# Research

- retractive spacenLab
- StanCon 2023: deadline for proposals extended!Statistical Modeling, Causal Inference, and Social Science
- Who's on April FirstComputational Complexity
- Survey of Relation Theory • 6Inquiry Into Inquiry
- Surgisphere . . . is back!!Statistical Modeling, Causal Inference, and Social Science
- We’re Knot FriendsMath ∩ Programming
- Rivoluzioni matematiche: il Teorema egregium di GaussMaddmaths!
- The ChatGPT ConundrumGödel's Lost Letter and P=NP
- Linkage with two breakthroughs11011110
- ChomGTPTXi'an's Og
- model structure for parameterized spectranLab
- The behavioral economists’ researcher degree of freedomStatistical Modeling, Causal Inference, and Social Science
- Engine coolant temperature symbolJohn D. Cook
- "The Future is a Dead Mall - Decentraland and the Metaverse"West Coast Stat Views (on Observational Epidemiology and more)
- A New TilingGödel's Lost Letter and P=NP
- Groupe de travail IA de France AssureursFreakonometrics
- Number savvy [book review]Xi'an's Og
- Logic engines and product graphs11011110
- Beverly Cleary is winner in third iteration of Greatest Seminar Speaker competitionStatistical Modeling, Causal Inference, and Social Science
- Replacing the “zoo of named tests” by linear modelsStatistical Modeling, Causal Inference, and Social Science
- TCS for all travel grants and speaker nominations (guest post by Elena Grigorescu)Windows On Theory
- Survey of Theme One Program • 5Inquiry Into Inquiry
- Long story behind simple metricsBig Data, Plainly Spoken (aka Numbers Rule Your World)
- Thursday Tweets -- valid until “21 years after the death of the last survivor of the descendants of King Charles III.”West Coast Stat Views (on Observational Epidemiology and more)
- Tasse: il caso della curva di LafferMaddmaths!
- If AI scaling is to be shut down, let it be for a coherent reasonShtetl-Optimized
- Dorm Snack CookbookMegan Hayes-Golding
- même pas peur [not afrAId]Xi'an's Og
- No pushback: So I guess education has given upemergent math
- Alan Turing, The OperaComputational Complexity
- Some nuggets from a week’s worth of commentsStatistical Modeling, Causal Inference, and Social Science
- Messy data crashes into usStatistical Modeling, Causal Inference, and Social Science
- Renaissance garbage – IThe Renaissance Mathematicus
- "Not ____________" candidates are always the product of projection, wishful thinking, and convergent systemsWest Coast Stat Views (on Observational Epidemiology and more)
- If this weren't a family-friendly blog, we could have a lot more fun with this oneWest Coast Stat Views (on Observational Epidemiology and more)
- Privacy implications of hashing dataJohn D. Cook
- Bayesian inference: challenges, perspectives, and prospectsXi'an's Og
- An unexpected democracy sloganShtetl-Optimized
- By how much did observational studies over-estimate Covid vaccine effectivenessBig Data, Plainly Spoken (aka Numbers Rule Your World)
- New Video Podcast: fAQMath3ma
- What is Superposition, Really?Math3ma
- Perfect images of separable metric spacesDan Ma's Topology Blog
- An epidemiologist and a psychologist come down from the ivory tower to lecture us on “concrete values like freedom and equality” . . . What does that even mean?? The challenge of criticizing policies without considering their political and social contexts:Statistical Modeling, Causal Inference, and Social Science
- Survey of Animated Logical Graphs • 5Inquiry Into Inquiry
- Electric carsWest Coast Stat Views (on Observational Epidemiology and more)
- Testing to destructionWest Coast Stat Views (on Observational Epidemiology and more)
- Some ProblemsCombinatorics and more
- Currie Cup Predictions for Round 4Stats Chat
- NRL Predictions for Round 5Stats Chat
- United Rugby Championship Predictions for Week 17Stats Chat
- Top 14 Predictions for Round 22Stats Chat
- Super Rugby Predictions for Week 6Stats Chat
- Rugby Premiership Predictions for Round 22Stats Chat
- Topological sortJohn D. Cook
- Chemistry and Invariant TheoryAzimuth
- brave new worldsXi'an's Og
- Introducing Bocconi’s new M.Sc. in Artificial Intelligencein theory
- Spires of la Sagrada FamíliaThe Universe of Discourse
- “We won’t sell your personal data, but …”John D. Cook
- Multilevel modeling to make better decisions using data from schools: How can we do better?Statistical Modeling, Causal Inference, and Social Science
- “Gradually, then suddenly.” (I thought I'd have more time.)West Coast Stat Views (on Observational Epidemiology and more)
- Critical Times in Israel: Last Night’s DemonstrationsCombinatorics and more
- The Bow-Tie SpaceDan Ma's Topology Blog
- Conoscete il mio nome? Tra matematica e letteraturaMaddmaths!
