3 papers
cs.IR2026
Fenced Citation-Context Retrieval for Case Law: Temporal Leakage and Degree Control Across Two Jurisdictions
Yao Liu, Tien-Ping Tan, Zhilan Liu
Prior case retrieval (PCR) aims to identify the precedent cases relevant to the facts of a query case. Incoming citation context, the text with which later cases characterize a cas…
cs.IR2026
Charge as a Construct-Validity Factor in Chinese Legal Case Retrieval: A Cross-Benchmark Audit
Yao Liu, Tien-Ping Tan, Zhilan Liu
Chinese Legal Case Retrieval (LCR) benchmarks grade a reference judgment relevant when its legal characterization matches the query, and strong systems now reach NDCG@10 of 0.85-0.…
cs.SI2025
Multi-Order Hyperbolic Graph Convolution and Aggregated Attention for Social Event Detection
Yao Liu, Zhilan Liu, Tien Ping Tan +1
Social event detection (SED) is a task focused on identifying specific real-world events and has broad applications across various domains. It is integral to many mobile applicatio…