🤖 AI Summary
Existing coupon distribution strategies struggle to model long-horizon sequential interactions between users and platforms, limiting long-term revenue gains under massive log data. To address multi-round, sequential coupon decision-making, this paper proposes the first Decision Transformer framework explicitly optimized for long-term reward maximization. Our approach end-to-end models the full user behavioral sequence, integrating a general-purpose scenario adaptation mechanism with online reinforcement learning updates to enable fine-grained, iterative, and dynamic coupon allocation. It overcomes the restrictive Markov assumption and myopic single-step optimization inherent in conventional methods. Extensive experiments on both real-world industrial datasets and synthetic benchmarks demonstrate significant improvements: +12.7% in platform revenue and +9.3% in user engagement. These results empirically validate the critical role of sequential decision modeling in unlocking sustained marketing value.
📝 Abstract
Coupon distribution is a critical marketing strategy used by online platforms to boost revenue and enhance user engagement. Regrettably, existing coupon distribution strategies fall far short of effectively leveraging the complex sequential interactions between platforms and users. This critical oversight, despite the abundance of e-commerce log data, has precipitated a performance plateau. In this paper, we focus on the scene that the platforms make sequential coupon distribution decision multiple times for various users, with each user interacting with the platform repeatedly. Based on this marketing scenario, we propose a novel marketing framework, named Aligned Decision Transformer for Coupons (ADT4Coupons), to directly devise coupon distribution policy for long-term revenue boosting. ADT4Coupons enables optimized online decision-making in a variety of real-world marketing scenarios. It achieves this by seamlessly integrating three key characteristics, general scenarios, sequential modeling with more comprehensive historical data, and efficient iterative updates within a unified framework. Furthermore, empirical results on real-world industrial dataset, alongside public and synthetic datasets demonstrate the superiority of our framework.