PUBLICATIONS & ESSAYS

Research & Perspectives

Field notes on China A-share quantitative factor research, LLM information extraction, and the historical reality of technological systems.

ARCHIVE & ESSAYS

When Your Alpha Rests on a 0.087 Jaccard Index

In quant land, everyone presents their stack as Swiss watchmaking. Every gear meshes to the microsecond, every timestamp observes strict point-in-time (PIT) hygiene, look-ahead bias has been exorcised, and backtested alpha curves climb as smoothly as a sovereign bond yield.

Then you put large language models in charge of turning millions of exchange disclosure transcripts into entities, relations, and event atoms.

The Swiss watch instantly turns into a bowl of jelly.

An engineer measures a wobbling jelly labelled Market Volatility with calipers while a manager sips tea beside a flat chart titled 100% Model Robustness.

Institutional Diligence & Data Access

For research whitepapers, historical point-in-time factor feeds, and bespoke dataset methodology.