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把投研当软件工程做——一个AI工程师的第1周

把投研当软件工程做——一个AI工程师的第1周

这是个新号,先讲清楚我打算做什么。

我是一个AI工程师,业余炒A股大概5年。最近这一年我越来越确信一件事——A股投研的最大问题不是没数据,是没工程

这句话什么意思?

上周我想搞清楚一个简单问题:章源钨业的钨精矿自给率到底是多少?

这个数字直接决定它该值15倍PE还是50倍PE——自给率高,钨价上涨大部分变成公司利润;自给率低,公司本质是个加工厂。

我打开五条雪球高赞回答、东方财富两篇资讯文章——给出了个完全不同的数字:60%、20%。没有一个标明数据来源。

后来我翻了公司2024年年报——答案是20%,白纸黑字写在那里。

问题不是没数据,是没人愿意去翻。

但即使这20%被准确读取了,故事还没完。

钨价从去年到现在涨了5倍。如果章源自给率是60%,它的利润弹性是巨大的;自给率20%,它本质就是个加工厂,弹性大打折扣。这一个参数的差异,让股价合理估值差出一大截。

而这种"关键参数"在A股投研里到处都是——它们都不在任何单一研报里,需要你自己去拼。

我在做软件的世界里待过几年,那里有个规则:任何不能被复现的结论都不是结论,是观点。这个规则在A股投研里完全失效了。

所以我决定花6个月做一件事——把投研当软件工程做。

我打算搭一个系统。系统里有两个部分:

第一个部分:回答"什么时候、哪个赛道要起来"——这是时间维度的预判。

第二个部分:回答"动起来之后,哪些公司按什么顺序受益多大"——这是空间维度的映射。

举章源钨业的例子:

前瞻引擎 判断"小金属赛道"什么时候要起来——比如钨价上涨、库存下降、政策催化这些信号出现的时候。

拓扑引擎 判断"小金属赛道起来之后,哪些公司受益最大"——这时候自给率20%就变成了一个可计算的关键参数:它会让章源的弹性系数打折,受益强度排在同行后面。

这两个部分独立工作,但通过一个共享的"宇宙"协作——一张包含公司、技术、原料、政策、需求、事件六种实体的产业网络。

听起来抽象,给你看一段我这周写的代码:

@dataclassclass Entity:    idstr    typeLiteral["company""technology""material"                  "policy""demand""event"]    name: str    symbol: Optional[str] = None    # 仅公司有股票代码    sector_memberships: Dict[strfloat] = field(default_factory=dict)

一只股票(公司实体)可以同时属于多个赛道,每个赛道有一个浮点权重。比如歌尔股份既属于"端侧AI"赛道(权重0.6),又属于"消费电子"赛道(权重0.9)。

传统的"申万行业分类"假设每只股票只属于一个行业——这个假设在AI时代彻底失效。歌尔做AI眼镜组装的时候,把它归到"电子-消费电子"是丢失信息的。


这周我做的事情很基础——把这套数据结构定义出来,写了一个 yaml 配置文件描述了3个主题、6个赛道、30个实体、20条产业链关系。

CLI 跑通了第一个命令:

$ python -m investool universe-showUniverse v0.5.0: 3主题 / 6赛道 / 30实体 / 20边

看起来不多,但这是基础。接下来3周我会把前瞻引擎和拓扑引擎依次跑通。


这个系列我会每周写一次周记,记录这周做了什么、遇到了什么。前4周都是这种"过程记录",不立任何长期flag,不预测任何股票,不蹭任何热点

等我真的做出能给大家看的东西,再正式开一篇长文。

大概是4周后。先做到,再说出来。这是工程师的本能。


声明:本文是个人项目过程记录,不构成任何投资建议。

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  1. CONNECT:[ UseTime:0.000537s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001026s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000352s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000304s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000769s ]
  6. SELECT * FROM `set` [ RunTime:0.000311s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000840s ]
  8. SELECT * FROM `article` WHERE `id` = 615080 LIMIT 1 [ RunTime:0.000600s ]
  9. UPDATE `article` SET `lasttime` = 1778689916 WHERE `id` = 615080 [ RunTime:0.008966s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000369s ]
  11. SELECT * FROM `article` WHERE `id` < 615080 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000622s ]
  12. SELECT * FROM `article` WHERE `id` > 615080 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000578s ]
  13. SELECT * FROM `article` WHERE `id` < 615080 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001383s ]
  14. SELECT * FROM `article` WHERE `id` < 615080 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001456s ]
  15. SELECT * FROM `article` WHERE `id` < 615080 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001268s ]
0.108800s