3D GeoInfo | Smart Data and Smart Cities | LADM & 3D LA

28 September - 2 October 2026, Sofia, Bulgaria

About The Event

3D GeoInfo | SDSC | LADM & 3D LA 2026, the co-located 21st International 3D GeoInfo Conference 2025, 10th International Smart Data and Smart Cities Conference and 14th International FIG Workshop on LADM & 3D LA, will be held in Sofia, Bulgaria on 28th September - 2nd of October 2026. The event is hosted by the Big Data for Smart Society (GATE) Institute, Sofia, Bulgaria.

Where

5 James Bourchier Blvd., Sofia, Bulgaria

When

Monday to Friday
28 September - 2 October 2026

About

3D GeoInfo | SDSC | LADM & 3D LA
Download conference broshure.

28 Sept - 29 Sept 2026

The 3D GeoInfo Conference aims to bring together international researchers, practitioners, and professionals from academia, industry, and government to discuss the latest advances in 3D geoinformation science and technology. This annual event offers a multidisciplinary and intersectoral forum in the fields of 3D/4D data collection, management, data quality, analysis, advanced modelling, and visualisation, with a strong focus on cutting-edge research, standardisation, technical, implementation and application issues across different disciplines.

29 Sept - 1 Oct 2026

The Smart Data and Smart Cities (SDSC) Conference is an annual international conference that brings together international experts in city analytics, GIS, digital twins, smart cities and data science from leading research institutes to discuss advances in methods and applications. It provides a forum to discuss the use data and technology to plan and shape our future cities. SDSC is the annual conference of the Urban Data Management Society, a society over 50 years old.

1 Oct - 2 Oct 2026

The LADM & 3D LA workshop aims to bring together experts from the industry, government, and academia, to present and discuss LADM and/or 3D LA related developments including live demonstrations of LADM implementations (operational systems, pilots, prototypes). The workshop will also cover informal or customary rights (restrictions, responsibilities) as exiting in many countries, next to the more formal rights that are being registered. The registration of the legal status in complex 3D situations will be investigated under the header of 3D Cadastres.

Chair

Dessislava PETROVA_ANTONOVA, GATE Institute, Bulgaria

Co-Chairs

3D GeoInfo: Dessislava PETROVA_ANTONOVA, GATE Institute, Bulgaria

SDSC: Christina MICKRENSKA, UACEG, Bulgaria

LADM & 3D LA: Peter van OOSTEROM, TU Delft, The Netherlands

Organising committee

*Sorted by Alphabetic First Name

  • Boyan STEFANOV, GATE Institute, Bulgaria
  • Christina MICKRENSKA, UACEG, Bulgaria
  • Dessislava PETROVA-ANTONOVA, GATE Institute, Bulgaria
  • Elena PENEVA, UACEG, Bulgaria
  • Emil HRISTOV, GATE Institute, Bulgaria
  • Gichka Kutova-Kamenova, UACEG, Bulgaria
  • Ivan KUNCHEV, UACEG, Bulgaria
  • Kaloyan KARAMITOV, GATE Institute, Bulgaria
  • Lidia VITANOVA, GATE Institute, Bulgaria
  • Mariya PANTUSHEVA, GATE Institute, Bulgaria
  • Simeon MALINOV, GATE Institute, Bulgaria
  • Sylvia ILIEVA, GATE Institute, Bulgaria

Committees

*Sorted by Alphabetic First Name.

