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Conferences / useR! (The R User Conference)

useR! 2026

Jul 6–9, 2026 · SGH Warsaw School of Economics (tutorials at the Faculty of Mathematics and Information Science, Warsaw University of Technology), Warsaw, Poland

Conference
useR! (The R User Conference) Data science & ML
Dates
Jul 6, 2026 – Jul 9, 2026
Venue
SGH Warsaw School of Economics (tutorials at the Faculty of Mathematics and Information Science, Warsaw University of Technology)
Place
Warsaw, Poland
Format
In person
Status
Past
Attendance
—
Website
user2026.r-project.org
Recorded
13 sponsors · 178 speaker appearances
Notes
Jointly organized by three Warsaw universities. Tutorials on 6 July at Warsaw University of Technology; conference 7-9 July at SGH. The Indico timetable also lists a 'Virtual Presentation Room' of remote talks, which are not recorded. Speakers: full program from the Indico export (keynotes, talks, lightning talks, tutorials, posters, sponsor session) with affiliations as entered in Indico; keynote affiliations from the keynotes page bios.

Ticket prices

TicketPriceValid untilNotesSource
Student (Early Bird)€150Apr 29, 2026user2026.r-project.org
Academia / Non-profit / Government (Early Bird)€350Apr 29, 2026user2026.r-project.org
Industry (Early Bird)€500Apr 29, 2026user2026.r-project.org
Student (Regular)€200Jun 12, 2026user2026.r-project.org
Academia / Non-profit / Government (Regular)€450Jun 12, 2026user2026.r-project.org
Industry (Regular)€650Jun 12, 2026user2026.r-project.org
Conference dinner€60—user2026.r-project.org

Sponsorship packages

PackagePriceValid untilNotesSource
Violet Sponsor€1,000—user2026.r-project.org
Bronze Sponsor€5,000—user2026.r-project.org
Conference Breaks Sponsor€5,000—user2026.r-project.org
Attendee Swag Sponsor€7,000—user2026.r-project.org
Wireless Access Sponsor€7,500—user2026.r-project.org
Silver Sponsor€10,000—user2026.r-project.org
Opportunity Scholarship€10,000—user2026.r-project.org
Session Recording Sponsor€10,000—user2026.r-project.org
Gold Sponsor€15,000—user2026.r-project.org
Networking Reception with Poster Session Sponsor€15,000—user2026.r-project.org
Evening Social Event Sponsor€20,000—user2026.r-project.org
Platinum Sponsor€25,000—user2026.r-project.org
Live Stream Sponsor€25,000—user2026.r-project.org

