34th ACM SIGSPATIAL

ACM SIGSPATIAL 2026 - Accepted Short Papers

• NADA-LA: A Benchmark for Spatial Address Data Quality Analysis [experiments]
  Yiyang Bian (University of California, Riverside), Amr Magdy (University of California, Riverside; Qatar Computing Research Institute (QCRI), HBKU) and Amr Magdy (University of California, Riverside)

• Toward A Data-driven Cyberinfrastructure Tool for Urban Micromobility-Friendly Path Planning: A Hartford Study
  Annette Grabowski (University of Connecticut) and Suining He (University of Connecticut)

• Uncertainty-Aware Multi-modality Spatio-temporal Wildfire and Smoke Prediction
  Yuanheng Zhang (University of California, Riverside), Chenguang Yang (University of California, Riverside), Nicholas LaHaye (Spatial Informatics Group), Huikyo Lee (Jet Propulsion Laboratory), Yulia R. Gel (Virginia Tech) and Yuzhou Chen (University of California, Riverside)

• MESSY STREETS: A benchmark for Geocoding Real-World Addresses [experiments].
  Edward Gaere (ETH Zurich) and Florian Wangenheim (ETH Zürich)

• SAMA: Spatial Question Answering over Maps of Attractions [Experiments]
  Alhassan Satii Mustafa Alshareedah (University of California, Riverside), Amr Magdy (Qatar Computing Research Institute), Salma Moustafa (Alexandria University), Yubin Zhen (University of California, Riverside), Sayantika Nag (University of California, Riverside), Zainab Almeraj (Kuwait University), Dari Alhuwail (Kuwait University) and Amr Magdy (University of California, Riverside)

• Coordinate-Level Understanding of Geospatial Embeddings
  Leonardo Teixeira (Universidade Federal de Minas Gerais (UFMG)), Renato Assuncao (Universidade Federal de Minas Gerais (UFMG)) and Henrique Carvalho (Universidade Federal de Minas Gerais (UFMG))

• Starlet: An End-to-End Python Library for Scalable Geospatial Tiling and Vector-Tile Serving
  Tarlan Bahadori (University of California, Riverside), Ahmed Eldawy (University of California, Riverside), Rohan Bennur (University of California, Riverside), Shaolin Xie (University of Southern California) and Ibrahim Sabek (University of Southern California)

• Interstate-Augmented County Graphs for Opioid Overdose Mortality Rate Prediction
  Minghua Wang (University of Tennessee, Knoxville), Elisha Brooks (University of Tennessee, Knoxville), Bernardo Ameneyro (University of Tennessee, Knoxville), Adam Spannaus (Oak Ridge National Laboratory) and Vasileios Maroulas (University of Tennessee, Knoxville)

• Plan2PolySeq : Floor Plan Reconstruction with Token-Conditioned Refinement
  Alan Wang (University of Maryland, College Park), Faizan Wajid (University of Maryland, College Park), Mara Cai (University of Maryland, College Park) and Ashok Agrawala (University of Maryland, College Park)

• Disentangling Neural Predictor Design and Domain Constraints in Multi-Agent Counterfactual Prediction [experiments]
  Yuuki Tachioka (Denso IT Laboratory)

• Benchmarking Geospatial Foundation Models for Agriculture Applications
  Sanmay Das (University of California, Riverside), Zhuocheng Shang (University of California, Riverside) and Ahmed Eldawy (University of California, Riverside)

• A Permutation-based Non-sequential Diffusion Model for Solving Constrained VRP
  Riku Nakao (The University of Osaka), Akihito Hiromori (The University of Osaka), Hamada Rizk (The University of Osaka, RIKEN Center for Computational Science, Tanta University) and Hirozumi Yamaguchi (The University of Osaka, RIKEN Center for Computational Science)

• Earth System World Model for What-If Simulations: A Case Study for Terrestrial Ecosystems
  Zhihao Wang (University of Maryland), Ruichen Wang (University of Maryland College Park), Ruohan Li (University of Maryland, College Park), Lei Ma (University of Maryland), George Hurtt (University of Maryland), Xiaowei Jia (Rutgers University), Gengchen Mai (University of Texas at Austin), Shaowen Wang (University of Illinois Urbana-Champaign) and Yiqun Xie (University of Maryland, College Park)

• TEMPO: Physics-Informed Urban Flow Simulation via Velocity-Driven Latent Flow Matching
  Han-Chi Chen (National Chung Hsing University, Department of computer science and engineering), Wei-Zhi Wang (National Chung Hsing University, Department of computer science and engineering), Chi-Tsun Lin (National Chung Hsing University, Department of computer science and engineering) and Yi-Chung Chen (National Chung Hsing University, Department of computer science and engineering)