- Noncommutative Geometry meets Topological Recursion (3)Noncommutative Geometry
- William Wulf, 1939–2023Gödel's Lost Letter and P=NP
- partenza per Venezia²³Xi'an's Og
- The SIGACT Book Review column list of books it wants reviewedComputational Complexity
- Connecting the dots differentlyJohn D. Cook
- Someone has a plea to teach real-world math and statistics instead of “derivatives, quadratic equations, and the interior angles of rhombuses”Statistical Modeling, Causal Inference, and Social Science
- Un vecchio problema di Erdős – Una nuova maggiorazione nella Teoria di RamseyMaddmaths!
- The 2022 Turing AwardGödel's Lost Letter and P=NP
- Four ‘Universes’Azimuth
- signed mixtures [X’ed]Xi'an's Og
- An Aperiodic MonotileCombinatorics and more
- It’s the finals! Time to choose the ultimate seminar speaker: Beverly Cleary vs. Laura Ingalls WilderStatistical Modeling, Causal Inference, and Social Science
- George F. SimmonsPeter Cameron's Blog
- Tile wars! The hat vs. South America.Statistical Modeling, Causal Inference, and Social Science
- Online activities 27 March – 2 AprilEuropean Set Theory Society
- La “main de Moscou“ ?Xi'an's Og
- “The hat”: A single shape that can tile the plane aperiodically but not periodically.Statistical Modeling, Causal Inference, and Social Science
- Notes on card games played by aliensThe Universe of Discourse
- More on “I could care less about the twin primes conjecture”Statistical Modeling, Causal Inference, and Social Science
- The NYT is surprisingly comfortable with fascism, but they draw the line at putting ketchup on your steakWest Coast Stat Views (on Observational Epidemiology and more)
- Famous constants and the Gumbel distributionJohn D. Cook
- Xavier Waintal responds (tl;dr Grover is still quadratically faster)Shtetl-Optimized
- The Galactic CenterAzimuth
- 10 potential career options with a degree in statisticsStats and R
- kuva Lapista⁻²³ [jatp]Xi'an's Og
- Addenda to recent articles 202212-202302The Universe of Discourse
- ChatGPT Gets Its “Wolfram Superpowers”!Stephen Wolfram Writings
- Is the Subway Footlong Pass Worth It?emergent math
- A Strange Hiring SeasonComputational Complexity
- Bad stuff going down in biostat-land: Declaring null effect just cos p-value is more than 0.05, assuming proportional hazards where it makes no senseStatistical Modeling, Causal Inference, and Social Science
- Strengthen Markov’s inequality with conditional probabilityJohn D. Cook
- Janan Ganesh points out one upside of a cult of personalityWest Coast Stat Views (on Observational Epidemiology and more)
- Modelli epidemiologici: intervista con Ganna RozhnovaMaddmaths!
- Deciphering QuantaPersiflage
- nominees for Nebula 2022 [reposted]Xi'an's Og
- Azimuth Project NewsThe n-Category Café
- Research is everywhere, even, on rare occasions, in boxes labeled researchStatistical Modeling, Causal Inference, and Social Science
- StanCon 2023: call for proposals is still open!Statistical Modeling, Causal Inference, and Social Science
- Of course Grover’s algorithm offers a quantum advantage!Shtetl-Optimized
- What does it take, or should it take, for an empirical social science study to be convincing?Statistical Modeling, Causal Inference, and Social Science
- The Growth Fetish -- twelve years ago at the blog (SVB edition)West Coast Stat Views (on Observational Epidemiology and more)
- Eureka! Trovato l'”einstein” della tassellazioneMaddmaths!
- Artificial Bullshit!The Renaissance Mathematicus
- Problems Better Than SolutionsGödel's Lost Letter and P=NP
- The Vela PulsarAzimuth
- There’s a woset in my repositJohn D. Cook
- Laura Ingalls Wilder vs. Maurice Sendak; Cleary advancesStatistical Modeling, Causal Inference, and Social Science
- ChatGPT on the namesake of the metric space and women named JamesThe Universe of Discourse
- They did a graphical permutation test to see if students could reliably distinguish the observed data from permuted replications. Now the question is, how do we interpret the results?Statistical Modeling, Causal Inference, and Social Science
- Godzilla vs. RodanWest Coast Stat Views (on Observational Epidemiology and more)
- Bourbaki Seminars 31 March and 1 AprilEuropean Set Theory Society
- Archimede 1/2023: Mathematical BeautyMaddmaths!
