3 papers
cs.AI2025
Exploring the Paradigm Shift from Grounding to Skolemization for Complex Query Answering on Knowledge Graphs
Yuyin Lu, Hegang Chen, Shanrui Xie +4
Complex Query Answering (CQA) over incomplete Knowledge Graphs (KGs), typically formalized as reasoning with Existential First-Order predicate logic with one free variable (EFO\tex…
cs.LG2025
scE2TM improves single-cell embedding interpretability and reveals cellular perturbation signatures
Hegang Chen, Yuyin Lu, Yifan Zhao +5
Single-cell RNA sequencing technologies have revolutionized our understanding of cellular heterogeneity, yet computational methods often struggle to balance performance with biolog…
cs.CL2024
Self-supervised Topic Taxonomy Discovery in the Box Embedding Space
Yuyin Lu, Hegang Chen, Pengbo Mao +4
Topic taxonomy discovery aims at uncovering topics of different abstraction levels and constructing hierarchical relations between them. Unfortunately, most of prior work can hardl…