Sponsors 13

Speakers and talks 178

SpeakerCompanyRoleTalkLinks
Dariia MykhailyshynaKyiv School of EconomicsKeynoteR Under Sirens: Research, Students, and Community in Wartime Ukraine—
Dianne CookMonash UniversityKeynoteInteractive Graphics for Understanding and Interpreting Nonlinear Model Behaviour in High Dimensions, using R—
Jakub NowosadAdam Mickiewicz University in PoznańKeynoteA world still to be mapped: reflections on geocomputation in R—
Kari L. JordanThe CarpentriesKeynoteThe Work Behind the Work: Sustaining R Through Community—
Peter DalgaardCopenhagen Business SchoolKeynoteRelease management and governance structure of the R project—
Adam ForysRochePosterNow we'R coding! Bringing Agent Assistants Into Live R Sessions—
Adam ForysRocheLightningEnabling Data Exploration Through a Metadata Layer: LLM Integration in cohortBuilder—
Adam StruzikAdam Mickiewicz University in PoznańLightningautomatedRecLin: Record Linkage Based on an Entropy-Maximizing Classifier—
Ahmadou Dicko—Speakersamplyr: A Tidy Grammar for Survey Sampling Design in R—
Aleksander JankowskiUniversity of WashingtonLightningGO-a-GO: Gene Ontology enrichment analysis of gene pairs—
Aleksi LahtinenUniversity of SalzburgSpeakerPractical Strategies for R-Based Research in Secure Data Environments—
Alex K. HagenPotsdam Institute for Climate Impact ResearchSpeakerIntroduction to edgeTransport: developing sustainable transportation futures—
Aleyna ErakcaoğluDepartment of Biostatistics, Erciyes University School of Medicine, Kayseri, TürkiyeLightningApoBcomp: An R Shiny Framework for Apolipoprotein B Estimation and Cardiovascular Risk Modeling—
Alfredo Hernandez SanchezVilnius UniversityLightningDeploying Shiny Apps on Google Cloud Run—
Alyssa Columbus—SpeakerManaging Analytic Multiplicity in Epidemiology: Reproducible Multiverse and Vibration of Effects Analyses in R—
Angelika MeranerStatistics AustriaPosterpersephone3: Object oriented wrapper around the seasonal adjustment packages in the rjdverse—
Anqi FuMemorial Sloan Kettering Cancer CenterWorkshopConvex Optimization in R Using CVXR—
Antoine Fabricynkra GmbHSpeakerExplosive debugging with the 'boomer' package—
Antonio Grosso—SpeakerCreate your own dashboard with EurostatRTool—
Aymeric StammDepartment of Mathematics Jean Leray, UMR CNRS 6629, Nantes UniversitySpeakerThe tractoverse: A unified collection of packages for microstructure-augmented connectivity analysis in R—
Aymeric StammDepartment of Mathematics Jean Leray, UMR CNRS 6629, Nantes UniversitySpeakerThe TDAverse: Modular, interoperable, and extensible topological data analysis in R—
Balasubramanian NarasimhanStanford UniversitySpeakerMetamorphoses: Transforming CVXR to S7 with an AI Agent—
Balasubramanian NarasimhanStanford UniversityWorkshopConvex Optimization in R Using CVXR—
Bartłomiej PłatkowskiEducational Research Institute, Warsaw, PolandLightningFollowing Polish graduates’ pathways with R—
Benjamin SchwendingerFraunhofer Austria Research GmbHSpeakerGrowable Vectors and In-Place Row Operations: A data.table Perspective—
Błażej KochańskiPolitechnika GdańskaLightningComputing ROC AUC Efficiently with R—
Brittany BlankinshipUniversity of WashingtonWorkshopLeaRn and teach at the same time with Pair Programming – code storytelling activity—
Brittany BlankinshipUniversity of WashingtonLightningHow many coders does it take to write a book? Teaching Programming Across Disciplines is out now!—
Charlie GaoPositSpeakerCRDTs for R: Conflict-Free Data Structures for Real-Time Collaboration—
Christian MartinezCUNY Graduate CenterSpeakerTeaching Reproducibility by Design: An End-to-End R Workflow Using Quarto, Open Data, and Package Development—
Christoph Saxcynkra GmbHWorkshopBuilding AI-Powered Data Pipelines with blockr: From Visual Analysis to Custom Extensions—
Claudiu ForgaciDelft University of TechnologyPosterCity River Spaces (CRiSp): Automating and Scaling Up the Delineation of Urban River Spaces—
Claudiu ForgaciDelft University of TechnologyPosterThe Rbanism Community: Empowering Urbanists to Use Research Software Effectively and with Confidence—
