公司:Uber
优步(英语:Uber,/ˈuːbər/)是一间交通网络公司,总部位于美国加利福尼亚州旧金山,以开发移动应用程序连结乘客和司机,提供载客车辆租赁及媒合共乘的分享型经济服务。乘客可以透过应用程序来预约这些载客的车辆,并且追踪车辆的位置。营运据点分布在全球785个大都市。人们可以透过网站或是手机应用程序进入平台。
优步的名称大多认为是源自于德文über,和over是同源,意思是“在…上面”。 (页面存档备份,存于互联网档案馆)
然而其营业模式在部分地区面临法律问题,其非典型的经营模式在部分地区可能会有非法营运车辆的问题,有部分国家或地区已立法将之合法化,例如美国加州及中国北京及上海。原因在于优步是将出租车行业转型成社群平台,叫车的客户透过手机APP(应用程序),就能与欲兼职司机的优步用户和与有闲置车辆的租户间三者联系,一旦交易成功即按比例抽佣金、分成给予反馈等去监管化的金融手法。
2019年5月10日,优步公司透过公开分发股票成为上市公司,但首日即跌破分发价。
据估算,优步在全球有1.1亿活跃用户,在美国有69%的市占率。优步亦在大中华区开展业务,目前优步已在香港和台湾建成主流召车服务平台,并于中国大陆通过换股方式持有该市场最大网约车出行平台滴滴出行母公司小桔科技17.7%经济权益。
Enabling Infinite Retention for Upsert Tables in Apache Pinot
Apache Pinot™ was originally designed as an append-only OLAP (online analytical processing) database. After some redesign, it was modified to support upserts, which are UPdates plus inSERTs. This…
Streamlining Financial Precision: Uber’s Advanced Settlement Accounting System
In the realm of fintech, settlements, refunds, and chargebacks related to PSPs (payment service providers) are crucial transactions that involve the transfer of funds between different financial…
Open Source and In-House: How Uber Optimizes LLM Training
Generative AI powered by LLMs (Large Language Models) has a wide range of applications at Uber, like Uber Eats recommendations and search, customer support chatbots, code development, and SQL query…
Genie: Uber’s Gen AI On-Call Copilot
In today’s fast-paced tech environment, maintaining robust on-call operations is crucial for ensuring seamless service functioning. Modern platform engineering teams face the challenge of efficiently managing on-call schedules, incident response, communication during critical moments, and strong customer support on Slack® channels.
This post describes Genie, an on-call copilot we built that uses generative AI to optimize communication and question-answering with on-call engineers.
Making Uber’s ExperimentEvaluation Engine 100x Faster
Learn how Uber was able to reduce evaluation latencies by a factor of 100x in their Experimentation platform, which is used to empower decision making across the company by processing over 10 million…
Preon: Presto Query Analysis for Intelligent and Efficient Analytics
Presto™ is an open source SQL query engine used on a large scale at Uber. Uber has around 20+ Presto clusters comprising over 12,000 hosts. We have about 7,000 weekly users and run about half a million queries per day. Presto has various use cases at Uber like ad hoc interactive analytics, ETL and batch workloads, dashboarding, data quality checks, report generation, experimentation, and data-driven services. Due to the scale of the system, there are various opportunities to make it more efficient. However, these opportunities need intelligence regarding the queries being processed by the system.
How to Measure Design System at Scale
Learn how Uber made a breakthrough in tracking design metrics across Figma, Android, and iOS with Design System Observability.
QueryGPT – Natural Language to SQL Using Generative AI
SQL is a vital tool used daily by engineers, operations managers, and data scientists at Uber to access and manipulate terabytes of data. Crafting these queries not only requires a solid understanding of SQL syntax, but also deep knowledge of how our internal data models represent business concepts. QueryGPT aims to bridge this gap, enabling users to generate SQL queries through natural language prompts, thereby significantly enhancing productivity.
QueryGPT uses large language models (LLM), vector databases, and similarity search to generate complex queries from English questions that are provided by the user as input.
This article chronicles our development journey over the past year and where we are today with this vision.
Transforming Executive Travel: Delegate Booking with Uber
In the competitive world of corporate travel, efficiency and precision are paramount. At Uber, we’ve recognized a specific need within this sector: senior executives and their assistants require a streamlined and reliable booking experience. To address this, we developed the Delegate Booking tool, a significant enhancement to our platform designed to empower executive assistants (EAs) to manage travel with ease and precision.
DataMesh: How Uber laid the foundations for the data lake cloud migration
Learn how Uber is streamlining the Cloud migration of its massive Data Lake by incorporating key Data Mesh principles.
Lucene: Uber’s Search Platform Version Upgrade
In the dynamic ecosystem of Uber, search functionality serves as the backbone for numerous critical operations, ranging from matching riders to drivers, to geo search functionalities within Uber ride apps, to facilitating seamless exploration of restaurants and dishes in Uber Eats. The reliance on search is paramount, given the diverse and extensive nature of Uber’s service offerings.
The Search Platform team at Uber has built an in-house search engine on top of Apache Lucene, with the primary objective of establishing a unified search infrastructure across all business verticals. Since its inception in 2019, the service has operated on Lucene version 7.5.0, which is two major versions and nearly four years behind the latest iteration.
Pinot for Low-Latency Offline Table Analytics
Learn how Uber uses Apache Pinot for serving over 100 low-latency offline analytics use cases.
Continuous deployment for large monorepos
In this blog, we share how we reimagined CD at Uber to improve deployment automation and UX of managing microservices, while tackling the peculiar challenges of working with large monorepos.
Shifting E2E Testing Left at Uber
Learn how we achieved diff-time E2E testing for thousands of microservices at Uber.
Sparkle: Standardizing Modular ETL at Uber
Discover how Uber's in-house ETL framework helps standardize modular ETL development, improving developer productivity and ensuring reliable data pipelines.
Upgrading Uber’s MySQL Fleet to version 8.0
Learn all about our journey of successfully upgrading our MySQL fleet at Uber from v5.7 to v8.0, enhancing performance and reliability.