Publications (38)
FCCDN: Feature Constraint Network for VHR Image Change Detection
Pan Chen, Danfeng Hong, Zhengchao Chen +3
Change detection is the process of identifying pixelwise differences in bitemporal co-registered images. It is of great significance to Earth observations. Recently, with the emerg…
Parameter efficient dendritic-tree neurons outperform perceptrons
Ziwen Han, Evgeniya Gorobets, Pan Chen
Biological neurons are more powerful than artificial perceptrons, in part due to complex dendritic input computations. Inspired to empower the perceptron with biologically inspired…
Manipulation of polar vortex chirality in oxide superlattices
Pan Chen, Congbing Tan, Zhexin Jiang +18
Topological polar vortices that are the electric analogues of magnetic objects, present great potential in applications of future nanoelectronics due to their nanometer size, anoma…
The Lightest 2D Nanomaterial: Freestanding Ultrathin Li Nanosheets by in-situ Electron Microscopy
Muhua Sun, Nore Stolte, Jianlin Wang +7
Lithium (Li) is the simplest metal and the lightest solid element. Here we report the first demonstration of controlled growth of two-dimensional (2D) ultrathin Li nanosheets with…
A unified approach to exact solutions of time-dependent Lie-algebraic quantum systems
Jian Qi Shen, Hong Yi Zhu, Pan Chen
By using the Lewis-Riesenfeld theory and the invariant-related unitary transformation formulation, the exact solutions of the {\it time-dependent} Schrödinger equations which gove…
Physics-Guided Deep Unfolding for Blind Cross-Sensor Spectral Super-Resolution via Learning the Spectral Transformation Function
Zhaolin Li, Jinsong Chen, Shanxin Guo +3
Hyperspectral imaging provides rich spectral information for quantitative remote sensing, yet hyperspectral sensors remain costly and thus unavailable in many UAV deployments. Spec…
A network-based biomarkers discovery of Cold/Hot ZHENG chronic gastritis and Cold/Hot herbs of formulae
Boyang Wang, Pan Chen, Peng Zhang +1
Objective: To discover biomarkers and uncover the mechanism of Cold/Hot ZHENG (syndrome in traditional Chinese medicine) chronic gastritis (CG) and Cold/Hot herbs in traditional Ch…
Energy quantization for Dirac systems over non-collapsed degenerating Einstein manifolds
Pan Chen, Youmin Chen, Miaomiao Zhu
We study energy quantization for a class of Dirac systems on compact spin Einstein manifolds of dimension \(n\). For a sequence of solutions to a nonlinear Dirac system with unifor…
Schema for In-Context Learning
Pan Chen, Shaohong Chen, Mark Wang +4
In-Context Learning (ICL) enables transformer-based language models to adapt to new tasks by conditioning on demonstration examples. However, traditional example-driven in-context…
Ferromagnetic Two-dimensional Electron Gases with Magnetic Doping and Proximity Effects
Zixin Fan, Jiale Chen, Qiangtao Sui +10
The advent of magnetic two-dimensional electron gases (2DEGs) at oxide interfaces has provided new opportunities in the field of spintronics. The enhancement of magnetism in 2DEGs…
Anomaly Detection by One Class Latent Regularized Networks
Chengwei Chen, Pan Chen, Haichuan Song +4
Anomaly detection is a fundamental problem in computer vision area with many real-world applications. Given a wide range of images belonging to the normal class, emerging from some…
Multiplicity and Nonrelativistic limit of Bound States of Nonlinear Dirac Equations on Noncompact Metric Graphs with Localized Nonlinearities
Pan Chen, Qi Guo
In this paper, we investigate the multiplicity of normalized solutions to a nonlinear Dirac equation with localized nonlinearities on noncompact metric graphs under the \(L^2\)-con…
Interplay of spin-orbit coupling and trigonal crystal field enhances superconductivity in (111)
Long Cheng, Jia Liu, Tongying Liu +10
In conventional superconductors, bulk physical properties typically degrade as the film thickness approaches the two-dimensional (2D) limit. Here in the (111) oriented LaAlO3/KTaO3…
An Attention-Fused Network for Semantic Segmentation of Very-High-Resolution Remote Sensing Imagery
Xuan Yang, Shanshan Li, Zhengchao Chen +5
Semantic segmentation is an essential part of deep learning. In recent years, with the development of remote sensing big data, semantic segmentation has been increasingly used in r…
Fake-signal-and-cheating attack on quantum secret sharing
Fu-Guo Deng, Xi-Han Li, Pan Chen +2
We present a fake-signal-and-cheating attack strategy for the dishonest agent in quantum secret sharing (QSS) to steal the information of the other agents' fully and freely. It is…
TreeReader: A Hierarchical Academic Paper Reader Powered by Language Models
Zijian Zhang, Pan Chen, Fangshi Du +4
Efficiently navigating and understanding academic papers is crucial for scientific progress. Traditional linear formats like PDF and HTML can cause cognitive overload and obscure a…
Memento: Personalized RAG-Style Long-Retention Data Scaling for META Ads Recommendation
Xiaoyu Chen, Ruichen Wang, Jieming Di +21
Modeling of long history data suffers from long-context window attention dilution, system efficiency and catastrophic forgetting problems, where naive linear scaling approach like…
Exact solutions of time-dependent three-generator systems
Jian-Qi Shen, Hong-Yi Zhu, Pan Chen
There exist a number of typical and interesting systems or models which possess three-generator Lie-algebraic structure in atomic physics, quantum optics, nuclear physics and laser…
Full Duplex Assisted Inter-cell Interference Cancellation in Heterogeneous Networks
Shengqian Han, Chenyang Yang, Pan Chen
The paper studies the suppression of cross-tier inter-cell interference (ICI) generated by a macro base station (MBS) to pico user equipments (PUEs) in heterogeneous networks (HetN…