Claudiu ForgaciDelft University of TechnologyPosterCross-Language Collaboration in Spatial Data Science: The SDSL Community—
Clievins SelvaDeutschLightningWhy Pay for Survey Platforms? Just Use R!—
Cristina FaricelliISTATSpeakerUnitMix in Production: Multivariate Gaussian Mixtures for Robust Detection of Scale Errors and Outliers—
Cynthia HuangLMU MunichSpeakerReusing 'ggplot2' code: how to design better plot helper functions—
Daisuke IchikawaKibarokuPosterTheseusPlot: Visualizing Decomposition of Differences in Rate Metrics—
Daisuke IchikawaKibarokuPosterdeltatest: Statistical Hypothesis Testing Using the Delta Method for Online A/B Testing—
Daniele GirolimettoDepartment of Statistical Sciences, University of PadovaLightningFoReco and FoRecoML: Unified Forecast Reconciliation in R—
Daphne GrassellyRochePosterFrom Static to Smart: Exception-Driven Medical Data Review with Teal and AI—
David Granjoncynkra GmbHWorkshopBuilding AI-Powered Data Pipelines with blockr: From Visual Analysis to Custom Extensions—
David Granjoncynkra GmbHSpeakerNo code, no limits: blockr, a visual AI driven data pipelines builder for R.—
Deepansh KhuranaDimwit LabsSpeakerPlumbing Your Way to React: Using Plumber APIs to Evolve Shiny Systems—
Edoardo ManciniRocheSpeakerR We There Yet? Surviving the Transition to Package Maturity—
Edzer PebesmaUniversity of MünsterSpeakerAreal interpolation methods—
Efstathios GennatasUCSFSpeakerAdvanced Machine Learning, Visualization, and Agentic AI using rtemis—
Eileen VattheuerStatistics AustriaSpeakerR Package VIM: Flexible Model Adaptive Imputation with Vimpute—
Ella KayeUniversity of BirminghamSpeakerJuggling with S7—
Filip KřikavaCzech Technical University in PraguePosterA Type System for the R Language—
Filiz KaradagEge UniversitySpeakerA Connected Set of R packages for Regularized Regression based on Ridge and S-Type Estimators—
Florian SihlerUlm UniversityLightningflowR: A Dataflow Analysis Framework and Program Slicer for R—
Florian SihlerUlm UniversityPosterAsking the Community: Interesting Queries and Everyday Challenges for the R Ecosystem—
Florian SihlerUlm UniversitySpeakerAn Investigation of the R Package Ecosystem: Insights from the crawlR Project—
Gary Sutton—SpeakerCritical Paths in R: Turning Data Scientists into Effective Project Managers—
Gergely Daroczi—Speakercloud::servers[workload == R][order(cost_efficiency)][1, eval(task)]—
Gero SzepannekStralsund university of Applied SciencesSpeakerOn Balancing Numeric and Categorical Variables for Clustering—
Grzegorz HumennyEducational Research Institute, Warsaw, PolandLightningFollowing Polish graduates’ pathways with R—
H. Sherry ZhangUniversity of WashingtonPosterAn LLM-based Pipeline for Understanding Decision Choices in Data Analysis from Published Literature—
Hanna MeyerUniversity of MünsterPosterTraining and assessment of spatial prediction models: challenges, conceptual frameworks and implemented strategies in the R package CAST—
Håvard R. KarlsenNTNULightningTracking your own time and productivity using R and Clockify—
Håvard R. KarlsenNTNULightningTeaching R with R. How to get started doing lectures with Quarto and reveal.js.—
Henrik BengtssonFutureverse.org, R Foundation, R Consortium, Bioconductor, R anno 2000, University of California San Francisco (UCSF)LightningEvaluate Untrusted R Code Locally Isolated in a webR Sandbox?—
Henrik BengtssonUniversity of WashingtonSpeakerFuturize - Tearing Down Parallelization Barriers in R with Transpilers—
Henrik BengtssonUniversity of WashingtonWorkshopIntroduction to Parallel Processing in R using Futureverse - Easier than Ever Before—
Isaac GravestockRocheLightningicsp2: Stratified interval censoring survival for clinical trial analysis—
Isaac GravestockRochePosterA {ladder} to get on to the (Google) Slides—
Jakub GrzywaczewskiWarsaw University of TechnologySpeakerSerolyzeR - an R package for automated analysis of serological data—
Jakub NowosadAdam Mickiewicz University in PoznańWorkshopGeocomputation with R—
Jan SimsonLMU MunichPosterpeRsian: A collection of Color Palettes from Persian Carpets—
Janez BijecUniversity of WashingtonLightningFrom Administrative Data to Interactive Healthcare Benchmarking: An End-to-End R Workflow—
