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Yangjunjie-Lin/README.md

Yangjunjie Lin

Computer Science undergraduate at the University of Manchester, working on online recurrent learning, knowledge representation and reliable AI systems.

Email · LinkedIn

Research background

  • CUHK-Shenzhen: summer research from June to August 2026, followed by contracted project research collaboration from September 2026.
  • Manchester final-year project: online recurrent learning and temporal credit assignment, supervised by Mingfei Sun. My public RTRL/SnAp study contains the earlier educational implementations and gradient checks.

I am interested in how AI systems represent knowledge, learn from changing information and respond to contradictory evidence. My projects combine experimental analysis with software that makes data, model behavior and results easier to inspect.

Selected projects

Project Work represented
KG-MNP-Demo Ontology engineering toolchain with RDF/OWL compilation, SHACL validation, human review and traceable data handoffs.
Scanly Modular barcode-scanning SDK with browser, Node.js and React APIs, WebAssembly decoding, temporal tracking and native wrappers.
Hunton Local Brain QLoRA fine-tuning and edge-deployment workflow for Qwen2.5-3B, with structured JSON actions, GGUF quantization and validation tools.
RTRL/SnAp study Educational JAX implementations of BPTT, exact RTRL and SnAp-1 on the Copy Task, with numerical gradient checks.
ReCoAlign Archived vision-language evaluation research with frozen protocols, controlled experiments and documented negative results.
NoteVault AI-assisted Markdown notebook with authenticated storage, branching conversations and user-reviewed note capture.

More systems work: PrismTranscode, a local media-conversion workbench with a Go service, persistent job queues and in-browser FFmpeg WebAssembly processing.

Tools I use

  • Research and data: Python, JAX, PyTorch, NumPy, RDF/OWL, SHACL and SPARQL.
  • Applications and systems: TypeScript, JavaScript, React, FastAPI, Go, PostgreSQL, SQLite and Firebase.
  • Verification: pytest, Playwright, GitHub Actions, numerical checks and reproducible experiment records.

University service

Academic Representative for BSc (Hons) Computer Science in 2024/25 and 2025/26, and volunteer MathSoc Student Development Officer in 2025/26, at the University of Manchester.

Pinned Loading

  1. KG-MNP-Demo KG-MNP-Demo Public

    Ontology engineering toolchain with RDF/OWL compilation, SHACL validation, human review, and traceable handoffs for knowledge-graph construction.

    Python

  2. Scanly Scanly Public

    Privacy-first, local-only barcode scanning SDK for Web, Node.js, React, iOS and Android with multi-format decoding, realtime tracking, batch scanning, and native/WASM engines.

    TypeScript 142 27

  3. rtrl-snap-reproduction rtrl-snap-reproduction Public

    Lightweight reproduction of BPTT, exact RTRL, and SnAp-1 on the Copy Task with gradient-consistency tests.

    Python

  4. recoalign recoalign Public archive

    Frozen negative-evidence and reproducibility resource documenting the closed ReCoAlign VLM research line. Not a validated method release.

    Python

  5. notevault notevault Public

    Production-oriented Markdown notebook with Firebase Auth, FastAPI, Firestore, typed OpenAPI contracts, and cross-browser E2E tests.

    TypeScript 1

  6. hunton-finetune hunton-finetune Public

    A domain-focused LLM fine-tuning project covering dataset preparation, training workflow, evaluation, and reproducible experiment structure.

    Python 1