papers

Publications (10)

cs.CL2023

To Copy Rather Than Memorize: A Vertical Learning Paradigm for Knowledge Graph Completion

Rui Li, Xu Chen, Chaozhuo Li +8

Embedding models have shown great power in knowledge graph completion (KGC) task. By learning structural constraints for each training triple, these methods implicitly memorize int…

cs.IR2022

Uni-Retriever: Towards Learning The Unified Embedding Based Retriever in Bing Sponsored Search

Jianjin Zhang, Zheng Liu, Weihao Han +9

Embedding based retrieval (EBR) is a fundamental building block in many web applications. However, EBR in sponsored search is distinguished from other generic scenarios and technic…

cs.IR2022

Distill-VQ: Learning Retrieval Oriented Vector Quantization By Distilling Knowledge from Dense Embeddings

Shitao Xiao, Zheng Liu, Weihao Han +10

Vector quantization (VQ) based ANN indexes, such as Inverted File System (IVF) and Product Quantization (PQ), have been widely applied to embedding based document retrieval thanks…

cs.CV2025

RePrompt: Reasoning-Augmented Reprompting for Text-to-Image Generation via Reinforcement Learning

Mingrui Wu, Lu Wang, Pu Zhao +14

Despite recent progress in text-to-image (T2I) generation, existing models often struggle to faithfully capture user intentions from short and under-specified prompts. While prior…

cs.LG2025

When Graph meets Multimodal: Benchmarking and Meditating on Multimodal Attributed Graphs Learning

Hao Yan, Chaozhuo Li, Jun Yin +6

Multimodal Attributed Graphs (MAGs) are ubiquitous in real-world applications, encompassing extensive knowledge through multimodal attributes attached to nodes (e.g., texts and ima…

cs.IR2022

Progressively Optimized Bi-Granular Document Representation for Scalable Embedding Based Retrieval

Shitao Xiao, Zheng Liu, Weihao Han +9

Ad-hoc search calls for the selection of appropriate answers from a massive-scale corpus. Nowadays, the embedding-based retrieval (EBR) becomes a promising solution, where deep lea…