Qunfei@Data, ML and AI Architecture
An architect making Architecture Matter.
Category: Uncategorized
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Sometimes technology genuinely makes life better. That’s why I love building things. 1. Why I Built This 😩 The problem: 🛠️ The solution: “Papa, this one has a funny picture.” The gap is not in the study app — Anki is battle-tested. The gap is in personalized content generation. 2. The Approach: Feed the Wheel,…
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1. Introduction I started where most people start: asking Claude.ai to analyze stocks for me. “What’s AAPL’s RSI?” — and it works, kind of. Claude can fetch data through MCP tools, compute a single indicator for a single ticker, and give you a reasonable answer. But the moment I tried anything real — “Screen all US stocks for oversold signals” or “Compare RSI and MACD across my…
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“All human knowledge is uncertain, inexact, and partial.” – Bertrand Russell Last week , we had three days intensive course – AI for Managers in ESMT Berlin 📚. I like to call them workshops for management . They aim to solve business problems with machine learning knowledge. I love ❤️ the process from a business…
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✈️ When AI Broke Rose’s Heart: A Travel Insurance Story That Changed Everything, The future story of how one woman’s denied claim exposed a hidden bias in artificial intelligence 🧠⚖️ — and the data scientist who fixed it 🛠️ ⚠️ Disclaimer: This narrative is fictional and intended for educational purposes. All insurance outcomes, accuracy figures…
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Summary Robot programming is still challenging — even for senior developers and kids! Why? Because it combines the physical world 🌍 with the software world 💻. AI hasn’t conquered the physical world yet 🤖🌍 — sensors, motors, and real-world variables still surprise us every day! ⚙️🔋🛞 In the end, we must face the real-world chaos…
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The Hard Problem in Database Migrations Online App: https://huggingface.co/spaces/neuesql/sqlgptapp The Problem A simple Oracle into Postgresql data migration solution analysis YES=Meet Need, X=Not at All, P=Partially Provider Schemamigrate Functionmigrate Store Proceduremigrate AWS DMS Y X X GOOGLE DMS Y X X Azure DMS Y X X Ora2pg Y P P Jooq Y P P Database…
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The things we strive for are just the bait… the struggle to get them with people that we care about gives us the personal evolution and the meaningful relationships that are the real rewards. —— Principles: Life and Work by Ray Dalio In the end, I no logger wanted to get to the other side…
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A Bellman equation, named after Richard E. Bellman, is a necessary condition for optimality associated with the mathematical optimization method known as dynamic programming.[1] It writes the “value” of a decision problem at a certain point in time in terms of the payoff from some initial choices and the “value” of the remaining decision problem that results from those initial choices.[citation needed] This breaks…
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With a high-frequency trading requirement, real-time and low-latency becomes the critical need in the trading system. I was a software architect who involved to upgrade a legacy system into a real-time gambling trading system for a billion-sized business. Based on the maturity of using streams, new machine learning ideas were down to earth significantly. Today…
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I am reading Programming Peals again. Wrote down some sentences that I think it is quite impressive, even it was 1999 book. the programmer’s main problem was not so much technical as psychological: he could not make progress because he was trying to solve the wrong problem. We finally solved his problem by breaking through his…
Qunfei@Data, ML and AI Architecture 