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Posts by Vianey Leos Barajas

With a sprinkle of panic โœจ

1 day ago 1 0 1 0
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a purple background with the words the final countdown below it ALT: a purple background with the words the final countdown below it

Tenure docs due mid-August. Very much feeling likeโ€ฆ

1 day ago 2 0 1 0

Which cafe?

2 days ago 0 0 1 0

I definitely needed these translations. If anyone has a broader stats/ML/AI terminology translation guide โ€” Iโ€™d find it very useful ๐Ÿ˜…

3 days ago 0 0 0 0

Hoping to change this, so Iโ€™ll be looking to bring on a PhD student in Fall 2027 (application due Nov 2026) to focus on analytics exclusively for womenโ€™s professional ๐Ÿ€ using womenโ€™s data.

In the meantime, weโ€™ve got a little working group going thatโ€™s laying the foundation + lots of games to go!

5 days ago 2 0 0 0
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Toronto has a new WNBA team & Iโ€™m beyond excited. Season tickets excited!

Over the past few months a group of us have collaborated with students & the data analyst at the tempo to look at the state of analytics for womenโ€™s basketball. Itโ€™s pretty bare ๐Ÿ˜ฅ

5 days ago 5 1 2 0

Abstract submission deadline getting closer (May 1, anywhere on Earth). Excited by all of the submissions received thus far, and excited to learn about all of the amazing research being done in statistical ecology.

Look forward to seeing you all in Mรฉrida, Mรฉxico!

5 days ago 0 2 0 0
cover of the book "Bayesian Workflow" by Gelman, Vehtari, et al. Coming out later this year, in the summer probably.

cover of the book "Bayesian Workflow" by Gelman, Vehtari, et al. Coming out later this year, in the summer probably.

I would have preferred to have the "draw the rest of the owl" meme on the cover, but this will do. Seems like it is on schedule, and we'll leave some typos so you know we didn't write it with AI.

2 weeks ago 376 57 12 8
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New pre-print! I cover a range of open capture-recapture models (single survey/robust design, multistate/multievent, in (Cormack-)Jolly-Seber variants) in Stan, and provide efficient log likelihood functions. I also introduce a method to account for unequal survey intervals in the entry process.

2 weeks ago 12 7 1 0
Looking for a postdoc to teach and develop Bayesian methods | Statistical Modeling, Causal Inference, and Social Science

Looking for a postdoc to teach and develop Bayesian methods
statmodeling.stat.columbia.edu/2026/03/31/l...

3 weeks ago 7 11 0 0
Bayesian Data Analysis course - Aalto 2025 โ€“ Bayesian Data Analysis course

I'm looking for a post-doc to help organize Bayesian Data Analysis course avehtari.github.io/BDA_course_A... (200 students) and to do research on Bayesian workflow users.aalto.fi/~ave/publica... at Aalto www.aalto.fi/en, Finland. Background in Bayes needed. Up to five year contract possible.

3 weeks ago 49 26 1 0
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Statistical Rethinking 2026 is done: 20 new lectures emphasizing logical and critical statistical workflow, from basics of probability theory to causal inference to reliable computation to sensitivity. It's all free, made just for you. Lecture list and links: github.com/rmcelreath/s...

4 weeks ago 598 193 11 11
Nutpie: state-of-the-art mass matrix adaptation for HMC | Statistical Modeling, Causal Inference, and Social Science

Nutpie: state-of-the-art mass matrix adaptation for HMC
statmodeling.stat.columbia.edu/2026/03/20/n...

1 month ago 18 6 0 0
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I mean, just look at this cutie! Almost as cute as a cat.

1 month ago 5 0 2 0

A must if youโ€™re presenting HMMs for animal movement, the HMM for wild haggis movement by @rolandlangrock.bsky.social @theomichelot.bsky.social cran.r-project.org/web/packages...

1 month ago 7 0 1 0
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Detecting Stellar Flares in Photometric Data Using Hidden Markov Models Detecting Stellar Flares in Photometric Data Using Hidden Markov Models, Esquivel, J. Arturo, Shen, Yunyi, Leos-Barajas, Vianey, Eadie, Gwendolyn, Speagle, Joshua S., Craiu, Radu V, Medina, Amber, Davenport, James R. A.

I guess also a difference of how you use it! For prediction of states, or modeling the data well.

Weโ€™re also doing HMMs for stellar flare detection in astronomy, hoping to get better estimates of the start/end flares and also how much energy is produced: iopscience.iop.org/article/10.3...

1 month ago 4 0 1 0
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Out of date now too, but (hierarchical) HMMs for speech recognition was fun to learn about.

My first shark paper โ€” there were observed white shark prey attempts (they jump out of the water!), and we could analyze how they use different movement strategies for hunting.

1 month ago 2 0 1 0

Off the top of my head (while on โœˆ๏ธ), thereโ€™s some old papers on using HMMs to recognize Tai Chi movements I always found cool.

