Liyu Xie
YOU?
Author Swipe
View article: Auto-Rubric: Learning to Extract Generalizable Criteria for Reward Modeling
Auto-Rubric: Learning to Extract Generalizable Criteria for Reward Modeling Open
Reward models are essential for aligning Large Language Models (LLMs) with human values, yet their development is hampered by costly preference datasets and poor interpretability. While recent rubric-based approaches offer transparency, th…
View article: Taming the Judge: Deconflicting AI Feedback for Stable Reinforcement Learning
Taming the Judge: Deconflicting AI Feedback for Stable Reinforcement Learning Open
Aligning language models using LLM judge feedback offers a scalable alternative to human annotation, yet is plagued by judgment inconsistencies that destabilize reinforcement learning. While prior work has focused on judge accuracy, the cr…
View article: A novel single-input single-output system described by transformation function for damage quantification of soft story
A novel single-input single-output system described by transformation function for damage quantification of soft story Open
View article: Design and Evaluation of Hybrid Drivetrain Damper Considering the Influence of Engine Misfire on Torsional Shock
Design and Evaluation of Hybrid Drivetrain Damper Considering the Influence of Engine Misfire on Torsional Shock Open
Engine misfire is an accidental failure mode in internal combustion vehicles that can lead to the malfunction of power transmission system components. However, previous studies on engine misfire have generally focused on the engine rather …
View article: Passive Inclination Sensor Based on a Patch Antenna with a Reconfigurable Water Load
Passive Inclination Sensor Based on a Patch Antenna with a Reconfigurable Water Load Open
In order to ensure the safety and preserve the value of historical buildings, inclination is an essential parameter during the continuous structural health monitoring process. However, the wire and price of a traditional sensor limit appli…
View article: Seismic Performance Analysis and Optimization of a Re-Centring and Self-Balancing Inerter Driven by a Rhombic Linkage
Seismic Performance Analysis and Optimization of a Re-Centring and Self-Balancing Inerter Driven by a Rhombic Linkage Open
View article: System Identification of a Structure Equipped with a Cable‐Bracing Inerter System Using Adaptive Extended Kalman Filter
System Identification of a Structure Equipped with a Cable‐Bracing Inerter System Using Adaptive Extended Kalman Filter Open
An innovative cable‐bracing inerter system (CBIS) has been proposed and shown to be effective in mitigating the structural response under dynamic excitation. The CBIS comprises an inerter element, an eddy current damping element, and a pai…
View article: Input Energy Reduction‐Oriented Control and Analytical Design of Inerter‐Enabled Isolators for Large‐Span Structures
Input Energy Reduction‐Oriented Control and Analytical Design of Inerter‐Enabled Isolators for Large‐Span Structures Open
Seismic isolation technologies for large‐span structures have rapidly developed alongside the popularization of the seismic resilience concept. To produce a high‐efficiency isolation technology with lower energy dissipation demands, this p…
View article: Long-Term Seismic Monitoring of a Passively-Controlled Steel Building on Performance Assessment under Strong Earthquake
Long-Term Seismic Monitoring of a Passively-Controlled Steel Building on Performance Assessment under Strong Earthquake Open
Analysis of recorded seismic response of an eight-story passively-controlled steel building located in Sendai is reported in this paper. Vibration monitoring system has been instrumented to test the effectiveness of dampers and actual perf…
View article: Response Prediction for Linear and Nonlinear Structures Based on Data-Driven Deep Learning
Response Prediction for Linear and Nonlinear Structures Based on Data-Driven Deep Learning Open
Dynamic analysis of structures is very important for structural design and health monitoring. Conventional numerical or experimental methods often suffer from the great challenges of analyzing the responses of linear and nonlinear structur…
View article: Output-Only Structural Damage Identification Based on Q-Learning Hybrid Evolutionary Algorithm and Response Reconstruction Technique
Output-Only Structural Damage Identification Based on Q-Learning Hybrid Evolutionary Algorithm and Response Reconstruction Technique Open
View article: A Novel 4-Bit U-Shaped Chipless Flexible Substrate RFID Sensor Sensing Characterization Study
A Novel 4-Bit U-Shaped Chipless Flexible Substrate RFID Sensor Sensing Characterization Study Open
Technical method for strain detection using radio frequency identification (RFID) technology is characterized by flexibility, low cost and high intelligence. The traditional planar-based rigid sensing antennas are basically made of rigid s…
View article: A Nonlinear Cable Bracing Inerter System for Vibration Control
A Nonlinear Cable Bracing Inerter System for Vibration Control Open
This study proposes a nonlinear cable model for the cable-bracing inerter system (CBIS). In a CBIS, cables are introduced to connect inerter systems and the structure for translation-to-rotation conversion. This CBIS employs an inerter ele…
View article: Damping Estimation of an Eight-Story Steel Building Equipped with Oil Dampers
Damping Estimation of an Eight-Story Steel Building Equipped with Oil Dampers Open
The damping estimation of an eight-story steel building equipped with oil dampers is examined, carried out by adopting a proposed framework, which consists of an enhanced strain-energy method and an improved direct method for model updatin…
View article: A Capacitively-Fed Inverted-F Antenna for Displacement Detection in Structural Health Monitoring
A Capacitively-Fed Inverted-F Antenna for Displacement Detection in Structural Health Monitoring Open
This paper presents a capacitive displacement sensor based on a capacitively fed inverted-F antenna (CFIFA) for displacement detection. The sensor is composed of a grounded L-shape patch and a rectangular upper patch, forming a capacitor b…
View article: Long-Range Displacement Meters Based on Chipped Circular Patch Antenna
Long-Range Displacement Meters Based on Chipped Circular Patch Antenna Open