Jannes Muenchowcynkra GmbHWorkshopGeocomputation with R—
January Weiner—LightningScientific Accountability in Shiny Apps—
Joanna ZylaPolandPosterThe dpGMM package for stable initialization in Gaussian Mixture Modeling—
Juan Claramunt GonzalezLeiden UniversityLightningmetacart 3.0: Classification and regression trees for Exploratory Moderator Analysis in Meta-Analysis—
Karolina WidziszDepartment of Computer Graphics, Vision and Digital Systems, Silesian University of Technology, Gliwice, PolandPostergenMPGMM: A synthetic data generator with controlled feature partitions and cluster similarity for evaluating pattern discovery methods—
Katarzyna KopczewskaUniversity of WashingtonWorkshopModelling spatial density of geo-located point data—
Katrina BrockMax Planck Institute of Animal BehaviorSpeakerTravel Paths: Bridging the usability gap in open source animal movement algorithms—
kazuyuki sano—PosterTheseusPlot: Visualizing Decomposition of Differences in Rate Metrics—
kazuyuki sano—Posterdeltatest: Statistical Hypothesis Testing Using the Delta Method for Online A/B Testing—
Koji MakiyamaHOXO-M IncPosterdeltatest: Statistical Hypothesis Testing Using the Delta Method for Online A/B Testing—
Koji MakiyamaHOXO-M IncPosterTheseusPlot: Visualizing Decomposition of Differences in Rate Metrics—
Kristian Vepsäläinenfreelance data scientistSpeakerWhen One Hundredth of a Second Matters: Bayesian Counterfactual Modeling in R—
Krystian Igras7NLightningEnabling Data Exploration Through a Metadata Layer: LLM Integration in cohortBuilder—
Krzysztof DybaAdam Mickiewicz University in PoznańWorkshopIntroduction to spatial data science—
Laia Domenech-BurinSovereign Tech AgencySpeakerMeasuring the Invisible: Investing in R's Core Infrastructure—
Laura Bąkała—LightningEven faster C for ultimate R performance—
Laure CougnaudOpenAIPosterGit-based workflow for the validation of a R package—
Liam MuellerUC San DiegoLightningLet triangles solve your multinomial problems: Using simplexes to analyze low dimension trade-offs—
Lluís Revilla Sancho—SpeakerMaintaining a package on CRAN—
Lluís Revilla SanchoRocheSpeaker{teal}: A production-ready modular framework for reproducible data exploration on clinical trials—
Lorenzo BraschiRocheSpeaker5 years of internal software validation in Roche—
Maciej Banas—LightningMoving data computation to web browser with 'jsplyr'—
Maciej NasińskiUCB & University of WarsawSpeakerGood Programming Practices, Design and Agile in the Era of AI-Generated Code—
Maciej RomaniukSystems Research Institute, PASLightningImputation methods and their benchmarking for fuzzy datasets with R—
Magdalena KrochmalRochePosterFrom Static to Smart: Exception-Driven Medical Data Review with Teal and AI—
Magdalena KrochmalRochePosterNow we'R coding! Bringing Agent Assistants Into Live R Sessions—
Magnus MengelbierIndependent / FreelancerSpeakerR Analysis and the Math of Automation at Scale—
Magnus MengelbierIndependent / FreelancerSpeakerQuality Control Risk Model for R Package Validation—
Marc BeckerLudwig Maximilian University of MunichPosterrush: A Database-Centric Architecture for Distributed Computing in R—
Marcin DubelAppsilonSponsor talkSponsor Session—
Marcin DubelAppsilonPosterInteractive and Instant: GenAI-Driven Creation of Clinical Trial Applications—
Marco ColomboUniversity of HeidelbergSpeakerFuzz Testing R-Based Research Software for Robustness—
Mark PadghamrOpenSciSpeakerThe (aggregated) history of every CRAN package ever—
Marta BernardiTU DresdenLightningTeaching R for Applied Economics: From Zero to Causal Inference—
Martin BinderDepartment of Statistics, LMU MunichLightningcelecx: Active Learning for Computer Experiments in R—
Martin ZubaAustrian National Public Health Institute (GOEG)LightningShiny Rhinos Docking Ducks on a Shoestring: How We Built the Austrian Health Atlas—
Máté SzilczViti ScienceLightningSweEpiAI: An LLM-Powered R Shiny Application for Natural Language Exploration of Swedish Epidemiological Data APIs—
Matthew HaffnerUniversity of WashingtonLightningR as Complete Teaching Infrastructure: Automating and Enriching University Geography Education—
