4 papers
SemReuse: Certified Reuse of Cached Natural-Language Views for Semantic Operators
Phat T. Tran-Truong, Tung Kieu, Xuan-Bach Le +4
Semantic operators allow users to filter unstructured data using conditions expressed in natural language, but existing systems typically invoke an LLM for every input tuple. Analy…
NOWJ@COLIEE 2026: Adaptive Pipelines for Legal Retrieval and Reasoning
Thuong-Hieu Ngo, Hoang-Trung Nguyen, Huu-Dong Nguyen +5
This paper presents the methodologies and results of the NOWJ team's participation across all five tasks of the COLIEE 2026 competition. For Task 1 (Legal Case Retrieval), we propo…
DeltaMerge-LowRes: Composing Language and Task Deltas for Low-Resource Adaptation
Son Ha Xuan, Xuan-Bach Le, Phat T. Tran-Truong
Adapting a multilingual encoder to a new language \emph{and} a new task with only a few hundred gold examples is a common low-resource NLP setting, yet the two axes are usually fus…
Reinforcement Learning with LTL and -Regular Objectives via Optimality-Preserving Translation to Average Rewards
Xuan-Bach Le, Dominik Wagner, Leon Witzman +2
Linear temporal logic (LTL) and, more generally, -regular objectives are alternatives to the traditional discount sum and average reward objectives in reinforcement learning (RL…