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Tong Chen

@cttc101.bsky.social
72 followers 95 following 8 posts

Statistician @CEBU MCRI in Melbourne Australia Causal inference #causalsky + Causal machine learning + Design and analysis of complex sampling + #rstats tongchen.netlify.app

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Reposted by Tong Chen
ViCBiostat @vicbiostat.bsky.social · 23/09/2026
Seminar announcement Dianne (Di) Cook: Practical Tools for Data Exploration in Biostatistics 15 October, 4-5pm AEST via Zoom Further details: www.vicbiostat.org.au/event/practi... @visnut.bsky.social
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Frank Harrell @f2harrell.bsky.social · 17/06/2026
Today we celebrate the awarding of the prestigious Rousseeuw prize to the R Core team in recognition of their 30 years of dedicated work on R and in recognition of the massive impact of R on the scientific community rousseeuwprize.org/2026 #RStats
rousseeuwprize.org
The Rousseeuw Prize for Statistics
The Rousseeuw Prize for Statistics is a biennial prize to celebrate outstanding contributions to statistics research.
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The R Foundation @r-foundation.bsky.social · 17/06/2026
The 2026 Rousseeuw Prize for Statistics has been awarded to the R Project. #RStats www.rousseeuwprize.org/2026
rousseeuwprize.org
The Rousseeuw Prize for Statistics
The Rousseeuw Prize for Statistics is a biennial prize to celebrate outstanding contributions to statistics research.
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Peter Dalgaard @pdalgd.bsky.social · 24/04/2026
R version 4.6.0 "Because it was There" (source version) has been released. It should be on CRAN by now. #rstats The choice of codename is in remembrance of R Core member Tomàš Kalibera (1978-2026). Among many other things, he was a keen mountain climber.
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Myra McGuinness @myramcguinness.bsky.social · 19/02/2026
All are welcome to the March @vicbiostat.bsky.social seminar. Lee Kennedy-Shaffer from @yalesph.bsky.social will be presenting " #Estimands, Assumptions, and the Challenges of Evaluating Policies: Lessons from Staggered Adoption" 12 March, 9:30 AEDT online. www.vicbiostat.org.au #steppedwedge
vicbiostat.org.au
Estimands, Assumptions, and the Challenges of Evaluating Policies: Lessons from Staggered Adoption
Abstract:Evaluating the impact of policies an
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Kylie Ainslie, PhD @kylieainslie.bsky.social · 27/01/2026
I’ve been thinking about how to find R packages by functionality when you don’t already know the package name. So over the holidays, Claude Code and I built The Warehouse: a functionality-first R package directory that helps you find packages by what they do. rwarehouse.netlify.app #rstats
rwarehouse.netlify.app
The Warehouse
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Thomas Lumley @tslumley.bsky.social · 26/01/2026
Do predictive models need to be causal? notstatschat.rbind.io/2026/01/26/d...
notstatschat.rbind.io
Do predictive models need to be causal? - Biased and Inefficient
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Thomas Lumley @tslumley.bsky.social · 06/01/2026
#rstats blogdown/netlify users: you might have received an email saying your site will go away because something something prerendering. If you go to the check link in the *comments* of the linked page (not the one in the text) it will likely tell you there's no problem because your site is static🎉
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Paul Goldsmith-Pinkham @paulgp.com · 06/01/2026
Please feel free to follow this bot along with @paperposterbot.bsky.social for the full range of economics paper on Arxiv.org
arxiv.org
arXiv.org e-Print archive
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Jonathan Bartlett @jonathan-bartlett.bsky.social · 06/01/2026
@lshtm.bsky.social will be running a 3-day online short course on using multiple imputation to handle missing data on 23-25th June 2026. Teaching staff include James Carpenter, Ruth Keogh, Clémence Leyrat, and myself. Further details about the course at www.lshtm.ac.uk/study/course...
lshtm.ac.uk
Statistical Analysis with Missing Data Using Multiple Imputation | LSHTM
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Margarita Moreno-Betancur @margaritamb.bsky.social · 06/01/2026
Start the year well by registering for the ViCBiostat Summer School 😊 👉 www.trybooking.com/events/landi...
trybooking.com
ViCBiostat Summer School 2026
Welcome to the registration page for the 2026 Summer School courses. Full course descriptions can be found on our website:...
