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4th ACM SIGSPATIAL International Workshop on Searching and Mining Large Collections of Geospatial Data
SIGSPATIAL Conference Dates: November 03 - November 06, 2025
GeoSearch Workshop Date: November 03, 2025
Venue: Graduate by Hilton Minneapolis, Minneapolis, MN, USA
Photo by Bobak Ha'Eri, CC BY 3.0

Mission

The proliferation of geospatial data has accelerated due to advances in Earth Observation (EO) technologies, the widespread deployment of Internet of Things (IoT) sensors, the rise of open science initiatives, and the increasing availability of cloud-native and AI-driven geospatial platforms. This data is now highly heterogeneous in format, modality, resolution, and temporal scale, and is being generated at unprecedented speed and volume. These trends introduce significant challenges—and opportunities—in how to efficiently search, integrate, and mine massive, multimodal geospatial datasets to reveal meaningful patterns and support informed decision-making.

In this context, users must not only identify where to search for geospatial objects of interest, but also determine which models are best suited for different analytical tasks. The emergence of geospatial foundation models—large, pretrained models designed to generalize across spatial domains and modalities—presents new opportunities and challenges. How can users locate and reuse models trained on similar tasks? How should such models be stored, indexed, and made searchable? A unified search framework that enables discovery across content, metadata, and analytic tasks would unlock powerful applications, allowing users to identify the most appropriate model, understand its relevance to specific geospatial tasks, and search across diverse data types, including vector, raster, text, time-series, and point clouds.

Looking ahead, there is a clear demand for fast, interactive, multimodal geospatial search. Users may wish to find relevant models for domain-specific objects of interest (e.g., critical infrastructure), search satellite archives using an image query, or monitor rapidly evolving situations for rapid response to events such as floods or earthquakes. This workshop aims to bridge the fields of retrieval, data modeling, and model development for geospatial data to further the emerging landscape of GeoSearch—scalable, intelligent search over geospatial data and models.

Example topics include but are not limited to:

  • Search and Retrieval using Geospatial Foundation Models
  • Geospatial Knowledge Graphs for Search
  • Multimedia Information Retrieval
  • Neural Search in Spatio-temporal Data
  • Search in Large Spatio-temporal Data Cubes
  • Searching Geospatial Objects - Vector Geometry, 3D Point Clouds, Spatial Trajectories, Positioning, Localization and Navigation
  • Spatial Representation Learning for Search
  • Metadata design and cataloguing of Machine Learning Models
  • Design of Data and Model Relational Structures
  • Keyword-Search in Spatial Data
  • Spatial Index Structures for Search
  • Scalable Search Interfaces, Frameworks and Implementations
  • Data Representations and Containers facilitating content-based retrieval
  • Scalable Management and Analysis of Geospatial Big Data
  • Design and Implementation of Spatial Indexing Methods

GeoSearch '24 Workshop Proceedings https://dl.acm.org/doi/proceedings/10.1145/3681769

Program

Monday, November 03, 2025 — Think 4, Graduate by Hilton Minneapolis, Minneapolis, MN, USA

Program (Minneapolis, MN Local Time)

Time Title Authors
8:00–8:20 Opening Remarks
8:20–8:40 MulSAFER: A Framework for Extraction and Interpretation of Safe Mobility Paths from Multimodal Spatial Data Yi-Wen Hung, An-Syu Li, Shih-Chun Lin, Han-Chi Chen, Chi-Tsun Lin, Yi-Chung Chen
8:40–9:00 Experimental Evaluation of Compression for Geospatial Trajectory Data Siyu Chen and John Krumm
9:00–9:20 GeoSearchPredict: Predicting Search Term Popularity Nathan Blanken and Hanan Samet
9:20–9:40 Accelerating Discovery and Retrieval of Heterogeneous Geospatial Data: A Scalable Location-Centric Database Architecture for Disaster Response and Recovery Ardavan Sassani, Ryan Garland, Anshul Gupta, Ramita Rathore, Sara Edwards, Armin R. Mikler, Chetan Tiwari
9:40–10:00 DistRAG: Towards Distance-Based Spatial Reasoning in LLMs Nicole Schneider, Nandini Ramachandran, Kent O'Sullivan, Hanan Samet
10:00–10:30 Coffee Break
10:30–11:10 Keynote – Bridging Language and Geography for Geospatial Data Mining
Dr. Yao-Yi Chiang
11:10–11:30 Detecting Legend Items on Historical Maps Using GPT-4o with In-Context Learning Sofia Kirsanova, Yao-Yi Chiang, Weiwei Duan
11:30–11:50 Discussion / Collaboration Opportunities
11:50–12:00 Closing Remarks

Submission Format

The GeoSearch 2025 is a half-day workshop in the 33rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2025), which consists of keynotes and individual paper presentations. Two submission format will be included in this workshop:

  • Full research paper: 6-8 pages
  • Short research paper or demo paper: 4 pages

Full research papers should present mature research on a specific problem or topic in the context of geospatial search. We also welcome short research articles or industry demonstrations of existing or developing methods, toolkits, and best practices for AI applications in the geospatial domain.

Manuscripts should be submitted in PDF format and formatted using the ACM camera-ready templates available at http://www.acm.org/publications/proceedings-template . All submitted papers will be peer reviewed to ensure the quality and the clarity of the presented research work. Submissions will be single-blind — i.e., the names affiliations of the authors should be listed in the submitted version.

For each accepted paper, at least one author must register for the ACM SIGSPATIAL conference, attend the workshop, and present the paper during the workshop.

Submission system: https://easychair.org/my/conference?conf=geosearch2025

Key Dates

 

Paper Submission Deadline: August 16, 2025 August 26, 2025 (AOE)

Author Notification: September 27, 2025

Camera Ready Version: October 08, 2025 (AOE)

Workshop: November 03, 2025

Workshop Chairs

 

Abhishek Potnis

Oak Ridge National Laboratory

 

Hao Li

National University of Singapore

 

Martin Werner

Technical University of Munich

 

Dalton Lunga

Oak Ridge National Laboratory

 

Wenwen Li

Arizona State University

 

Program Committee

Pedram Ghamisi, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Germany
Steffen Knoblauch, Heidelberg University, Germany
Surya Durbha, Indian Institute of Technology Bombay, India
Biplab Banerjee, Indian Institute of Technology Bombay, India
Xuke Hu, German Aerospace Center, Germany
Rui Zhu, University of Bristol, UK
Yu Feng, Technical University of Munich, Germany
Pratyush Talreja, Indian Institute of Technology Bombay, India
Xiao Huang, Emory University, USA
Rajat Shinde, NASA-IMPACT, University of Alabama in Huntsville, USA
Muthukumaran Ramasubramanian, NASA-IMPACT, University of Alabama in Huntsville, USA
Omkar Prabhune, Purdue University, USA
Manolis Koubarakis, National and Kapodistrian University of Athens, Greece
Kuldeep Kurte, International Institute of Information Technology Hyderabad, India
Femi Omitaomu, Oak Ridge National Laboratory, USA
Yan Liu, Oak Ridge National Laboratory, USA
Debvrat Varshney, Oak Ridge National Laboratory, USA
Waqwoya Abebe, Oak Ridge National Laboratory, USA
Pranav Sankhe, Oak Ridge National Laboratory, USA