Research Area 1

Qualitative Spatial Reasoning & Place Modelling

Foundational research on representing and reasoning about geographic place using qualitative spatial methods

This research area forms the core of my research programme, spanning over 15 years and encompassing foundational work on qualitative spatial reasoning through to ongoing projects on place knowledge graphs and geographic question answering. The work addresses how we can formally represent and reason about geographic places in ways that align with human understanding — using qualitative expressions like "near", "north of", and "inside" rather than purely coordinate-based approaches.

Research Themes

Qualitative Spatial Reasoning Place Ontologies Knowledge Graphs Linked Data GIS DGGS Semantic Web Place Affordance GeoQA

Research Projects

Semantic Web Spatial Rule Language

Philip Smart
PhD 2009 • Foundational

SWSRL — a hybrid framework integrating qualitative symbolic reasoning with quantitative geometric information for geo-ontologies on the Semantic Web.

Place Ontologies & Semantic Place Modelling

6 PhD Projects
2011–2026 • Umbrella Project

15 years of research on formal representation of geographic place — from place affordance and geo-folksonomies to qualitative place models on the Linked Data Web.

Global Place Knowledge Graphs

Hanan Muhajab
PhD 2020–2024 • Ongoing

The DLIG ontology design pattern for unified representation of vague and crisp place descriptions in global-scale knowledge graphs.

GIS-Native Qualitative Place Models

Abdurauf Satoti
PhD 2021–2026 • Ongoing

A framework extending qualitative place modelling with DGGS integration (H3, S2) for place creation and semantic interoperability in GIS.

Geographic Question Answering

Falha Alkhuzayyim
PhD 2024–ongoing

LLM-based approaches to answering natural language questions about geographic knowledge, bridging semantic place models with conversational AI.

Impact & Legacy

This research programme has established foundational methods for qualitative spatial reasoning on the Semantic Web, developed novel ontology design patterns for place representation, and continues to push boundaries in integrating place semantics with modern AI and GIS technologies. The work has produced multiple PhD graduates now working in academia and industry, and has influenced approaches to geographic information representation internationally.