One LOESS to Rule Them All: Rebuilding a Classic Smoother in Rust

说明与用途

Rust实现的LOESS算法，数值与R一致，功能更丰富，速度提升至236倍。

问题

Existing LOESS implementations are legacy, limited in features, and hard to extend or optimize.

结果

The Rust implementation matches R’s loess to within 1e-12, offers a richer feature set, and is dramatically faster (47× serial, 236× parallel).

工作流

• Validate against R’s loess to ensure numerical equivalence (max diff <1e-12).
• Design the core as a layered, modular architecture with swappable components.
• Implement performance optimizations: parallelism via fastLoess and SIMD via wide crate.
• Create bindings for R, Python, Julia, Node.js, WebAssembly, C++, Go, and Java so all ecosystems use the same engine.
• Publish benchmarks and CI checks against R’s loess.

证据

The project validates against R's loess, and the README reports a maximum difference below 1e-12 across the test scenarios.

来源

On the project's benchmark harness against R's stats::loess, the README reports roughly 47x in serial mode and 236x in parallel mode.

来源