  • Abbas RAJABIFARD, University of Melbourne, Australia
  • Abdoulaye DIAKITE, UNSW, Sydney
  • Abdullah ALATTAS, King Abdulaziz University, Saudi Arabia
  • Abdullah KARA, Gebze Teknik Üniversitesi, Turkey
  • Agung INDRAJIT, Nusantara Capital Authority, Indonesia
  • Al-Doori MULHIM, Roads and Transport Authority, UAE
  • Alenka POPLIN, Iowa State University, United States of America
  • Alessandra DE BENEDICTIS, University of Naples Federico II, Italy
  • Ali AIEN, University of Melbourne, Australia
  • Alias Abdul RAHMAN, Universiti Teknologi, Malaysia
  • Allison KEALY, RMIT, Australia
  • Amalia VELASCO, Former Spanish cadastre, Spain
  • Andre DA SILVA MANO, University of Twente, Netherlands
  • Andrea F.T. CARNEIRO, Universidade Federal de Pernambuco, Brazil
  • Andres HERNANDEZ BOLAÑOS, Registro Nacional Costa Rica, Costa Rica
  • Andreas DONAUBAUER, Technical University of Munich, Germany
  • Andreas GEORGOPOULOS, National Technical University of Athens, Greece
  • Angel COLLADO, Colegio Oficial de Ingeniería Geomática y Topográfica, Spain
  • Anh Vu VO, University College Dublin, Ireland
  • Anthony BECK, Ordnance Survey, UK
  • Anka LISEC, University of Ljubljana, Slovenia
  • Antonia SPANÒ, Politecnico di Torino, Italy
  • Antony COOPER, CSIR, India
  • Apostolos ARVANITIS, Aristotle University of Thessaloniki, Greece
  • Artur Caldas BRANDÃO, Federal University of Bahia, Republic of El Salvador
  • Arturo ARANGUREN, Deneb Latinoamericana, USA
  • Arzu ÇÖLTEKIN, University of Applied Sciences and Arts, Switzerland
  • Asimina DIMARA, Democritus University of Thrace, Greece
  • Aurobindo OGRA, University of Johannesburg, South Africa
  • Azarakhsh RAFIEE, Delft University of Technology, The Netherlands
  • Balamurugan SOUNDARARAJ, UNSW, Australia
  • Baris KAZAR, Oracle America Inc, United States
  • Bastiaan VAN LOENEN, Delft University of Technology, The Netherlands
  • Behnam ATAZADEH, University of Melbourne, Australia
  • Ben GORTE, UNSW, Australia
  • Bheshem RAMLAL, University of the West Indies, Jamaica
  • Binghao LI, UNSW, Australia
  • Bryce LKELLYI, UNSW, Australia
  • Camilo LEÓN SÁNCHEZ, TU Delft, The Netherlands
  • Carlos VIEIRA, Federal University of Santa Catarina, Brazil
  • Carmen FEMENIA-RIBERA, Universitat Politècnica de València, Spain
  • Charalabos IOANNIDIS, National Technical University of Athens, Greece
  • Charisse GRIFFITH-CHARLES, The University of the West Indies, St. Augustine, Trinidad and Tobago
  • Charl-Thom BAYER, Land Portal Foundation, The The Netherlands
  • Claudia LINDNER, Kadaster, The Netherlands
  • César CÁRDENAS, Tecnológico de Monterrey in Guadalajara, Mexico
  • Chiara GARAU, University of Cagliari, Italy
  • Christiaan LEMMEN, University of Twente, The The Netherlands
  • Christina MICKRENSKA, UACEG, Bulgaria
  • Christopher Pettit, UNSW, Australia
  • Chryssy POTSIOU, NTUA, Greece
  • Cidália Costa FONTE, University of Coimbra, Portugal
  • Claire ELLUL, University College London, United Kingdom
  • Claudine METRAL, University of Geneva, Switzerland
  • Claudio PERSELLO, University of Twente, The Netherlands
  • Cynthia Changxin WANG, UNSW, Australia
  • Danail NEDYALKOV, UACEG, Bulgaria
  • Daniel PAEZ, Land Equity International Pty Ltd, Australia
  • Daniele TRECCANI, Politecnico di Milano, Italy
  • David HESLOP, UNSW, Australia
  • Davood SHOJAEI, The University of Melbourne, Australia
  • Debaditya AACHARYA, RMIT, Australia
  • Debra LAEFER, New York University, USA
  • Dessislava PETROVA-ANTONOVA, GATE Institute, Bulgaria
  • Dev Raj PAUDYAL, University of Southern Queensland, Australia
  • Didier GRIMALDI, Ramon Llull University, Spain
  • Diego ERBA, Universidad Nacional del Litoral, Argentina
  • Dimitrios KITSAKIS, National Technical University of Athens, Greece
  • Dimos PANTAZIS, University of West Attica, Greece
  • Dinao TJIA, City of Ekurhuleni, South Africa
