信号组合

Lesson Overview

In "Quant Strategy Development" → "信号与优化", this lesson "信号组合" builds knowledge you can apply immediately.

信号组合可以加权或规则投票，但分数的尺度与相关性必须先处理。两个高度相关因子并不提供两倍独立信息。 只用训练段拟合标准化→固定权重→对齐缺值→记录总分→在未来段评估；不按未来成绩每天改权重。 本课作业：给已标准化因子A=1.2、B=−0.4，权重0.6/0.4，计算组合分数；缺B时能否直接当0？

Core Concepts

These points align with the video walkthrough—take notes as you watch.

• ▸信号组合可以加权或规则投票，但分数的尺度与相关性必须先处理。两个高度相关因子并不提供两倍独立信息。
• ▸只用训练段拟合标准化→固定权重→对齐缺值→记录总分→在未来段评估；不按未来成绩每天改权重。
• ▸本课作业：给已标准化因子A=1.2、B=−0.4，权重0.6/0.4，计算组合分数；缺B时能否直接当0？

Practical Application

After studying, complete the companion practice lesson to move from understanding to doing.

• ▸Follow along in Jupyter or VS Code
• ▸Log how parameter changes affect backtest results
• ▸Submit a reproducible analysis notebook

FAQ

• ▸Q: How does this lesson fit the course? A: Part of "信号与优化"—follow the curriculum order.
• ▸Q: What do I need? A: Demo account and notes; quant lessons need a Python environment.
• ▸Q: How do I know I've mastered it? A: Pass the quiz and explain three key points of 信号组合 on your own.