Publications (66)
On the Channel Correlation in Reconfigurable Intelligent Surface-Aided System
Kuang-Hao, Liu
This works explores the correlation between channels in reconfigurable intelligent surface (RIS)-aided communication systems. In this type of system, an RIS made up of many passive…
FinReporting: An Agentic Workflow for Localized Reporting of Cross-Jurisdiction Financial Disclosures
Fan Zhang, Mingzi Song, Rania Elbadry +20
Financial reporting systems increasingly leverage Large Language Models (LLMs) to extract and summarize corporate disclosures. However, most existing approaches assume a single-mar…
UV and EUV Emissions at the Flare Foot-points Observed by AIA
Jiong Qiu, Zoe Sturrock, Dana W. Longcope +3
A solar flare is composed of impulsive energy release events by magnetic reconnection, which forms and heats flare loops. Recent studies have revealed a two-phase evolution pattern…
An Overview of Mixing Search Techniques
Tiehui, Liu
The search for mixing may carry a large discovery potential for new physics since the mixing rate is expected to be small in the Standard Model. This…
Multi-tier Network Performance Analysis using a Shotgun Cellular System
Prasanna Madhusudhanan, Juan G. Restrepo, Youjian +3
This paper studies the carrier-to-interference ratio (CIR) and carrier-to-interference-plus-noise ratio (CINR) performance at the mobile station (MS) within a multi-tier network co…
Pauli blocking and final-state interaction in electron-nucleus quasielastic scattering
Lon-chang, Liu
The nucleon final-state interaction in inclusive electron-nucleus quasielastic scattering is studied. Based on the unitarity equation satisfied by the scattering-wave operators, a…
Sensitivity analysis in longitudinal clinical trials via distributional imputation
Siyi Liu, Shu Yang, Yilong Zhang +2
Missing data is inevitable in longitudinal clinical trials. Conventionally, the missing at random assumption is assumed to handle missingness, which however is unverifiable empiric…
Understanding the Role of Context in Creating Enjoyable Co-Located Interactions
Szu-Yu, Liu, Brian A. Smith +2
In recent years, public discourse has blamed digital technologies for making people feel "alone together," distracting us from engaging with one another, even when we are interacti…
Overview of EXL-50 Research Progress and Future Plan
Yuejiang Shi, Yumin Wang, Bing Liu +37
XuanLong-50 (EXL-50) is the first medium-size spherical torus (ST) in China, with the toroidal field at major radius at 50 cm around 0.5T. CS-free and non-inductive current drive v…
Kubric: A scalable dataset generator
Klaus Greff, Francois Belletti, Lucas Beyer +32
Data is the driving force of machine learning, with the amount and quality of training data often being more important for the performance of a system than architecture and trainin…
Humanity's Last Exam
Long Phan, Alice Gatti, Ziwen Han +1144
Benchmarks are important tools for tracking the rapid advancements in large language model (LLM) capabilities. However, benchmarks are not keeping pace in difficulty: LLMs now achi…
Maximum Likelihood Fitting of Tidal Streams With Application to the Sagittarius Dwarf Tidal Tails
Nathan Cole, Heidi Jo Newberg, Malik Magdon-Ismail +10
We present a maximum likelihood method for determining the spatial properties of tidal debris and of the Galactic spheroid. With this method we characterize Sagittarius debris usin…
Robust analyses for longitudinal clinical trials with missing and non-normal continuous outcomes
Siyi Liu, Yilong Zhang, Gregory T Golm +3
Missing data is unavoidable in longitudinal clinical trials, and outcomes are not always normally distributed. In the presence of outliers or heavy-tailed distributions, the conven…
Vronicle: A System for Producing Videos with Verifiable Provenance
