Chris Fonnesbeck
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fonnesbeck.bsky.social
Chris Fonnesbeck
@fonnesbeck.bsky.social
Quantitative hack, PyMC Labs
This is going to be great. Don't miss it if you happen to be at OSDC AI West!
This week at @odsc.bsky.social AI West 2025, we're hosting a hands-on #PyTensor tutorial!

Learn how the computational graph library powering #PyMC makes probabilistic models scalable & efficient, supports complex inference, and drives real-world AI decisions.

See you there!

#ODSC2025
October 28, 2025 at 1:11 PM
Reposted by Chris Fonnesbeck
What if your next product test didn’t need a human panel?

New research by #PyMC Labs & #Colgate-Palmolive shows LLMs can replicate human survey patterns with 90%+ accuracy—no fine-tuning, no panels, no bias.

Read the white paper: dub.link/ifoZHIR
#SyntheticConsumers
AI-based Customer Research: Faster & Cheaper Surveys with Synthetic Consumers
dub.link
October 10, 2025 at 12:51 PM
Why does VS Code look for local paths when running on a remote server? I know ssh is new technology, but it should be doing better than this.
October 9, 2025 at 6:25 PM
The day I see an ad on Duolingo will be my last on the platform, 1412-day streak be damned.
October 8, 2025 at 3:49 AM
Years ago I passed up an opportunity to work with Nick, and I still regret it. Don't be me.
October 3, 2025 at 11:55 PM
Reposted by Chris Fonnesbeck
The Cincinnati Reds are hiring for our Baseball Ops and Analytics trainee roles!

Based in Cincy
$20/hr (+ COL stipend for trainees in Cincy)

www.teamworkonline.com/baseball-job...
Cincinnati Reds
Connect with 1,500+ employers from the NFL, NBA, WNBA, MLB, NHL, MLS, NWSL, college athletics, sports tech startups, agencies, arenas, and more
www.teamworkonline.com
October 3, 2025 at 10:35 PM
Some fresh Van Halen graffiti in East Nashville actually warms my heart.
October 3, 2025 at 11:52 PM
Halloween decorations in September. Why??
September 20, 2025 at 9:52 PM
Reposted by Chris Fonnesbeck
You are here.

(h/t @seanhowe.bsky.social)
September 18, 2025 at 3:05 PM
polars badly needs a `factorize` function. #python
September 18, 2025 at 2:12 PM
Disney+, Hulu Live TV cancelled. Disney stock sold. Spring break Disney vacation cancelled.
September 18, 2025 at 2:05 PM
A nice primer on normalizing flows by PyMC/PyTensor devs Ricardo and Jesse. pytensor.readthedocs.io/en/latest/ga...
Normalizing Flows in PyTensor — PyTensor dev documentation
pytensor.readthedocs.io
September 15, 2025 at 8:39 PM
Reposted by Chris Fonnesbeck
Vanderbilt Biostatistics professor Frank Harrell @f2harrell.bsky.social is presenting a hybrid seminar on Wednesday 9/17 at 1:30 pm Central that is open to all: "Goal-Driven Flexible Bayesian Design" #ClinicalTrials www.vanderbilt.edu/biostatistic... Photo: Erin O. Smith/VUMC
September 12, 2025 at 2:52 PM
Reposted by Chris Fonnesbeck
We just dropped the most comprehensive #PyMC-Marketing vs. #Meridian 𝐐𝐮𝐚𝐧𝐭𝐢𝐭𝐚𝐭𝐢𝐯𝐞 𝐂𝐨𝐦𝐩𝐚𝐫𝐢𝐬𝐨𝐧 ever conducted!

Check out our findings & code 👇👇
dub.link/CLWnkdf

#MMM #MarketingMixModel #PyMCMarketing #Meridian
PyMC-Marketing vs. Meridian: A Quantitative Comparison of Open Source MMM Libraries
This benchmark study directly compares PyMC-Marketing and Google’s Meridian on realistic synthetic datasets, from startup-scale to enterprise-level. Using aligned priors and identical configurations, ...
dub.link
September 11, 2025 at 1:20 PM
For anyone interested in learning about what goes on under the hood of PyMC, this short series of talks is for you! 🚀
September 10, 2025 at 1:48 PM
Even Moldova's goal was scored by Norway.
September 9, 2025 at 8:53 PM
Rather ironic that google-chrome-stable now core dumps every time I open it.
September 8, 2025 at 2:43 PM
Gunner Stockton threw for zero touchdowns v Austin Peay? That's concerning.
September 6, 2025 at 11:23 PM
All the major LLMs are poor at working with Jupyter Notebooks. All of them. Very strange that they are tripped up by simple JSON.
September 5, 2025 at 8:43 PM
Reposted by Chris Fonnesbeck
We had an incredible time at PyData Berlin ✨

Such a vibrant community, from the conversations and presentations to the speakers and attendees, the energy was just amazing.

A huge thank you to @pydata.bsky.social for continuing to nurture a community that inspires and connects us all!🙌
September 5, 2025 at 1:20 PM
Impressed by how little packaging the Pixel 10 is encumbered with.
September 3, 2025 at 9:56 PM
Reposted by Chris Fonnesbeck
🤝 Announcing PyMC Labs x @fivetran.bsky.social Partnership: Marketing Mix Models in minutes, not weeks

Data prep was the biggest #MMM bottleneck. We solved it.

✓ Direct integration with Fivetran ad_reporting
✓ Production-grade Bayesian MMMs instantly
👉 dub.link/csv37dq
September 3, 2025 at 12:58 PM
If you want to see an LLM grind to a halt, ask it to edit a Jupyter notebook.
August 27, 2025 at 10:41 PM
It never stops being funny.
August 27, 2025 at 9:24 PM