  • Dionysia Georgia PERPERIDOU, University of West Attica, Greece
  • Dong Keun YOON, Yonsei University, South Korea
  • Dubravka SLADIĆ, University of Novi Sad, Serbia
  • Edward VERBREE, Delft University of Technology, The Netherlands
  • Efi DIMOPOULOU, NTUA
  • Eftychia KALOGIANNI, Delft University of Technology, The Netherlands
  • Ekaterina SENTOVA, UACEG, Bulgaria
  • Elena PENEVA, UACEG, Bulgaria
  • Elikkos ELIA, Cyprus Department of Lands and Surveys, Cyprus
  • Eliseo CLEMENTINI, University of L'Aquila, Italy
  • Emmanuel STEFANAKIS, University of Calgary, Canada
  • Eric GUILBERT, Université Laval, Canada
  • Erik STUBKJÆR, Aalborg University, Denmark
  • Erwin FOLMER, University of Twente, The Netherlands
  • Eva-Maria UNGER, Kadaster, The Netherlands
  • Everton SILVA, UFSC, Brazil
  • Farzaneh Dadrass JAVAN, University of Twente, The Netherlands
  • Fatih DÖNER, Gümüşhane University, Turkey
  • Filip BILJECKI, National University of Singapore, Singapore
  • Francesca NOARDO, OGC, Italy
  • Francis ROY, Laval University, Canada
  • Francisco Henrique OLIVEIRA, Universidade do Estado de Santa Catarina, Brazil
  • François BROCHU, Laval University, Canada
  • Fredrik ZETTERQUIST, University of Gävle, Sweden
  • Fuhu REN, Peking University, China
  • Gamze DANE, Eindhoven University of Technology, The Netherlands
  • Genoveva VARGAS-SOLAR, CNRS-LIG-LAFMIA, France
  • Gerda SCHENNACH, FIG, Austria
  • Gergana ANTOVA, UACEG, Bulgaria
  • Gerhard NAVRATIL, Vienna University of Technology, Austria
  • Gilberto CORSO PEREIRA, Universidade Federal da Bahia, Brazil
  • Gilles FALQUET, University of Geneva, Switzerland
  • Gilles GESQUIERE, Université Lyon, France
  • Giorgio AGUGIARO, TU Delft, The Netherlands
  • Giuseppina VACCA, University of Cagliari, Italy
  • Gordon JOHNSTON, RICS, UK
  • Guilherme LINHEIRA, UDESC, Brazil
  • Gyula IVÁN, Lechner Nonprofit Ltd., Hungary
  • Halil Ibrahim INAN, Gumushane University, Turkey
  • Hans-Christoph GRULER, Leica-Geosystems AG, Switzerland
  • Hao WU, UNSW, Australia
  • Hendrik PLOEGER, Delft University of Technology, The Netherlands
  • Hervé HALBOUT, HALBOUT Consultants, France
  • Hoon HAN, UNSW, Australia
  • Hugo LEDOUX, TU Delft, The Netherlands
  • Ihab HIJAZI, Technical University of Munich, Germany
  • İsmail Rakip KARAŞ, Karabuk University, Turkey
  • Israel TAIWO, The Federal Polytechnic Ado-Ekiti, Nigeria
  • Ivan KUNCHEV, UACEG, Bulgaria
  • Ivana RECETIN, FGAG, Croatia
  • Ivin Amri MUSLIMAN, Universiti Teknologi Malaysia, Malaysia
  • Jaap ZEVENBERGEN, University of Twente, The Netherlands
  • Jack BARTON, UNSW, Australia
  • Jacynthe POULIOT, Universite Laval, Canada
  • Jagannath ARYAL, University of Melbourne, Australia
  • Jamal JOKAR ARSANJANI, Aalborg University Copenhagen, Denmark
  • James KAVANAGH, RICS, UK
  • Jan BARES, Czech Republic
  • Jan PETERS-ANDERS, Austrian Institute of Technology, Austia
  • Jarosław BYDŁOSZ, AGH University of Krakow, Poland
  • Javier MORALES, University of Twente, The Netherlands
  • Jenny PAULSSON, KTH Royal Institute of Technology, Sweden
  • Jernej TEKAVEC, University of Ljubljana, Slovenia
  • Jesper PAASCH, University of Gävle, Sweden
  • Jesús BALADO FRÍAS, University of Vigo, Spain
  • Jian ZUO, The University of Adelaide, Australia
  • Jie JIANG, Beijing University of Civil Engineering and Architecture, China
  • Jinjin YAN, Harbin Engineering University, China
  • Jiyeong LEE, University of Seoul, South Korea
  • Johnson SHEN, UNSW Sydney, Australia
  • João Vitor M BRAVO, Federal University of Uberlândia, Brazil
  • John KAHIU, UN-Habitat, Kenya
  • John GITAU, UN-Habitat
  • Jörg BLANKENBACH, RWTH Aachen, Germany
  • Jose-Paulo DE ALMEIDA, Universidade de Coimbra, Portugal
  • Josip KRIŽANOVIĆ, University of Zagreb, Croatia
  • Jung Hoon LEE, Yonsei Uni, South Korea