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Emi Tanaka @emitanaka.org · 19/12/2025
Have you got a PhD in Statistics (or related field) and experience in Statistical Consulting? A continuing position at the Australian National University is now open 🇦🇺🦘🐨. Would love to get an #rstats person if possible ☺️ Apply by 18 Jan 👉 jobs.anu.edu.au/jobs/course-... #statssky #statsky
jobs.anu.edu.au
Course Coordinator - Canberra / ACT, ACT, Australia
Classification: Academic Level BSalary package: $121,598 – 137,870 per annum plus 17% superannuation Terms: Full-time, Continuing (flexible arrangements, job share, or part time hours will be consider...
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Tong Chen @cttc101.bsky.social · 17/12/2025
#StatsSky #datascience
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Rushani Wijesuriya @rush-099.bsky.social · 04/12/2025
Incredibly honoured to receive the Rising Star Award at MCRI Staff Awards ✨ Thank you to my mentors, especially @margaritamb.bsky.social for championing the nomination, and to colleagues and collaborators @mcri.bsky.social who nominated me. Grateful to be part of such a supportive community 💛
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Margarita Moreno-Betancur @margaritamb.bsky.social · 04/12/2025
Registrations now open for the ViCBiostat Summer School - Feb 13-20, 2026 (Melbourne/online)! Features courses by local & international experts in causal inference, estimands, meta-analysis and cluster RCTs Info: www.vicbiostat.org.au/short-courses Register: www.trybooking.com/events/landi...
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Thomas Lumley @tslumley.bsky.social · 01/12/2025
For the avoidance of doubt: does svyglm() use robust standard errors? Yes! notstatschat.rbind.io/2025/12/01/d...
notstatschat.rbind.io
Does svyglm use robust standard errors? - Biased and Inefficient
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Myra McGuinness @myramcguinness.bsky.social · 16/11/2025
This week! Prof Ian Marschner from the NHMRC Clinical Trials Centre will be presenting the @vicbiostat.bsky.social seminar on Confidence distributions. All welcome online or in person. Friday 21 November 9:30am AEDT, Monash SPHPM. www.vicbiostat.org.au/event/confid...
vicbiostat.org.au
Confidence distributions: new tools to design, adapt and analyse clinical trials
Confidence distributions provide a holistic s
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Thomas Lumley @tslumley.bsky.social · 14/11/2025
Double machine learning fits an adjustment model from a confounder set using correlation and so breaks down when offered variables that have good correlation just *because* they aren't suitable adjustment variables #IWouldSimplyNotIncludeEndogenousVariables
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Journal of Survey Statistics and Methodology @jssam.bsky.social · 12/11/2025
@bsky.app ISSUE 4 IS OUT! with 3 survey methods and 2 statistics articles. We've got a backlog of 20 accepted articles -- some in preprint now -- but we're seeking more manuscripts for 2026, especially stat papers. So please consider submitting your next manuscript to JSSAM. #AAPOR
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Myra McGuinness @myramcguinness.bsky.social · 12/11/2025
#ViCBiostat Summer School 13-20 Feb 2026 #Causal inference #Estimands in trials #Cluster randomised trials Advanced #meta-analysis In Melbs and online. More details to come. www.vicbiostat.org.au
Flyer saying Save the date for the 2025 ViCBiostat Summer School
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jesskasza.bsky.social @jesskasza.bsky.social · 12/11/2025
Another great ViCBiostat summer school to look forward to! I can promise a couple of excellent days on cluster randomised trials from the Cluster Cluster... with a couple of extra special guests soon to be announced!
