4 papers
Survey of Multimodal Geospatial Foundation Models: Techniques, Applications, and Challenges
Liling Yang, Ning Chen, Jun Yue +5
Foundation models have transformed natural language processing and computer vision, and their impact is now reshaping remote sensing image analysis. With powerful generalization an…
Traj-Transformer: Diffusion Models with Transformer for GPS Trajectory Generation
Zhiyang Zhang, Ningcong Chen, Xin Zhang +4
The widespread use of GPS devices has driven advances in spatiotemporal data mining, enabling machine learning models to simulate human decision making and generate realistic traje…
Adversarial Data Augmentation for Single Domain Generalization via Lyapunov Exponent-Guided Optimization
Zuyu Zhang, Ning Chen, Yongshan Liu +2
Single Domain Generalization (SDG) aims to develop models capable of generalizing to unseen target domains using only one source domain, a task complicated by substantial domain sh…
Improving Ad matching via Cluster-Adaptive Keyword Expansion and Relevance tuning
Dipanwita Saha, Anis Zaman, Hua Zou +4
In search advertising, keyword matching connects user queries with relevant ads. While token-based matching increases ad coverage, it can reduce relevance due to overly permissive…