Selected work

Representative Papers

Lifecycle-Based Design and Evaluation of Real-Time Backup Triggers for Ransomware Damage Mitigation

Oct 06, 2026

This study addresses the challenge of determining optimal trigger points for real-time backups during ransomware attacks, where balancing recoverability against storage overhead remains difficult. Adopting a file lifecycle perspective, this work systematically quantifies, for the first time, the protective efficacy and associated costs of four file operations—open, read, write, and rename—as backup triggers. A ROFBS-style prototype was implemented atop the XFS file system and evaluated through simulated attacks using five representative ransomware samples, including Conti. The experimental results elucidate the trade-offs between security and performance across different triggering strategies. Ultimately, these findings provide critical design guidelines for constructing efficient, ransomware-resilient real-time backup systems.

0 citationsRead paper

Geometry-Aware Multi-UAV Full-Duplex Communication: System Design and Experiment

Sep 27, 2026IEEE Transactions on Vehicular Technology

This study addresses the excessive energy consumption of self-interference cancellation (SIC) in lightweight wireless links for unmanned aerial vehicles (UAVs) by proposing a multi-UAV in-band full-duplex (MU-IBFD) architecture that eliminates the need for dedicated SIC circuitry. The proposed approach leverages high-gain directional antennas and uplink–downlink channel separation techniques to transform self-interference into controllable co-channel interference. Furthermore, a three-dimensional geometry-aware interference model is constructed, and the theoretical reliable operating region is derived. Validated through prototype development and real-world flight tests, the proposed model demonstrates high accuracy and effectiveness. Experimental results show that the downlink capacity significantly surpasses that of conventional time-division duplexing (TDD) schemes while approaching the ideal full-duplex limit, successfully enabling real-time 4K video transmission.

0 citationsRead paper

Impact of File-Open Hook Points on Backup Ratio in ROFBS on XFS

Mar 17, 2026

This study addresses the limitations of existing real-time backup mechanisms against ransomware, which often fail due to suboptimal placement of file-open hooks, allowing attackers to encrypt files during detection delays. Without altering the underlying ROFBS framework, the authors present the first systematic quantitative evaluation of five kernel hook points—may_open, inode_permission, do_dentry_open, security_file_open, and xfs_file_open—along the Linux file-open path under the XFS filesystem, assessing their impact on backup ratio and encryption scope. Empirical experiments on AlmaLinux employ three ransomware families: AvosLocker, Conti, and IceFire. Results demonstrate that xfs_file_open achieves the highest backup ratios (100.0% for Conti and 63.2% for IceFire) while consistently minimizing the total number of encrypted files; security_file_open performs best against AvosLocker (82.5%), underscoring the critical defensive value of filesystem-layer hooks.

0 citationsRead paper

Impact of arbitrage between leveraged ETF and futures on market liquidity during market crash

Mar 06, 2026

This study investigates the mechanism through which arbitrage between leveraged ETFs and futures influences cross-market liquidity during market crashes. Using an agent-based artificial market simulation, the authors construct an interactive trading environment that, for the first time, systematically reveals a dynamic two-way liquidity transmission mechanism driven by arbitrage under extreme market conditions: when a liquidity shock triggered by erroneous orders disrupts one market, the other market mitigates the impact by supplying depth and price tightness, with trading volumes exhibiting significant co-movement. The findings highlight the critical role of arbitrage in stabilizing cross-market liquidity and offer a novel perspective on market resilience during extreme events.

0 citationsRead paper

Is an investor stolen their profits by mimic investors? Investigated by an agent-based model

Mar 03, 2026

This study investigates whether strategy homogenization erodes returns for original investors, addressing ongoing debates about the market impact of imitation behavior. By constructing an extended agent-based artificial financial market model that incorporates adjustable proportions of fundamentalist and technical traders, the paper provides the first empirical examination of how strategy imitation differentially affects the returns of distinct investor types. The findings reveal that while an increase in fundamentalist imitators enhances price stability, it simultaneously reduces their own returns; conversely, a growing population of technical imitators amplifies price volatility yet boosts their profitability. These results uncover an asymmetric return mechanism between the two strategies under group expansion, offering novel evidence for understanding the risks associated with market homogenization.

