou, Haifan Yin, Li Tan +3
Reconfigurable intelligent surface (RIS) is a promising technology for future wireless communications due to its capability of optimizing the propagation environments. Nevertheless…
Convergence rates of theta-method for neutral SDDEs under non-globally Lipschitz continuous coefficients
Li Tan, Chenggui Yuan
This paper is concerned with strong convergence and almost sure convergence for neutral stochastic differential delay equations under non-globally Lipschitz continuous coefficients…
Reactive Planning based Control for Mobile Robots in Obstacle-Cluttered Environments
Li Tan, Junlin Xiong, Yan Wang +1
This paper addresses the motion control problem for mobile robots in obstacle-cluttered environments. The mobile robot has partial environment information only, and aims to move fr…
Multimodal Dual Emotion with Fusion of Visual Sentiment for Rumor Detection
Ge Wang, Li Tan, Ziliang Shang +1
In recent years, rumors have had a devastating impact on society, making rumor detection a significant challenge. However, the studies on rumor detection ignore the intense emotion…
IMPECCABLE: Integrated Modeling PipelinE for COVID Cure by Assessing Better LEads
Aymen Al Saadi, Dario Alfe, Yadu Babuji +33
The drug discovery process currently employed in the pharmaceutical industry typically requires about 10 years and $2-3 billion to deliver one new drug. This is both too expensive…
Stability of the LCD Model
Zhenting Hou, Li Tan, Dinghua Shi
In this paper, first-passage probability of Markov chains is used to get a strict proof of the existence of degree distribution of the LCD model presented by Bollobas (Random Struc…
Failure Analysis and Quantification for Contemporary and Future Supercomputers
Li Tan, Nathan DeBardeleben
Large-scale computing systems today are assembled by numerous computing units for massive computational capability needed to solve problems at scale, which enables failures common…
RIS-Aided Wireless Communications: Prototyping, Adaptive Beamforming, and Indoor/Outdoor Field Trials
Xilong Pei, Haifan Yin, Li Tan +5
The prospects of using a Reconfigurable Intelligent Surface (RIS) to aid wireless communication systems have recently received much attention from academia and industry. Most paper…
Strong convergence of tamed -EM scheme for neutral SDDEs with one-sided Lipschitz drift
Li Tan, Chenggui Yuan
This paper is concerned with strong convergence of a tamed -Euler-Maruyama scheme for neutral stochastic differential delay equations with superlinearly growing coefficients. W…
Realization of t-bit semiclassical quantum Fourier transform on IBM's quantum cloud computer
Fu Xiang-qun, Bao Wan-su, Huang He-liang +5
To overcome the difficulty of realizing large-scale quantum Fourier transform (QFT) within existing technology, this paper presents a resource-saving method, namely t-bit semiclass…
RIS with insufficient phase shifting capability: Modeling, beamforming, and experimental validations
Lin Cao, Haifan Yin, Li Tan +1
Most research works on reconfigurable intelligent surfaces (RIS) rely on idealized models of the reflection coefficients, i.e., uniform reflection amplitude for any phase and suffi…
Holographic interference surface: A proof of concept based on the principle of interferometry
Haifan Yin, Jindiao Huang, Ruikun Zhang +2
Revolutionizing communication architectures to achieve a balance between enhanced performance and improved efficiency is becoming increasingly critical for wireless communications…
Dense Voxel 3D Reconstruction Using a Monocular Event Camera
Haodong Chen, Vera Chung, Li Tan +1
Event cameras are sensors inspired by biological systems that specialize in capturing changes in brightness. These emerging cameras offer many advantages over conventional frame-ba…
Tight lower bound for the spectral radius of connected graphs with given matching number
Xinmin Hou, Li Tan
The paper establishes a tight lower bound for the spectral radius of connected graphs with a given matching number and characterizes the extremal graphs when the matching number di…
Leveraging Reaction-aware Substructures for Retrosynthesis Analysis
Lei Fang, Junren Li, Ming Zhao +2
Retrosynthesis analysis is a critical task in organic chemistry central to many important industries. Previously, various machine learning approaches have achieved promising result…
From Monomers to Self-Assembled Monolayers: The Evolution of Molecular Mobility with Structural Confinements
Alexandre Dhotel, Ziguang Chen, Jianing Sun +5
The effect of structural constriction on molecular mobility is investigated by broadband dielectric spectroscopy (BDS) within three types of molecular arrangements: monomers, oligo…
DISTRIBUTEDANN: Efficient Scaling of a Single DISKANN Graph Across Thousands of Computers
Philip Adams, Menghao Li, Shi Zhang +6
We present DISTRIBUTEDANN, a distributed vector search service that makes it possible to search over a single 50 billion vector graph index spread across over a thousand machines t…
Strong convergence rate of the truncated Euler-Maruyama method for stochastic differential delay equations with Poisson jumps
Shuaibin Gao, Junhao Hu, Li Tan +1
In this paper, we study a class of super-linear stochastic differential delay equations with Poisson jumps (SDDEwPJs). The convergence and rate of the convergence of the truncated…
Algorithmic Energy Saving for Parallel Cholesky, LU, and QR Factorizations
Li Tan, Zizhong Chen
The pressing demands of improving energy efficiency for high performance scientific computing have motivated a large body of software-controlled hard- ware solutions using Dynamic…
Convergence rates of truncated EM scheme for NSDDEs
Li Tan, Chenggui Yuan
This paper is concerned with strong convergence of the truncated Euler-Maruyama scheme for neutral stochastic differential delay equations driven by Brownian motion and pure jumps…
Methodological Explainability Evaluation of an Interpretable Deep Learning Model for Post-Hepatectomy Liver Failure Prediction Incorporating Counterfactual Explanations and Layerwise Relevance Propagation: A Prospective In Silico Trial
Xian Zhong, Zohaib Salahuddin, Yi Chen +15
Artificial intelligence (AI)-based decision support systems have demonstrated value in predicting post-hepatectomy liver failure (PHLF) in hepatocellular carcinoma (HCC). However,…
Research Status of Deep Learning Methods for Rumor Detection
Li Tan, Ge Wang, Feiyang Jia +1
To manage the rumors in social media to reduce the harm of rumors in society. Many studies used methods of deep learning to detect rumors in open networks. To comprehensively sort…