Thinking in public · 在公开处思考

dull-bird

"dull-bird" is a nickname of mine. The slow bird starts early — so I share my thinking about new technology, especially AI, out in the open. My belief is simple: help more people enjoy technology, more equally.

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dull-bird 呆鸟

Research papers

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Quantitative Finance

Deep learning for enhanced index tracking

This paper formulates enhanced index tracking as a dynamic rebalancing problem: select large index constituents, then let a structured neural network allocate weights under tracking-error, excess-return, CVaR, and transaction-cost considerations.

Jun 7, 202417 min read2024
The Journal of Derivatives

Which neural network works best for quadratic hedging?

This is a benchmark paper rather than a new hedging trick: it compares Multi-net, Single-net, and RNN architectures for dynamic hedging across high-dimensional and long-horizon settings.

Sep 1, 202214 min read2022

Latest writing

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open source

Becoming the First External Contributor to an "OpenAPI for CLIs": An AI-Assisted Open Source Practice

I stumbled onto CLI Schema, an open spec almost nobody has heard of — an 'OpenAPI for command-line programs.' Three things here: what it is, how I used AI to contribute, and what I learned about working with a maintainer who is rarely online.

Jul 24, 20268 min read
the future

The future is here, unevenly

Gibson's line is over-quoted. But every time I actually pick up a new tool, I believe it more — the gap isn't time, it's who reaches first.

Jun 18, 20266 min read
method

Slow bird: learning in public

I'm not the fastest bird, but I can be the one that starts early. Publicly clumsy beats privately perfect.

May 30, 20264 min read
dull-bird 呆鸟

The future is already here — it's just not evenly distributed.

William Gibson