let rec weng = ~weng cv misc contact blog 博客

funny

# Shiwei Weng 翁士伟

I am a fifth-year Ph.D. student in the Department of Computer Science at Johns Hopkins University. My advisor is Dr. Scott Smith and I am a member of The Programming Languages Laboratory. I got my joint bachelor’s degree from Fudan University and University College Dublin in 2013 and master’s degree from JHU in 2018. My one-page CV is here (updated Aug 2021).

My research interests span several aspects of programming languages. I believe programming languages can provide solutions to problems in other areas of computer science. I am active in our lab’s weekly seminar and happy to chat about them.

# Research

Higher-Order Demand-Driven Symbolic Execution [lab page]

Symbolic backwards execution of functional languages
Start from any position in programs
Establish the soundness and develop a test generation algorithm. See publication [ICFP 2020].
(In progress) Bounded Model Checking [repo]
Give a talk at NJPLS 2022 ([pic]) for progress on the BMC.

# Work

Microsoft Research Lab, Redmond (virtually), Summer 2021,

I worked as a Research Intern on Checked C project. I designed and implemented a dataflow analysis which gathers pre/post-conditions at program points and an SMT-based proof framework to reduce false-positive compiler warnings. It’s a wonderful summer. Thanks to my mentor Sulekha Kulkarni, the boss David Tarditi and all the team members!

Something before

Before graduate school, I took several jobs in start-ups and freelance work, mostly in full-stack web programming.

# Professional

OOPSLA’23 Extended Review and Artifact Evaluation Committee
Volunteer for SPLASH 2017, SPLASH 2018, ICFP 2020, OCaml 2020
Attend OPLSS 2022, PLISS 2017, [email protected] 2017

# Teaching

Head Teaching Assistant, 601.426/626 Principles of Programming Languages, Spring 18 (evaluation 1 2) / 19 (evaluation)
Course Assistant, 601.426/626 Principles of Programming Languages, Spring 20 / 21 /22
Course Assistant, 601.329 Functional Programming in Software Engineering, Fall 20 / 21 / 22

# Publications

Zachary Palmer, Theodore Park, Scott Smith, Shiwei Weng, Higher-Order Demand-Driven Symbolic Evaluation, ICFP 2020 [page] [doi] [pdf] [repo] [talk (slide)]

# Open Source

Maintain z3-ocaml after fixing a notorious bug lasting for years (explanation on OCaml Discuss).

# Misc

I play video games. The unexamined game is not worth playing.

I am married to Xiaoxi Chen 陈小溪. I teach her programming and she teaches me human anatomy.

We have a cat but there is usually more at home (2 cats, 3 cats).