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arxiv: 2605.04068 · v1 · submitted 2026-04-12 · 💻 cs.LG · cs.AI

Designing a double deep reinforcement learning selection tool for resilient demand prediction

Pith reviewed 2026-05-10 15:43 UTC · model grok-4.3

classification 💻 cs.LG cs.AI
keywords deep reinforcement learningdemand forecastingmodel selectionsupply chainearly stoppingtime series prediction
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The pith

A double deep reinforcement learning agent automatically selects forecasting models from a committee at prediction time for demand data.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper proposes a double deep reinforcement learning architecture that learns to pick the best model from a forecasting committee dynamically when making predictions rather than fixing the choice in advance. It adds an early-stopping rule based on average reward convergence to shorten training. Tests on grocery sales and snack demand datasets indicate the approach holds up better or as well as existing methods. A reader would care because choosing the right forecasting model by hand is hard when datasets differ in their patterns, and automation could make supply chain planning more reliable. If the claim holds, reinforcement learning becomes a practical way to handle model selection without constant expert tuning.

Core claim

The central claim is that a double DRL agent can learn policies to choose forecasting models from a committee at the moment of prediction, paired with reward-based early stopping, and that this yields robust results on real grocery and snack demand datasets compared with prior selection techniques.

What carries the argument

The double deep reinforcement learning agent that decides which model from the forecasting committee to apply, guided by policies trained on prediction rewards.

If this is right

  • Selection occurs at prediction time instead of requiring a fixed choice before any data arrives.
  • The average-reward early-stopping shortens the training phase while preserving final performance.
  • The same selector architecture applies across grocery sales and snack demand data with consistent robustness gains.
  • No manual intervention is needed to switch models when dataset characteristics change.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The selector could be tested on other time-series tasks such as energy load or inventory forecasting to check broader usefulness.
  • Integrating the DRL selector with larger model committees might further improve resilience when data patterns shift suddenly.
  • The approach might lower the expertise barrier for companies that lack dedicated forecasting teams.

Load-bearing premise

The double DRL agent learns selection policies that work on new or unseen demand datasets without overfitting to the ones used for training.

What would settle it

Running the method on a fresh demand dataset from a different domain or time period and checking whether its accuracy or robustness falls below that of standard model-selection baselines.

Figures

Figures reproduced from arXiv: 2605.04068 by Ayoub Mcharek, Benoit Lardeux, Bilel Abderrahmane Benziane, Maher Jridi.

Figure 1
Figure 1. Figure 1: Double deep Q learning architecture. In Double Deep Q Learning (DDQN), the process involves several key elements: 1. Q-Networks: (a) Online Q-Network: This neural network estimates Q-values, which represent the expected cumulative rewards for taking various actions in the current state. It’s updated during the training process. 7 [PITH_FULL_IMAGE:figures/full_fig_p007_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: The suggested CRFFNN architecture. smoothing equation is given by equation (3): srt = 1 n nX−1 i=0 rt−i (3) where srt represents the smoothed reward point at time step t, n is the window size, and rt are the original reward points within the window centered around time step t. The second part involves the implementation of the actual early stopping mechanism, which incorporates a patience counter. This cou… view at source ↗
Figure 3
Figure 3. Figure 3: Average reward improvement rate based on early forecasting plot. [PITH_FULL_IMAGE:figures/full_fig_p011_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: The experimental setup. selected, this model is trained again on both the train and validation sets. The forecasting error is finally measured on the test data set. In both datasets, to fill in missing values, a straightforward substitution method was employed, replacing all missing values with zeros. In contrast to previous research highlighting the importance of unseasonalization [41], this study refrain… view at source ↗
Figure 5
Figure 5. Figure 5: MASE and SMAPE Errors for NN5 Dataset To validate the usefulness of the suggested early stopping methods ARIBES, The same suggested CRFFNN method is implemented with early stopping CRFFNN-ARIBES. The training time and forecast errors are summarized in [PITH_FULL_IMAGE:figures/full_fig_p016_5.png] view at source ↗
Figure 6
Figure 6. Figure 6: MASE and SMAPE Errors for Case Study Dataset [PITH_FULL_IMAGE:figures/full_fig_p018_6.png] view at source ↗
read the original abstract

The use of artificial intelligence in supply chain forecasting has attracted many scientific studies for several decades. However, the process of selecting an appropriate forecasting solution becomes a daunting task. This complexity arises due to the distinct features inherent to each dataset. Research to tackle this issue has been performed since the eighties but recent development of demand forecasting has opened new perspectives. This research aims to enhance automatic forecasting model selection by proposing a novel architecture that acts as a double deep reinforcement learning agent, selecting automatically a forecasting model from the forecasting committee at the time of prediction. Moreover, a novel early-stopping approach based on average reward convergence has been introduced to expedite training time. To evaluate the model's performance, an empirical study was conducted utilizing grocery sales datasets and snack demands datasets. The experimental results demonstrate the robustness of the proposed approach when compared to state-of-the-art methods.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 1 minor

Summary. The manuscript proposes a double deep reinforcement learning (DRL) agent that automatically selects a forecasting model from a committee at prediction time for demand forecasting in supply chains. It introduces a novel early-stopping criterion based on average reward convergence to accelerate training. The approach is evaluated empirically on grocery sales and snack demand datasets, with the central claim being that it demonstrates robustness relative to state-of-the-art methods.

