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<title>Contribute — Statlib</title>
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<a href="tutorial/index.html">Tutorial</a>
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<a href="roadmap.html">Roadmap</a>
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<a href="contribute.html" class="active">Contribute</a>
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<a href="index.html" class="brand">Statlib</a>
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<a href="index.html">About</a>
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<a href="tutorial/index.html">Tutorial</a>
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<a href="roadmap.html">Roadmap</a>
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<a href="projects.html">Projects</a>
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<h1>Contribute</h1>
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<p>Statlib welcomes contributions &mdash; questions, formalization.</p>
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<p>Statlib welcomes all kinds of contributions, including questions, examples, formalization requests, project proposals, and pull requests.</p>
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<p>Our team is also actively building projects across core areas of statistics; see the <a href="projects.html">Projects</a> page for current directions.</p>
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<p>Open an issue or a pull request against <a href="https://github.com/stat-lib/statlib">stat-lib/statlib</a></p>
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<meta name="description" content="A Lean 4 library for foundational and modern theoretical statistics.">
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<a href="tutorial/index.html">Tutorial</a>
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<a href="roadmap.html">Roadmap</a>
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<a href="tutorial/index.html">Tutorial</a>
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<a href="roadmap.html">Roadmap</a>
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<a href="projects.html">Projects</a>
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We would like to thank <a href="https://www.contrib.andrew.cmu.edu/~avigad/">Jeremy Avigad</a> (Carnegie Mellon University) and <a href="https://remydegenne.github.io/">R&eacute;my Degenne</a> (Inria center at the University of Lille) for support and encouragement in the process of initiating and developing this library.
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Our team of initial contributors includes <strong><a href="https://coolrmal.github.io/">Yongxi (Aaron) Lin</a></strong> (<em>Carnegie Mellon University</em>), <strong><a href="https://debarghya-mukherjee.github.io/">Debarghya Mukherjee</a></strong> (<em>Boston University</em>), <strong><a href="https://rajarshi-mukherjee24.github.io/">Rajarshi Mukherjee</a></strong> (<em>Harvard University</em>), <strong><a href="https://sites.google.com/view/fredraj">Fred Rajasekaran</a></strong> (<em>Stanford University</em>), and <strong><a href="https://zixiaowang17.github.io/">Zixiao Jolene Wang</a></strong> (<em>Harvard University</em>).
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Our team of initial contributors, listed in alphabetical order, includes <strong><a href="https://coolrmal.github.io/">Yongxi (Aaron) Lin</a></strong> (<em>Carnegie Mellon University</em>), <strong><a href="https://debarghya-mukherjee.github.io/">Debarghya Mukherjee</a></strong> (<em>Boston University</em>), <strong><a href="https://rajarshi-mukherjee24.github.io/">Rajarshi Mukherjee</a></strong> (<em>Harvard University</em>), <strong><a href="https://sites.google.com/view/fredraj">Fred Rajasekaran</a></strong> (<em>Stanford University</em>), and <strong><a href="https://zixiaowang17.github.io/">Zixiao Jolene Wang</a></strong> (<em>Harvard University</em>).
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<a href="index.html">About</a>
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<a href="tutorial/index.html">Tutorial</a>
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<a href="roadmap.html">Roadmap</a>
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<a href="projects.html" class="active">Projects</a>
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<h1>Projects</h1>
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We welcome researchers in sub-areas of statistics to propose projects, contribute projects, and help evolve the library! These projects connect concrete formalization work with the broader Statlib <a href="roadmap.html">roadmap</a>.
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</p>
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<section class="project" id="semiparametric-efficiency-theory">
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<h2>1. Semiparametric Efficiency Theory</h2>
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<p class="project-label">Description.</p>
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<p>
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This project formalizes foundational results in semiparametric efficiency theory, especially the asymptotic theory underlying efficient estimation in statistical models.