  • Jungsup UM, Kyungpook National University, South Korea
  • Johnson SHEN, UNSW Sydney, Australia
  • Jörg BLANKENBACH, RWTH Aachen, Germany
  • Jorge GIL, Chalmers University of Technology, Sweden
  • Jose-Paulo DE ALMEIDA, Universidade de Coimbra, Portugal
  • Jung Hoon LEE, Yonsei Uni, South Korea
  • Jungsup UM, Kyungpook National University, South Korea
  • Karel JANECKA, University of West Bohemia, Czech Republic
  • Kate FAIRLIE, Land Equity International, Australia
  • Katerina ATHANASIOU, National Technical University of Athens, Greece
  • Kean Huat SOON, Singapore Land Authority, Singapore
  • Kees DE ZEEUW, Esri, The The Netherlands
  • Ken ARROYO OHORITU Delft, Mexico
  • Kirsikka RIEKKINEN, Aalto University, Finland
  • Ki-Joune LI, Pusan National University, Korea, Republic of
  • Kourosh KHOSHELHAM, University of Melbourne, Australia
  • Kwabena ASIAMA, University of Twente, The Netherlands
  • Lars BODUM, Aalborg University, Denmark
  • Lars HARRIE, Lund University, Sweden
  • Lee ROBERTS, UNSW, Australia
  • Lena HALOUNOVA, Czech Technical University in Prague, Czech Republic
  • Léon OLDE SCHOLTENHUIS, University of Twente, Netherlands
  • Liane RAMOS, UFSC, Brazil
  • Linlin GE, UNSW, Australia
  • Lidia VITANOVA, GATE Institute, Bulgaria
  • Liu LIU, Tongji University, China
  • Lucía Díaz VILARIÑO, Universidade de Vigo, Spain
  • Magdalena ANDERSSON, Lantmäteriet, Sweden
  • Mahmoud Reza DELAVAR, University of Tehran, Iran
  • Marcello La GUARDIA, University of Palermo, Italy
  • Marcin KARABIN, Warsaw University of Technology, Poland
  • Marco MINGHINI, European Commission - Joint Research Centre, Italy
  • Marcos ABREU, UFV, Brazil
  • Margatira KOKLA, National Technical University of Athens, Greece
  • Marguerite MADDEN, University of Georgia, United States
  • Maria Antonia BROVELLI, Politecnico Di Milano, Italy
  • Maria Sanchez APARICIO, University of Salamanca, Spain
  • Marije LOUWSMA, Cadastre, Land Registry and Mapping Agency, The Netherlands
  • Mario MATTHYS, Ghent University, Belgium
  • Marisa BALAS, FIG - Commission 7, Mozambique
  • Mariya PANTUSHEVA, GATE Institute, Bulgaria
  • Markus SEIFERT, Bavarian Administration for Suveying and Cadastre, Germany
  • Mateus MAGAROTTO, CICS.NOVA Interdisciplinary Centre of Social Science, Portugal
  • Martijn MEIJERS, Delft University of Technology, Netherlands
  • Martin BREUNIG, Karlsruhe Institute of Technology, Germany
  • Martin KADA, Technische Universität Berlin, Germany
  • Martina BAUCIC, FGAG, Croatia
  • Maryam GHODSVALI, Wageningen University and Research, The Netherlands
  • Massimo RUMOR, University of Padua, Italy
  • Matt DUCKHAM, RMIT, Australia
  • Matteo CAGLIONI, UMR 7300 ESPACE - Université Côte d'Azur, France
  • Matthew NG, UNSW, Australia
  • Michael CHOLETTE, QUT, Australia
  • Michael SUTHERLAND, University of the West Indies, Jamaica
  • Mike HORHAMMER, Oracle, United States
  • Mila KOEVA, University of Twente, The Netherlands
  • Miodrag ROIĆ, University of Zagreb, Croatia
  • Mir MOSTAFAVI, Université Laval, Canada
  • Miro GOVEDARICA, University of Novi Sad, Serbia
  • Mitko ALEKSANDROV, Institute for Artificial intelligence, Sebia
  • Mohamed Ridda LAOUAR, TTT
  • Mohammad MOJTAHEDI, The University of New South Wales, Australia
  • Mohammad TALEAI, UNSW, Australia
  • Mohsen KALANTARI, UNSW, Australia
  • Moigan JADIDI, York University, Canada
  • Monica SESTER, Leibniz university Hannover, Germany
  • Monica WACHOWICZ, RMIT, Australia
  • Morakot PILOUK, ESRI, USA
  • Neeraj DIXIT, SLRB, Bahrain
  • Nikola VUČIĆ, University of Zagreb, Croatia
  • Nils WALRAVENS, iMinds, SMIT, Vrije Universiteit Brussel
  • Ofelia CERVANTES, EDUPROTEC, A.C., Mexico
  • Okan YILDIZ, Karadeniz Technical University, Turkey
  • Parag WATE, The University of Sheffield, United Kingdom
  • Paul Vincent KUPER, Karlsruhe Institute of Technology, Germany
