Yuankai Wu
Author directory2026
GeoGR²: Zero-Shot Geospatial Inference via Geostatistically-Guided Iterative Refinement with LLMs
Jinfan Tang | Kunming Wu | Xieruifeng Gong | Yuya He | Hu Jie | Wu Junhui | Yuankai Wu
Findings of the Association for Computational Linguistics: EMNLP 2026
Jinfan Tang | Kunming Wu | Xieruifeng Gong | Yuya He | Hu Jie | Wu Junhui | Yuankai Wu
Findings of the Association for Computational Linguistics: EMNLP 2026
Standard large language model prompting treats geospatial inference as independent, instance-wise prediction, ignoring the fundamental spatial dependencies that govern geographic reality. Consequently, even advanced models struggle with spatial consistency and exhibit severe biases toward populous regions. To bridge this gap, we propose **GeoGR²** (**Geo**spatial **G**raph **R**efine **R**easoning), a framework that formalizes zero-shot geospatial prediction as an iterative message-passing process on a dynamically constructed graph. Unlike static retrieval methods, GeoGR² instantiates three dynamic operators via collaborating operators: (1) a **Topology Operator** that constructs graph topology to enforce the Spatial Markov property; (2) a **Feature Operator** that enriches nodes with task-relevant semantic covariates; and (3) an **Update Operator** that performs natural language message passing to iteratively minimize spatial discrepancy. Theoretically, we frame this refinement as a contraction mapping that approximates the fixed point of a global consistency equation. Empirically, we validate GeoGR² on diverse physical and socioeconomic tasks. Results demonstrate that by explicitly embedding geostatistical inductive biases, GeoGR² significantly outperforms standard prompting baselines, while effectively mitigating systematic geographic bias. Our framework leverages large language models’ intrinsic capacity for understanding spatial correlations through explicit topological scaffolding, without resorting to general graph reasoning paradigms.
DMSD: Dual-Modal Semantic Disentanglement for Compositional Zero-Shot Learning
Pan Yang | Jing Yang | Ruan Xiao li | Yuling Chen | Yuankai Wu | Quan Zhou | Xu Wang
Findings of the Association for Computational Linguistics: ACL 2026
Pan Yang | Jing Yang | Ruan Xiao li | Yuling Chen | Yuankai Wu | Quan Zhou | Xu Wang
Findings of the Association for Computational Linguistics: ACL 2026
The core challenge of Compositional Zero-Shot Learning (CZSL) lies in learning representations of sub-concepts (attributes and objects) from seen compositions and recognizing unseen novel compositions. Most existing CZSL methods primarily focus on prompt optimization on the textual side, while overlooking insufficient visual attribute–object sub-concepts disentanglement under a text-centric paradigm. To this end, we propose DMSD, a Dual-Modal Semantic Disentanglement framework that jointly models visual and textual information to achieve effective sub-concept disentanglement. Specifically, DMSD introduces a Contextual Prompt Space, enabling both visual and textual modalities to be modeled under unified contextual semantic representations, thereby enhancing their alignment at the latent semantic level. Moreover, we design Visual Sub-concept Prototypes that explicitly extract and model visual sub-concept features, improving the independence and discriminability of visual sub-concept representations. Furthermore, to achieve fine-grained alignment between visual and textual sub-concepts, we propose a Class-Centroid Bridging Module that guides class centroids toward the textual semantic space, thereby ensuring cross-modal semantic consistency. Extensive experiments on three benchmark datasets (MIT-States, UT-Zappos, and C-GQA) demonstrate that DMSD achieves state-of-the-art performance in both closed-world and open-world settings. Our code is available at https://anonymous.4open.science/r/DMSD-9CC4.