• Topology-Aware Interpretable Diffusion Model for Metro Passenger Flow Prediction and Spatio-Temporal Attribution: A Case Study of the Taipei Radial Rail Network
  Shih-Chi Wang (Bachelor Program in Intellectual Creativity Engineering, National Chung Hsing University), Po-Yen Lin (Bachelor Program in Intellectual Creativity Engineering, National Chung Hsing University) and Yi-Chung Chen (Department of Computer Science and Engineering, National Chung Hsing University)

• Quantifying Space-Time Interaction with Predictive Dependence
  Francisco Tinoco-Junior (Departamento de Ciencia da Computacao, UFMG) and Renato Assuncao (ESRI and UFMG)

• Even Faster Geosocial Reachability Queries
  Rick van der Heijden (Technical University of Eindhoven), Thekla Hamm (Technical University of Eindhoven) and Nikolay Yakovets (Technical University of Eindhoven)

• SceneAdapter: Boosting Time Series Foundation Models for Atypical-Scenario Traffic Flow Forecasting
  Han Fu (Baidu, Inc), Dongdong Geng (Baidu, Inc), Yu Mei (Baidu, Inc) and Fei Yang (Baidu, Inc.)

• ShapeToVec+: A Memory and Query-Efficient System for Weighted-Jaccard Search over Large-scale Polygon Collections
  Buddhi Ashan Mallika Kankanamalage (The University of Texas at San Antonio), Ruban Sampath (The University of Texas at San Antonio) and Sushil K. Prasad (University of Texas at San Antonio)

• Subregion-Calibrated Graph Neural Emulation for Transferable Soil Carbon Lateral Redistribution Modeling
  Ruolei Zeng (University of Minnesota Twin Cities), Eduardo Luquin Oroz (University of Minnesota), David Mulla (University of Minnesota, Twin Cities) and Shashi Shekhar (University of Minnesota, Twin Cities)

• Can LLMs Infer Spatial Distance Decay? A Distribution-Mediated Zero-Shot Approach
  Yuwei Song (The University of Tokyo), Yanbo Pang (University College London London, United Kingdom), Ziheng Liu (The University of Tokyo), Fuko Nakai (Center for Spatial Information Science, University of Tokyo) and Yoshihide Sekimoto (Center for Spatial Information Science, University of Tokyo)

• Electronic Navigational Chart Change Classification [experiments]
  Jacob Arndt (Oak Ridge National Laboratory), Abhishek Potnis (Oak Ridge National Laboratory) and Alex Sorokine (Oak Ridge National Laboratory)

• Don't Learn Your Compression: A Random-Projection Control for Cross-Lingual OD Transfer
  Khloe Jiang (Independent Researcher)

• A Shared index for Heterogeneous Polar Datasets [experiments]
  Ana Elena Uribe (University of Minnesota) and Mohamed F. Mokbel (University of Minnesota)

• BEACON: Behavioral and Semantic Enrichment of AlphaEarth Embeddings through Tri-Modal Contrastive Learning
  Hao Tian (Department of Geography, Texas A&M University), Heng Cai (Department of Geography, Texas A&M University) and Yifan Yang (Department of Geography, Texas A&M University)

• [Experiment] Less is More? Evaluating Geospatial Foundation Models for Soil Geochemistry Prediction Under Limited Labels
  Ping-Chun Lin (University of Washington) and Akshay Mehra (University of Washington)

• Overhead Imagery as a Spatial Prior for Fine-Grained Hourly Stay and Movement Surfaces
  Zhixiong Chen (KDDI Research, Inc.), Shigeki Muramatsu (KDDI Research, Inc.), Daisuke Kamisaka (KDDI Research, Inc.) and Mizuki Miura (KDDI Research, Inc.)

• 3D Spatial Pattern Matching
  Nicole Schneider (University of Maryland), Avik Das (University of Maryland), Lukas Arzoumanidis (HafenCity University), Abhijeet Ghodgaonkar (University of Maryland), Hanan Samet (University of Maryland) and Youness Dehbi (HafenCity University)

• Detection of Small Non-Distinctive Infrastructure Objects in Multi-Channel Remotely Sensed Images
  Patryk Szczodrowski (West Pomeranian University of Technology in Szczecin) and Paweł Forczmański (West Pomeranian University of Technology in Szczecin)

• Modality Contributions in National-Scale Multi-Label Land-Cover Classification: A Per-Class, Multi-Architecture Study [experiments]
  David Kasperek (Opole University of Technology) and Michal Podpora (University of Opole)

• Loc-Erase: Spatially-Aware Federated Unlearning for Wi-Fi-Based Indoor Localization
  Mostafa Gaafar (American University in Cairo), Omar Saqr (The American University in Cairo), Hamada Rizk (Osaka University) and Moustafa Youssef (American University in Cairo)

• When Cross-Modal Distillation Can’t Help: A Recoverability Diagnosis of WiFi RTT to RSS Positioning [experiments]
  Omar Saqr (The American University in Cairo), Mostafa Gaafar (The American University in Cairo), Moustafa Youssef (The American University in Cairo) and Hamada Rizk (RIKEN-CCS, Osaka University)

