- Problem
- Existing Python graph libraries and generic dataframe wrappers often struggle to combine memory efficiency, traversal performance, and lazy query optimization for large graph analytics.
- Key decision
- Designed GraphFrame to own Arrow RecordBatches directly.
- Outcome
- Established the foundation for a graph analytics engine with Arrow columnar memory, CSR-based traversal, and lazy collect execution.
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Representative comparison
- Problem
- ML experiments and deployment work often scatter metadata, records, and artifacts across tools, making reproducible local observability hard to maintain.
- Key decision
- Used a `.contexta/` workspace as the home for separated metadata, records, and artifact storage.
- Outcome
- Implemented a local observability foundation for consistently managing and inspecting ML execution history and artifacts.
- Problem
- Nursing surveillance required diagnosis-related classification, but key clinical signals were fragmented across heterogeneous EMR sources.
- Key decision
- Trained two KM-BERT models independently and averaged raw logits to stabilize text representation.
- Outcome
- The final model was reviewed for practical classification behavior rather than a single standalone score, including rare-class recall and available-data constraints.
Evidence distribution by role
Can this work handle broad data surfaces while showing real graph-system depth?
AI-DLC / MLOps 6itemsCan this work make AI workflows repeatable, observable, and operationally reviewable?
NLP / LLM 4itemsDoes the research experience improve system decisions and evaluation design?
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Data Surfaces (multi)
Maturity (multi)
Artifacts (multi)
Disclosure (multi)
AI-DLC Stages (multi)
7 projects shown
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Contexta: Local-First ML Observability
AI-DLC / MLOps · Built project
ML experiments and deployment work often scatter metadata, records, and artifacts across tools, making reproducible local observability hard to maintain.
Lynxes: Graph Analytics Engine
Data Systems · Built project
Existing Python graph libraries and generic dataframe wrappers often struggle to combine memory efficiency, traversal performance, and lazy query optimization for large graph analytics.
EMR-Based Nursing Surveillance for Automatic ICD Coding
NLP / LLM · Published work
Nursing surveillance required diagnosis-related classification, but key clinical signals were fragmented across heterogeneous EMR sources.
Dalkom Shop: Internal Employee Mileage Commerce Platform
AI-DLC / MLOps · Built project
The project needed cloud infrastructure and platform foundations that could reliably support search, notifications, admin workflows, and ongoing operations.
Devridge: LLM-Based Feedback Bridge for Developers
NLP / LLM · Prototype
Developers working alone often need UI, performance, or code quality feedback, but they rarely have an easy way to gather role-specific input at the right time.
BloGeek: AI Modules for a React + Spring Blog Project
NLP / LLM · Built project
The product needed ML components that could classify emotional polarity and generate stylistic variations of text to support richer blog content workflows.
FRIMO: Conversational AI for Emotional Support and Diary Generation
NLP / LLM · Built project
The product needed ML components that could recognize user emotion and support a diary-generation workflow from daily conversation logs.