  • Pawel BOGUSLAWSKI, Wroclaw University of Environmental and Life Sciences, Poland
  • Peter GMELCH, New York University, United States
  • Peter van OOSTEROM, Delft University of Technology, The Netherlands
  • Petra HELMHOLZ, Curtin University, Australia
  • Preston RODRIGUES, HFT-Stuttgart, Germany
  • Qing ZHU, Wuhan University, China
  • Qishuo GAO, University of New South Wales, Australia
  • Rabinra LAMSAL, UNSW, Australia
  • Rafika HAJJI, Institut Agronomique et Vétérinaire Hassan II, Morocco
  • Regina ORVANANOS, UN-Habitat, Kenya
  • Renzhong GUO, Shenzhen China, China
  • Riza SUNINDIJO, UNSW Sydney, Australia
  • Robert LAURINI, University of Lyon, France
  • Robert OLSZEWSKI, Warsaw University of Technology, Poland
  • Rod THOMPSON, Delft University of Technology, The Netherlands
  • Rohan BENNETT, Swinburne University, Australia
  • Roland BILLEN, University of Liege, Belgium
  • Rui Pedro JULIAO, NOVA FCSH, Portugal
  • Ruihang XIE, Tokyo University, Japan
  • Rudi STOUFFS, University of Singapore, Singapore
  • Sagi DALYOT, The Technion, Israel
  • Samsung LIM, UNSW, Australia
  • Sander OUDE ELBERINK, University of Twente, Netherlands
  • Sang Ho LEE, Hanbat Nat Uni, South Korea
  • Sasa VRANIC, KAJO, Slovakia
  • Serena COETZEE, UNU-FLORES, Germany
  • Shawn LAFFAN, UNSW, Australia
  • Shen YING, Wuhan University, China
  • Shengjun TANG, Shenzhen University, China
  • Simon HULL, University of Cape Town, South Africa
  • Sisi ZLATAMOVA, UNSW, Australia
  • Siva RAVADA, Oracle
  • Soheil SABRI, Melbourne University, Australia
  • Solomon NJOGU, Alumni of Technical University of Munich, Germany
  • Srinath PERERA, Western Sydney University
  • Stela KRIZHOVSKA, UACEG, Bulgaria
  • Stelios KRINIDIS, Democritus University of Thrace, Greece
  • Stephan NEBIKER, University of Applied Sciences and Arts, Switzerland
  • Stephan WINTER, The University of Melbourne, Australia
  • Stephen HIRTLE, University of Pittsburgh, United States
  • Sudarshan KARKI, Queensland Government, Australia
  • Suelynn CHOY, RMIT, Australia
  • Sugie LEE, Hanyang University, South Korea
  • SungsuJO, University of New South Wales, Australia
  • Sunhyung YOO, University of New South Wales, Australia
  • Sunni K. P. KUSHWAHA, Swiss Federal Research Institute, Switzerland
  • Susanne BLEISCH, FHNW University of Applied Sciences and Arts, Switzerland
  • Tarja MYLLYMÄKI, National Land Survey of Finland, Finland
  • Tarun GHAWANA, Integrated Spatial Analytics Consultants, India
  • Thomas H. KOLBE, Technical University of Munich, Germany
  • Tommy CHAN, QUT
  • Trent GULLIVER, Land Information New Zealand, New Zealand
  • Trias ADITYA, UGM, Indonesia
  • Umit ISIKDAG, Mimar Sinan Fine Arts University, Turkey
  • Victor OLONDE, UN-Habitat, Kenya
  • Victoria RAUTENBACH, University of Pretoria, South Africa
  • Vivian Oliveira FERNANDES, UFBA, Brasil
  • Volkan ÇAĞDAŞ, Yildiz Technical University, Turkey
  • Volker COORS, HFT Stuttgart, Germany
  • Wei LI, Harbin Engineering University, China
  • Wei TU, Shenzhen University, China
  • Weixiao GAO, Wageningen University & Research, The Netherlands
  • Willian Ney CASSOL, Université Laval, Canada
  • Xiao Guang ZHOU, Central South University, China
  • Yang YUE, Shenzhen University, China
  • Ye SHI, UNSW, Australia
  • Yi LU, University of New South Wales, Australia
  • Yakup Emre CORUHLU, Karadeniz Technical University, Turkey
  • Yerach DOYTSHER, Technion - Israel Institute of Technology, Israel
  • Yongze SONG, Curtin University, Australia
  • Yoshihide SEKIMOTO, Tokyo University, Japan
  • Youness DEHBI, HafenCity University Hamburg, Germany
  • Yountaik LEEM, Hanbat National University, South Korea
  • Yusheng XU, Technical University Munich, Germany
  • Zhiyong WANG, South China University of Technology, China
  • Zhizhong KANG, China University of Geosciences, China

