Initial Commit

.envrc

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+use nix

.gitattributes

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+*.pdf filter=lfs diff=lfs merge=lfs -text

.gitignore

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+# Ignore swap files and stack/cabal output.
+*.hi
+*.o
+*.swo
+*.swp
+*~
+.DS_Store
+TAGS
+dist
+tags
+cabal.sandbox.config
+.cabal-sandbox/
+.stack-work
+dist
+dist-*
+.ghc.environment.*
+
+# Ignore test builds.
+tests/Main
+_cache
+_store
+_site
+
+# Rest of the file: ignore examples
+web/_cache
+web/_site
+web/site
+web/reference
+
+# This is generated from the CHANGELOG
+web/releases.markdown

default.nix

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+let pkgs = import <nixpkgs> { };
+in
+  pkgs.haskellPackages.developPackage {
+    root = ./.;
+    modifier = drv:
+      pkgs.haskell.lib.addBuildTools drv (with pkgs.haskellPackages;
+        [ cabal-install
+          haskell-language-server
+        ]);
+  }

index.org

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+* Yiyun Liu
+- E-mail :: [[mailto:liuyiyun@seas.upenn.edu][liuyiyun@seas.upenn.edu]]
+- Social :: [[https://bsky.app/profile/ohqo.bsky.social][ohqo.bsky.social@BluesKy]]
+- Blog :: [[https://blog.electriclam.com][blog.electriclam.com]]
+- Github :: [[https://github.com/yiyunliu][yiyunliu]]
+
+I am currently a fourth-year CS PhD student at University of
+Pennsylvania, advised by [[https://www.seas.upenn.edu/~sweirich/][Prof. Stephanie Weirich]]. I got my MS degree from University of Maryland, advised
+by [[https://www.cs.umd.edu/~mwh/][Prof. Michael Hicks]].
+
+My current research is about integrating dependently typed
+programming languages and graded type systems. I investigate how
+dependent types and grades can benefit from each other. I mechanize
+all my correctness proofs, from syntactic type soundness to semantic
+logical consistency. I'm looking for ways to make such proofs as
+streamlined as possible so we can be more confident about the design
+of our systems while still being productive at exploring new features.
+
+My past research involves formal verification of
+replicated data types, random testing, and modeling of CheckedC in
+Redex.
+
+* Research
+- Consistency of a Dependent Calculus of Indistinguishability (*POPL25*, [[file:papers/dcoiomega.pdf][paper]]) ::
+  *Yiyun Liu*, Jonathan Chan, Stephanie Weirich
+
+- Theoretical Pearl: Short and Mechanized Logical Relation for Dependent Type Theories (Unpublished, [[file:papers/mltt.pdf][draft]]) ::
+  *Yiyun Liu*, Jonathan Chan, Stephanie Weirich
+
+- Internalizing Indistinguishability with Dependent Types (*POPL24*, [[file:papers/dcoi.pdf][paper]]) ::
+  *Yiyun Liu*, Jonathan Chan, Jessica Shi, Stephanie Weirich
+
+- Dependently-Typed Programming with Logical Equality Reflection (*ICFP23*, [[file:papers/systemde.pdf][paper]],[[https://doi.org/10.1145/3607852][doi]]) ::
+  *Yiyun Liu*, Stephanie Weirich
+
+- A Formal Model of Checked C (*CSF22*, [[file:papers/checkedc.pdf][paper]],[[https://doi.ieeecomputersociety.org/10.1109/CSF54842.2022.9919657][doi]]) ::
+  Liyi Li, *Yiyun Liu*, Deena Postol, Leonidas Lampropoulos, David Van Horn, Michael Hicks
+
+- Verifying Replicated Data Types with Typeclass Refinements in Liquid Haskell (*OOPSLA20*, [[file:papers/vrdt.pdf][paper]],[[https://doi.org/10.1145/3428284][doi]]) ::
+  *Yiyun Liu*, James Parker, Patrick Redmond, Lindsey Kuper, Michael Hicks, Niki Vazou

infopage.cabal

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+name:               infopage
+version:            0.1.0.0
+build-type:         Simple
+cabal-version:      >= 1.10
+
+executable site
+  main-is:          site.hs
+  build-depends:    base
+                  , hakyll
+                  , pandoc
+  ghc-options:      -threaded
+  default-language: Haskell2010

site.hs

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+--------------------------------------------------------------------------------
+{-# LANGUAGE OverloadedStrings #-}
+
+import Hakyll
+import Text.Pandoc.Options
+
+--------------------------------------------------------------------------------
+hakyllConfig :: Configuration
+hakyllConfig =
+  defaultConfiguration
+    { deployCommand =
+        "rsync  -ave  \"ssh\" _site/ ohqo@192.168.50.1:/var/www/htdocs/electriclam.com --delete"
+    }
+
+pandocOptions :: WriterOptions
+pandocOptions = defaultHakyllWriterOptions {writerHTMLMathMethod = MathML }
+
+main :: IO ()
+main =
+  hakyllWith hakyllConfig $ do
+    match "css/*" $ do
+      route idRoute
+      compile compressCssCompiler
+    match "papers/*" $ do
+      route idRoute
+      compile copyFileCompiler
+    match "index.org" $ do
+      route $ setExtension "html"
+      compile $ do
+        let indexCtx = constField "title" "Yiyun Liu" <> defaultContext
+        pandocCompiler
+          >>= applyAsTemplate indexCtx
+          >>= loadAndApplyTemplate "templates/default.html" indexCtx
+          >>= relativizeUrls
+    match "templates/*" $ compile templateBodyCompiler

templates/default.html

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+<!doctype html>
+<html lang="en-US">
+    <head>
+        <meta charset="utf-8">
+	<meta name="color-scheme" content="light dark">
+        <link rel="stylesheet" href="/css/pico.min.css" type="text/css"/>
+        <title>$title$</title>
+    </head>
+    <body>
+      <main class="container">
+	$body$
+      </main>
+    </body>
+</html>