Journal of Systems Engineering and Information Technology
Vol. 4 No. 3 (2025)

Dynamic Action Masking and Priority Experience Replay in Deep Reinforcement Learning News Recommenders

Yang Zhijie (Qinghai Normal University)



Article Info

Publish Date
31 Dec 2025

Abstract

News consumption differs from stable-preference domains: relevance decays within hours and user interest shifts non-sequentially across sessions, motivating deep reinforcement learning (DRL) approaches that plan for sequential engagement rather than static next-click accuracy. A recent proposal, dynamic action-masking deep reinforcement learning (DAMDRL), combines a three-channel GRU state encoder, a TD-error-weighted priority experience cache, and a per-step action mask within a double deep Q-network to address this setting, reporting NDCG@10 and MRR@10 gains over plain DQN and three supervised neural baselines. Independent audits of the wider DRL-recommendation literature, however, have found that a substantial share of such reported gains are not independently reproducible, and in some cases originate from incidental representation-learning effects rather than genuine policy improvement. This paper re-examines the DAMDRL proposal against that critical literature. We restructure the described method into an explicit pipeline and identify eleven specific items — dataset identity, hyperparameters, and training protocol among them — required for replication but absent from the original report. We recompute every comparative and ablation result as explicit percentage deltas, finding NDCG@10 gains of 243–333% over an SVD++ floor and 18–26% losses when priority caching or loop-avoidance exploration is ablated. These patterns are consistent with, but do not rule out, an upstream representation-learning explanation raised by recent reassessment studies of comparable frameworks. We conclude that DAMDRL's central claim is numerically consistent with its own tables but not yet independently verifiable, and provide a reporting checklist to close that gap.

Copyrights © 2025






Journal Info

Abbrev

JOSEIT

Publisher

Subject

Computer Science & IT

Description

International Journal of Systems Engineering and Information Technology (JOSEIT) is an international journal published by Ikatan Ahli Informatika Indonesia (IAII / Association of Indonesian Informatics Experts). The research article submitted to this online journal will be peer-reviewed. The ...