Nathan McEachen
Employers on the program
- 2026TerraFrame3 talks
The year around now
Talks in the past 12 months and announced talks ahead, one row per conference, January to December. Hover a mark for the talk.
Appearances by year
- FOSS4G
- FOSS4G North America
Talks
| Date | Event | Conference | Role | Title | Links |
|---|---|---|---|---|---|
| Nov 2, 2026 | FOSS4G North America 2026 | FOSS4G North America | workshop | Building Geospatially Aware LLM Agents with Graphs and DGGS as TerraFrame Attendees will build two complementary approaches for enabling geospatial awareness in LLMs: Geo-GraphRAGs for analyzing networks of features and DGGS-based…Show lessAttendees will build two complementary approaches for enabling geospatial awareness in LLMs: Geo-GraphRAGs for analyzing networks of features and DGGS-based methods for integrating aggregate and statistical data, and how they work together. | |
| Nov 2, 2026 | FOSS4G North America 2026 | FOSS4G North America | speaker | Introducing Geospatial Awareness to LLMs with Integrity, Provenance, and Trust as TerraFrame While LLMs excel at synthesizing text, they lack geospatial awareness and cannot reason over spatial networks. This talk demonstrates how Geo-GraphRAG and DGGS,…Show lessWhile LLMs excel at synthesizing text, they lack geospatial awareness and cannot reason over spatial networks. This talk demonstrates how Geo-GraphRAG and DGGS, grounded in open standards, enable geospatial reasoning with transparent, traceable results. | |
| Aug 30, 2026 | FOSS4G 2026 | FOSS4G | workshop | Building Geospatially Aware LLM Agents with Spatial Knowledge Graphs and Discrete Global Grid Systems as TerraFrame Attendees will build two complementary approaches for enabling geospatial awareness in LLMs: Geo-GraphRAGs for analyzing networks of features and DGGS-based…Show lessAttendees will build two complementary approaches for enabling geospatial awareness in LLMs: Geo-GraphRAGs for analyzing networks of features and DGGS-based methods for integrating aggregate and statistical data, and how they work together. | |
| Aug 30, 2026 | FOSS4G 2026 | FOSS4G | speaker | Methods for Introducing Geospatial Awareness to Large Language Models with Integrity, Provenance, and Trust through Open Standards and Open SourceWhile LLMs excel at synthesizing text, they lack geospatial awareness and cannot reason over spatial networks. This talk demonstrates how Geo-GraphRAG and DGGS,…Show lessWhile LLMs excel at synthesizing text, they lack geospatial awareness and cannot reason over spatial networks. This talk demonstrates how Geo-GraphRAG and DGGS, grounded in open standards, enable geospatial reasoning with transparent, traceable results. | |
| Aug 30, 2026 | FOSS4G 2026 | FOSS4G | speaker | Towards a Spatial Knowledge Mesh: A Metamodel for Federated and Interoperable Spatial Knowledge Graphs to Enable Geospatial Awareness, Integrity, Provenance, and Trust in Large Language Models Motivation and Problem Context Advances in generative artificial intelligence are enabling new applications across many industry sectors. | |
| Nov 3, 2025 | FOSS4G North America 2025 | FOSS4G North America | workshop | Build a GraphRAG To Bring Geospatial Awareness to LLM AgentsGraph-based retrieval-augmented generation (GraphRAG) can capture the semantics of geoinformatics data, which can be leveraged by LLMs. We will demonstrate how…Show lessGraph-based retrieval-augmented generation (GraphRAG) can capture the semantics of geoinformatics data, which can be leveraged by LLMs. We will demonstrate how to build a GraphRAG and how to write prompts so that an LLM Agent can utilize it. | |
| Nov 3, 2025 | FOSS4G North America 2025 | FOSS4G North America | speaker | Scalable GeoAI: Building LLM Agents Using National Spatial Data InfrastructuresNational spatial data infrastructures (NSDIs) contain a wealth of information that AI-based solutions can leverage to improve operational efficiency. We propose…Show lessNational spatial data infrastructures (NSDIs) contain a wealth of information that AI-based solutions can leverage to improve operational efficiency. We propose a collaborative strategy to bring geospatial awareness into LLMs at scale by constructing GraphRAGs for LLM Agents. | |
| Sep 9, 2024 | FOSS4G North America 2024 | FOSS4G North America | speaker | Bringing Geospatial Awareness to LLMs Using Open-Source SoftwareGeospatial awareness can be brought to LLMs to address humanity’s most pressing challenges by using authoritative and cross-sectoral Spatial Knowledge Graphs…Show lessGeospatial awareness can be brought to LLMs to address humanity’s most pressing challenges by using authoritative and cross-sectoral Spatial Knowledge Graphs that are automatically interoperable by location. We will present a technical approach using open-source software. | |
| Sep 9, 2024 | FOSS4G North America 2024 | FOSS4G North America | speaker | KnowSTAC: Framework for Creating Dynamic and Knowledge-Interoperable STAC IndexesKnowSTAC is a framework for creating dynamic STAC indexes that organize data not according to how they are published as collections or catalogs, but according…Show lessKnowSTAC is a framework for creating dynamic STAC indexes that organize data not according to how they are published as collections or catalogs, but according to on-demand queries that can crosscut domains and organizations for improved collaboration. | |
| Jun 26, 2023 | FOSS4G 2023 | FOSS4G | speaker | Enabling Knowledge Sharing By Managing Dependencies and Interoperability Between Interlinked Spatial Knowledge Graphs Knowledge sharing is increasingly being recognized as necessary to address societal, economic, environmental, and public health challenges. | |
| Jun 26, 2023 | FOSS4G 2023 | FOSS4G | speaker | Enabling Knowledge Sharing By Managing Dependencies and Interoperability Between Interlinked Spatial Knowledge Graphs Knowledge sharing is increasingly being recognized as necessary to address societal, economic, environmental, and public health challenges. | |
| Aug 22, 2022 | FOSS4G 2022 | FOSS4G | speaker | GeoPrism Registry - Using Spatial Knowledge Graphs for Managing and Integrating Geographic Data Over Time Across Multiple Information Systems A knowledge graph is a network that interconnects concepts, objects, or events according to domain specific relationships and terminology. |
Frequent co-speakers
| Speaker | Shared events | Shared talks | Last together |
|---|---|---|---|
| Andrea Aime | 6 | — | 2026 |
| Matthew Hanson | 6 | — | 2026 |
| Stefano Bovio | 5 | — | 2026 |
| Benjamin Webb | 4 | — | 2026 |
| Corey White | 4 | — | 2026 |
| Edoardo Neerhut | 4 | — | 2026 |
| Howard Butler | 4 | — | 2026 |
| Jeroen Ticheler | 4 | — | 2026 |
| Michael Smith | 4 | — | 2026 |
| Michele Tobias | 4 | — | 2026 |
| Pete Gadomski | 4 | — | 2026 |
| Simone Giannecchini | 4 | — | 2026 |
| Tom Kralidis | 4 | — | 2026 |
| Vicky Vergara | 4 | — | 2026 |
| Giovanni Allegri | 4 | — | 2025 |
Speakers with the same name are merged into one entry, so this page may combine more than one person. Affiliations are shown as each conference listed them.