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Introducing PathQuery, Google's Graph Query Language

Introducing PathQuery, Google's Graph Query Language We introduce PathQuery, a graph query language developed to scale with Google's query and data volumes as well as its internal developer community. PathQuery supports flexible and declarative semantics. We have found that this enables query developers to think in a naturally "graphy" design space...

Google announces Logica: organizing your data queries, making them universally reusable and fun

You can read more about it at the Google Open Source blog post, Logica: organizing your data queries, making them universally reusable and fun. They advocate for datalog-like language they developed internally at Google. The reason? Good programming is about creating small, understandable, reusable pieces of logic that can be tested, given names,...

Coq will be renamed

From the Coq-club: The Coq development team acknowledges the recent discussions (started on the Coq-Club mailing list) around Coq's logo and name. We wish to thank everyone that participated in these discussions. Testimonies from people who experienced harassment or awkward situations, reports about students (notably women) who ended up not learning...

LAMBDA: The ultimate Excel worksheet function

Post by Andy Gordon and Simon Peyton Jones on LAMBDA giving Excel users the ability to define functions. Ever since it was released in the 1980s, Microsoft Excel has changed how people organize, analyze, and visualize their data, providing a basis for decision-making for the millions of people who use it each day. It’s also the world’s most widely...

Google Brain's Jax and Flax

Google's AI division, Google Brain, has two main products for deep learning: TensorFlow and Jax. While TensorFlow is best known, Jax can be thought of as a higher-level language for specifying deep learning algorithms while automatically eliding code that doesn't need to run as part of the model. Jax evolved from Autograd, and is a combination of...

Built to Last

Mar Hicks. Built to Last. Logic. Issue 11, "Care". It was this austerity-driven lack of investment in people—rather than the handy fiction, peddled by state governments, that programmers with obsolete skills retired—that removed COBOL programmers years before this recent crisis. The reality is that there are plenty of new COBOL programmers out there...

Tackling the Awkward Squad for Reactive Programming

https://2020.ecoop.org/details/ecoop-2020-papers/19/Tackling-the-Awkward-Squad-for-Reactive-Programming-The-Actor-Reactor-Model Sam Van den Vonder, Thierry Renaux, Bjarno Oeyen, Joeri De Koster, Wolfgang De Meuter Reactive programming is a programming paradigm whereby programs are internally represented by a dependency graph, which is used to...

The Simple Essence of Algebraic Subtyping: Principal Type Inference with Subtyping Made Easy

The Simple Essence of Algebraic Subtyping: Principal Type Inference with Subtyping Made Easy, Lionel Parreaux, ICFP 2020. MLsub extends traditional Hindley-Milner type inference with subtyping while preserving compact principal types, an exciting new development. However, its specification in terms of biunification is difficult to understand, relying...

Applications of Blockchain to Programming Language Theory

Let's talk about Blockchain. Goal is to use this forum topic to highlight its usefulness to programming language theory and practice. If you're familiar with existing research efforts, please share them here. In addition, feel free to generate ideas for how Blockchain could improve languages and developer productivity. As one tasty example: Blockchain...

Turnstile+: Dependent Type Systems as Macros

In 2017, a team from Northeastern University released Turnstile, a framework for implementing propositionally typed languages in Racket; cf. naasking's story Type Systems as Macros. The system was really nice because it allowed type systems to be expressed in a manner similar to the way theoretical PL researchers would in a paper, and because it hooked...

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