- Super Rugby Predictions for Week 5Stats Chat
- NRL Predictions for Round 4Stats Chat
- Borel classification of conjugacy problemsSamuel Coskey
- Fortnightly links (167)Pieter Belmans
- Annoying Message with R GA PackageOR in an OB World
- A renewed call to the international mathematical community for the support of Azat Miftakhov, who is facing a likely new criminal prosecution of fabricated chargesMathematics under the Microscope
- Mathematicians wish Azat a Happy BirthdayMathematics under the Microscope
- Compass directions in CatalanThe Universe of Discourse
- Parallelization for Markov chain Monte Carlo with heterogeneous runtimes: a case-study on ODE-based modelsStatistical Modeling, Causal Inference, and Social Science
- Horrocks Bollocks!The Renaissance Mathematicus
- “On March 14th at 7pm ET, thought leader and Harvard professor Steven Pinker will release digital collectibles of his famous idea that ‘Free speech is fundamental.'”Statistical Modeling, Causal Inference, and Social Science
- Solid angle of a starJohn D. Cook
- Revisiting the cutting edge world of TeslaWest Coast Stat Views (on Observational Epidemiology and more)
- Scorpius X-1Azimuth
- New Upper Bound on R(k). WOW!Computational Complexity
- Here I am at the Sagrada FamíliaThe Universe of Discourse
- Modélisation par apprentissage machine sous contrainte d’équitéFreakonometrics
- Thinking about statistical modeling, overfitting, and generalization errorStatistical Modeling, Causal Inference, and Social Science
- Ricerca didattica in pratica al CARME di Pistoia, 19 e 20 maggioMaddmaths!
- It’s the semifinals! Shakira vs. Beverly Cleary; Sendak advancesStatistical Modeling, Causal Inference, and Social Science
- IsarMathLib 1.27.0: Spectrum of a quotient ring, Finite State MachinesFormalized Mathematics
- Hierarchical stacking in Pyro and PyMCStatistical Modeling, Causal Inference, and Social Science
- Le opportunità di riflessione didattica offerte da chatGPTMaddmaths!
- Céad Míle GPTGödel's Lost Letter and P=NP
- X-Ray ChimneysAzimuth
- Jeffrey MortonThe n-Category Café
- ChatGPT Reread Kierkegaard but still makes up citesNew APPS: Art, Politics, Philosophy, Science
- On overexcitable childrenShtetl-Optimized
- Fixed points of the Fourier transformJohn D. Cook
- Hyperbolic secant distributionJohn D. Cook
- “Behavioural science is unlikely to change the world without a heterogeneity revolution”Statistical Modeling, Causal Inference, and Social Science
- Charging for a feature, then charging more to remove that feature... Where have I heard that before?West Coast Stat Views (on Observational Epidemiology and more)
- New web addressPeter Cameron's Blog
- Experiences writing an ActivityPub server in Python with DjangoCheck my working
- Some properties of constant width shapes in the planeBeni Bogoşel's blog
- Identities in Computational ComplexityComputational Complexity
- collaborating on academic research: a discussion with PhD studentsPunk Rock Operations Research
- Two-letter abbreviationsJohn D. Cook
- Some News from a Seminar in CambridgeCombinatorics and more
- Maurice Sendak vs. Li Wenwen; Wilder advancesStatistical Modeling, Causal Inference, and Social Science
- Online activities 20-26 MarchEuropean Set Theory Society
- Ptolemy the paganThe Renaissance Mathematicus
- Problems with a CDC report: Challenges of comparing estimates from different surveys. Also a problem with rounding error.Statistical Modeling, Causal Inference, and Social Science
- Thursday Tweets -- "Residents hope the next sister city comes with a Google search"West Coast Stat Views (on Observational Epidemiology and more)
- Modeling Sequences with Quantum StatesMath3ma
- Understanding Entanglement With SVDMath3ma
- What is Quantum Technology?Math3ma
- Will AIs Take All Our Jobs and End Human History—or Not? Well, It’s Complicated…Stephen Wolfram Writings
- Interpolating rotations with SLERPJohn D. Cook
- The Fermi BubblesAzimuth
- Linkage for the day after π day11011110
- Predicting LLM havocStatistical Modeling, Causal Inference, and Social Science
- Don’t trust people selling their methods: The importance of external validation. (Sepsis edition)Statistical Modeling, Causal Inference, and Social Science
- "Everything you need to know about the wild world of heat pumps" is nowhere near everything you need to know about heat pumpsWest Coast Stat Views (on Observational Epidemiology and more)
- Alison Bechdel vs. Laura Ingalls Wilder; Cleary advancesStatistical Modeling, Causal Inference, and Social Science
- Renaissance Science – LIIThe Renaissance Mathematicus
- Présentation au Comité Scientifique d’AIvidenceFreakonometrics
- Symposium at The Master's UniversityMath3ma
- Quand on marche sur des œufs avec Chat-GPTFreakonometrics
- Fields Institute Lectures by Stevo Todorcevic, March 15-17European Set Theory Society
- How to add scaffolding when making a graph that’s hard to follow?Statistical Modeling, Causal Inference, and Social Science
- Blogs > Twitter, part the umpteenthStatistical Modeling, Causal Inference, and Social Science
- Housing starts and neighborhood characterWest Coast Stat Views (on Observational Epidemiology and more)
- Matematica per tutte le personeMaddmaths!
