arrow-ml vs ghost-flow vs arrow-ml-activations

Optimized tensor operations and machine learning primitives for Apache Arrow.

Complete machine learning framework in Rust - tensors, neural networks, 85+ ML algorithms, GPU acceleration, WASM, FFI, model serving, compiler optimizations, distributed training, and 8 hardware accelerators - all included by default

Neural network activation functions (ReLU, GELU, Sigmoid, SiLU, Tanh, Softmax) for Apache Arrow arrays.