This paper presents a passive wireless long-range displacement sensor that is based on the circular patch antenna, and the detecting range of the sensor can be customized. The sensor consists of a chipped circular antenna with two opened r…
View article: Cross-Layer Installed Cable-Bracing Inerter System for MDOF Structure Seismic Response Control
Cross-Layer Installed Cable-Bracing Inerter System for MDOF Structure Seismic Response Control Open
Inerter-based vibration control systems have been developed rapidly in recent years. However, previous studies mainly focus on the development of new devices and parameter optimization strategies, while ignoring the improvements in the uti…
View article: Natural Frequency Characteristics of the Beam with Different Cross Sections Considering the Shear Deformation Induced Rotary Inertia
Natural Frequency Characteristics of the Beam with Different Cross Sections Considering the Shear Deformation Induced Rotary Inertia Open
Based on the classical Timoshenko beam theory, the rotary inertia caused by shear deformation is further considered and then the equation of motion of the Timoshenko beam theory is modified. The dynamic characteristics of this new model, n…
View article: Transverse deformation effect on sensitivity of strain-sensing patch antenna
Transverse deformation effect on sensitivity of strain-sensing patch antenna Open
The strain sensor based on microwave patch antenna is proposed to monitor structural strain in structural health monitoring. When patch antenna experiences deformation, the resonant frequency of patch antenna will shift. With these charact…
View article: Experimental Validation of Optimal Parameter and Uncertainty Estimation for Structural Systems Using a Shuffled Complex Evolution Metropolis Algorithm
Experimental Validation of Optimal Parameter and Uncertainty Estimation for Structural Systems Using a Shuffled Complex Evolution Metropolis Algorithm Open
The uncertainty in parameter estimation arises from structural systems’ input and output measured errors and from structural model errors. An experimental verification of the shuffled complex evolution metropolis algorithm (SCEM-UA) for id…
View article: A Passive Wireless Crack Sensor Based on Patch Antenna with Overlapping Sub-Patch
A Passive Wireless Crack Sensor Based on Patch Antenna with Overlapping Sub-Patch Open
Monolithic patch antennas for deformation measurements are designed to be stressed. To avoid the issues of incomplete strain transfer ratio and insufficient bonding strength of stressed antennas, this paper presents a passive wireless crac…
View article: Structural Monitoring and Safety Assessment during Translocation of Mahavira Hall of Jade Buddha Temple
Structural Monitoring and Safety Assessment during Translocation of Mahavira Hall of Jade Buddha Temple Open
The Mahavira Hall of the Jade Buddha Temple in Shanghai, China is a century-old traditional timber structure with a post-and-lintel construction. To improve the temple’s architectural layout and enhance the lintel structural integrity, the…
View article: Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation
Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation Open
In this paper, cables are proposed to connect the inerter and main frame for translation-to-rotation conversion, i.e., the cable-bracing inerter system (CBIS), with a magnified mass and enhanced damping effect. This novel configuration has…
View article: A Displacement Sensor Based on a Normal Mode Helical Antenna
A Displacement Sensor Based on a Normal Mode Helical Antenna Open
This paper presents a passive displacement sensor based on a normal mode helical antenna. The sensor consists of an external helical antenna and an inserting dielectric rod. First, the perturbation theory is adopted to demonstrate that bot…
View article: Design and Numerical Simulation of Displacement Sensor Based on Helix Antenna
Design and Numerical Simulation of Displacement Sensor Based on Helix Antenna Open
This paper provides a new design of passive wireless displacement sensor. The sensor consists of an external helix antenna and an internal aluminum oxide rod. According to the perturbation theory, there is an approximate linear relationshi…
View article: Time Delay Estimation via Correlation in the Non-Synchronous Sensor Network by the Internet of Things
Time Delay Estimation via Correlation in the Non-Synchronous Sensor Network by the Internet of Things Open
This paper is concerned with the elimination of time delay among data from different channels sampled by the sensor network from the Internet of things (IoT), especially the wireless sensor network (WSN) in Structural Health Monitoring (SH…
View article: Parameter Identification for Structural Health Monitoring with Extended Kalman Filter Considering Integration and Noise Effect
Parameter Identification for Structural Health Monitoring with Extended Kalman Filter Considering Integration and Noise Effect Open
Since physical parameters are much more sensitive than modal parameters, structural parameter identification with an extended Kalman filter (EKF) has received extensive attention in structural health monitoring for civil engineering struct…
View article: Parameter identification for structural health monitoring based on Monte Carlo method and likelihood estimate
Parameter identification for structural health monitoring based on Monte Carlo method and likelihood estimate Open
Structural parameters are the most important factors reflecting structural performance and conditions. As a result, their identification becomes the most essential aspect of the structural assessment and damage identification for the struc…
View article: Bifurcation tracking by Harmonic Balance Method for performance tuning of nonlinear dynamical systems
Bifurcation tracking by Harmonic Balance Method for performance tuning of nonlinear dynamical systems Open
View article: An Adaptive Multi-objective Immune Algorithm for Optimal Design of Truss Structures
An Adaptive Multi-objective Immune Algorithm for Optimal Design of Truss Structures Open
In this paper, an adaptive immune clone selection algorithm for multi-objective optimization (AICSAMO) is proposed. A novel adaptive polynomial mutation operator with dynamic mutation probability is employed in AICSAMO. This adaptive mutat…