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Melissa Middleton @melmiddleton.bsky.social · 09/11/2025
☕🥐 One week to go! Don’t miss the Australian Trials Methodology Conference on 20 Nov — your dose of fresh ideas in clinical trial design! Come early for the Career Development Breakfast to start your day right with coffee, croissants & career chat! 👉 Full program: bit.ly/4qM3HKp
bit.ly
#atmc25
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Clinical Epi & Biostatistics Unit (CEBU) @cebu-melbourne.bsky.social · 28/08/2025
Strengthen your research skills in observational studies! 📅 27–31 Oct 2025 | 💻 Online via Zoom Reduced rates available for selected participants- more details and registration👇 🔗 www.mcri.edu.au/research/res...
mcri.edu.au
Observational Studies: Modern concepts & analytic methods - Murdoch Children's Research Institute
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Thomas Lumley @tslumley.bsky.social · 21/10/2025
Statisticians of Melbourne and environs! I will be giving a talk (the Belz Lecture) next Monday, 2pm, Melbourne Uni. The title is "Laws and Orders" The lecture is free but they want you to sign up. There's also an early career stats showcase with lunch that costs www.statsoc.org.au/event-6288035
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Tong Chen @cttc101.bsky.social · 20/10/2025
This week! Don’t miss Prof Eric Tchetgen Tchetgen’s @vicbiostat.bsky.social seminar on proximal causal inference!
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Myra McGuinness @myramcguinness.bsky.social · 08/10/2025
Join the October @vicbiostat.bsky.social seminar to hear Prof Eric Tchetgen Tchetgen speak on proximal causal inference. All welcome online 23 October. More info: www.vicbiostat.org.au/event/fortif... #casualinference #biostatistics @upenncgh.bsky.social
vicbiostat.org.au
Fortified Proximal Causal Inference with many imperfect negative controls
Abstract: Causal inference from observational
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Margarita Moreno-Betancur @margaritamb.bsky.social · 25/09/2025
NEW PAPER!!! "Causal Machine Learning Methods and Use of Cross‐Fitting in Settings With High‐Dimensional Confounding" led by Susie Ellul, with Stijn Vansteelandt & John Carlin Published in Stats in Med Check it out 👇 onlinelibrary.wiley.com/doi/10.1002/... #EpiSky #CausalSky
onlinelibrary.wiley.com
Causal Machine Learning Methods and Use of Cross‐Fitting in Settings With High‐Dimensional Confounding
Observational epidemiological studies commonly seek to estimate the causal effect of an exposure on an outcome. Adjustment for potential confounding bias in modern studies is challenging due to the p...
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AusTriM CRE @austrim-cre.bsky.social · 15/09/2025
Join us at the 3rd biennial Australian Trials Methodology Conference as we explore "Better trials through better methods" Crown Promenade, Melbourne (+ online access options) 20/11/25 Early-bird registration ends 26/9 www.atmc25.com #ClinicalTrials #Biostatistics
AusTriM Conference flyer
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Margarita Moreno-Betancur @margaritamb.bsky.social · 10/09/2025
NEW PAPER! (in press in EPIDEMIOLOGY) Have you wondered: - How to specify a target trial: as an ideal trial or something else? - What biases do target trial emulations and actual RCTs share? - How does it all relate to potential outcomes? Read here! 👉 arxiv.org/abs/2405.10026 #EpiSky #CausalSky
arxiv.org
The ideal trial: defining causal estimands that balance relevance and feasibility in target trial emulations and actual randomized trials
Causal inference is the goal of randomized trials and many observational studies. The first step in a formal causal inference framework is to define the causal estimand, and in both types of study thi...
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Myra McGuinness @myramcguinness.bsky.social · 23/07/2025
We are looking forward to hearing @jonathan-bartlett.bsky.social speak on the G-formula for causal inference using synthetic multiple imputation at the July @vicbiostat.bsky.social seminar! All welcome online Thursday 24th, 4:00pm Aus EST (7:00am UK time). www.vicbiostat.org.au/event/g-form...
vicbiostat.org.au
G-formula for causal inference using synthetic multiple imputation
G-formula is a popular approach for estimatin
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James Curran @profjamescurran.bsky.social · 19/07/2025
For those of you who don't know what Ross and Robert look like..a couple of photos from my collection. I'm sure I have better ones somewhere. The BW is from 1994 when our department formally became separate from Mathematics.