- Algebraic Values of Transcendental Functions at Algebraic PointsMatt Baker's Math Blog
- Is Pi Informative?Gödel's Lost Letter and P=NP
- Runaway Supermassive Black HoleAzimuth
- Shuffle productJohn D. Cook
- NRL Predictions for Round 3Stats Chat
- Super Rugby Predictions for Week 4Stats Chat
- What Is Iterative Refinement?Nick Higham
- Prime numbers and Taylor’s lawJohn D. Cook
- Problems we assume are hard. Are they? ALSO- revised version of Demaine-Gasarch-Hajiaghayi is posted!Computational Complexity
- This ONE WEIRD TRICK for primality testing… doesn't workThe Universe of Discourse
- Birthday conferencesPeter Cameron's Blog
- Is there a Bayesian justification for the Murdaugh verdict?Statistical Modeling, Causal Inference, and Social Science
- Your Silicon Valley Bank PrimerWest Coast Stat Views (on Observational Epidemiology and more)
- Identical twins and quantum entanglementQuantum Frontiers
- The coupon collector problem and πJohn D. Cook
- Applications of Helly’s theoremBeni Bogoşel's blog
- Our Bayesian predictions for the Oscars . . . using Stan!Statistical Modeling, Causal Inference, and Social Science
- Postdoc à CracovieJérôme Buzzi’s
- Should drug companies be required to release data right away, not holding data secret until after regulatory approval?Statistical Modeling, Causal Inference, and Social Science
- Beverly Cleary (2) vs. Leona Helmsley; Shakira advancesStatistical Modeling, Causal Inference, and Social Science
- Competitive programming in Haskell challenge: Letter Optimizationblog :: Brent -> [String]
- Adding stars to constellationsJohn D. Cook
- Tidyverse examples for Regression and Other StoriesStatistical Modeling, Causal Inference, and Social Science
- Online activities 13 – 19 MarchEuropean Set Theory Society
- Helly’s TheoremBeni Bogoşel's blog
- Round 4 has arrived! Shakira vs. Roald Dahl; Li advancesStatistical Modeling, Causal Inference, and Social Science
- A Host–Kra F^omega_2-system of order 5 that is not Abramov of order 5, and non-measurability of the inverse theorem for the U^6(F^n_2) norm; The structure of totally disconnected Host–Kra–Ziegler factors, and the inverse theorem for the U^k Gowers uniformity norms on finite abelian groups of bounded torsionWhat's new
- A Host–Kra F^omega_2-system of order 5 that is not Abramov of order 5, and non-measurability of the inverse theorem for the U^6(F^n_2) norm; The structure of totally disconnected Host–Kra–Ziegler factors, and the inverse theorem for the U^k Gowers uniformity norms on finite abelian groups of bounded torsionWhat's new
- Plotting constellationsJohn D. Cook
- Count the living or the dead?Statistical Modeling, Causal Inference, and Social Science
- Deferred Thursday Tweets -- Dems in Disarray and other favoritesWest Coast Stat Views (on Observational Epidemiology and more)
- Subspace Designs, Unit and Distinct Distances, and Piercing Standard Boxes.Combinatorics and more
- Maxims and tactics for dealing with assholes on the Internet (and elsewhere)The Universe of Discourse
- Where Are Fisher, Neyman, Pearson in 1919? Excursion 3 Tour IError Statistics Philosophy
- Azimuth Project NewsAzimuth
- Semaine parisienneFreakonometrics
- Alien astronomers and Benford’s lawJohn D. Cook
- “The butterfly and the piranha: Understanding the generalizability and reproducibility crisis from statistical and political perspectives” (my talk at the University of Minnesota political science department on Monday)Statistical Modeling, Causal Inference, and Social Science
- Mathematics for Humanity initiative – application deadline extended to June 1What's new
- Mathematics for Humanity initiative – application deadline extended to June 1What's new
- Between transitive and primitivePeter Cameron's Blog
- We need to talk about tests (in the "I got an A" sense, not the RCT sense)West Coast Stat Views (on Observational Epidemiology and more)
