知鸦日报2022-10-27

作为一名交互设计师，我经历过国内零售电商产品，后又从进口转战出口。用户群从国内用户变成欧美用户，一开始固执地保留着很多“中式”设计方式，导致我屡屡碰壁。

其实中西方电商网站在体验设计上有很多显著差异，而造成这些差异的原因是非常值得讨论的。下面从几个区别点展开讨论，希望可以给大家带来更多思考。

以积目App的实践为例，从算法和工程两方面，介绍卡牌社交推荐的架构设计。

探讨如何在闲鱼大流量的业务场景下，实现高性能实时优惠计算，提供良好的业务可扩展和数据一致性。

本文想换个视角，分享下低代码技术在产研团队应用落地的相关话题。

如何将 notebook 应用在数据研发中？

生产环境coredump排查经验总结及分享。

OPPO低代码大屏——响应式布局实现方案分享，并从公式推导、分类讨论（图文辅助）和在线demo三个维度，讲解scale值的计算规则（重点、难点、晦涩点）。

At Uber, data informs every decision. Presto is one of the very core engines that powers all sorts of data analytics at Uber. For example, the operations team makes heavy use of Presto for services such as dashboarding; the Uber Eats and marketing teams rely on the results of these queries to make decisions on prices. In addition, Presto is also used in Uber’s compliance department, growth marketing department, and ad-hoc data analytics.

The scale of Presto at Uber is large. Currently, Presto has 9,000 daily active users, processing 500K queries per day and handling over 50PB of data. Uber’s infrastructure encompasses 2 data centers with 7,000 nodes and 20 Presto clusters across 2 regions.

In Homefeed, ~30% of recommended pins come from pin to pin-based retrieval. This means that during the retrieval stage, we use a batch of query pins to call our retrieval system to generate pin recommendations. We typically use a user’s previously engaged pins, and a user may have hundreds (or thousands!) of engaged pins, so a key problem for us is: how do we select the right query pins from the user’s profile?

我所知道的 JavaScript 的 switch 语句只有一种写法。但要说到对分支的处理，写法可就多了去了。if 分支写法可以算一种，switch 分支写法可以算第二种，第三种是使用策略模式，如果要把条件运算符也算上的话，嗯，刚好四种。

Introduction of Airbnb interleaving experimentation framework, usage and approaches to address challenges in our unique business.

How Airbnb built a persistent, high availability and low latency key-value storage engine for accessing derived data from offline and streaming events.

“Telematics”, a cross between the words telecommunications and informatics, was coined in the late 1970s to refer to the use of communication technologies in facilitating exchange of information. In the modern day, such technologies may include cloud platforms, mobile networks, and wireless transmissions (e.g., Bluetooth). Although the initial intention is for a more general scope, telematics is now specifically used to refer to vehicle telematics where details of vehicle movements are tracked for use cases such as driving safety, driver profiling, fleet optimisation, and productivity improvements.

We’ve previously published this article to share how Grab uses telematics to improve driver safety. In this blog post, we dive deeper into how telematics technology is used at Grab to encourage safer driving for our driver and delivery partners.

极光蓝包装盒成潮流标识，得物App成年轻潮人精神归属，特殊的包装材料已经在消费者之间形成了强大的心智，极光蓝等于得物。

但是由于早期箱型尺寸数据由人工经验设计，出现包装箱尺寸和商品尺寸匹配度不高的问题，一般会造成以下影响：

• 不合理的纸箱尺寸导致部分商品使用了较大的纸箱，造成了纸箱采购成本的浪费。
• 较大纸箱会造成运输成本的增加。
• 商品和纸箱之间的空隙过大，可能在运输过程中造成商品的损坏。

Unity 优化涵盖范围大,涉及知识面广，随着功能不断增长,需要优化的内容也在增多。在VI销冠神器的几次迭代中发现项目的各项性能指标都存在偏差,所以开始着手进行项目的优化工作。

本篇文章以浅显易懂的角度介绍一下 Unity 优化和VI销冠神器的优化经验。

创意作为一种信息载体，将广告主的营销内容呈现给用户，辅助用户消费决策，乃至激发潜在需求。通常，创意可表现为文本、图片及视频物料的单一或组合形式，而创意优化旨在提升创意物料的业务价值，本文简要聊聊针对创意文案自动撰写的一些探索与实践，整体分五部分：第一部分简述广告文案优化的必要性；第二部分介绍文本生成相关概念及主流方法；第三部分介绍在文案生成方面的探索实践；第四部分借鉴业界研究成果，探讨文案自动生成未来的一些工作思路；最后做下小结。

本文分析的是我们在面对天猫校园业务-如意pos，在一个复杂应用场景下的一些项目管理模式的思考探索和落地实践，monorepo 本质上不是一种框架，而是面对一个项目发展阶段，寻求满足当下最适合自己的方案的一个解决思路策略。