From First Principles: From AI’s Underlying Logic to AI Trading I. The Underlying Logic of Large Models Before delving into AI trading, it’s essential to clarify the computational essence of large models. Many people treat large language models (LLMs) as black boxes, assuming they “understand” language and can “think” through problems. In reality, when dissected, they operate on a set of vector operations. Core Idea: Represent Everything with Vectors Humans use words and grammar to convey meaning. Machines, however, only recognize numbers. The first step for large models is to map discrete tokens (which can be words or subwords) to …
Comprehensive Guide to Microsoft Qlib: From Beginner to Advanced Quantitative Investment Strategies What Is Qlib? Microsoft Qlib is an open-source AI-powered quantitative investment platform designed to streamline financial data modeling and strategy development. It provides end-to-end support for machine learning workflows, including data processing, model training, and backtesting. The platform excels in core investment scenarios such as stock alpha factor mining, portfolio optimization, and high-frequency trading. Its latest innovation, RD-Agent, introduces LLM-driven automated factor discovery and model optimization. Why Choose Qlib? Multi-Paradigm Support: Integrates supervised learning, market dynamics modeling, and reinforcement learning Industrial-Grade Design: Modular architecture with loosely coupled components …