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Alexandra Johnson Profile
Alexandra Johnson

@alexandraj777

Followers
2K
Following
1K
Media
75
Statuses
892

Co-founder and CEO @RubberDuckyLabs (YC W23) Prev: @southpkcommons member, @SigOpt + @gantry_ml founding teams, AI PM @Citrine_io, SWE @Polyvore, @RenttheRunway

San Francisco
Joined November 2009
Don't wanna be here? Send us removal request.
@alexandraj777
Alexandra Johnson
7 months
Congrats to the @Bauplan_labs team on the their launch!!
@Bauplan_labs
Bauplan
7 months
πŸš€ Introducing Bauplan A serverless, code-native platform for building data and AI pipelines β€” directly on your object store. No clusters. No notebooks. No GUI based workflows. Just Python + SQL + S3. πŸ‘‰ https://t.co/aJGGCltlAg
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@alexandraj777
Alexandra Johnson
7 months
Very excited to be onboarding with @CalvinnChenn at @fetchrhq -- AI has brought so much energy and optimism to online shopping! Can't wait to see the clothing picks.
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@alexandraj777
Alexandra Johnson
8 months
RTing for reach
@NathanFlurry
Nathan Flurry πŸ”©
8 months
Need feedback from Cloudflare Durable Objects/PartyKit/Agents devs: I keep getting people DMing along the lines of "@ActorCore_org is so much easier to use than Durable Objects", but I don't know how to best refine this message. How would you phrase it?
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@NathanFlurry
Nathan Flurry πŸ”©
8 months
Announcing: 🎨 Rivet Studio v1.0 A powerful development environment for @rivet_gg Actors & @CloudflareDev Durable Objects for realtime apps. 🧠 View/edit actor state πŸ“ž Test RPCs like Postman πŸ” Explore live connections πŸ”₯ Hot reload everything β†’ studio (dot) rivet (dot) gg
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@alexandraj777
Alexandra Johnson
10 months
Praying for a full recovery πŸ™ This attack is terrifying
@AISinEater
𓏴𓀿𓁼𓀐𓏴
10 months
i was recently discharged from the icu at the sf hospital after traumatic brain injury due to a man hitting me on the back of my head with a metal pipe, completely unprovoked, in the mission in san francisco. this man is known to the police since he’s done this before to other
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@alexandraj777
Alexandra Johnson
10 months
And Family Thanksgiving Dinner Outfits
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@alexandraj777
Alexandra Johnson
10 months
Summer BBQ Fits from Claude
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@alexandraj777
Alexandra Johnson
10 months
Hey Claude, can you generate me some images that show how you view the aesthetics of NYE outfits?
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@NicholasKissel
Nicholas Kissel
11 months
Startups launch regardless if its near Christmas or not.
@rivet_dev
Rivet
11 months
Rivet Actors are the fastest way to build and scale realtime apps. Available today πŸ“…
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@Orrick
Orrick
1 year
Orrick’s Laura Barr connected with @alexandraj777, the CEO and Co-Founder of Y Combinator-backed @RubberDuckyLabs, for an inspiring conversation about deploying AI to improve recommender systems. Watch the video to learn more.
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@johnvmcdonnell
John McDonnell
1 year
New post on @RubberDuckyLabs: @alexandraj777 and I have heard a lot of horror stories of ML and senior leaders completely talking past each other when it comes to metrics. To optimize on CLTV, stop trying to iterate on CLTV! Use tactical goals instead.
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@johnvmcdonnell
John McDonnell
1 year
What makes some RecSys teams operate so much more effectively than others? It's all about unblocking the fast iteration loop.
@alexandraj777
Alexandra Johnson
1 year
To paraphrase Russian author Leo Tolstoy: All happy RecSys teams are alike; all unhappy RecSys teams are unhappy in their own way. Many struggle with common pitfalls: slow iteration, poor instrumentation, and unclear success metrics. https://t.co/RokR5orQJj
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@alexandraj777
Alexandra Johnson
1 year
Follow along for more! And reach out if the ideas in the blog post resonate with you πŸ™
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@alexandraj777
Alexandra Johnson
1 year
That's easier said that done - at @RubberDuckyLabs we've seen RecSys teams encounter unique challenges prototyping and shipping. Our new blog post series shares real-world best practices of successful recommender systems teams.
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@alexandraj777
Alexandra Johnson
1 year
A successful team doesn’t succeed by being right every time: Most ideas end up on the chopping block. What differentiates a successful team is the ability to experiment with ideas quickly to find the few that truly make a difference.
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@alexandraj777
Alexandra Johnson
1 year
To paraphrase Russian author Leo Tolstoy: All happy RecSys teams are alike; all unhappy RecSys teams are unhappy in their own way. Many struggle with common pitfalls: slow iteration, poor instrumentation, and unclear success metrics. https://t.co/RokR5orQJj
Tweet card summary image
rubberduckylabs.io
To paraphrase Tolstoy: All happy RecSys systems teams are alike, all unhappy RecSys teams are unhappy in their own way. What differentiates a successful team is the ability to experiment with ideas...
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@alexandraj777
Alexandra Johnson
2 years
At the last Heavybit summit, @stefkrawczyk let me drag him into leading an MLOps session together. This snowballed into a longer conversation musing on the nature of MLOps over the last decade πŸ‘‡
@heavybit
Heavybit
2 years
We at Heavybit fully expect machine learning to be the next great driver of change in operations. But MLOps seems to have fallen short of expectations. Why? Hear from @azimman, @alexandraj777, @AndrewFong, and @stefkrawczyk.
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@BlumLenore
Lenore Blum
2 years
The incredible @Alexandraj777 CEO of @RubberDuckyLabs back at @SCSatCMU @CarnegieMellon for her 10th reunion during Spring Carnival visiting Women@SCS students in front of my old office in Gates! None of the undergrads here were born when I started Women@SCS 25 years ago!
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@alexandraj777
Alexandra Johnson
2 years
Personalization and recommender systems LFG! Think through how you can personalize every surface of your product to reflect your users' preferences, from copywriting to product recommendations.
@soumithchintala
Soumith Chintala
2 years
As AI models get to some baseline level of intelligence, the moat might transition to human preferences -- whether the model is giving you the answer you want, not just the most frequently preferred answer. If this happens, companies who already have personalization models on
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@alexandraj777
Alexandra Johnson
2 years
This is so close to the truth it's scary -- Rubber Ducky Labs's name was inspired by the giant rubber ducky art exhibit that visited Pittsburgh in 2013, almost exactly a decade ago!
@slaterstich
Slater Stich
2 years
Dialing in from @RubberDuckyLabs 's UK launch (OK, this last one is real: https://t.co/peTIENLeK4)
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