34th ACM SIGSPATIAL

ACM SIGSPATIAL 2026 - Accepted Demo Papers

• FastNSA: A High-Performance QGIS Plugin for Network Spatial Analytics
  Hongwei Ye (College of Computer Science and Software Engineering, Shenzhen University), Tsz Nam Chan (Shenzhen University), Leong Hou U (Department of Computer and Information Science, University of Macau), Dingming Wu (College of Computer Science and Software Engineering, Shenzhen University) and Joshua Zhexue Huang (College of Computer Science and Software Engineering, Shenzhen University)

• TangibleGeoAI: Touching Urban Form to Test Planning Scenarios
  Shun Nakayama (Senshu University), Nozomi Ishiguro (Senshu University) and Hikaru Ashida (Senshu University)

• Accelerating Point-in-Polygon Predicates via Algebraic Hash-Joins and Discrete Global Grids at Scale [Demo]
  Levente Juhász (University of Florida)

• En-AgentSociety: Observable and Reproducible LLM-Based Urban Simulation at Regional Scale
  Gustavo Santos (Universidade Tecnológica Federal do Paraná), Aline Viana (Inria Saclay) and Thiago Silva (Federal University of Technology - Parana)

• Multi-Modal Geospatial Pattern Search [Demo]
  Nicole Schneider (University of Maryland), Manya Garg (University of Maryland), Rudrank Singh (University of Maryland), Ryan Chan (University of Maryland) and Hanan Samet (University of Maryland)

• CMAD-Vis: An Interactive Tool for Detecting Clusters of Anomalous Antarctic Sea Ice Melting Events [Demo]
  Maloy Kumar Devnath (University of Maryland, Baltimore County) and Sudip Chakraborty (University of Maryland, Baltimore County)

• RISE: A Real-time and Interactive Spatiotemporal Kernel Density Visualization System with Streaming and Static Data [Demo]
  Yue Zhong (Shenzhen University), Tsz Nam Chan (Shenzhen University), Leong Hou U (University of Macau), Dingming Wu (Shenzhen University), Wei Tu (Shenzhen University), Ruisheng Wang (Shenzhen University) and Joshua Zhexue Huang (Shenzhen University)

• SurgiMatch: Matching Surgical Staff With Procedures Based On Expertise and Location-Awareness [Demo]
  Charles Arroyo (Iowa State University), Kaung Son (Iowa State University), Billy Dang (Iowa State University), Bo Oo (Iowa State University), Simone Banks (Iowa State University), Muhammed Fadel (Iowa State University), Charles Dolphin (Iowa State University), Justin Stevens (Iowa State University), Sam Gorun (Iowa State University), Simon Berberich (Iowa State University) and Goce Trajcevski (Iowa State University)

• CATALYST: CATalogue-driven LLM sYstem for Spatial Tiling [Demo]
  Tarlan Bahadori (University of California, Riverside) and Ahmed Eldawy (University of California, Riverside)

• TrajectoryLab: A Reproducible Sandbox for Evaluating Stay Detection under Noise and Uncertainty
  Joon-Seok Kim (Emory University), Yueyang Liu (Emory University) and Andreas Züfle (Emory University)

• SPOT2Go: Robotic GeoAI for Real-Time Obstacle Detection Along Pedestrian Routes [Demo]
  Chan Young Koh (University of Rhode Island) and Abdeltawab Hendawi (University of Rhode Island)

• Datacube SDK: A Research Prototype for Constructing, Analyzing, and Serving Spatial DataCubes Based on a 3D Grid System [Demo]
  Bongjun Lee (CmWorld Co., Ltd), Malsoon Pyun (CmWorld Co., Ltd) and Hyunkyoung Kim (CmWorld Co., Ltd)

• GridMind: A DGGS-Grounded Multi-Agent System for Spatial Reasoning [Demo]
  Mingke Erin Li (University of Calgary), Jinya Wang (University of Calgary) and Steve Liang (University of Calgary)

• ReNUP: Scalable Non-uniform Graph Partitioning
  Alhassan Satii Mustafa Alshareedah (University of California, Riverside) and Amr Magdy (University of California, Riverside)

• Modelling and Analysing Circular Moving Regions [Demo]
  Giulia Rovinelli (Ca' Foscari University of Venice), Esteban Zimányi (Université Libre de Bruxelles), Marta Simeoni (Ca' Foscari University of Venice) and Alessandra Raffaetà (Ca' Foscari University of Venice)

• EV-SmartSim: An Interactive Playground for Simulating Electric Vehicles as Mobile Energy Storage [Demo]
  Muhammad Insan Al-Amin (Monash University), Loic Merret (Bordeaux INP), Yifan Sun (University of Melbourne), Muhammad Aamir Cheema (Monash University) and Adel N. Toosi (University of Melbourne)

