Timothy Chan

Data Scientist (Experimentation) at OpenAI. ex-VP of Data @Statsig. I used to be a real scientist.

[Mike Vernal @mvernal]

Today brings both wonderful but also bittersweet news – @OpenAI has announced its intent to acquire @Statsig. @vijayeraji will become the CTO of OpenAI applications, reuniting with @fidjissimo. 1/

[Timothy Chan @trchan1]

@getcaptionsapp Pretty impressive. The video looks very lively and more than just the run-of-the-mill AI avatar.

[Timothy Chan @trchan1]

@statsig 🔥 Can't wait for next year!

[Timothy Chan @trchan1]

@ScofieldSkye @sagecodes @statsig Nice find Sage!

[Timothy Chan @trchan1]

I'm excited to be presenting at ODSC West in San Francisco. Please stop by and say Hi!

[ODSC (Open Data Science Conference) AI @_odsc]

We asked @trchan1, Head of Data Science at Statsig, about his upcoming session at #ODSCWest:

“A/B testing has really evolved over the years. In my talk, I’ll dive into advanced techniques that tackle challenges like network effects, peeking,...”

https://t.co/yv3JDRwGBi

[Timothy Chan @trchan1]

@constantx @statsig Can you try now? https://t.co/fw4HdDJazl

[Timothy Chan @trchan1]

@constantx @statsig Hi, thanks for reporting. I've flagged this internally and we're looking into this.

[Timothy Chan @trchan1]

"in-office culture is stale and boring"
Meanwhile at @statsig....

[Timothy Chan @trchan1]

"Data Scientists are not chart makers"
- Fun anecdote I shared about pushing back as a Data Scientist against low-impact work.

[Timothy Chan @trchan1]

Teaming up on this one and hoping to share from our past mistakes and success.

[Statsig @statsig]

Learn common reasons analytics teams fail and how to make your data efforts count in our upcoming virtual webcast 📹

Featuring Head of Data, @trchan1 & Shachar Meir!

Save your spot: https://t.co/9MeN4jGfvA

#datascience #analytics #statsig #abtesting

[Timothy Chan @trchan1]

Definitely going to give this a read

[Timothy Chan @trchan1]

@statsig Launching cohorts, outlier detection, metrics capping and a complete UI overhaul is just called "Friday" at Statsig.

[ODSC (Open Data Science Conference) AI @_odsc]

Ahead of his ODSC West session, Dr. Timothy Chan discusses popular A/B testing methods used in the industry to get ideal results. @statsig https://t.co/GVnr0kkg3c

[ODSC (Open Data Science Conference) AI @_odsc]

Ahead of his ODSC West session, Dr. Timothy Chan discusses popular A/B testing methods used in the industry to get ideal results. @statsig @trchan1 https://t.co/JSksXgZJTe

[Timothy Chan @trchan1]

The one thing we've learned in the last week...

[Statsig @statsig]

It's officially Day 5 (and final) of Experimentation Week 🖐️

Scaling experimentation is as much a culture challenge as it is a statistical one.

Today we share a suite of collaboration features progressively developed into Statsig's core experimentation workflows!

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[Statsig @statsig]

Experimentation Week Day 4 - Announcing Interaction Detection 👏

Our customers run 100's of experiments concurrently. We explain how multiple experiments can have an interaction and how you can check for interaction effects on a set of metrics.

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[Statsig @statsig]

It's Experimentation Week - Day 2 ✌️

We're announcing one-click Stratified Sampling to make your experiment results more trustworthy and consistent.

See how this feature works in Statsig and helps you reduce false positive rates at the same power.

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#datascience #statsig

[Statsig @statsig]

It's Experimentation Week Day 3 👏

Today, we announce Differential Impact Detection to automatically flag when segments of users respond differently to an experiment - also described as Heterogeneous Effect Detection or Segments of Interest

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[Statsig @statsig]

Stratified sampling is especially useful for experiments where a tail-end of power users drive a large portion of a metric value, such as in B2B experiments with small sample sizes.

Read more: https://t.co/7GlAR2mIj4

2/3

#abtesting #datascience