collaborators

5 papers

cs.CR2026

Token-Flow Firewall: Semantic Runtime Auditing for Persistent AI Agents

Puji Wang, Yingchen Zhang, Ruqing Zhang +2

Persistent AI agents extend large language models (LLMs) beyond single-turn interaction into long-lived software systems. Unlike traditional chat assistants, unsafe content in thes…

cs.RO2026

G-DRAGON: Geospatial Reasoning and Dynamic Planning for Retrieval-Augmented Outdoor Navigation

Dongzhihan Wang, Yi Du, Jianan Sun +5

Autonomous ground robots operating in large-scale outdoor environments require both robust long-range navigation and fine-grained ''last-mile'' exploration. Current advances in vis…

cs.IR2025

Does Generative Retrieval Overcome the Limitations of Dense Retrieval?

Yingchen Zhang, Ruqing Zhang, Jiafeng Guo +3

Generative retrieval (GR) has emerged as a new paradigm in neural information retrieval, offering an alternative to dense retrieval (DR) by directly generating identifiers of relev…

cs.IR2025

C2T-ID: Converting Semantic Codebooks to Textual Document Identifiers for Generative Search

Yingchen Zhang, Ruqing Zhang, Jiafeng Guo +4

Designing document identifiers (docids) that carry rich semantic information while maintaining tractable search spaces is a important challenge in generative retrieval (GR). Popula…

cs.IR2025

Retrieval-in-the-Chain: Bootstrapping Large Language Models for Generative Retrieval

Yingchen Zhang, Ruqing Zhang, Jiafeng Guo +3

Generative retrieval (GR) is an emerging paradigm that leverages large language models (LLMs) to autoregressively generate document identifiers (docids) relevant to a given query.…