Yuxin, Liu, Yoshimichi Nakatsuka +3
Demonstrating the veracity of videos is a longstanding problem that has recently become more urgent and acute. It is extremely hard to accurately detect manipulated videos using co…
Interference and nuclear medium effects on the eta-mesic nuclear spectrum
Q. Haider, Lon-chang, Liu
The missing-mass spectrum obtained in a recoil-free transfer reaction p(Al,He)p'X is analyzed. We find that the observed peak structure arises from the coheren…
FinPersona-Bench: A Benchmark for Longitudinal Psychometric Stability of Autonomous Financial Agents
Muhammad Usman Safder, Ayesha Gull, Rania Elbadry +7
Large Language Models (LLMs) are increasingly deployed as autonomous financial agents initialized with explicit behavioral mandates such as "preserve capital" or "avoid speculative…
Modeling of cosmic rays and near-IR photons in aluminum KIDs
Elijah Kane, Chris Albert, Ritoban Basu Thakur +13
The PRobe far-Infrared Mission for Astrophysics (PRIMA) is working to develop kinetic inductance detectors (KIDs) that can meet the sensitivity targets of a far-infrared spectromet…
Duality, Polite Water-filling, and Optimization for MIMO B-MAC Interference Networks and iTree Networks
An Liu, Youjian, Liu +2
This paper gives the long sought network version of water-filling named as polite water-filling. Unlike in single-user MIMO channels, where no one uses general purpose optimization…
Directly tracing cool filamentary accretion over >100 kpc into the interstellar medium of a quasar host at z=1
Sean D. Johnson, Joop Schaye, Gregory L. Walth +11
We report the discovery of giant (50-100 kpc) [O II] emitting nebulae with the Multi-Unit Spectroscopic Explorer (MUSE) in the field of TXS 0206-048, a luminous quasar at z=1.13. D…
Early Architecture Concepts for the Habitable Worlds Observatory -- System Design, Modeling, and Analysis
Alice, Liu, Marie Levine +30
The Habitable Worlds Observatory (HWO), NASA's next flagship science mission, follows in the tradition of the Nancy Grace Roman Space Telescope and other preceding great observator…
An ensemble study of turbulence in extended QSO nebulae at --1
Mandy C. Chen, Hsiao-Wen Chen, Michael Rauch +10
Turbulent motions in the circumgalactic medium (CGM) play a critical role in regulating the evolution of galaxies, yet their detailed characterization remains elusive. Using two-di…
The Morphology and Kinematics of a Giant, Symmetric Nebula Around a Radio-Loud Quasar 3C57: Extended Rotating Gas or Biconical Outflows?
Zhuoqi, Liu, Sean D. Johnson +12
Gas flows between galaxies and the CGM play a crucial role in galaxy evolution. When ionized by a quasar, these gas flows can be directly traced as giant nebulae. We present a stud…
Understanding Machine Learning Paradigms through the Lens of Statistical Thermodynamics: A tutorial
Star, Liu
This tutorial investigates the convergence of statistical mechanics and learning theory, elucidating the potential enhancements in machine learning methodologies through the integr…
Research on Parallel SVM Algorithm Based on Cascade SVM
Yi Cheng, Liu, XiaoYan
Cascade SVM (CSVM) can group datasets and train subsets in parallel, which greatly reduces the training time and memory consumption. However, the model accuracy obtained by using t…
Technical Report: MIMO B-MAC Interference Network Optimization under Rate Constraints by Polite Water-filling and Duality
An Liu, Youjian, Liu +2
We take two new approaches to design efficient algorithms for transmitter optimization under rate constraints to guarantee the Quality of Service in general MIMO interference netwo…
GMPilot: An Expert AI Agent For FDA cGMP Compliance
Xiaohan Wang, Nan Zhang, Sulene Han +6
The pharmaceutical industry is facing challenges with quality management such as high costs of compliance, slow responses and disjointed knowledge. This paper presents GMPilot, a d…