- The False Promise of ChomskyismShtetl-Optimized
- Cloning in Classical MechanicsThe n-Category Café
- Isaac Newton vs. Li Wenwen; Sendak advancesStatistical Modeling, Causal Inference, and Social Science
- More mathematics books by women11011110
- Haemoglobin bloggingStatistical Modeling, Causal Inference, and Social Science
- Interview about this blog in the Bulletin of the EATCSWindows On Theory
- Seems like a good time to revisit IBM's war on cancerWest Coast Stat Views (on Observational Epidemiology and more)
- A masterclass in wide-ranging narrative historyThe Renaissance Mathematicus
- Dutton’s Navigation and PilotingJohn D. Cook
- Another GA for ClusteringOR in an OB World
- Maurice Sendak vs. Margaret Wise Brown; Wilder advancesStatistical Modeling, Causal Inference, and Social Science
- Greg Kuperberg @ Tel Aviv UniversityCombinatorics and more
- This Week's Finds (101--150)The n-Category Café
- Technological change is not additive; it is ecologicalPunk Rock Operations Research
- The NBA and MLB trees are isomorphicJohn D. Cook
- Significance testing, the replication crisis, and the market for lemonsStatistical Modeling, Causal Inference, and Social Science
- Optimal Transport for Counterfactual Estimation: A Method for Causal InferenceFreakonometrics
- An interesting piece of housing historyWest Coast Stat Views (on Observational Epidemiology and more)
- STACS 2023Gödel's Lost Letter and P=NP
- Dividing a Square into 7 Similar RectanglesAzimuth
- Why am I not terrified of AI?Shtetl-Optimized
- Philosophical Perspectives on Category TheoryThe n-Category Café
- Bayes del Sur conference in ArgentinaStatistical Modeling, Causal Inference, and Social Science
- Who's the richest person in the world right now?Big Data, Plainly Spoken (aka Numbers Rule Your World)
- Numbering minor league baseball teamsJohn D. Cook
- “A complete, current, and granular picture of COVID-19 epidemic in the United States”Statistical Modeling, Causal Inference, and Social Science
- Peer ReviewComputational Complexity
- A human knight/knave puzzleWest Coast Stat Views (on Observational Epidemiology and more)
- An Invitation to Geometric Higher CategoriesThe n-Category Café
- Another mathematician visits the ballpark – OPSYet Another Mathblog
- Memories of things pastQuantum Frontiers
- Malcom X vs. Laura Ingalls Wilder; Bechdel advancesStatistical Modeling, Causal Inference, and Social Science
- New Perspectives in Pure Mathematics, Bristol 27-29 MarchEuropean Set Theory Society
- Reconciling evaluations of the Millennium Villages ProjectStatistical Modeling, Causal Inference, and Social Science
- MontréalFreakonometrics
- Poetry is everywhere, even in boxes labeled “Poetry.”Statistical Modeling, Causal Inference, and Social Science
- Differential Logic and Dynamic Systems • OverviewInquiry Into Inquiry
- Israel AGT Day, Reichman University, March 5, 2023Combinatorics and more
- Updated once moreStacks Project Blog
- Special Relativity and the Mercator ProjectionThe n-Category Café
- Ruling Out Short Proofs of Unprovable Sentences is HardSpeedup in Computational Complexity
- Online activities 6 – 12 MarchEuropean Set Theory Society
- Law and orderWest Coast Stat Views (on Observational Epidemiology and more)
- John Conway’s mental factoring method and friendsJohn D. Cook
- Major League Baseball and number theoryJohn D. Cook
- A mathematical look at the NFLJohn D. Cook
- Renaissance Science – LIThe Renaissance Mathematicus
- Goodbye DilbertComputational Complexity
- Thursday Tweets -- You can take the boy out of South Africa...West Coast Stat Views (on Observational Epidemiology and more)
- Vanishing sums of roots of unityThe Accidental Mathematician
- Non-crossing Hamiltonian paths and cycles in output-polynomial time11011110
- Practical issues in observational studiesBig Data, Plainly Spoken (aka Numbers Rule Your World)