#statstab #538 A Tutorial on Conducting and Interpreting a Bayesian Independent T-Test Using Open-Source Software

Thoughts: OK as a beginner guide, but not more.

#bayesian #bayesfactor #priors #jasp #ttest #tutorial #guide

https://onlinelibrary.wiley.com/doi/epdf/10.1111/jan.70122

#statstab #537 {hdbayes} An R Package for Bayesian Analysis of Generalized Linear Models Using Historical Data

Thoughts: An interesting approach to priors. I'm not v familiar w this so curious what others think.

#bayes #bayesian #priors #historicaldata

https://arxiv.org/html/2506.20060v1

hdbayes: An R Package for Bayesian Analysis of Generalized Linear Models Using Historical Data

#statstab #532 Fractional Bayes Factors for Model Comparison Free - O'Hagan (1995)

Thoughts: Use a fraction of the data to convert an improper prior into a minimally informative prior.

#bayesian #bayesfactor #priors #bain #hypothesis #testing

https://doi.org/10.1111/j.2517-6161.1995.tb02017.x

The joke is really on the non #Bayesian statisticians: some of the best tools for their trade (magic formula, h-likelihood, REML, bootstrap, g-formulas) are really approximate Bayesian calculations or posterior predictive distributions. How can they even live with this massive cognitive dissonance?

#statstab #529 How Do I Know What My Theory Predicts?

Thoughts: I'd like to see more researchers adopt Dienes' framework and way of thinking about research.

#bayesian #bayesfactor #evidence #epistemology #research #tutorial

https://journals.sagepub.com/doi/10.1177/2515245919876960

Marginal likelihood is exhaustive leave-p-out cross-validation

이 글은 둜그 μ£Όλ³€μš°λ„(log marginal likelihood, LML)κ°€ λͺ¨λ“  κ°€λŠ₯ν•œ ν•™μŠ΅-검증 뢄할에 λŒ€ν•œ 평균을 μ·¨ν•œ μ™„μ „ν•œ leave-p-out ꡐ차검증과 λ™μΌν•˜λ‹€λŠ” 점을 μˆ˜ν•™μ μœΌλ‘œ 증λͺ…ν•œλ‹€. LML은 λ² μ΄μ§€μ•ˆ λͺ¨λΈ μ„ νƒμ—μ„œ μ€‘μš”ν•œ 역할을 ν•˜μ§€λ§Œ, μΌλ°˜ν™” μ„±λŠ₯을 μ™„λ²½νžˆ λŒ€λ³€ν•˜μ§€λŠ” λͺ»ν•˜λ©°, 특히 적은 데이터에 쑰건뢀인 κ²½μš°κ°€ λ§Žμ•„ ν•œκ³„κ°€ μžˆλ‹€. λ‹€λ§Œ, κ°€μš°μ‹œμ•ˆ ν”„λ‘œμ„ΈμŠ€ 같은 νŠΉμ • λͺ¨λΈμ—μ„œλŠ” LML을 효율적으둜 계산할 수 μžˆμ–΄ μ‹€μš©μ μ΄λ‹€. 이 μ—°κ΅¬λŠ” λ² μ΄μ§€μ•ˆ λͺ¨λΈ 선택과 전톡적 ꡐ차검증 κ°„μ˜ 연결고리λ₯Ό λͺ…ν™•νžˆ ν•œλ‹€.

https://belko.xyz/posts/lml-and-cross-validation/

#bayesian #marginallikelihood #crossvalidation #modelselection #gaussianprocesses