Matthew ValkoBoehringer IngelheimLightningRxsim: Reducing friction in simulating clinical trials (RCT) using R6 programming.—
Mauro LopreteUniversidad de la República, UruguayPostermetasurvey: Reproducible Survey Data Processing with Step Pipelines in R—
Max MarchiCleveland GuardiansSpeakerAnalyzing Sports Data with R—
Maximilian MückeLMU MunichLightningbbk: Accessing Central Bank Data in R—
Maximilian MückeLMU MunichSpeakermlr3forecast: Extending mlr3 to time series forecasting—
MIchał RamszaSGH Warsaw School of EconomicsWorkshopQuarto and AI for reproducible documents—
Mikael Jagan—SpeakerMoving towards R package 'Matrix' version 2.0-0—
Mike SmithPfizerSponsor talkSponsor Session—
Mitchell O'Hara-WildMonash UniversitySpeakerSemantic vectors for safer statistics—
Moritz LangRocheLightningroxyreqs: Adding roxygen2-style documentation to testthat—
Natalia da SilvaUniversidad de la República, UruguaySpeakerAn Enhanced Projection Pursuit Tree Classifier with Visual Methods for Assessing Algorithmic Improvements—
Nick BarrowmanChildren's Hospital of Eastern Ontario Research Institute, University of OttawaWorkshopExploring and visualizing data subsets using the vtree package—
Nicolas Flores CastilloBHPSpeakerWorkforce Digital Twins: Individual-Level Stochastic Simulation for Strategic Workforce Planning in R—
Nuno SepúlvedaWarsaw University of TechnologySpeakerSerolyzeR - an R package for automated analysis of serological data—
Olajoke Oladipocynkra GmbHSponsor talkSponsor Session—
Oleg LugovoyOptimal Solution LLCWorkshopCANCELLED - Energy Systems Modeling with R—
Olgun AydinGdansk University of TechnologySpeakerA Connected Set of R packages for Regularized Regression based on Ridge and S-Type Estimators—
Oscar de LeonUniversidad del Valle de GuatemalaPosterpemr: A Unified R Interface for Managing Personal Exposure Monitor Data in Air Pollution Research—
Oscar TheesFHWN / SwissAnonSpeakerEvaluating Disclosure Risk in Synthetic Data with the R Package riskutility—
Ozancan OzdemirUniversity of WashingtonPosterFinDash Pro: An Integrated R Shiny Dashboard for Real-Time Financial Analysis, Machine Learning Forecasting, and LLM-Augmented Decision Support—
Patryk KołbykoSzkoła Doktorska Nauk Społecznych UMCS. Uniwersytet Marii Curie-Skłodowskiej w LubliniePosterEstimating Poland’s Natural Rate of Interest in R: A Bayesian VECM Workflow for Cointegration, Model Selection, and Monetary Policy Stance Analysis—
Pawel OrzechowskiUniversity of WashingtonLightningHow many coders does it take to write a book? Teaching Programming Across Disciplines is out now!—
Pawel OrzechowskiUniversity of WashingtonWorkshopLeaRn and teach at the same time with Pair Programming – code storytelling activity—
Pawel RuckiRocheLightningR Documentation as an AI Tool—
Pawel RuckiRocheLightningBuilding the Ultimate R AI Assistant—
Pierre Donat-BouilludCzech Technical University in PragueSpeakerBeyond Code Coverage: Mutation Testing in R with MutatoR—
Prakhar SrivastavaIndian Institute of Information Technology UnaPosterStatistical Analysis and Visualization of Indian Development—
Raniere Gaia Costa da Silva—LightningScaling training to infinity... and beyond!—
Robert GentlemanDana Farber/Harvard Cancer CenterSpeakerTowards Reproducible Research using NHANES Data—
Roger BivandNorwegian School of EconomicsSpeakerIs here still where it was? Changes in terrestrial reference frames in R spatial packages—
Rozeta Simonovska—LightningClinical Output Review with R—
Sarah ListabarthTU DresdenLightningTeaching R for Applied Economics: From Zero to Causal Inference—
Saras WindeckerThe Kids Research Institute, Perth, AustraliaLightningMarrying form and function: design takeaways from an R package for estimating real-time epidemic trends from multiple streams of surveillance data—
Saumil ShahBoehringer IngelheimLightningRxsim: Reducing friction in simulating clinical trials (RCT) using R6 programming.—
Serra İlayda Yerlitaş TaştanDepartment of Biostatistics, Erciyes University School of Medicine, Kayseri, TürkiyePosterFrom Linear to Machine Learning: An Interactive Shiny Framework for Diagnostic Test Combination in R—