Topics

3D GeoInfo | SDSC | LADM & 3D LA

3D GeoInfo

  • 3D/4D data acquisition, sensing technologies and laser scanning
  • BIM, Digital Twins, Smart Cities, Smart Infrastructure
  • Smart cities and Industry-Academia-Government Collaboration
  • 3D/4D data processing and analysis, geospatial big data, and AI/Machine Learning
  • 3D/4D data management - data quality, metadata, provenance, and trust
  • Data integration, information fusion, multi-modal data analysis
  • 3D/4D building/ infrastructure/ city modelling
  • 3D/4D visualization, including gamification, virtual, augmented, and mixed reality
  • Geo-information standards and GIS-BIM interoperability
  • Applications of 3D/4D Geoinformation such as simulations and analyses (3D indoor and outdoor navigation, urban planning, land administration, disaster and risk management, energy modelling, facilities management, mobility, and accessibility, etc.)

SDSC

  • GIS, urban informatics, ICT and smart cities
  • Data science, visualization and City Analytics
  • People flow data, mobility data and visualization
  • Participation and empowerment
  • Privacy, data security challenges in digital twins and smart cities
  • Blockchain technology for municipal management
  • Open data and open urban platforms
  • Crowdsourcing data collection and analytics
  • Monitoring systems
  • Disaster management/warning systems
  • Application of Artificial Intelligence (AI) and machine learning in smart cities
  • Drones for monitoring/inspecting cities and construction sites
  • Smart homes
  • Real-time/web-based/interactive data visualization
  • Cities' dashboards
  • Smart Energy efficiency solutions, Net-zero-emission cities
  • Data and analytics for circular economy in cities
  • Smart transportation, automated driving and manned drone transportation
  • Smart logistics
  • Spatio-temporal patterns
  • Big data/big spatial data analysis and management