Polar bears + differentiating between movement/behavior patterns & sea ice drift! @marieaugermethe.bsky.social besjournals.onlinelibrary.wiley.com/doi/pdfdirec...

1 month ago 4 0 1 0
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I might have to change my research to AI so I can work with cat images all day

1 month ago 2 0 0 0
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Best talk of the day, super unbiased of course. #CatLady

Vicente Ordรณรฑez from Rice University

1 month ago 1 0 1 0
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Reminds me of parallel tempering. #BayesLife

1 month ago 1 0 1 0
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Day 2 so far โ€” the Canadians are here!

Vincent Mai from LawZero talking about reinforcement learning.

David Fleet from UofT talking to us about computer vision.

1 month ago 0 0 1 0

Ca y est ! Le PDF et le eBook sont disponibles GRATUITEMENT ๐Ÿฅณ๐Ÿ˜ www.quae.com/produit/1988... Editions Quae

1 month ago 23 10 2 0
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Long first day but itโ€™s interesting being at an AI conference, my first!

Talk highlight โ€” Decoding Sperm Whale Communication by Orr Paradise.

And of course the presentation on BRUVs for the hackathon!

1 month ago 2 1 1 0
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My first time at SALA, summit of AI in Latin America. So much AI, so much espaรฑol ๐Ÿ™Œ๐Ÿฝ

Excited to help with the hackathon today with Cesar Peรฑaherrera Palma and Jean Lรณpez from MigraMar www.migramar.org/en/index

1 month ago 3 0 1 0
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Once in a while I take my group out to dinners or lunch. As an appreciation of them and a chance to hang together. Weโ€™ve got ๐Ÿ‡ฒ๐Ÿ‡ฝ๐Ÿ‡ฆ๐Ÿ‡ท๐Ÿ‡ง๐Ÿ‡ท๐Ÿ‡จ๐Ÿ‡ฆ๐Ÿ‡ฒ๐Ÿ‡บ covered!

All Bayesian, except for the postdoc thatโ€™s gone rogue and only does AI for ecological monitoring. ๐ŸŸ

1 month ago 8 0 0 0
Home - ISEC 2027 The International Statistical Ecology Conference (ISEC) is the main international gathering of statistical ecologists. It is an inclusive interdisciplinary conference at the interface between statisti...

Call for abstracts is now open for the next International Statistical Ecology Conference (ISEC) taking place on January 8-15, 2027, in Mรฉrida, Mรฉxico!

Abstract submission form can be accessed through the website: statisticalecology.org

Deadline: May 1, 2026 (anywhere on earth)

๐Ÿฆ‹๐Ÿ‡ฒ๐Ÿ‡ฝ๐Ÿ“‰๐Ÿ‘ฉ๐Ÿฝโ€๐Ÿ’ป

1 month ago 4 4 0 3
Book cover for https://oliviergimenez.github.io/banana-book/

Book cover for https://oliviergimenez.github.io/banana-book/

๐Ÿ“˜ New book out soon !

Iโ€™m excited to share that ๐๐š๐ฒ๐ž๐ฌ๐ข๐š๐ง ๐€๐ง๐š๐ฅ๐ฒ๐ฌ๐ข๐ฌ ๐จ๐Ÿ ๐‚๐š๐ฉ๐ญ๐ฎ๐ซ๐ž-๐‘๐ž๐œ๐š๐ฉ๐ญ๐ฎ๐ซ๐ž ๐ƒ๐š๐ญ๐š ๐ฐ๐ข๐ญ๐ก ๐‡๐ข๐๐๐ž๐ง ๐Œ๐š๐ซ๐ค๐จ๐ฏ ๐Œ๐จ๐๐ž๐ฅ๐ฌ: ๐“๐ก๐ž๐จ๐ซ๐ฒ ๐š๐ง๐ ๐‚๐š๐ฌ๐ž ๐’๐ญ๐ฎ๐๐ข๐ž๐ฌ ๐ข๐ง ๐‘ ๐š๐ง๐ ๐๐ˆ๐Œ๐๐‹๐„ is being published by Chapman & Hall / CRC Press

Hope itโ€™s useful to students, researchers, and practitioners

#StatisticalEcology #NIMBLE

2 months ago 85 26 2 1

Nearly 15 years ago, I discovered @isec-stats-ecol.bsky.social as a first year PhD student and knew it was my dream conference/community.

Havenโ€™t missed one since & now I get to bring it to Mรฉxico. Que padre unir mi comunidad acadรฉmica y mi gente ๐Ÿ‡ฒ๐Ÿ‡ฝ ๐ŸŒŽ

bsky.app/profile/isec...

2 months ago 5 1 0 0
Home - ISEC 2027 The International Statistical Ecology Conference (ISEC) is the main international gathering of statistical ecologists. It is an inclusive interdisciplinary conference at the interface between statisti...

BTW, ISEC 2027 call for abstracts now open: statisticalecology.org

2 months ago 2 0 0 0