Cecilia's Blog

我们没有必要因为世界变得荒诞而自己随之变得乖戾

No-Ski Winter Getaway in Tahoe

不滑雪的冬日太浩湖之旅

太浩湖是全美最大的高山湖,也是世界上最洁净的湖之一。三百万年前的地址曾断裂,陆地板块上下运动,上升的板块形成了周围Carson山脉和Nevada山脉,下降的板块在两大山脉中间形成太浩湖。它的洁净来自于三方面:它周围的花岗岩颗粒不会分解成细小的沙粒导致水体浑浊;大部分的降水直接落入湖中,没有受到污染;湖水的生态系统并不富含养分,因此不适宜藻类生长。如此的洁净度,走在太浩湖的沙滩上,若不是阵阵冷风,一瞬间我仿佛觉得走在夏威夷的海边。

Bay area stroll -- A guide to explore peninsula

湾区漫步指南(半岛篇)

相比于hiking,漫步更加日常休闲。不论是一时兴起的周末下午,还是工作了一整天想要放松筋骨的晚饭后,拿起手机、叫上同伴、换上衣服就可以立刻出发。着装和出行主题也可以根据当天的心情随意调整。想要放松久坐的疲惫,感受大自然的清新,可以换上休闲的瑜伽服,随意走走消除疲惫;想要记录美好的生活,同时远离喧嚣的人群,可以穿上新感悟的今日穿搭,拿上相机拍些美美的照片

Interference: A common pitfall in randomization

A typical practice in A/B testing is to treat users as testing units, i.e. randomly assign users to control group (A) to treatment group (B) and perform hypothesis testing between the two groups. But is it always a good idea?

How does early stopping affect A/B experiment?

In the tech industry, we use controlled experiments to learn and make decisions at every step of product development, from design to algorithms. A common question I, as a data scientist, often get from software engineers and business partners is can we continuously monitor the p-value and declare victory whenever it is below 0.05?

Crucial Conversation

生活中不乏争论、讨论,很多时候我们和对方其实有着共同目的,只不过隐藏在叙述角度的不同之下;也有很多时候,我们就是跟对方目的不同,即使如此,生活不是辩论比赛,没有裁判、观众需要我们用最犀利的语言,最刁钻的角度来赢得。我真正想要的是好好说话,有效交流。