egglog
automerge
egglog | automerge | |
---|---|---|
4 | 45 | |
337 | 3,134 | |
3.3% | 4.0% | |
9.5 | 9.2 | |
9 days ago | 6 days ago | |
Rust | JavaScript | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
egglog
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Towards a New SymPy
The herbie project using egraphs to explore different ways of rewriting floating point expressions. https://herbie.uwplse.org/ One can also write custom rulesets in egglog (a new egraph rewriting system / language / datalog) https://egraphs-good.github.io/egglog/?example=herbie
The approach is not yet anywhere near being able to touch all the domains sympy can handle. Destructive term rewriting tends to be a bit more forgiving to unsoundness in the rules and still returning roughly meaningful results. EGraph rewriting (and other automated reasoning systems) tend to just return junk as soon as you aren't careful about your semantics. Associativity and commutativity are ubiquitous in CAS applications and encoding these concepts in general purpose terms is rather unsatisfying. The post above emphasizes specialty methods for polynomials, which it would be desirable to find a clean way to integrate into egraph techniques. Variable binding (which is treated in a rather mangled form in CAS systems) is seemingly important for treating summation, differentiation, and integration correctly. The status of doing variable binding efficiently and correctly in egraphs is also unclear imo.
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What is the state of the art for creating domain-specific languages (DSLs) with Rust?
For semantic analyzers, check out egg and egglog. They're custom data structures for representing compiler rewrite rules in a non-destructive way.
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Ask HN: What is new in Algorithms / Data Structures these days?
The recent work on relational, datalog-inspired egraphs in PLDI this year ("Unifying Datalog and Equality Saturation") is actually interesting because it can solve cases like the y/x*x -> y identity example, by the power of an interval analysis on x (among other things.) Sort of like adding a postulate but instead it's by adding relations between terms in the graph.
https://github.com/egraphs-good/egglog
https://arxiv.org/pdf/2304.04332.pdf
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Better Together: Unifying Datalog and Equality Saturation
Close, but the link is on Page 13, and it points here: https://github.com/mwillsey/egg-smol
Unfortunately the naming is all a bit confusing, isn't it....
automerge
- Automerge CRDT
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Flutter offline
I'm not aware of any usable CRDT implementations for Dart, my plan is to use the flutter_rust_bridge to make use of automerge v2, which is a full CRDT implementation written in Rust that has the advantage of having a very simple API to work with (basically a key/value store).
- Ask HN: What is new in Algorithms / Data Structures these days?
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Best local database that works on all platforms including web?
Yes. I asked the devs about ideas for this in this ticket and got an interesting response. It's aimed towards server-side handling, but the same ideas apply to local storage as well.
- Show HN: Pg_CRDT – an experimental CRDT extension for Postgres
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CRDTs: A Beginner's overview for building a collaborative app
There are a lot of implementations of CRDTs out there. In JavaScript, for instance, we have Y.js (https://github.com/yjs/yjs) and automerge (https://github.com/automerge/automerge). There’s also a Y.js demo (https://demos.yjs.dev/prosemirror/prosemirror.html) that allows you to play around with them and have your own collaborative app running in just a few seconds. All messages are exchange via webRTC and manages the state via CRDTs. This can be a great sandbox to understand how CRDTs work and see.
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Evan Wallace CRDT Algorithms
Anyone unsure of what a CRDT is, this is the perfect intro: https://www.inkandswitch.com/peritext/
The two most widely used CRDT implementations (combining JSON like general purpose types and rich text editing types) are:
- Automerge https://github.com/automerge/automerge
- Yjs https://github.com/yjs/yjs
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Should I Move From PHP to Node/Express?
For instance, practicing "local first web" using automerge with all it's Distributed Persistence Primitives on CRDT's and Vector Clocks - i.e. when the Browser View is treated like a Database replica, essentially; or adopting a real data mapper that's giving you an API from your database Schema, using Prisma or Hasura... or even implementing a custom codegenereted one, as a babel plugin, on top of TSED and Micro-ORM.
- Maintaining Referential Integrity During Insertions And Deletions
- Muse 2.0
What are some alternatives?
ezno - A JavaScript compiler and TypeScript checker written in Rust with a focus on static analysis and runtime performance
yjs - Shared data types for building collaborative software
libclc - Cache Line Container - C11
crdt-benchmarks - A collection of CRDT benchmarks
scryer-prolog - A modern Prolog implementation written mostly in Rust.
y-websocket - Websocket Connector for Yjs
flix - The Flix Programming Language
FluidFramework - Library for building distributed, real-time collaborative web applications
slate-yjs - Yjs binding for Slate
mpack - MPack - A C encoder/decoder for the MessagePack serialization format / msgpack.org[C]
SyncedStore - SyncedStore CRDT is an easy-to-use library for building live, collaborative applications that sync automatically.