tree-flat
sdsl-lite
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| tree-flat | sdsl-lite | |
|---|---|---|
| 2 | 5 | |
| 25 | 2,173 | |
| - | - | |
| 1.9 | 0.0 | |
| almost 1 year ago | 11 months ago | |
| Rust | C++ | |
| Apache License 2.0 | GNU General Public License v3.0 or later |
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tree-flat
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Ask HN: What are some 'cool' but obscure data structures you know about?
I made https://github.com/mamcx/tree-flat as flattened stored tree in pre-order that allows for very fast iterations even for childs/parent queries. Is based on APL, so not that novel.
I also like a lot the relational model, is not that much represented so I making a language on top of it: https://tablam.org.
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What’s everyone working on this week (9/2022)?
Working in the flattest tree library for Rust (https://github.com/mamcx/tree-flat), inspired by the talk “High-performance Tree Wrangling, the APL Way” by Aaron Hsu.
sdsl-lite
- SDSL – Succinct Data Structure Library
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Ask HN: What are some 'cool' but obscure data structures you know about?
Succinct Data Structures [0] [1]. It encompass many different underlying data structure types but the overarching idea is that you want small data size while still keeping "big O" run time.
In other words, data structures that effectively reach a 'practical' entropy lower bound while still keeping asymptotic run time.
[0] https://en.wikipedia.org/wiki/Succinct_data_structure
[1] https://github.com/simongog/sdsl-lite
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SDSL-RS: A Rust interface for the C++ Succinct Data Structure Library.
The book mentioned in another comment is probably the best way to go. But FYI, documentation for some data structures include references. An SDSL-lite example can be found here. And its equivalent in SDSL-RS can be found here.
What are some alternatives?
multiversion-concurrency-control - Implementation of multiversion concurrency control, Raft, Left Right concurrency Hashmaps and a multi consumer multi producer Ringbuffer, concurrent and parallel load-balanced loops, parallel actors implementation in Main.java, Actor2.java and a parallel interpreter
sdsl-lite - Succinct Data Structure Library 3.0
atomic-server - An open source headless CMS / real-time database. Powerful table editor, full-text search, and SDKs for JS / React / Svelte.
plurid-data-structures-typescript - Utility Data Structures Implemented in TypeScript
indicatif - A command line progress reporting library for Rust
minisketch - Minisketch: an optimized library for BCH-based set reconciliation
conserve - 🌲 Robust file backup tool in Rust
dictomaton - Finite state dictionaries in Java
TablaM - The practical relational programing language for data-oriented applications
gring - Golang circular linked list with array backend
ann-benchmarks - Benchmarks of approximate nearest neighbor libraries in Python
pyroscope - Continuous Profiling Platform. Debug performance issues down to a single line of code [Moved to: https://github.com/grafana/pyroscope]