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wifi-densepose/rust-port/wifi-densepose-rs/crates/wifi-densepose-train/README.md
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# wifi-densepose-train
[![Crates.io](https://img.shields.io/crates/v/wifi-densepose-train.svg)](https://crates.io/crates/wifi-densepose-train)
[![Documentation](https://docs.rs/wifi-densepose-train/badge.svg)](https://docs.rs/wifi-densepose-train)
[![License](https://img.shields.io/crates/l/wifi-densepose-train.svg)](LICENSE)
Complete training pipeline for WiFi-DensePose, integrated with all five ruvector crates.
## Overview
`wifi-densepose-train` provides everything needed to train the WiFi-to-DensePose model: dataset
loading, subcarrier interpolation, loss functions, evaluation metrics, and the training loop
orchestrator. It supports both the MM-Fi dataset (NeurIPS 2023) and deterministic synthetic data
for reproducible experiments.
Without the `tch-backend` feature the crate still provides the dataset, configuration, and
subcarrier interpolation APIs needed for data preprocessing and proof verification.
## Features
- **MM-Fi dataset loader** -- Reads the MM-Fi multimodal dataset (NeurIPS 2023) from disk with
memory-mapped `.npy` files.
- **Synthetic dataset** -- Deterministic, fixed-seed CSI generation for unit tests and proofs.
- **Subcarrier interpolation** -- 114 -> 56 subcarrier compression via `ruvector-solver` sparse
interpolation with variance-based selection.
- **Loss functions** (`tch-backend`) -- Pose estimation losses including MSE, OKS, and combined
multi-task loss.
- **Metrics** (`tch-backend`) -- PCKh, OKS-AP, and per-keypoint evaluation with
`ruvector-mincut`-based person matching.
- **Training orchestrator** (`tch-backend`) -- Full training loop with learning rate scheduling,
gradient clipping, checkpointing, and reproducible proofs.
- **All 5 ruvector crates** -- `ruvector-mincut`, `ruvector-attn-mincut`,
`ruvector-temporal-tensor`, `ruvector-solver`, and `ruvector-attention` integrated across
dataset loading, metrics, and model attention.
### Feature flags
| Flag | Default | Description |
|---------------|---------|----------------------------------------|
| `tch-backend` | no | Enable PyTorch training via `tch-rs` |
| `cuda` | no | CUDA GPU acceleration (implies `tch`) |
### Binaries
| Binary | Description |
|--------------------|------------------------------------------|
| `train` | Main training entry point |
| `verify-training` | Proof verification (requires `tch-backend`) |
## Quick Start
```rust
use wifi_densepose_train::config::TrainingConfig;
use wifi_densepose_train::dataset::{SyntheticCsiDataset, SyntheticConfig, CsiDataset};
// Build and validate config
let config = TrainingConfig::default();
config.validate().expect("config is valid");
// Create a synthetic dataset (deterministic, fixed-seed)
let syn_cfg = SyntheticConfig::default();
let dataset = SyntheticCsiDataset::new(200, syn_cfg);
// Load one sample
let sample = dataset.get(0).unwrap();
println!("amplitude shape: {:?}", sample.amplitude.shape());
```
## Architecture
```text
wifi-densepose-train/src/
lib.rs -- Re-exports, VERSION
config.rs -- TrainingConfig, hyperparameters, validation
dataset.rs -- CsiDataset trait, MmFiDataset, SyntheticCsiDataset, DataLoader
error.rs -- TrainError, ConfigError, DatasetError, SubcarrierError
subcarrier.rs -- interpolate_subcarriers (114->56), variance-based selection
losses.rs -- (tch) MSE, OKS, multi-task loss [feature-gated]
metrics.rs -- (tch) PCKh, OKS-AP, person matching [feature-gated]
model.rs -- (tch) Model definition with attention [feature-gated]
proof.rs -- (tch) Deterministic training proofs [feature-gated]
trainer.rs -- (tch) Training loop orchestrator [feature-gated]
```
## Related Crates
| Crate | Role |
|-------|------|
| [`wifi-densepose-signal`](../wifi-densepose-signal) | Signal preprocessing consumed by dataset loaders |
| [`wifi-densepose-nn`](../wifi-densepose-nn) | Inference engine that loads trained models |
| [`ruvector-mincut`](https://crates.io/crates/ruvector-mincut) | Person matching in metrics |
| [`ruvector-attn-mincut`](https://crates.io/crates/ruvector-attn-mincut) | Attention-weighted graph cuts |
| [`ruvector-temporal-tensor`](https://crates.io/crates/ruvector-temporal-tensor) | Compressed CSI buffering in datasets |
| [`ruvector-solver`](https://crates.io/crates/ruvector-solver) | Sparse subcarrier interpolation |
| [`ruvector-attention`](https://crates.io/crates/ruvector-attention) | Spatial attention in model |
## License
MIT OR Apache-2.0