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</p>
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<p class="project-label">Milestones.</p>
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<ul class="items">
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<li>Contiguity</li>
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<li>Local asymptotic normality, or LAN</li>
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<li>Hájek–Le Cam Local Asymptotic Minimax Theorem</li>
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<li>Convolution theorem</li>
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<p>Rajarshi Mukherjee; Aaron Lin</p>
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<p class="project-link"><strong>Roadmap.</strong> <a href="roadmap.html#sec-1-4">1.4 Semiparametric Efficiency Theories</a></p>
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<h2>2. ID Algorithm and Causal Inference</h2>
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<p class="project-label">Description.</p>
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This project focuses on formalizing tools from causal inference, especially graphical models and identification theory. A central goal is to formalize the ID algorithm and related results about causal effects.
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<p class="project-label">Milestones.</p>
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<li>Graphical models</li>
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<li>Causal diagrams</li>
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<li>Identification of causal effects</li>
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<p class="project-label">Maintainer.</p>
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<p>Qingyuan Zhao</p>
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<p class="project-link"><strong>Roadmap.</strong> <a href="roadmap.html#sec-1-12">1.12 Causal Identification Theories</a></p>
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</section>
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<section class="project" id="decision-theory-and-statistical-experiments">
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<h2>3. Decision Theory and Statistical Experiments</h2>
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<p class="project-label">Description.</p>
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This project studies the formalization of statistical experiments, their comparisons, and convergence, along with other decision-theoretic foundations such as the minimax theorem and complete class theorem.
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</p>
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<p class="project-label">Milestones.</p>
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<li>Convergence of Statistical Experiments</li>
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<li>Sufficiency, Completion, and Ancillarity of Sigma Fields</li>
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<li>Minimax theorem</li>
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<p class="project-label">Maintainer.</p>
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<p>Zixiao Wang</p>
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<p class="project-link"><strong>Roadmap.</strong> <a href="roadmap.html#sec-1-1">1.1 Fundamentals of Decision Theory</a>; <a href="roadmap.html#sec-1-2">1.2 Comparison of Experiments</a></p>
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<h2>4. Empirical Process Foundations</h2>
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<p class="project-label">Description.</p>
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This project develops the foundations of empirical process theory needed for asymptotic statistics.
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<p class="project-label">Milestones.</p>
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<li>Maximal inequalities</li>
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<li>Glivenko–Cantelli lemma</li>
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<li>Donsker's theorem</li>
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</ul>
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<p class="project-label">Maintainer.</p>
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<p>Debarghya Mukherjee</p>
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<p class="project-link"><strong>Roadmap.</strong> <a href="roadmap.html#sec-1-13">1.13 Core Probabilistic Toolbox</a></p>
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<section class="project" id="propose-a-project">
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<h2>Propose a Project</h2>
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If you would like to propose a new project, please contact Rajarshi Mukherjee at <a href="mailto:ram521@mail.harvard.edu">ram521@mail.harvard.edu</a>.
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We have curated a broad selection of core topics by reviewing foundational textbooks and leading journals in mathematical statistics, prioritizing the bedrock theories that have underpinned research over the last two decades. This list is intentionally non-exhaustive. Our goal is to systematically expand it to encompass modern research programs, such as high-dimensional statistics, random matrix theory, conformal inference, the theory of E-values, and computational-statistical trade-offs.
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Furthermore, we recognize that much of contemporary and classical theoretical statistics relies fundamentally on empirical process theory and concentration inequalities. Given the immense depth of these fields, we have not yet charted specific results. Instead, we aim to populate these areas organically through community engagement, collaborating to discuss and prioritize our formalization efforts.
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We have curated a broad selection of core topics by reviewing foundational textbooks and leading journals in mathematical statistics, prioritizing the bedrock theories that have underpinned research over the last two decades. This list is intentionally non-exhaustive. Our goal is to systematically expand it to encompass modern research programs, such as high-dimensional statistics, random matrix theory, conformal inference, the theory of E-values, and computational-statistical trade-offs.
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Furthermore, we recognize that much of contemporary and classical theoretical statistics relies fundamentally on empirical process theory and concentration inequalities. Given the immense depth of these fields, we have not yet charted specific results. Instead, we aim to populate these areas organically through community engagement, collaborating to discuss and prioritize our formalization efforts.
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