Nouvelle perception de la spatialité des objets et de leurs relations. Développement d'une modélisation tridimensionnelle de l'information spatiale. - Roland Billen (2002)

3D spatial relationships model: a useful concept for 3D cadastre? - Roland Billen; Siyka Zlatanova (Comput. Environ. Urban Syst., 2003)

A Model for Ternary Projective Relations between Regions. - Roland Billen; Eliseo Clementini (EDBT, 2004)

Introducing a Reasoning System Based on Ternary Projective Relations. - Roland Billen; Eliseo Clementini (SDH, 2004)

Etude des caractéristiques projectives des objets spatiaux et de leurs relations. - Roland Billen; Eliseo Clementini (Rev. Int. Géomatique, 2004)

Semantics of Collinearity Among Regions. - Roland Billen; Eliseo Clementini (OTM Workshops, 2005)

Projective Relations in a 3D Environment. - Roland Billen; Eliseo Clementini (GIScience, 2006)

Modeling and Computing Ternary Projective Relations between Regions. - Eliseo Clementini; Roland Billen (IEEE Trans. Knowl. Data Eng., 2006)

Spatio-Temporal Configurations of Dynamics Points in a 1D Space. - Pierre Hallot; Roland Billen (BMI, 2007)

Investigating a Bottom-up Approach for Extracting Ontologies from Urban Databases. - Christophe Chaidron; Roland Billen; Jacques Teller (Ontologies for Urban Development, 2007)

Life and Motion Configurations: A Basis for Spatio-temporal Generalized Reasoning Model. - Pierre Hallot; Roland Billen (ER Workshops, 2008)

Refining Topological Relations between Regions Considering Their Shapes. - Roland Billen; Yohei Kurata (GIScience, 2008)

Méthode de relevé rapide de scènes urbaines tridimensionnelles dans le cadre d'évaluations environnementales stratégiques. - François Laplanche; Jacques Teller; Roland Billen (Rev. Int. Géomatique, 2008)

Ontology-based approaches for improving the interoperability between 3D urban models. - Claudine Métral; Roland Billen; Anne-Françoise Cutting-Decelle; Muriel van Ruymbeke (J. Inf. Technol. Constr., 2010)

Editorial - Bringing Urban Ontologies into Practice. - Jacques Teller; Roland Billen; Anne-Françoise Cutting-Decelle (J. Inf. Technol. Constr., 2010)

A Reasoning System of Ternary Projective Relations. - Eliseo Clementini; Spiros Skiadopoulos; Roland Billen; Francesco Tarquini (IEEE Trans. Knowl. Data Eng., 2010)

Preface to the Posters and Demonstrations. - Roland Billen; Pierre Hallot (ER Workshops, 2011)

Preface to SeCoGIS 2011. - Esteban Zimányi; Roland Billen; Pierre Hallot (ER Workshops, 2011)

Report on the first workshop on Movement Pattern Analysis MPA10. - Patrick Olivier Laube; Björn Gottfried; Alexander Klippel; Roland Billen; Nico Van de Weghe (J. Spatial Inf. Sci., 2011)

Errata Corrige on "Modeling and Computing Ternary Projective Relations between Regions". - Eliseo Clementini; Roland Billen; Marco Santic (IEEE Trans. Knowl. Data Eng., 2013)

Éditorial. - Jean-Paul Donnay; Roland Billen (Rev. Int. Géomatique, 2014)

Who are my Visitors and Where do They Come From? An Analysis Based on Foursquare Check-ins and Place-based Semantics. - Pierre Hallot; Kathleen Stewart; Roland Billen (UDMV, 2015)

Challenges of Semantic 3D City Models: A Contribution of the COST Research Action TU0801. - Roland Billen; Anne-Françoise Cutting-Decelle; Claudine Métral; Gilles Falquet; Sisi Zlatanova; Ognen Marina (Int. J. 3 D Inf. Model., 2015)

Data Product Specification Proposal for Architectural Heritage Documentation with Photogrammetric Techniques: A Case Study in Brazil. - Mariana Batista Campos; Antonio M. G. Tommaselli; Ivana Ivánová; Roland Billen (Remote. Sens., 2015)

Les états spatiotemporels d'existence et de présence. Vers une définition des relations entre objets absents ou inexistants. - Pierre Hallot; Kathleen Stewart; Roland Billen (Rev. Int. Géomatique, 2015)

Point Clouds as an Efficient Multiscale Layered Spatial Representation. - Florent Poux; Romain Neuville; Pierre Hallot; Roland Billen (UDMV, 2016)

Collaborative 3D Modeling: Conceptual and Technical Issues. - Rafika Hajji; Roland Billen (Int. J. 3 D Inf. Model., 2016)

Enhancing Spatio-Temporal Identity: States of Existence and Presence. - Pierre Hallot; Roland Billen (ISPRS Int. J. Geo Inf., 2016)