• Cross-Platform Spatial Analytics with Apache Wayang: Geometries Have Boundaries, Your Analytics Shouldn’t [Demo]
  Felix Treykorn (Hasso Plattner Institute, University of Potsdam), Anton Persitzky (Hasso Plattner Institute, University of Potsdam), Maximilian Speer (Hasso Plattner Institute, University of Potsdam), Zoi Kaoudi (IT University of Copenhagen) and Eleni Tzirita Zacharatou (Hasso Plattner Institute, University of Potsdam)

• MMVAS: A Multi-Modal Visual Analytics System for Fine-Grained Land Tax Assessment~[Demo]
  Jing-Zhe Hunag (National Cheng Kung University), Kai Cheng (National Cheng Kung University), Yen-Hsun Chang (National Cheng Kung University), Ping-Hung Chen (National Cheng Kung University), Yuan-Cheng Lai (National Cheng Kung University) and Hsun-Ping Hsieh (National Cheng Kung University)

• WalkAlong - A Conversational AI Agent for Crowdsourcing Real-Time Spatially-Explicit Pedestrian Experiences [Demo]
  Yifei Wang (George Mason University) and Armita Kar (George Mason University)

• Event-Specific Knowledge Grounding for LLM-Driven Agent-Based Simulation of Planned Special Event Traffic
  Yu-Cheng Wang (National Cheng Kung University), Hung-Ru Ko (National Cheng Kung University), Wei-Hsiang Wang (National Cheng Kung University), Chun-Hao Yin (National Cheng Kung University), Sung-Chieh Chen (National Cheng Kung University), I-Cheng Lien (National Cheng Kung University), Kai-Ting Lin (National Cheng Kung University), Shih-Hung Yang (National Cheng Kung University), Tsu-Jui Cheng (National Cheng Kung University), Tzu-Chang Lee (National Cheng Kung University) and Hsun-Ping Hsieh (National Cheng Kung University)

• AI-Assisted Generation of Synthetic Geospatial Data Streams
  Yaron Kanza (AT&T), Simon Luong (AT&T), Rajat Malik (AT&T) and Divesh Srivastava (AT&T)

• Tesseract: Interactive Conversion of Building Floor Plans into Multi-Floor Navigable Graphs [Demo]
  Yaqoob Ansari (Carnegie Mellon University), Eduardo Feo Flushing (Carnegie Mellon University) and Khaled Harras (Carnegie Mellon University)

• Any Model, Any Place, Any Time: Get Remote Sensing Foundation Model Embeddings On Demand
  Dingqi Ye (University of Illinois Urbana-Champaign), Daniel Kiv (University of Illinois Urbana-Champaign), Wei Hu (University of Illinois Urbana-Champaign), Yunfan Kang (University of Illinois Urbana-Champaign), Jimeng Shi (University of Illinois Urbana-Champaign) and Shaowen Wang (University of Illinois Urbana-Champaign)

• TAREEK-Vis: An Interactive Visualization Tool for Large-Scale MATSim Traffic Simulations [Demo]
  Jalal Khalil (St. Cloud State University), Arein Duaibes (College of Saint Benedict and Saint John's University), Da Yan (Indiana University Bloomington) and Virginia Sisiopiku (University of Alabama at Birmingham)

• Fangorn: A Conversational Platform for Geospatial Intelligence Analytics
  Justin Downes (Amazon Web Services), Duncan Botti (Amazon Web Services), Akshay Jain (Amazon Web Services), Michael Fore (Amazon Web Services), Newel Hirst (Amazon Web Services), Rohan Pradhan (Amazon Web Services) and Jeffrey McIntyre (Amazon Web Services)

• POIBench: An Interactive Benchmarking Platform for Multi-Source POI Dataset Evaluation [Demo]
  Houpu Li (University of California, Santa Barbara) and Wenfei Xu (University of California, Santa Barbara)

• Aether : A System for Agentic Retrieval and Reasoning over Multimodal Earth Observation Data [Demo]
  Youssef Hussein (University of Minnesota), Abhishek Potnis (Oak Ridge National Laboratory), Janghyeon Lee (University of Minnesota), Mohamed F. Mokbel (University of Minnesota) and Dalton Lunga (Oak Ridge National Laboratory)

• MapScout: An Agentic Harness for Map Editing and Geospatial Data Labeling [Demo]
  Vishal Kumar (Amazon), Shaishav Maisuria (Amazon) and Emre Eftelioglu (Amazon)

• The Anomaly Forge: Interactive, Self-Auditing Generation of Labeled Mobility Anomalies from Natural Language [Demo]
  Mauryan Uppalapati (Tulane University) and Carola Wenk (Tulane University)

• Real-time AIS common behavioral patterns
  Giannis Spiliopoulos (University of the Aegean, Syros, Greece), Ioannis Kontopoulos (National Technical University of Athens, Greece), Konstantinos Tserpes (National Technical University of Athens, Greece) and Dimitris Zissis (University of the Aegean, Syros, Greece)

• UrbanAIDE: An Agentic Geospatial Workspace for Participatory Urban Event Management
  Xinjie Zhao (The University of Tokyo), Jue Ma (The University of Tokyo) and Yoshihide Sekimoto (The University of Tokyo)