Statistical Consequences of Dueling Bandits
Nayan Saxena, Pan Chen, Emmy Liu
Multi-Armed-Bandit frameworks have often been used by researchers to assess educational interventions, however, recent work has shown that it is more beneficial for a student to pr…
MEMS Vapor Cells-based Rydberg-atom Electrometry Toward Miniaturization and High Sensitivity
Yintao Ma, Beibei Sun, Pan Chen +7
Rydberg-atom electrometry, as an emerging cutting-edge technology, features high sensitivity, broad bandwidth, calibration-free operation, and beyond. However, until now the key at…
Opportunities for Adaptive Experiments to Enable Continuous Improvement in Computer Science Education
Ilya Musabirov, Angela Zavaleta-Bernuy, Pan Chen +2
Randomized A/B comparisons of alternative pedagogical strategies or other course improvements could provide useful empirical evidence for instructor decision-making. However, tradi…
Acoustic anomaly detection via latent regularized gaussian mixture generative adversarial networks
Chengwei Chen, Pan Chen, Lingyu Yang +4
Acoustic anomaly detection aims at distinguishing abnormal acoustic signals from the normal ones. It suffers from the class imbalance issue and the lacking in the abnormal instance…
Nonrelativistic Limit of Normalized Solutions to a class of nonlinear Dirac equations
Pan Chen, Yanheng Ding, Qi Guo +1
In this paper, we investigate the nonrelativistic limit of normalized solutions to a nonlinear Dirac equation as given below: \begin{equation*} \begin{cases} &-i c\sum\limits_{k=1}…
Existence and nonrelativistic limit of ground states to nonlinear Dirac equation
Pan Chen, Yanheng Ding, Qi Guo
This paper explores the existence and properties of ground states, including both energy and action ground states, for nonlinear Dirac equations with power-type potentials. \begin{…
Long and Short-Term Constraints Driven Safe Reinforcement Learning for Autonomous Driving
Xuemin Hu, Pan Chen, Yijun Wen +2
Reinforcement learning (RL) has been widely used in decision-making and control tasks, but the risk is very high for the agent in the training process due to the requirements of in…
TreeWriter: AI-Assisted Hierarchical Planning and Writing for Long-Form Documents
Zijian Zhang, Fangshi Du, Xingjian Liu +5
Long documents pose many challenges to current intelligent writing systems. These include maintaining consistency across sections, sustaining efficient planning and writing as docu…
Contact resistance and interfacial engineering: Advances in high-performance 2D-TMD based devices
Xiongfang Liu, Kaijian Xing, Chi Sin Tang +7
The development of advanced electronic devices is contingent upon sustainable material development and pioneering research breakthroughs. Traditional semiconductor-based electronic…
Exact time-dependent decoherence factor and its adiabatic classical limit
Jian-Qi Shen, Pan Chen, Hong Mao
The present paper finds the complete set of exact solutions of the general time-dependent dynamical models for quantum decoherence, by making use of the Lewis-Riesenfeld invariant…
A Fast and Precise Method for Large-Scale Land-Use Mapping Based on Deep Learning
Xuan Yang, Zhengchao Chen, Baipeng Li +3
The land-use map is an important data that can reflect the use and transformation of human land, and can provide valuable reference for land-use planning. For the traditional image…
Electric-field control of the nucleation and motion of isolated three-fold polar vertices
Mingqiang Li, Tiannan Yang, Pan Chen +12
Recently various topological polar structures have been discovered in oxide thin films. Despite the increasing evidence of their switchability under electrical and/or mechanical fi…
P2M2-Net: Part-Aware Prompt-Guided Multimodal Point Cloud Completion
Linlian Jiang, Pan Chen, Ye Wang +2
Inferring missing regions from severely occluded point clouds is highly challenging. Especially for 3D shapes with rich geometry and structure details, inherent ambiguities of the…
Asymptotic properties of non-relativistic limit for pseudo-relativistic Hartree equations
Pan Chen, Vittorio Coti Zelati, Yuanhong Wei
In this paper, we study the asymptotic behavior of energy and action ground states to the following pseudo-relativistic Hartree equation \[ \left(\sqrt{-c^2Î+m^2c^4}-mc^2\right)u…
Understanding User Perspectives on Prompts for Brief Reflection on Troubling Emotions
Ananya Bhattacharjee, Pan Chen, Linjia Zhou +6
We investigate users' perspectives on an online reflective question activity (RQA) that prompts people to externalize their underlying emotions on a troubling situation. Inspired b…
Atomic Imaging of Mechanically Induced Topological Transition of Ferroelectric Vortices
Pan Chen, Xiangli Zhong, Jacob A. Zorn +14
Ferroelectric vortices formed through complex lattice-charge interactions have great potential in applications for future nanoelectronics such as memories. For practical applicatio…
Atomic-scale observations of electrical and mechanical manipulation of topological polar flux-closure
Xiaomei Li, Congbing Tan, Peng Gao +12
The ability to controllably manipulate the complex topological polar configurations, such as polar flux-closure via external stimuli, enables many applications in electromechanical…
Code as Agent Harness
Xuying Ning, Katherine Tieu, Dongqi Fu +39
Recent large language models (LLMs) have demonstrated strong capabilities in understanding and generating code, from competitive programming to repository-level software engineerin…
Non-trivial Kazhdan-Lusztig coefficients of affine Weyl groups
Pan Chen
In this paper we show that the leading coefficient of some Kazhdan-Lusztig polynomials with in an affine Weyl group of type (resp. $\tilde C_…