Research & Patents

Projects

Independent work
Publications & Patents
01

Academic Publication

Learning-based Software
Defect Prediction

A systematic study evaluating machine learning approaches for predicting software defects in production codebases. Explored feature extraction from abstract syntax trees, code metrics, and change history. Evaluated classification models across multiple open-source Java projects.

Han Cao — Journal of Physics, Conference Series · CCEAI 2020

Venue
CCEAI 2020
Published in
Journal of Physics
Year
2020
02

Utility Patent — Granted

TCM Self-Service Clinic
Management System

Invented a self-service inquiry management system for Traditional Chinese Medicine outpatient clinics, streamlining patient intake and pre-consultation workflows. Enables patients to complete structured symptom entry and consultation routing without front-desk intervention.

Grant No. ZL 2017 2 1856637.6 — Patent Authority of China

Status
Granted
Patent No.
ZL 2017 2 1856637.6
Year
2017
Internal Tooling
03
LLM Evaluation Framework

Internal benchmark suite for evaluating 12 large language models across accuracy, latency, and cost for production model selection at Amazon Lex.

Amazon Lex · 2024

04
Region Build Orchestration

New orchestration model replacing the manual Lambda region expansion process. Parallelised IA-gating tasks and integrated with automated region config systems.

AWS Lambda · 2023

05
Load Testing Suite

Designed and executed load testing simulating ~7× normal production traffic across 50,000 throttle cache keys to validate Lambda control plane latency impact.

AWS Lambda · 2023

06
MapReduce Analysis Pipeline

Custom MapReduce pipeline that shards Amazon Lex bots by intent for parallel processing and result aggregation, achieving sub-60-second analysis for bots with 1,000+ intents.

Amazon Lex · 2024