Marginal likelihood is exhaustive leave-p-out cross-validation

Build MCMC from Scratch in R: The 50-Line Algorithm Behind Brms and Stan

이 글은 R μ–Έμ–΄λ‘œ 50쀄 이내에 MCMC(Markov Chain Monte Carlo) μ•Œκ³ λ¦¬μ¦˜μ„ 직접 κ΅¬ν˜„ν•˜λŠ” 방법을 μ†Œκ°œν•©λ‹ˆλ‹€. brms와 Stan 같은 λ² μ΄μ§€μ•ˆ λͺ¨λΈλ§ 도ꡬ가 λ‚΄λΆ€μ μœΌλ‘œ μ‚¬μš©ν•˜λŠ” MCMC μ•Œκ³ λ¦¬μ¦˜μ˜ μž‘λ™ 원리λ₯Ό μ΄ν•΄ν•˜λŠ” 데 도움을 μ£Όλ©°, 클릭λ₯  μΆ”μ • 문제λ₯Ό 예제둜 μ‚¬μš©ν•΄ μ‹€μ œ μƒ˜ν”Œλ§ κ²°κ³Όκ°€ 이둠적 베타 뢄포와 μΌμΉ˜ν•¨μ„ λ³΄μ—¬μ€λ‹ˆλ‹€. 이λ₯Ό 톡해 AI κ°œλ°œμžλ“€μ΄ λ² μ΄μ§€μ•ˆ μΆ”λ‘ κ³Ό MCMC의 κΈ°λ³Έ κ°œλ…μ„ μ‹€μŠ΅ν•˜λ©° 깊이 있게 이해할 수 μžˆμŠ΅λ‹ˆλ‹€.

https://r-statistics.co/MCMC-in-R.html

#r #mcmc #bayesian #statisticalmodeling #stan

Build MCMC From Scratch in R: The 50-Line Algorithm Behind brms and Stan

Build MCMC in R from scratch with a 50-line Metropolis-Hastings sampler. See exactly what brms and Stan do under the hood, with runnable code and diagnostics.

r-statistics.co

The latest #PyDataVenice event took place last week πŸš€πŸš€πŸš€

πŸŽ“ Two speakers tackling complex systems: climate networks with a #Bayesian approach, and trading with custom #StrategicRule algorithms.

🍺 Small audience, great #networking over a beer.

β™₯️ #ThankYou all for making this event possible !!!

🎦 https://www.youtube.com/watch?v=bFUAZFkgbBE

πŸ’Ύ See you all on Thursday, 18 June 2026. #SaveTheDate πŸ’ͺ

#PyDataVE #26 #Meetup PyData - #ClimateNetworks & #Trading

Blackboard System

λΈ”λž™λ³΄λ“œ μ‹œμŠ€ν…œμ€ λ‹€μ–‘ν•œ μ „λ¬Έ 지식 μ†ŒμŠ€λ“€μ΄ κ³΅ν†΅μ˜ 지식 μ €μž₯μ†ŒμΈ λΈ”λž™λ³΄λ“œλ₯Ό 톡해 ν˜‘λ ₯ν•˜μ—¬ 문제λ₯Ό ν•΄κ²°ν•˜λŠ” AI μ•„ν‚€ν…μ²˜ λͺ¨λΈμž…λ‹ˆλ‹€. 각 지식 μ†ŒμŠ€λŠ” μžμ‹ μ˜ 전문성을 λ°”νƒ•μœΌλ‘œ λΈ”λž™λ³΄λ“œμ— 뢀뢄해결책을 μΆ”κ°€ν•˜λ©°, μ œμ–΄ 셸이 μ΄λ“€μ˜ ν˜‘μ—…μ„ μ‘°μœ¨ν•©λ‹ˆλ‹€. BB1κ³Ό GBB 같은 초기 μ‹œμŠ€ν…œλ“€μ€ 기회주의적 κ³„νšκ³Ό νš¨μœ¨μ„± ν–₯상에 쀑점을 λ‘μ—ˆμœΌλ©°, ν˜„μž¬λŠ” μœ„μ„± κ΄€μ œ, κ²Œμž„ AI, OCR λ“± λ‹€μ–‘ν•œ 뢄야에 적용되고 μžˆμŠ΅λ‹ˆλ‹€. μ΅œκ·Όμ—λŠ” λ² μ΄μ§€μ•ˆ λ„€νŠΈμ›Œν¬μ™€ κ²°ν•©ν•œ λΈ”λž™λ³΄λ“œ μ‹œμŠ€ν…œλ„ μ—°κ΅¬λ˜κ³  μžˆμŠ΅λ‹ˆλ‹€.

https://en.wikipedia.org/wiki/Blackboard_system

#blackboard #aiarchitecture #multiagent #planning #bayesian

Blackboard system - Wikipedia