Ross Ihaka - Coinventor of RRoss Ihaka and Robert Gentleman circa 1994
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samuel mehr @mehr.nz · 14/12/2023
it's wild that R, the ubiquitous statistical computing language, was co-created by a Māori prof (Ross Ihaka) — and yet the vast majority of scientists who use R don't know this is like inventing the toaster. possibly the largest impact of a single member of an indigenous community on modern science
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Margarita Moreno-Betancur @margaritamb.bsky.social · 10/07/2025
1/ NEW R PACKAGE! For estimating the impact of potential interventions on multiple mediators in countering exposure effects (led by @cttc101.bsky.social) - Paper👉 tinyurl.com/ye26jsps - Package👉 tinyurl.com/yuh4kens Thread shows published examples of how the method can be used! #EpiSky #CausalSky
tinyurl.com
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arxiv.stat.ME @arxiv-stat-me.bsky.social · 10/06/2025
Zhehao Zhang, Thomas S. Richardson Individual Treatment Effect: Prediction Intervals and Sharp Bounds arxiv.org/abs/2506.07469
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Margarita Moreno-Betancur @margaritamb.bsky.social · 02/07/2025
NOW PUBLISHED! Featured article + 6 Commentaries + Rejoinder: “On the Uses and Abuses of Regression Models: A Call for Reform of Statistical Practice and Teaching” with my colleague John Carlin tinyurl.com/2z2tmkhh @cebu-melbourne.bsky.social @vicbiostat.bsky.social #EpiSky #CausalSky #StatsSky
onlinelibrary.wiley.com
Rejoinder to Commentaries on: On the Uses and Abuses of Regression Models: A Call for Reform of Statistical Practice and Teaching
Click on the article title to read more.
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Triad sou. @triadsou.bsky.social · 29/06/2025
How hazard ratios can mislead and why it matters in practice. Elise Dumas, Mats J. Stensrud. European Journal of Epidemiology. link.springer.com/article/10.1...
link.springer.com
How hazard ratios can mislead and why it matters in practice - European Journal of Epidemiology
Hazard ratios are routinely reported as effect measures in clinical trials and observational studies. However, many methodological works have raised concerns about the interpretation of hazard ratios ...
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USA TODAY @usatoday.com · 26/06/2025
Yang Hansen may not have been on the radar for some, but his tall frame quickly caught the eye of many as he made his way toward the NBA draft stage.
bit.ly
Who is Yang Hansen? Meet 2025 NBA Draft pick heading to Portland Trail Blazers
Yang Hansen may not have been on the radar for some, but his tall frame quickly caught the eye of many as he made his way toward the NBA draft stage.
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Maëlle Salmon @masalmon.eu · 19/06/2025
Quack quack! "duckplyr fully joins the tidyverse!" Like a duck to water 😉 www.tidyverse.org/blog/2025/06... #RStats
tidyverse.org
duckplyr fully joins the tidyverse!
duckplyr 1.1.0 is on CRAN! A drop-in replacement for dplyr, powered by DuckDB for speed. It is the most dplyr-like of dplyr backends.
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Thomas Lumley @tslumley.bsky.social · 19/06/2025
I'm giving a midnight seminar for IASS next Wednesday night isi-iass.org/home/events/... From their point of view it's just nicely after lunch: 2pm in CEST
isi-iass.org
IASS Webinar 53: Multiphase sampling: design, analysis, computation | International Association of Survey Statisticians (IASS)
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Thomas Lumley @tslumley.bsky.social · 12/06/2025
I'm giving two short courses at the (online) Summer Institute run by the Biostat dept in Seattle As usual, on complex surveys and R: si.biostat.washington.edu/institutes/s... New! with Pam Shaw, on two-phase designs in health research si.biostat.washington.edu/institutes/s...
si.biostat.washington.edu
Analyzing Data from Complex Surveys | Summer Institutes
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Mickaël CANOUIL, Ph.D. @mickael.canouil.fr · 19/05/2025
Streamline your workshops with GitHub Codespaces & Quarto (@posit.co) ! Skip setup headaches and dive into live, interactive sessions that make teaching a breeze. Discover how in our latest guide. quarto.org/docs/blog/po... #GitHubCodespaces #Quarto #Python #JuliaLang #RStats #Workshop
quarto.org
How to use GitHub Codespaces to simplify your Quarto workshops – Quarto
In this post, I’ll teach you the basics of GitHub Codespaces and how to use them to make it easier to teach using Quarto.