0 citationsRead paper

Recent publications

Latest Papers

Lifecycle-Based Design and Evaluation of Real-Time Backup Triggers for Ransomware Damage Mitigation

Oct 06, 2026

This study addresses the challenge of determining optimal trigger points for real-time backups during ransomware attacks, where balancing recoverability against storage overhead remains difficult. Adopting a file lifecycle perspective, this work systematically quantifies, for the first time, the protective efficacy and associated costs of four file operations—open, read, write, and rename—as backup triggers. A ROFBS-style prototype was implemented atop the XFS file system and evaluated through simulated attacks using five representative ransomware samples, including Conti. The experimental results elucidate the trade-offs between security and performance across different triggering strategies. Ultimately, these findings provide critical design guidelines for constructing efficient, ransomware-resilient real-time backup systems.

0 citationsRead paper

Geometry-Aware Multi-UAV Full-Duplex Communication: System Design and Experiment

Sep 27, 2026IEEE Transactions on Vehicular Technology

This study addresses the excessive energy consumption of self-interference cancellation (SIC) in lightweight wireless links for unmanned aerial vehicles (UAVs) by proposing a multi-UAV in-band full-duplex (MU-IBFD) architecture that eliminates the need for dedicated SIC circuitry. The proposed approach leverages high-gain directional antennas and uplink–downlink channel separation techniques to transform self-interference into controllable co-channel interference. Furthermore, a three-dimensional geometry-aware interference model is constructed, and the theoretical reliable operating region is derived. Validated through prototype development and real-world flight tests, the proposed model demonstrates high accuracy and effectiveness. Experimental results show that the downlink capacity significantly surpasses that of conventional time-division duplexing (TDD) schemes while approaching the ideal full-duplex limit, successfully enabling real-time 4K video transmission.

0 citationsRead paper

Impact of File-Open Hook Points on Backup Ratio in ROFBS on XFS

Mar 17, 2026

This study addresses the limitations of existing real-time backup mechanisms against ransomware, which often fail due to suboptimal placement of file-open hooks, allowing attackers to encrypt files during detection delays. Without altering the underlying ROFBS framework, the authors present the first systematic quantitative evaluation of five kernel hook points—may_open, inode_permission, do_dentry_open, security_file_open, and xfs_file_open—along the Linux file-open path under the XFS filesystem, assessing their impact on backup ratio and encryption scope. Empirical experiments on AlmaLinux employ three ransomware families: AvosLocker, Conti, and IceFire. Results demonstrate that xfs_file_open achieves the highest backup ratios (100.0% for Conti and 63.2% for IceFire) while consistently minimizing the total number of encrypted files; security_file_open performs best against AvosLocker (82.5%), underscoring the critical defensive value of filesystem-layer hooks.

0 citationsRead paper

Impact of arbitrage between leveraged ETF and futures on market liquidity during market crash

Mar 06, 2026

This study investigates the mechanism through which arbitrage between leveraged ETFs and futures influences cross-market liquidity during market crashes. Using an agent-based artificial market simulation, the authors construct an interactive trading environment that, for the first time, systematically reveals a dynamic two-way liquidity transmission mechanism driven by arbitrage under extreme market conditions: when a liquidity shock triggered by erroneous orders disrupts one market, the other market mitigates the impact by supplying depth and price tightness, with trading volumes exhibiting significant co-movement. The findings highlight the critical role of arbitrage in stabilizing cross-market liquidity and offer a novel perspective on market resilience during extreme events.

0 citationsRead paper

Is an investor stolen their profits by mimic investors? Investigated by an agent-based model

Mar 03, 2026

This study investigates whether strategy homogenization erodes returns for original investors, addressing ongoing debates about the market impact of imitation behavior. By constructing an extended agent-based artificial financial market model that incorporates adjustable proportions of fundamentalist and technical traders, the paper provides the first empirical examination of how strategy imitation differentially affects the returns of distinct investor types. The findings reveal that while an increase in fundamentalist imitators enhances price stability, it simultaneously reduces their own returns; conversely, a growing population of technical imitators amplifies price volatility yet boosts their profitability. These results uncover an asymmetric return mechanism between the two strategies under group expansion, offering novel evidence for understanding the risks associated with market homogenization.

0 citationsRead paper