信号を探す
静寂かな
Lusan ルーサン
Finding the signal where others stop looking.
from indirect data,
where no ground truth exists.
Every domain was the same question in a new language.
My career didn't follow a straight line. It followed a question.
It started with ships. Not metaphorically — literally. A ship is not a single object; it is an entire engineered world compressed into a floating structure. Hull dynamics, fluid mechanics, structural systems, electrical grids, navigation — every discipline coexists within one hull. Studying this established one instinct that shaped everything after: complex systems don't yield to specialists alone. You have to hold the whole.
Long before data science, there was design. Since middle school, building websites, crafting interfaces, and thinking about how products feel to use has been a constant personal practice — not a course taken, not a skill acquired later, but something grown from genuine curiosity over two decades. It is why, when AI product work demands a UI, a visualization, or a communication layer, there is no handoff. The same person holds it all.
The arbitrator between data, decision, and design.
I don't define my work as "data scientist" or "product manager." I define it as being the person who bridges data, decisions, and design.
Most AI products fail not because the technology is poor, but because there is an unowned gap between what the data says and what the product does. Bridging that gap requires fluency in three languages at once.
The same method, tested across radically different soils.
The domains I have worked across share almost nothing on the surface.
From ocean environments to human resources, from pharmaceutical commercial strategy to caregiving systems, from transportation to digital transformation. Each crossing was the same question in a new vocabulary: what is the signal here, and what noise is it buried in?
Each language is an entry point into a different way of thinking.
Four languages. Four distinct ways of structuring thought.
When speaking with engineers, product managers, designers, or executives, what I switch is not just language — it is the entire narrative logic.
If you want to know
what I have actually built —
The most complete map of my work is on LinkedIn. If you have a specific project or research topic in mind, let's connect there.
I typically respond to LinkedIn messages within 24 hours.