Files
foxhunt/crates/ml
jgrusewski 10d88e1b2a fix: mamba2_backward used grad_buf (params) not bw_d_h_s2 (trunk activation gradient)
mamba2_scan_backward kernel reads d_h_enriched [B, SH2] but was passed
self.grad_buf [TOTAL_PARAMS] — wrong buffer, wrong size. At batch_size=4096
the kernel read 1M floats from a 582K buffer → 2749 OOB reads.
Fixed: use self.bw_d_h_s2 [B, SH2] which is the actual trunk activation
gradient from the cuBLAS backward pass.

Also increased smoke test batch_size to 4096 to catch scale-dependent OOB.

compute-sanitizer: 0 errors at batch_size=4096.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-16 00:27:17 +02:00
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ml

10-model ML ensemble for the Foxhunt HFT system, built on Candle v0.9.1.

Models

  • DQN (Rainbow) — deep Q-network with prioritized replay, dueling heads, noisy nets
  • PPO — proximal policy optimization with GAE, LSTM policies, clip-higher
  • TFT — temporal fusion transformer for multi-horizon forecasting
  • Mamba2 — state space model for sequence prediction
  • Liquid Networks — biologically inspired networks for non-stationary data
  • TLOB — transformer-based limit order book analysis
  • KAN — Kolmogorov-Arnold networks
  • xLSTM — extended LSTM architecture
  • TGGN — temporal graph neural network
  • Diffusion — diffusion-based generative model

Key Modules

  • ensemble — model ensemble coordination and confidence aggregation
  • hyperopt — PSO-based hyperparameter optimization with per-model adapters
  • trainers — unified training loops (DQN, PPO, supervised)
  • inferenceInferenceAdapter trait for prediction
  • checkpoint — model checkpointing and restoration
  • evaluation — walk-forward evaluation pipeline

Usage

use ml::dqn::DQN;
use ml::ppo::PpoTrainer;