collaborators

5 papers

cs.GT2026

HMAF: A Hierarchical Multi-Slot GD-RTB Allocation Framework

Tianxing Bu, Zhaoqi Zhang, Linyou Cai +7

In modern online advertising platforms, Guaranteed Delivery (GD) contracts coexist and bid with Real-Time Bidding (RTB) auctions. Recent approaches either decouple GD and RTB optim…

cs.LG2026

CausalPOI: Spatio-Temporal Graph-Based Causal Modeling for Cold-Start POI Check-in Forecasting

Zhaoqi Zhang, Miao Xie, Yi Li +3

As urban environments continue to evolve rapidly, accurately modeling the dynamic behaviour of Points of Interest is essential for supporting data-driven urban planning and commerc…

cs.LG2026

Beyond Single Slot: Joint Optimization for Multi-Slot Guaranteed Display Advertising

Zhaoqi Zhang, Jiaming Deng, Miao Xie +5

Guaranteed display advertising is crucial for platform monetization, yet existing methods often operate under a single-slot assumption, limiting their ability to optimize allocatio…

cs.CL2026

Bridging Reasoning and Action: Hybrid LLM-RL Framework for Efficient Cross-Domain Task-Oriented Dialogue

Yangyang Zhao, Linfan Dai, Li Cai +2

Cross-domain task-oriented dialogue requires reasoning over implicit and explicit feasibility constraints while planning long-horizon, multi-turn actions. Large language models (LL…

cs.LG2025

Generative Large-Scale Pre-trained Models for Automated Ad Bidding Optimization

Yu Lei, Jiayang Zhao, Yilei Zhao +4

Modern auto-bidding systems are required to balance overall performance with diverse advertiser goals and real-world constraints, reflecting the dynamic and evolving needs of the i…