Seun OlufemiBioinformatics Outreach NigeriaLightningEmpowering African Life Scientists Through R: Outcomes of a 3-Day Bioinformatics Outreach Nigeria Training—
Shinichi Takayanagi—PosterTheseusPlot: Visualizing Decomposition of Differences in Rate Metrics—
Shinichi Takayanagi—Posterdeltatest: Statistical Hypothesis Testing Using the Delta Method for Online A/B Testing—
shristi yIIIT UNAPosterAnalyzing Global Music Trends Using Spotify Audio Features: A Data-Driven Analysis in R—
Shuai WuMSDLightningTo Save or Not to Save: Parallel Bayesian Testing for R Packages—
Simon Urbanek—SpeakerIn memoriam: Tomáš Kalibera—
Simon Urbanek—SpeakerInteractive Graphics for Analyses, Documents and Dashboards—
Sina ChenGESIS Leibniz Institute for the Social SciencesLightningpaperboy - A Collection of News Media Scrapers in R—
Sinead MoylettUniversity of WashingtonLightningEvaluating imputation strategies for longitudinal cohort studies—
Susanne SteinmannClinical Cancer Registry Lower-Saxony, Team Data AnalysisLightningR communities – from first crush to long-term relationship—
Szymon MaksymiukRocheSpeaker5 years of internal software validation in Roche—
Szymon MaksymiukWUTSpeakerWhat If We Break Base R? Bug Propagation in CRAN—
Teresa Gonzalez-ArteagaUniversidad de ValladolodPosterFlexible Aggregation with SUOWA Operators in R. An Implementation Based on the Choquet Integral—
Thierry OnkelinxResearch Institute for Nature and ForestLightningStreamlining reproducible research with `checklist`: new organisation management and enhanced quality control—
Thomas PetzoldtTUD - Dresden University of TechnologySpeakerPlayful Teaching of Simulation Models: From Monolithic Shiny Apps to Quarto Dashboards and webR—
Tim AppelhansFriedrich-Alexander-University Erlangen-NürnbergSpeakerModernizing R's web-mapping capabilities—
Tina RozsosVrije Universiteit AmsterdamLightningComprehensive PhD documentation with R and Quarto—
Tom ElliottiNZight Analytics LtdSpeakerBuilding stateful web apps with Rserve—
Tomasz KalinowskiPositLightningMaking R a First-Class Environment for LLMs—
Tomasz ŻółtakInstitute of Philosophy and Sociology, Polish Academy of SciencesLightningFollowing Polish graduates’ pathways with R—
Tomasz ŻółtakInstitute of Philosophy and Sociology, Polish Academy of SciencesWorkshopFrom Collecting Log-data to Analyzing Process Indicators with logLime R Package—
Torsten HothornCH/DESpeakerstats::free1way(): Semiparametrically Efficient Population and Permutation Inference in Distribution-free Stratified K-sample Oneway Layouts—
Victor YuHertfordshire County CouncilPosterA Package for Performing Multiple Interrupted Time Series with Control—
Vihan SinghIndian Institute of Information Technology UnaPosterStatistical Analysis and Predictive Modeling of IPL Match Data Using R—
Vincent Arel-BundockUniversité de MontréalLightningCausal Inference with marginaleffects—
Wang Pok LoUniversity of WashingtonPosterVisualisation of results from large simulation studies: introducing the multi-performance plot and its Shiny app—
Ward LangeraertResearch Institute for Nature and ForestPosterOrchestrating the b3verse: Elevating Research Software through a Modular R Package Ecosystem—
Winkle Lu—PosterPatient Timeline Visualization: Presenting Individual and Population-Level Clinical Trial Journeys with R and D3.js—
Winkle Lu—LightningReproducible Clinical Data Review: A Modular R and Quarto Workflow for Transparent Reporting—
Wojciech WójciakWarsaw University of TechnologyLightningSolving Optimum Allocation Problems in Stratified Sampling Using the R Package stratallo—
Wolfgang ViechtbauerMaastricht University, NetherlandsSpeakerWriting Interactive Applications with Base R using getGraphicsEvent()—
Yasuto NAKANOKwansei Gakuin UniversityPoster**md2qstn** : An R Package for Reproducible Survey Design and Lifecycle Management—
Yuki YanaiKochi University of TechnologyPosterrgamer: A package to help students learn game theory using R—
Zuzanna BrzozowskaAustrian National Public Health Institute (GOEG)LightningShiny Rhinos Docking Ducks on a Shoestring: How We Built the Austrian Health Atlas—

Sources