Developing an AI-Guided Assistant Device for the Deaf and Hearing Impaired
Jiayu, Liu
This study aims to develop a deep learning system for an accessibility device for the deaf or hearing impaired. The device will accurately localize and identify sound sources in re…
Tight-Binding Bandstructure of and phase GaO and AlO
Yifan, Zhang, Mengren +3
Rapid design and development of the emergent ultra-wide bandgap semiconductors GaO and AlO requires a compact model of their electronic structures, accurate over th…
Closing the "Quantum Supremacy" Gap: Achieving Real-Time Simulation of a Random Quantum Circuit Using a New Sunway Supercomputer
Yong, Liu, Xin +13
We develop a high-performance tensor-based simulator for random quantum circuits(RQCs) on the new Sunway supercomputer. Our major innovations include: (1) a near-optimal slicing sc…
More than 3-mm-long carrier diffusion and strong absorption over the full solar spectrum in copper oxide and selenium composite film
Fei Gao, Rongrong Gao, Hao Liu +5
Usually, single-crystal material has a longer carrier diffusion length due to fewer defects. Here, we report a nano/amorphous copper oxide and selenium (COS) composite film prepare…
ECTraj: Enhanced Consistency Training for Multi-Agent Trajectory Prediction
Alen Mrdovic, Qingze, Liu +6
Diffusion models for multi-agent trajectory prediction are limited by iterative denoising, which causes inference latency that hinders their use in time-critical settings like auto…
From Defects to Demands: A Unified, Iterative, and Heuristically Guided LLM-Based Framework for Automated Software Repair and Requirement Realization
Alex, Liu, Vivian +1
This manuscript signals a new era in the integration of artificial intelligence with software engineering, placing machines at the pinnacle of coding capability. We present a forma…
QoS-Aware Downlink Beamforming for Joint Transmission in Multi-Cell Networks
Chen-Yen Lin, Kuang-Hao, Liu
Multi-cell cooperation is an effective means to improve service quality to cellular users. Existing work primarily focuses on interference cancellation using all the degrees of fre…
Downlink Analysis for a Heterogeneous Cellular Network
Prasanna Madhusudhanan, Juan G. Restrepo, Youjian +2
In this paper, a comprehensive study of the the downlink performance in a heterogeneous cellular network (or hetnet) is conducted. A general hetnet model is considered consisting o…
Rotor-phonon coupling in perovskite CH3NH3PbI3: the origin of exceptional transport properties
Bing Li, Yukinobu Kawakita, Yucheng Liu +7
Atomic dynamics takes a fundamental part in numbers of physical properties of solids like high-Tc superconductivity, semiconducting transports, and thermoelectricity. Perovskite CH…
Stress-Induced Ferroelectricity in Hafnium Oxide Core-Shell Nanoparticles
Anna N. Morozovska, Eugene A. Eliseev, Richard +3
In contrast to hafnia (HfO2) thin films, where the appearance of switchable ferroelectric polarization can be induced by strain or defect engineering, reliable methods for controll…
Utilizing Players' Playtime Records for Churn Prediction: Mining Playtime Regularity
Wanshan Yang, Ting Huang, Junlin Zeng +4
In the free online game industry, churn prediction is an important research topic. Reducing the churn rate of a game significantly helps with the success of the game. Churn predict…
MIMO B-MAC Interference Network Optimization under Rate Constraints by Polite Water-filling and Duality
An Liu, Youjian, Liu +2
We take two new approaches to design efficient algorithms for transmitter optimization under rate constraints, to guarantee the Quality of Service in general MIMO interference netw…
How Many Users should be Turned On in a Multi-Antenna Broadcast Channel?
