Skip to work

AI engineer at GM Solutions in Hà Nội. I teach computers to spot things in photos and video, and build systems that let language models answer from your own documents, with sources.

Grew up in Hạ Long. Also an M.Sc. student in Information Systems at HaUI. Off the clock: lifting heavy, dressing loud.

Hà sitting in an open car door at night, lit by camera flash
main characterkicks, clean
Hà in an orange cap with a white flower logo, close up
cap. orange. always.

Work

the serious bit. real numbers, no filler.

Close-up of a rice leaf with brown spots, boxed by the detector

2025, undergrad thesis

Spotting rice leaf disease from photos

0.732

mAP@50-95 for YOLOv8, ahead of Faster R-CNN and SSD, across 8,040 annotated images from Vietnamese rice paddies.

Read the paperDownload PDF
Classroom CCTV frame with students boxed and labelled as person

2024, undergrad thesis

Tracking people in classroom CCTV

56×

faster inference with YOLOv8 than Faster R-CNN, and 85.71% accuracy against 71.43%, even in low light.

Read the paperDownload PDF

2026, at GM Solutions

A GraphRAG platform I can't show you

Vietnamese document Q&A with citations: vector search fused with a knowledge graph, behind per-document access control. Client: xxxxxxxxx. Details: xxxxxxxxxxxx.

In progress

2026 to 2027, master's thesis

Vietnamese sign language to speech

The plan: hand and body keypoints, a sequence model, then Vietnamese text-to-speech. No results yet. Ask me again next year.

Bloopers

straight from my thesis figures. models are confident. not always right.

A Woody toy close up, boxed by the detector as person with confidence 0.74
person, 0.74.
it's Woody.
Two cats in a meme photo, both boxed as cat at 99 to 100 percent
cat, 100%.
no further questions.
Strawberries boxed as ripe and unripe with certainty scores
unripe, 97.2%.
honestly, fair.
Busy street traffic with dozens of cars and buses boxed
rush hour.
boxes everywhere.

Off the clock

lifting, fits, and a camera roll that's mostly gym mirrors.

Hà flexing both arms in a bathroom mirror
flex detected
Gym mirror selfie with headphones on
playlist: classified
Hà with dyed hair, face half hidden in a black hoodie
new hair, who dis

Vịnh Hạ Long

hometown. grew up next to all this.

tear one off

Say hi

Got a project, a paper, or a gym split to argue about? Email me.

hi@nguyenha.online