Generative Sequential Notification Optimization via Multi-Objective Decision Transformers

Fuente: arXiv
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Auteurs principaux: Ocejo, Borja, Wang, Ruofan, Liu, Ke, Patra, Rohit K., Shen, Haotian, Liu, David, Yuan, Yiwen, Mohanasundaram, Gokulraj, Borisyuk, Fedor, Prabhakar, Prakruthi
Format: Preprint
Publié: 2025
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author Ocejo, Borja
Wang, Ruofan
Liu, Ke
Patra, Rohit K.
Shen, Haotian
Liu, David
Yuan, Yiwen
Mohanasundaram, Gokulraj
Borisyuk, Fedor
Prabhakar, Prakruthi
author_facet Ocejo, Borja
Wang, Ruofan
Liu, Ke
Patra, Rohit K.
Shen, Haotian
Liu, David
Yuan, Yiwen
Mohanasundaram, Gokulraj
Borisyuk, Fedor
Prabhakar, Prakruthi
contents Notifications are an important communication channel for delivering timely and relevant information. Optimizing their delivery involves addressing complex sequential decision-making challenges under constraints such as message utility and user fatigue. Offline reinforcement learning (RL) methods, such as Conservative Q-Learning (CQL), have been applied to this problem but face practical challenges at scale, including instability, sensitivity to distribution shifts, limited reproducibility, and difficulties with explainability in high-dimensional recommendation settings. We present a Decision Transformer (DT) based framework that reframes policy learning as return-conditioned supervised learning, improving robustness, scalability, and modeling flexibility. Our contributions include a real-world comparison with CQL, a multi-reward design suitable for non-episodic tasks, a quantile regression approach to return-to-go conditioning, and a production-ready system with circular buffer-based sequence processing for near-real-time inference. Extensive offline and online experiments in a deployed notification system show that our approach improves notification utility and overall session activity while minimizing user fatigue. Compared to a multi-objective CQL-based agent, the DT-based approach achieved a +0.72% increase in sessions for notification decision-making at LinkedIn by making notification recommendation more relevant.
format Preprint
id arxiv_https___arxiv_org_abs_2509_02458
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Generative Sequential Notification Optimization via Multi-Objective Decision Transformers
Ocejo, Borja
Wang, Ruofan
Liu, Ke
Patra, Rohit K.
Shen, Haotian
Liu, David
Yuan, Yiwen
Mohanasundaram, Gokulraj
Borisyuk, Fedor
Prabhakar, Prakruthi
Machine Learning
Artificial Intelligence
Notifications are an important communication channel for delivering timely and relevant information. Optimizing their delivery involves addressing complex sequential decision-making challenges under constraints such as message utility and user fatigue. Offline reinforcement learning (RL) methods, such as Conservative Q-Learning (CQL), have been applied to this problem but face practical challenges at scale, including instability, sensitivity to distribution shifts, limited reproducibility, and difficulties with explainability in high-dimensional recommendation settings. We present a Decision Transformer (DT) based framework that reframes policy learning as return-conditioned supervised learning, improving robustness, scalability, and modeling flexibility. Our contributions include a real-world comparison with CQL, a multi-reward design suitable for non-episodic tasks, a quantile regression approach to return-to-go conditioning, and a production-ready system with circular buffer-based sequence processing for near-real-time inference. Extensive offline and online experiments in a deployed notification system show that our approach improves notification utility and overall session activity while minimizing user fatigue. Compared to a multi-objective CQL-based agent, the DT-based approach achieved a +0.72% increase in sessions for notification decision-making at LinkedIn by making notification recommendation more relevant.
title Generative Sequential Notification Optimization via Multi-Objective Decision Transformers
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2509.02458