Wei Dai, Youjian, Liu +1
This paper considers broadcast channels with L antennas at the base station and m single-antenna users, where each user has perfect channel knowledge and the base station obtains c…
An Overview of Mixing Search Techniques: Current Status and Future Prospects
Tiehui, Liu
The search for mixing may carry a large discovery potential for new physics. This paper discusses the techniques, current experimental status, and future prospects f…
Stochastic Ordering based Carrier-to-Interference Ratio Analysis for the Shotgun Cellular Systems
Prasanna Madhusudhanan, Juan G. Restrepo, Youjian +3
A simple analytical tool based on stochastic ordering is developed to compare the distributions of carrier-to-interference ratio at the mobile station of two cellular systems where…
Judging from Support-set: A New Way to Utilize Few-Shot Segmentation for Segmentation Refinement Process
Seonghyeon Moon, Qingze, Liu +2
Segmentation refinement aims to enhance the initial coarse masks generated by segmentation algorithms. The refined masks are expected to capture more details and better contours of…
Downlink Coverage Analysis in a Heterogeneous Cellular Network
Prasanna Madhusudhanan, Juan G. Restrepo, Youjian +2
In this paper, we consider the downlink signal-to-interference-plus-noise ratio (SINR) analysis in a heterogeneous cellular network with K tiers. Each tier is characterized by a ba…
Enhanced Robot Speech Recognition Using Biomimetic Binaural Sound Source Localization
Jorge, Davila-Chacon, Jindong +3
Inspired by the behavior of humans talking in noisy environments, we propose an embodied embedded cognition approach to improve automatic speech recognition (ASR) systems for robot…
Understanding GEMM Performance and Energy on NVIDIA Ada Lovelace: A Machine Learning-Based Analytical Approach
Xiaoteng, Liu, Pavly Halim
Analytical framework for predicting General Matrix Multiplication (GEMM) performance on modern GPUs, focusing on runtime, power consumption, and energy efficiency. Our study employ…
Dual Link Algorithm for the Weighted Sum Rate Maximization in MIMO Interference Channels
Xing Li, Seungil You, Lijun Chen +3
MIMO interference network optimization is important for increasingly crowded wireless communication networks. We provide a new algorithm, named Dual Link algorithm, for the classic…
Gemini 2.5: Pushing the Frontier with Advanced Reasoning, Multimodality, Long Context, and Next Generation Agentic Capabilities
Gheorghe Comanici, Eric Bieber, Mike Schaekermann +3431
In this report, we introduce the Gemini 2.X model family: Gemini 2.5 Pro and Gemini 2.5 Flash, as well as our earlier Gemini 2.0 Flash and Flash-Lite models. Gemini 2.5 Pro is our…
A Smoothed Analysis of Online Lasso for the Sparse Linear Contextual Bandit Problem
Zhiyuan Liu, Huazheng Wang, Bo Waggoner +3
We investigate the sparse linear contextual bandit problem where the parameter is sparse. To relieve the sampling inefficiency, we utilize the "perturbed adversary" where the…
Maximum A Posteriori Probability (MAP) Joint Fine Frequency Offset and Channel Estimation for MIMO Systems with Channels of Arbitrary Correlation
Mingda Zhou, Zhe Feng, Xinming Huang +2
Channel and frequency offset estimation is a classic topic with a large body of prior work using mainly maximum likelihood (ML) approach together with Cramér-Rao Lower bounds (CRL…
Anisotropic magnetic properties and tunable conductivity in two-dimensional layered NaCrX2 (X=Te,Se,S) single crystals
Jiale Huang, Bingxian Shi, Feihao Pan +7
Monolayer NaCrX2 (X=Te,Se,S) were theoretically proposed to be two-dimensional intrinsic ferromagnetic semiconductors while their physical properties have not been thoroughly inves…
Exploring Protein Language Model Architecture-Induced Biases for Antibody Comprehension
Mengren, Liu, Yixiang Zhang +2
Recent advances in protein language models (PLMs) have demonstrated remarkable capabilities in understanding protein sequences. However, the extent to which different model archite…
On decoherence in quantum algorithm via dynamic models for quantum measurement
C. P Sun, H. Zhan, X. F +1