Computing Techniques for Spatio-Temporal Data in Archaeology and Cultural Heritage - Introduction. - Alberto Belussi; Roland Billen; Pierre Hallot; Sara Migliorini (COSIT (Workshops/Posters), 2017)

An Analytical Framework for Classifying Software Tools and Systems Dealing with Cultural Heritage Spatio-Temporal Information. - Andrea Luczfalvy Jancsó; Benoît Jonlet; Patrick Hoffsummer; Emmanuel Delye; Roland Billen (COSIT (Workshops/Posters), 2017)

Projective Relations. - Eliseo Clementini; Roland Billen (Encyclopedia of GIS, 2017)

A Formalized 3D Geovisualization Illustrated to Selectivity Purpose of Virtual 3D City Model. - Romain Neuville; Jacynthe Pouliot; Florent Poux; Laurent de Rudder; Roland Billen (ISPRS Int. J. Geo Inf., 2018)

3D Point Cloud Semantic Modelling: Integrated Framework for Indoor Spaces and Furniture. - Florent Poux; Romain Neuville; Gilles-Antoine Nys; Roland Billen (Remote. Sens., 2018)

Voxel-based 3D Point Cloud Semantic Segmentation: Unsupervised Geometric and Relationship Featuring vs Deep Learning Methods. - Florent Poux; Roland Billen (ISPRS Int. J. Geo Inf., 2019)

3D Viewpoint Management and Navigation in Urban Planning: Application to the Exploratory Phase. - Romain Neuville; Jacynthe Pouliot; Florent Poux; Roland Billen (Remote. Sens., 2019)

CityJSON Building Generation from Airborne LiDAR 3D Point Clouds. - Gilles-Antoine Nys; Florent Poux; Roland Billen (ISPRS Int. J. Geo Inf., 2020)

A Built Heritage Information System Based on Point Cloud Data: HIS-PC. - Florent Poux; Roland Billen; Jean-Paul Kasprzyk; Pierre-Henri Lefebvre; Pierre Hallot (ISPRS Int. J. Geo Inf., 2020)

Initial User-Centered Design of a Virtual Reality Heritage System: Applications for Digital Tourism. - Florent Poux; Quentin Valembois; Christian Mattes; Leif Kobbelt; Roland Billen (Remote. Sens., 2020)

From consistency to flexibility: A simplified database schema for the management of CityJSON 3D city models. - Gilles-Antoine Nys; Roland Billen (Trans. GIS, 2021)

3D Digital Heritage and Historical Storytelling: Outcomes from the Interreg EMR Terra Mosana Project. - Muriel van Ruymbeke; Eslam Nofal; Roland Billen (HCI (23), 2022)

A Prior Level Fusion Approach for the Semantic Segmentation of 3D Point Clouds Using Deep Learning. - Zouhair Ballouch; Rafika Hajji; Florent Poux; Abderrazzaq Kharroubi; Roland Billen (Remote. Sens., 2022)

From consistency to flexibility: Handling spatial information schema thanks to a middleware in a 3D city modeling context. - Gilles-Antoine Nys; Roland Billen (Trans. GIS, 2023)

Digital Twins for cities: Analyzing the gap between concepts and current implementations with a specific focus on data integration. - Imane Jeddoub; Gilles-Antoine Nys; Rafika Hajji; Roland Billen (Int. J. Appl. Earth Obs. Geoinformation, 2023)

IFC-CityGML Data Integration for 3D Property Valuation. - Siham El Yamani; Rafika Hajji; Roland Billen (ISPRS Int. J. Geo Inf., 2023)

PEMAP: An intelligence-based framework for post-event management of transportation systems. - Nourhan Bachir; Hassan Harb; Chamseddine Zaki; Michel Nabaa; Gilles-Antoine Nys; Roland Billen (Comput. Electr. Eng., 2023)

SAMO: A Sequential Pattern Mining Model for Evaluating Road Criticality in Urban Traffic Networks. - Nourhan Bachir; Hassan Harb; Chamseddine Zaki; Roland Billen (VTC Fall, 2024)

Investigating Prior-Level Fusion Approaches for Enriched Semantic Segmentation of Urban LiDAR Point Clouds. - Zouhair Ballouch; Rafika Hajji; Abderrazzaq Kharroubi; Florent Poux; Roland Billen (Remote. Sens., 2024)

On Integrating Robotic Data with GIS Tools in a Cloud Environment. - Jean-Paul Kasprzyk; Roland Billen; Sandro Bimonte; Laurent d'Orazio; Dimitris Sacharidis; Piotr Skrzypczynski; Robert Wrembel (EDBT/ICDT Workshops, 2025)

VeTraSPM: Novel vehicle trajectory data sequential pattern mining algorithm for link criticality analysis. - Nourhan Bachir; Chamseddine Zaki; Hassan Harb; Roland Billen (Veh. Commun., 2025)

Data integration across urban digital twin lifecycle: a comprehensive review of current initiatives. - Imane Jeddoub; Gilles-Antoine Nys; Rafika Hajji; Roland Billen (Ann. GIS, 2025)