The Seventh International Workshop on Languages for InferenceLAFI 2022
NEWS LAFI 2022 will be a purely virtual event. Detailed schedule to be posted soon. 
This workshop aims to bring programming-language and machine-learning researchers together to advance all aspects of languages for inference.
Topics include but are not limited to:
- Design of programming languages for statistical inference and/or differentiable programming
- Inference algorithms for probabilistic programming languages, including ones that incorporate automatic differentiation
- Automatic differentiation algorithms for differentiable programming languages
- Probabilistic generative modelling and inference
- Variational and differential modelling and inference
- Semantics (axiomatic, operational, denotational, games, etc) and types for inference and/or differentiable programming
- Efficient and correct implementation
- Applications of inference and/or differentiable programming
Sun 16 JanDisplayed time zone: Eastern Time (US & Canada) change
| 09:00 - 10:00 | KeynoteLAFI at LAFI Chair(s): Cameron Freer Massachusetts Institute of Technology, Ohad Kammar University of Edinburgh | ||
| 09:0060m Keynote | Abstract types in probabilistic programmingRemote LAFI Sam Staton University of OxfordFile Attached | ||
| 10:20 - 12:00 | |||
| 10:2033m Talk | Probabilistic and Differentiable Programming in Scientific SimulatorsRemote LAFI Atılım Güneş Baydin Department of Engineering Science, University of OxfordFile Attached | ||
| 10:5333m Talk | Stateful processes in probabilistic programming Remote LAFI Hugo Paquet University of CambridgeFile Attached | ||
| 11:2633m Talk | Programming Languages for Automatic Differentiation: What Now?Remote LAFI Damiano Mazza CNRSFile Attached | ||
| 13:30 - 14:45 | |||
| 13:3037m Talk | JAX: accelerating ML research with composable function transformationsRemote LAFI Roy Frostig Google Research | ||
| 14:0737m Talk | Scalable structure learning and inference for domain-specific probabilistic programsRemote LAFI Feras Saad Massachusetts Institute of Technology | ||
| 15:05 - 16:20 | |||
| 15:0518m Talk | Towards Denotational Semantics of AD for Higher-Order, Recursive, Probabilistic LanguagesRemote LAFI Alexander K. Lew Massachusetts Institute of Technology, USA, Mathieu Huot Oxford University, Vikash K. Mansinghka MITFile Attached | ||
| 15:2318m Talk | A Language and Smoothed Semantics for Convergent Stochastic Gradient DescentRemote LAFIFile Attached | ||
| 15:4218m Talk | Nonparametric Involutive Markov Chain Monte CarloRemote LAFI Carol Mak University of Oxford, Fabian Zaiser University of Oxford, C.-H. Luke Ong University of OxfordFile Attached | ||
| 16:0118m Talk | Rigorous Approximation of Posterior Inference for Probabilistic ProgramsRemote LAFI Fabian Zaiser University of Oxford, Raven Beutner CISPA Helmholtz Center for Information Security, Germany, C.-H. Luke Ong University of OxfordFile Attached | ||
| 16:40 - 17:30 | KeynoteLAFI at LAFI Chair(s): Ohad Kammar University of Edinburgh, Christine Tasson Sorbonne Université — LIP6 | ||
| 16:4050m Keynote | Program Analysis of Probabilistic ProgramsRemote LAFI Maria I. Gorinova The University of EdinburghFile Attached | ||
Accepted Papers
Call for Extended Abstracts
=====================================================================
                  Call for Extended Abstracts
                           LAFI 2022
          POPL 2022 workshop on Languages for Inference
                         January 16, 2022
           https://popl22.sigplan.org/home/lafi-2022
            Submission deadline on October 20, 2021 - EXTENDED
====================================================================
***** Submission Summary *****
Deadline: October 20, 2021 (AoE) - EXTENDED Link: https://lafi22.hotcrp.com/ Format: extended abstract (2 pages + references)
***** Call for Extended Abstracts *****
Inference concerns re-calibrating program parameters based on observed data, and has gained wide traction in machine learning and data science. Inference can be driven by probabilistic analysis and simulation, and through back-propagation and differentiation. Languages for inference offer built-in support for expressing probabilistic models and inference methods as programs, to ease reasoning, use, and reuse. The recent rise of practical implementations as well as research activity in inference-based programming has renewed the need for semantics to help us share insights and innovations.
This workshop aims to bring programming-language and machine-learning researchers together to advance all aspects of languages for inference. Topics include but are not limited to:
- 
design of programming languages for inference and/or differentiable programming; 
- 
inference algorithms for probabilistic programming languages, including ones that incorporate automatic differentiation; 
- 
automatic differentiation algorithms for differentiable programming languages; 
- 
probabilistic generative modeling and inference; 
- 
variational and differential modeling and inference; 
- 
semantics (axiomatic, operational, denotational, games, etc) and types for inference and/or differentiable programming; 
- 
efficient and correct implementation; 
- 
and last but not least, applications of inference and/or differentiable programming. 
We expect this workshop to be informal, and our goal is to foster collaboration and establish common ground. Thus, the proceedings will not be a formal or archival publication, and we expect to spend only a portion of the workshop day on traditional research talks. Nevertheless, as a concrete basis for fruitful discussions, we call for extended abstracts describing specific and ideally ongoing work on probabilistic and differential programming languages, semantics, and systems.
***** Submission guidelines *****
Submission deadline on October 20, 2021 (AoE) - EXTENDED
Submission link: https://lafi22.hotcrp.com/
Anonymous extended abstracts are up to 2 pages in PDF format, excluding references.
In line with the SIGPLAN Republication Policy, inclusion of extended abstracts in the program is not intended to preclude later formal publication.
Invited Speakers
- Sam Staton, University of Oxford
- Maria Gorinova, Twitter
- Feras Saad, Massachusetts Institute of Technology
- Hugo Paquet, University of Oxford
- Roy Frostig, Google Research
- Atılım Güneş Baydin, University of Oxford
- Damiano Mazza, Université Sorbonne Paris Nord