The possible effect of environment on the efficiency of a quantum algorithm is considered explicitely. It is illustrated through the example of Shor's prime factorization algorithm…
Average AoI Minimization for Energy Harvesting Relay-aided Status Update Network Using Deep Reinforcement Learning
Sin-Yu Huang, Kuang-Hao, Liu
A dual-hop status update system aided by energy harvesting (EH) relays with finite data and energy buffers is studied in this work. To achieve timely status updates, the best relay…
ICE-SEARCH: A Language Model-Driven Feature Selection Approach
Tianze Yang, Tianyi Yang, Fuyuan Lyu +3
This study unveils the In-Context Evolutionary Search (ICE-SEARCH) method, which is among the first works that melds large language models (LLMs) with evolutionary algorithms for f…
Magnetic Fields and Massive Star Formation
Qizhou Zhang, Keping Qiu, Josep M. Girart +17
Massive stars ( \msun) typically form in parsec-scale molecular clumps that collapse and fragment, leading to the birth of a cluster of stellar objects. We investigate the r…
vLLM Semantic Router: Signal Driven Decision Routing for Mixture-of-Modality Models
Xunzhuo Liu, Huamin Chen, Samzong Lu +30
As large language models (LLMs) diversify across modalities, capabilities, and cost profiles, the problem of intelligent request routing: selecting the right model for each query a…
Development of an ultra-sensitive 210-micron array of KIDs for far-IR astronomy
Elijah Kane, Chris Albert, Nicholas Cothard +13
The Probe far-Infrared Mission for Astrophysics (PRIMA) is a proposed space observatory which will use arrays of thousands of kinetic inductance detectors (KIDs) to perform low- an…
TrajDiffuse: A Conditional Diffusion Model for Environment-Aware Trajectory Prediction
Qingze, Liu, Danrui Li +4
Accurate prediction of human or vehicle trajectories with good diversity that captures their stochastic nature is an essential task for many applications. However, many trajectory…
How Many Users should be Turned On in a Multi-Antenna Broadcast Channel?
Wei Dai, Youjian, Liu +2
This paper considers broadcast channels with L antennas at the base station and m single-antenna users, where L and m are typically of the same order. We assume that only partial c…
The Cosmic Ultraviolet Baryon Survey (CUBS) VIII: Group Environment of the Most Luminous Quasars at
Jennifer I. Li, Sean D. Johnson, Erin Boettcher +12
We investigate the group-scale environment of 15 luminous quasars (luminosity erg s) from the Cosmic Ultraviolet Baryon Survey (CUBS) at redshift $z\a…
Multiply robust estimators in longitudinal studies with missing data under control-based imputation
Siyi Liu, Shu Yang, Yilong Zhang +2
Longitudinal studies are often subject to missing data. The ICH E9(R1) addendum addresses the importance of defining a treatment effect estimand with the consideration of intercurr…
Behavior of quantum coherence in the ultrastrong and deep strong coupling regimes of light-matter system
Yu-qiang Liu, Qiulin Long, Yi-jia Yang +12
The ultrastrong and deep strong coupling regimes exhibit a variety of intriguing physical phenomena. In this work, we utilize the Hopfield model of a two-mode bosonic system, with…
LERA: Reinstating Judgment as a Structural Precondition for Execution in Automated Systems
Jing, Liu
As automated systems increasingly transition from decision support to direct execution, the problem of accountability shifts from decision quality to execution legitimacy. While op…
gpt-oss-120b & gpt-oss-20b Model Card
OpenAI, :, Sandhini Agarwal +124
We present gpt-oss-120b and gpt-oss-20b, two open-weight reasoning models that push the frontier of accuracy and inference cost. The models use an efficient mixture-of-expert trans…
Low Overhead Beam Alignment for Mobile Millimeter Channel Based on Continuous-Time Prediction
Huang-Chou Lin, Kuang-Hao, Liu
In millimeter-wave (mmWave) communications, directional transmission based on beamforming is important to compensate for high pathloss. To maintain the desired direction transmissi…
The Mixing Search --- Current Status and Future Prospects
Tiehui, Liu
The search for mixing carries a large discovery potential for new physics since the mixing rate is expected to be very small in the Standard Model. Th…