• Do Location Encoders Capture Spatial Effects? A GeoShapley Benchmark Across Scales [experiments]
  Daniel Kiv (University of Illinois at Urbana-Champaign) and Shaowen Wang (University of Illinois Urbana-Champaign)

• SYLVAN: A Multi-SensorSatellite Fusion System for Spatio-Temporal Anomaly Screening in Dense Forest Environments
  Sarath Shanker (Oakland University) and Dr. Sunny Raj (Oakland University)

• Non-Parametric Spatiotemporal Trajectory Prediction via State-Conditioned Transition Sampling
  Michael Fore (Amazon Web Services), Akshay Jain (Amazon Web Services), Justin Downes (Amazon Web Services), Rohan Pradhan (Amazon Web Services) and Duncan Botti (Amazon Web Services)

• GeoAI Platform for Natural Language Exploration of Multidimensional Flood Risk Scenarios
  Aditya Barve (Massachusetts Institute of Technology), Rutvik Deshpande (Massachusetts Institute of Technology) and Miho Mazereeuw (Massachusetts Institute of Technology)

• Fast-EcoDiffusion: Scalable Uncertainty-Aware Emulation of Ecosystem Processes via Latent Diffusion Models
  Ruohan Li (University of Maryland, College Park), Zhihao Wang (University of Maryland), Shuo Xu (University of Maryland), Zhili Li (University of Maryland, College Park), Ruichen Wang (University of Maryland College Park), Lei Ma (University of Maryland), George Hurtt (University of Maryland), Xiaowei Jia (Rutgers University), Gengchen Mai (University of Texas at Austin) and Yiqun Xie (University of Maryland, College Park)

• When Edge Importance Disagrees: Resistance-Ranked versus Betweenness Pruning on Urban Road Networks [experiments]
  Jianru Shen (University of Montana)

• Structured Urban Airspace Design and Pre-Flight Path Planning for Scalable Unmanned Aerial Vehicle Traffic
  Arowa Yasmeen (The University of Texas at Dallas), Daniel Kadosh (The University of Texas at Dallas), Korey Pickering (The University of Texas at Dallas) and Ovidiu Daescu (The University of Texas at Dallas)

• Multimodal Alignment and Uncertainty Quantification for Power Outage Forecasting
  Xiaoyang Hou (University of California, Riverside), Yuzhou Chen (UC Riverside) and Liang Du (Villanova University)

• Geospatial Modeling of Noise-Induced Avian Habitat Resistance from Distributed Acoustic Sensing
  Magaranth Rajkumar (Naperville Central High School), Weijian Zheng (Argonne National Laboratory) and Miguel Jimenez (Urban Wildlife Institute)

• LLM-enhanced agent-based modeling for mobility-based heat exposure assessment during mega events
  Xinxi Yang (The Hong Kong University of Science and Technology (Guangzhou)) and Qiumeng Li (The Hong Kong University of Science and Technology (Guangzhou))

• SeisMamba: Low-Latency Single-Station Seismic Magnitude Estimation for Spatially Distributed Earthquake Early Warning
  Quenton Yeo (The University of Sydney), Zhaoge Bi (The University of Sydney), Linghan Huang (The University of Sydney), Luke Stephen Higgins (Accenture), Flora Salim (The University of New South Wales) and Huaming Chen (The University of Sydney)

• Evaluating Socioeconomic Bias in Flood Adaptation Generation with Large Language Models
  Yue Qin (University of Pittsburgh), Xiaowei Jia (University of Pittsburgh), Yiqun Xie (University of Maryland, College Park) and Rosta Farzan (University of Pittsburgh)

• An Empirical Evaluation of Cross-City POI Recommendation on a Large-Scale Benchmark [Experiments]
  Peibo Li (University of New South Wales), Yang Song (The University of New South Wales), Hao Xue (The Hong Kong University of Science and Technology (Guangzhou)), Maarten de Rijke (University of Amsterdam) and Flora D. Salim (University of New South Wales)

• Epidemic Forecasting: Are We Seeing the Full Picture?
  Toan Tran (Emory University), Ruochen Kong (Emory University), Lupin Cai (Emory University), Andreas Züfle (Emory University) and Li Xiong (Emory University)

• Adaptive Road Semantic Self-Learning for Kilo-metre level Vehicle Trajectory Prediction
  Caini Liu (Hebei University of Economics and Business), Shuhui Gong (China university of Geoscience (Beijing)), Yi Xu (China University of Geosciences, Beijing), Jilin Hu (East China Normal University; Shanghai Engineering Research Center of Big Data Management) and Hongbin Pei (School of Cyber Science and Engineering, Xian Jiaotong University)

• Human Mobility Anomaly Detection via Activity Profiles
  Erfan Hosseini Sereshgi (Tulane University)

• Distilling Aggregate Mobility Statistics into a Language Model Policy for Post-Event Crowd Simulation
  Tatsuya Amano (The University of Osaka) and Hirozumi Yamaguchi (The University of Osaka)