November 2022
Intermediate to advanced
276 pages
3h 51m
Chinese
Content preview from 流架构
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12 ｜
第
0
章
0.1
金融中的万维流
基于参与各种价值建设活动的各方之间的数据（即货币）交换，构成了我们
的金融系统。因此，金融公司成为率先采用
IEFS[
包括事件元数据协议（
EMP
）、
事件订阅接口（
ESI
）
]
也就不足为奇了。信用卡行业迅速利用
IEFS
为客户提
供实时预算处理、家长控制和其他对时间敏感的服务。
然而，将实时信用卡和借记卡交易数据与新的中央银行报告服务集成在一起，
才能成为美国政府“实施经济”（
RTE
）计划的开端。
RTE
计划在每个工作
日发布关键经济数据，包括通货膨胀、
GDP
和购买趋势，并提供
IEFS
接口，
使订阅者能够在数据发布后立即接收。例如，银行使用
IEFS
接口快速调整其
投资组合中贷款和投资的风险分析。有趣的是，美联储已经报告说，打算最
早在明年将这种报告提高到每小时一次（延迟
4
小时的数据），而银行也热
切地期待着这种变化。
股票市场也渴望利用实时流标准带来的优势。尽管股票和商品市场已经采用
了数据流来实现高频交易和其他自动交易程序，但事件流标准的引入大大降
低了访问和处理这些数据流的成本。软件
API
成本的迅速降低和上述说的事
件流相结合，这导致了业余交易者的惊人增长，以及一批旨在利用人工智能
算法和其他计算方法试图超越市场的新型金融服务公司的诞生。
这些算法大多数都未能在市场上保持任何优势，而另一些则是灾难性的。例如，
位于威斯康星州密尔沃基的
Komputrade
是一家只有两名员工的初创公司，它
被认为是
2023
年
3
月
8
日
Komputrade
崩溃的罪魁祸首。当时，由于该公司
的算法造成的异常，使得所有美国股市都暂停了一个半小时。 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.