2 papers
econ.EM2026
The Harmonic Synthetic Control Method
Ziyi Liu, Yiqing Xu
Synthetic control methods can produce misleading counterfactual predictions when outcome series contain unit-specific stochastic trends, a common feature of nonstationary macroecon…
cs.CV2025
Length Matters: Length-Aware Transformer for Temporal Sentence Grounding
Yifan Wang, Ziyi Liu, Xiaolong Sun +2
Temporal sentence grounding (TSG) is a highly challenging task aiming to localize the temporal segment within an untrimmed video corresponding to a given natural language descripti…