Files
foxhunt/crates/ml
jgrusewski d6e8131d66 refactor(dqn-v2): Task 4 gap-fix — missed sites + Rust mirror
Follow-up to Plan 1 Task 4 sub-commits 4A-4F. Addresses 3 issues
surfaced by code review:

1. experience_kernels.cu:1148-1152 — 4 raw literals missed by Task 4A/4E
   sed sweep (the block uses portfolio_states[ps_base_plan + N] syntax
   rather than ps[N], so sed targeting \bps\[ didn't match).
   Fixes: ps_base_plan + 23 -> PS_PLAN_TARGET_BARS, + 0 -> PS_POSITION,
          dir_idx = 2 -> DIR_LONG, dir_idx = 0 -> DIR_SHORT.

2. experience_kernels.cu:1194 — flat_idx = 3 replaced with DIR_FLAT.

3. crates/ml-core/src/state_layout.rs — Rust mirror added for every
   Task 4 constant (PS_*, PLAN_ISV_*, PLAN_PARAM_*, BRANCH_*, DIR_*,
   MAG_*) matching cuh byte-for-byte. Closes the half-applied Invariant
   8 gap for the Rust side.

No behavioural change. Pure refactor.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-24 11:37:00 +02:00
..

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;