Significance. If the robustness and generalization claims are substantiated, the work could offer a practical advance in automated, adaptive model selection for time-series demand forecasting, potentially improving resilience in supply-chain applications. The double-DRL selector and reward-convergence early stopping are conceptually interesting contributions that address a real operational pain point.

major comments (2)
  1. [Experimental results] Experimental results section: the abstract and evaluation description assert robustness on grocery sales and snack demand datasets versus SOTA, yet provide no details on experimental setup, chosen baselines, metrics, statistical significance testing, train/test splits, or any cross-dataset hold-out protocol. This leaves the central generalization claim unsupported and prevents assessment of whether the policy learns transferable selection rules or merely memorizes dataset-specific patterns.
  2. [Methodology] Methodology section: the double DRL architecture is presented at a high level without explicit definitions of state space, action space, reward function, or the interaction between the two agents. Absent these (or pseudocode/equations), it is impossible to verify the claimed novelty or to reproduce the selection policy.
minor comments (1)
  1. [Abstract] Abstract: the phrase 'robustness of the proposed approach' should be qualified with the specific metrics (e.g., MAE, RMSE, or selection accuracy) on which superiority is claimed.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for their thoughtful and constructive report. We address each major comment below and will revise the manuscript to provide the requested details, which we agree will improve clarity, reproducibility, and support for the central claims.

read point-by-point responses
  1. Referee: [Experimental results] Experimental results section: the abstract and evaluation description assert robustness on grocery sales and snack demand datasets versus SOTA, yet provide no details on experimental setup, chosen baselines, metrics, statistical significance testing, train/test splits, or any cross-dataset hold-out protocol. This leaves the central generalization claim unsupported and prevents assessment of whether the policy learns transferable selection rules or merely memorizes dataset-specific patterns.

    Authors: We agree that additional experimental details are required to fully substantiate the robustness and generalization claims. In the revised manuscript we will expand the Experimental Results section with: (i) a complete description of the experimental setup and data preprocessing; (ii) the full list of baselines (individual forecasters plus competing selection methods); (iii) the precise metrics (MAE, RMSE, MAPE) and any secondary measures; (iv) statistical significance testing (paired t-tests or Wilcoxon signed-rank tests with p-values); (v) explicit train/test split ratios, temporal ordering, and any cross-dataset hold-out protocol. These additions will allow readers to evaluate whether the double-DRL policy learns transferable selection rules across the grocery-sales and snack-demand domains. revision: yes

  2. Referee: [Methodology] Methodology section: the double DRL architecture is presented at a high level without explicit definitions of state space, action space, reward function, or the interaction between the two agents. Absent these (or pseudocode/equations), it is impossible to verify the claimed novelty or to reproduce the selection policy.

    Authors: We acknowledge that the current description of the double-DRL architecture is high-level. In the revised version we will add: (i) formal definitions of the state space (historical demand statistics, dataset meta-features, and prediction-time context), action space (discrete selection from the forecasting committee), and reward function (negative forecast error plus a small regularization term); (ii) the precise interaction protocol between the two agents (one performing model selection, the second providing auxiliary policy guidance); and (iii) pseudocode together with the key Q-learning or policy-gradient update equations. These additions will make the novelty of the average-reward-convergence early-stopping criterion and the overall architecture fully verifiable and reproducible. revision: yes

Circularity Check

0 steps flagged

No circularity: empirical proposal with no derivations or self-referential reductions

full rationale

The paper introduces a double deep reinforcement learning agent for automatic forecasting model selection and reports empirical results on grocery sales and snack demand datasets. No equations, derivations, or parameter-fitting steps appear in the abstract or described content. The central claim of robustness versus SOTA rests on experimental comparisons rather than any self-definitional loop, fitted input renamed as prediction, or load-bearing self-citation chain. The evaluation uses internal splits and early stopping but does not reduce any asserted generalization to a tautology by construction; therefore the derivation chain (such as it is) is self-contained and non-circular.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

No free parameters, axioms, or invented entities are described in the abstract; the approach appears to rely on standard RL components and existing forecasting models without new postulates.

pith-pipeline@v0.9.0 · 5451 in / 988 out tokens · 24422 ms · 2026-05-10T15:43:43.253138+00:00 · methodology

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