AI systems · evaluation · agents

Chang
Chia Wei

Undergraduate at National Chengchi University building language-model systems and exploring model behavior, evaluation, memory, and agentic architectures.

Systems built around persistent state, memory, and model behavior.

Anjo

A stateful conversational AI system designed around continuity across sessions. Anjo combines semantic and emotional memory, persistent personality state, appraisal, and post-session reflection instead of treating each conversation as an isolated chat.

Python · FastAPI ChromaDB React Native · Expo Claude

Dual-memory retrieval

Stores semantic and emotional representations separately, then re-ranks retrieved memories using emotional context.

Persistent internal state

Models personality and mood using OCEAN and PAD-inspired state that persists and evolves across user sessions.

Reflection loop

Post-session model analysis updates relationship state, emotional residue, trust, and personality deltas with bounded changes.

Building and evaluating AI systems from different angles.

Founder / Builder

Anjo

Designed and implemented a persistent-memory conversational system spanning backend architecture, retrieval, model orchestration, product behavior, and mobile delivery.

AI Evaluation

DataAnnotation · Outlier

Worked on model-response evaluation and annotation tasks, including generalist and coding-oriented evaluation workflows.

Education

National Chengchi University

Undergraduate in Communication, Taiwan. Independently building technical depth in machine learning, deep learning, language models, and AI systems.

Questions I want to understand more deeply.

Model evaluation LLM agents Long-term memory Model behavior Personalization AI safety Human–AI interaction