Chao-Hsiang Li, Alexander I-Chi Lai, and Ruey-Beei Wu, “Accuracy Enhancement of Wi-Fi Positioning by Ranging in Dense UWB Networks,” Computer Communications, Elsevier, Volume 213, 179-187, Jan. 2024
Hao-Wei Chan, Pei-Yuan Wu, Alexander I-Chi Lai, and Ruey-Beei Wu, “Fusion-Based Smartphone Positioning using Unsupervised Calibration of Crowdsourced Wi-Fi FTM,” IEEE Access, vol. 10, 96260-96272, Aug. 2022
Chung-Yuen Chen, Alexander I-Chi Lai, Pei-Yuan Wu, and Ruey-Beei Wu, “Optimization and Evaluation of Multidetector Deep Neural Network for High-Accuracy Wi-Fi Fingerprint Positioning,” IEEE Internet of Things Journal, vol. 9, no. 16, 15204-15214, Aug. 2022
Alexander I-Chi Lai and Ruey-Beei Wu, “An Asynchronous Heterogeneous Fusion Framework for RF Localization Ensembles,” URSI Radio Science Letters (RSL), vol. 3, 2022
Poh Yuen Chan, Alexander I-Chi Lai and Ruey-Beei Wu, “Physical Tampering Detection Using Single COTS Wi-Fi Endpoint,” Sensors, 21(16), 5665-5679, Aug. 2021
Alexander I-Chi Lai, Chung-Yuen Chen, and Ruey-Beei Wu,, “A Mutual-Information based Infrastructure-less Radio-Frequency Positioning System via Deep Learning,” URSI Radio Science Letters (RSL),, vol. 2, 2020
Conference & proceeding papers:
Tzu-Yi Yang and Alexander I-Chi Lai, “WIFIND: Enhancing Wi-Fi Fingerprint Indoor Localization With a Spatially Conditioned Diffusion Model-Based Data Augmentation,” IEEE WCNC (Wireless Communication and Networking) 2025, Milan, Italy, Mar. 2025
Alexander I-Chi Lai and Hung-Chih Yang, “Deep Learning Based Behavior Anomaly Detection within the Context of Electronic Commerce,” 2023 IEEE Intelligence and Security Informatics (ISI-2023) (*To appear), 1-6, Charlotte, NC, USA, Oct. 2023
Alexander I-Chi Lai and Ruey-Beei Wu, “ Real-Time Deep Fusion Framework for RF Positioning Ensembles,” URSI General Assembly and Scientific Symposium (GASS) 2021, Rome, Italy, Aug. 2021
Hao-Wei Chan, Alexander I-Chi Lai, and Ruey-Beei Wu, “Transfer Learning of Wi-Fi FTM Responder Positioning with NLOS Identification,” IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT), 23-26, San Diego, CA, USA, Jan. 2021
Chung-Yuen Chen, Alexander I-Chi Lai, and Ruey-Beei Wu, “Multi-Detector Deep Neural Network for High Accuracy Wi-Fi Fingerprint Positioning,” EEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT), 37-39, San Diego, CA, USA, Jan. 2021
Alexander I-Chi Lai and Ruey-Beei Wu, “Infrastructure-less Intelligent RF Spatial Positioning,” URSI General Assembly and Scientific Symposium (GASS) 2020, Rome, Italy, Aug. 2020
Yu-Chih Chen, Alexander I-Chi Lai, and Ruey-Beei Wu, “UWB-Assisted High-Precision Positioning in a UTM Prototype,” IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT), 42-45, San Antonio, TX, USA, Jan. 2020
1. Hao-Wei Chan, Alexander I-Chi Lai, & Ruey-Beei Wu, “Ranging-type positioning system and ranging-type positioning method based on crowdsourced calibration,” US Patent 12,235,374, Feb. 2025
Chao-Hsiang Li, Alexander I-Chi Lai, & Ruey-Beei Wu, “Ultra-wideband assisted precise positioning system and ultra-wideband assisted precise positioning method,” US 11,838,828, Dec. 2023
Chung-Yuan Chen, Alexander I-Chi Lai, & Ruey-Beei Wu, “Positioning system and positioning method based on WI-FI fingerprints,” US Patent 11,762,396, Sept. 2023
Chung-Yuan Chen, Alexander I-Chi Lai, & Ruey-Beei Wu, “System for establishing positioning map data and method for the same,” US Patent 11,438,886, Sept. 2022
陳重源, 賴怡吉, 吳瑞北, “基於Wi-Fi指紋的定位系統及方法,” TW Patent I774056, Aug. 2022
賴怡吉, 林思綺, 吳瑞北, “整合機器學習定位模型的定位系統及方法,” TW Patent I772884, Aug. 2022
詹皓崴, 賴怡吉, 吳瑞北, “基於眾包校正的測距型定位系統及方法,” TW Patent I764842, May 2022
尤焙麟, 賴怡吉, “虛擬檔案傳輸系統及其虛擬檔案傳輸之方法,” TW Patent I475490B, Mar. 2015
Chih-Hsiang Lin, Alexander I-Chi Lai, Chao-Kuang Yang, Ya-Wen Lin, “Instant message audio connection management system and method,” US Patent 8,116,686, Feb. 2012
Alexander I-Chi Lai, Pei-Ling Yu, “Secure login method for establishing a wireless local area network connection, and wireless local area network system,” US Patent 7,689,211, Mar. 2010