Neural Sparse ANN in OpenSearch Integrated the SEISMIC algorithm into OpenSearch for sub-3ms sparse vector retrieval at billion-document scale, shipped in OpenSearch 3.3.0. Multimodal Quality Prediction for Die Castings Built a multimodal ML system at Xiaomi to predict mechanical properties of automotive components, reducing MAE by 53% and deployed to production. Federated Learning with Adaptive Device Selection Investigated and benchmarked federated learning algorithms for heterogeneous edge environments at Cornell University, supervised by Prof. Qing Zhao. Automatic Archived Film Restoration Deep learning pipeline for automated detection and restoration of degraded archived films using Deep Image Prior and novel algorithms. Bachelor's FYP at HKPolyU. RFID Phonograph Music Player Embedded music player using Raspberry Pi with RFID-triggered playback, synchronized lyrics, and FFT-based LED rhythm visualization.