HLJ

Portfolio | Data/AI/ML

Hoyeon Luke Jang

Own what you build

View Timeline

Latest Project

Waypoint

An adaptive self-learning curriculum platform that turns a learner's objective, constraints, and preferences into a resource-backed capability graph, a deterministic schedule of measurable tasks, and a versioned plan that can safely adapt to real progress and feedback.

aieducation-technologyadaptive-learning
Read Case

Total Work

7

Latest

Present

Tags

machine-learningai-agentsazurellmllmopsmodel-evaluationnextjsnlppythonpytorchscikit-learntypescriptadaptive-learningadfaiai-etlai-for-mathematicsannotation-platformapplied-aiattentionaudioaws-s3azure-databricksazure-machine-learningazure-openaiazure-sqlchromaci-cdclassificationcoherecompositional-reasoningcomputer-visionconcept-generationcurriculum-generationdata-engineeringdata-sciencedatadogdeep-learningdeterministic-schedulingdevopsdockerecommerceeducation-technologyembeddingsfastapifeature-engineeringforecastingfull-stackgptgraph-databaseshuman-datahuman-in-the-loopinternshipjsonknowledge-graphknowledge-representationlean4llamaindexlocal-firstlogistic-regressionmarkdownmathlibmultimodal-aineo4jneural-networksneuro-symbolic-aiobsidianontologypersonal-knowledge-managementpineconeplaywrightpostgresprivacyprompt-engineeringprovenanceragrag-evaluationrandom-forestreactrecommendation-systemsresearchrubysqlsqlalchemysupabasetheorem-provingtokenizationtransformertype-theoryvector-databasesxgboostyamlyoutube-shortsmachine-learningai-agentsazurellmllmopsmodel-evaluationnextjsnlppythonpytorchscikit-learntypescriptadaptive-learningadfaiai-etlai-for-mathematicsannotation-platformapplied-aiattentionaudioaws-s3azure-databricksazure-machine-learningazure-openaiazure-sqlchromaci-cdclassificationcoherecompositional-reasoningcomputer-visionconcept-generationcurriculum-generationdata-engineeringdata-sciencedatadogdeep-learningdeterministic-schedulingdevopsdockerecommerceeducation-technologyembeddingsfastapifeature-engineeringforecastingfull-stackgptgraph-databaseshuman-datahuman-in-the-loopinternshipjsonknowledge-graphknowledge-representationlean4llamaindexlocal-firstlogistic-regressionmarkdownmathlibmultimodal-aineo4jneural-networksneuro-symbolic-aiobsidianontologypersonal-knowledge-managementpineconeplaywrightpostgresprivacyprompt-engineeringprovenanceragrag-evaluationrandom-forestreactrecommendation-systemsresearchrubysqlsqlalchemysupabasetheorem-provingtokenizationtransformertype-theoryvector-databasesxgboostyamlyoutube-shorts

Experience + Projects

Timeline

Experience and projects arranged together by date for a single view of applied systems work.

  1. Project

    Waypoint

    Personal Project

    An adaptive self-learning curriculum platform that turns a learner's objective, constraints, and preferences into a resource-backed capability graph, a deterministic schedule of measurable tasks, and a versioned plan that can safely adapt to real progress and feedback.

    • ai
    • education-technology
    • adaptive-learning
    • curriculum-generation
    • nextjs
    • typescript
    • supabase
    • llm
    • deterministic-scheduling
    • playwright
  2. Project

    Nous

    Personal Project

    A local-first personal self-knowledge system that preserves writings, reflections, images, and project artifacts as source evidence, turns them into reviewable Obsidian records and knowledge-graph relationships, and exposes a provenance-aware core for future AI agents, memory interfaces, and personal knowledge applications.

    • personal-knowledge-management
    • knowledge-graph
    • obsidian
    • local-first
    • ai-agents
    • ruby
    • human-in-the-loop
    • provenance
    • privacy
    • markdown
    • yaml
    • json
  3. Experience

    Data Engineer Intern

    Dev-Sec-Ops @ TD Bank

    Extended internship focused on Azure automation, platform operations, and process improvement.

    • internship
    • data-engineering
    • azure
    • adf
    • sql
    • devops
  4. Project

    CollectLite

    Personal Project

    A full-stack human-data collection and model-evaluation platform focused on RAG relevance labeling, dataset ingestion, model-in-the-loop suggestions, multi-annotator consensus, review resolution, quality metrics, and JSONL/CSV exports.

    • full-stack
    • human-data
    • annotation-platform
    • model-evaluation
    • llmops
    • rag-evaluation
    • nextjs
    • typescript
    • react
    • fastapi
    • python
    • sqlalchemy
    • postgres
    • cohere
    • docker
  5. Project

    Deep Concept Model (DCM)

    Independent Research Proposal

    A proposed neuro-symbolic AI research programme for building a formal concept algebra over mathematics, using dependent type theory, Lean 4, Mathlib, ontology graphs, hyperbolic embeddings, and verified concept generation to explore reasoning beyond natural language.

    • research
    • neuro-symbolic-ai
    • knowledge-representation
    • ontology
    • type-theory
    • lean4
    • mathlib
    • theorem-proving
    • concept-generation
    • ai-for-mathematics
    • compositional-reasoning
  6. Experience

    Data Engineer Intern

    AI Platform @ TD Bank

    Maintained and enhanced production AI ETL, RAG ingestion, Azure infrastructure, model deployment, and observability systems for enterprise document intelligence workflows.

    • azure
    • ai-etl
    • azure-sql
    • azure-databricks
    • azure-machine-learning
    • azure-openai
    • datadog
    • ci-cd
    • llmops
  7. Project

    Predicting Online Shoppers’ Purchasing Intention

    Western University

    An end-to-end supervised machine learning pipeline for predicting purchase intent across 12.3K e-commerce sessions using behavioral feature engineering, leakage-safe preprocessing, class-imbalance-aware evaluation, and tuned linear, tree-based, and ensemble classifiers.

    • machine-learning
    • data-science
    • classification
    • ecommerce
    • feature-engineering
    • scikit-learn
    • xgboost
    • random-forest
    • logistic-regression
    • model-evaluation
  8. Project

    Video Virality Predictor

    Western AI

    A multimodal YouTube Shorts forecasting platform that collects short-form video data, generates video/audio/text embeddings, fuses modalities, trains leakage-resistant predictors, and serves 7-day and 30-day view forecasts through a conference-demoed web application.

    • machine-learning
    • multimodal-ai
    • forecasting
    • youtube-shorts
    • aws-s3
    • pytorch
    • scikit-learn
    • nlp
    • computer-vision
    • audio
  9. Project

    Building a GPT-Style LLM from Scratch

    Personal Project

    A ground-up PyTorch implementation journey for understanding GPT-style language models, covering tensor operations, autograd, neural network training loops, tokenization, byte-pair encoding, embedding construction, positional embeddings, causal self-attention, and multi-head attention.

    • machine-learning
    • deep-learning
    • llm
    • transformer
    • gpt
    • pytorch
    • tokenization
    • embeddings
    • attention
    • neural-networks
    • nlp
  10. Experience

    Applied AI Developer Intern

    Growth R&D @ Archisketch

    Developed and deployed production-ready AI agents, recommendation systems, retrieval pipelines, and data infrastructure for Archisketch’s applied AI product features.

    • python
    • applied-ai
    • ai-agents
    • rag
    • vector-databases
    • graph-databases
    • recommendation-systems
    • prompt-engineering
    • llamaindex
    • neo4j
    • chroma
    • pinecone

Complete Index

Projects