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apoorva lal @apoorvalal.com · 19/05/2025
I had a hard time believing it was as simple as this until Lars taught me how to implement it - calibrate=True and you're done github.com/apoorvalal/a...
github.com
GitHub - apoorvalal/aipyw: minimal, fast, object-oriented implementation of the AIPW and related estimators for many discrete treatments. Implemented with scikitlearners and cross-fitting.
minimal, fast, object-oriented implementation of the AIPW and related estimators for many discrete treatments. Implemented with scikitlearners and cross-fitting. - GitHub - apoorvalal/aipyw: minim...
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Thomas Lumley @tslumley.bsky.social · 13/05/2025
Young people wonder how biostat and econometrics ended up with parallel, non-intersecting literature on so many topics. Imagine if the library copies of, say, Econometrica and Biometrika were only accessible in different buildings, potentially on different campuses
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useR! - The R User Conference @user-conf.bsky.social · 07/05/2025
We are grateful to have Simon Urbanek as a keynote speaker for useR! 2025. He is a member of the R core team, working on the maintenance of R for MacOS, creating binaries. He is an Associate Professor at The University of Auckland Department of Statistics. Register: user2024.r-project.org #RStats
Headshot of Simon Urbanek, keynote speaker for useR! 2025 along with details on his talk.
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Ghazaleh Dashti @ghazalehd.bsky.social · 02/05/2025
📢 New Commentary: We discuss how analytic choices impact interpretation of studies on socioeconomic health inequities. We review 1) descriptive analogues of causal estimands (à la Young et al) with competing events; 2) timescale choice; and 3) covariate adjustment. 👉 academic.oup.com/aje/advance-...
academic.oup.com
Invited commentary: Descriptive social epidemiology: putting the question before the methods
Abstract. In studies describing socioeconomic inequities in health outcomes, the choice of estimand and the planned analytic approach are central to the in
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Tong Chen @cttc101.bsky.social · 24/04/2025
Thrilled to share our new preprint on causal ML for mediation analysis! We introduce causal ML estimators for interventional effects explicitly mapped to target trials assessing hypothetical interventions inducing distinct shifts in joint mediator distributions📊 📈🧪 #CausalSky #EpiSky
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Clinical Epi & Biostatistics Unit (CEBU) @cebu-melbourne.bsky.social · 24/04/2025
📊 Observational Studies: Modern Concepts & Analytic Methods ✍️This course provides a comprehensive introduction to key concepts for observational studies in clinical and health research 📅 Next online iteration: 19–23 May from 9 AM-1PM each day 🔗https://shorturl.at/CYDUB
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Margarita Moreno-Betancur @margaritamb.bsky.social · 23/04/2025
Recording of my talk @causalab.bsky.social on using m-DAGs to guide the treatment of missing data now available 👇 #EpiSky #CausalSky
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Sam Power @spmontecarlo.bsky.social · 22/04/2025
Enjoying reading a bit about "Double Machine Learning" methods for semiparametric inference (particularly impressive once you account for the state that I don't currently have a direct interest in the usual applications). Very cool stuff.
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Noah Greifer @noahgreifer.bsky.social · 16/04/2025
Really nice new paper by Jingyu Zhang, Oliver Lüdtke, and Alexander Robitzsch on the performance of doubly robust estimators of the ATE. A great example of clear writing and reporting, useful visualization through tables, and a review of modern literature. osf.io/5uj2f_v2
osf.io
OSF
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