LADM & 3D LA

  • 3D LAS cost-effective workflow for new / updated 3D parcels = 4D (part of whole spatial development lifecycle: from planning/design / permit in 3D, to registration/use in 3D)
  • Legal aspects for 3D LAS, best legal practices in various legislation systems
  • BIM/IFC use and guidelines for design sources (LA_DesignSource)
  • Remote sensing (including LiDAR) and artificial intelligence (AI) for efficient 3D cadastral boundary extraction in the survey sources (LA_SurveySource)
  • Proposals for (and evaluations of) LA (remote) sensing information models and data processing workflows
  • 3D LAS web-based dissemination (usability, man-machine interfaces, including mobile/AR)
  • Focus on large cities, including developing countries
  • LADM specializations for customary RRRs, such as STDM, SOLA/Open Tenure, MAST (possibly with attention for 3D and valuation)
  • 3D in the revision of ISO 19152, the Land Administration Domain Model

Key Deadlines

3D GeoInfo | Smart Data and Smart Cities

  • Abstract Submission: March 25, 2026 (extended to April 10, 2026)
  • Abstract Acceptance: June 5, 2026
  • Full Paper Submission: March 25, 2026 (extended to April 10, 2026)
  • Paper Acceptance: June 12, 2026
  • Final Paper Submission: June 30, 2026
  • Conference Dates: September 28–October 2, 2026

LADM & 3D LA Workshop

  • Abstract Submission:June 15, 2026
  • Abstract Acceptance: July 15, 2026
  • Final Paper Submission: August 30, 2026
  • Conference Dates: October 1-2, 2026

Instructions for Authors

3D GeoInfo | Smart Data and Smart Cities | LADM & 3D LA Conferences

3D GeoInfo and Smart Data Smart Cities

You are invited to submit your contribution as full papers or abstract papers to the Scientific Sessions. These will be selected through a double-blind review process and should not be published elsewhere.

Accepted papers for the 3D GeoInfo and Smart Data & Smart Cities Scientific Sessions will be published in the ISPRS Annals or the ISPRS Archives. Both types of publications are listed in the ISI Conference Proceedings Citation Index (CPCI) of the Web of Science, SCOPUS, the E/I Compendex, and the Directory of Open Access Journals (DOAJ).

Submissions for the Scientific Sessions should be prepared according to the ISPRS guidelines. All accepted contributions must be presented at the conference.

  • Accepted full papers (min 6 - max 8 pages) will be published in the ISPRS Annals (full paper double-blind peer review). Submissions must be anonymized. Papers not accepted for ISPRS Annals might be considered for the ISPRS Archives.
  • Accepted extended abstracts (2 pages, 800–1000 words) will be requested to submit a final paper (min 6 - max 8 pages) and will be published in the ISPRS Archives (abstract double-blind peer review). Submissions must be anonymized. The extended abstracts on their own will not be published.

Submissions from industry, government, and NGOs are welcome to the Applied Session, fostering collaboration between practitioners, researchers, and students. Submissions should be extended abstracts (2 pages, 800–1000 words) and may cover technological innovations, project initiatives, or applied methodologies in any conference topic. Reviews will prioritize practical applications over scientific research, and marketing-focused submissions will not be accepted.

Submissions should be prepared according to the ISPRS guidelines. The authors of the accepted contributions must submit a final revised abstract, and at least one author must register by the deadline to be included in the program.

All contributions for both Scientific Sessions and Applied Session should be submitted via Conftool online submission system.

LADM and 3D LA workshop

Extended abstracts (2 pages, 800–1000 words) for the FIG LADM and 3D LA workshop should be submitted via Conftool online submission system. Authors of accepted submissions will be requested to submit the full paper (10-16 pages, 5000–8000 words). Full papers will be included in the proceedings (on-line available at start the workshop) published by FIG with ISBN / ISSN reference. Based on the full papers and the presentations at the workshop, a limited number of authors will be invited (after the workshop) to submit a significantly different/ extended paper (40% new material) to the special issue of the international scientific MDPI Land Journal.

Submissions for the Scientific Sessions should be prepared according to the LADM and 3D LA guidelines, using the MS Word template.

Keynote Speakers

Ljubo GEORGIEV

Sofia Municipality, Deputy Mayor on on Urban Planning and Development

Rafika HAJJI

Hassan II Institute of Agronomy and Veterinary medicine

Name

Affiliation

Name

Affiliation

Conference Programme

Comming soon

The 2026 program promises a dynamic and diverse mix of keynote presentations, scientific and technical sessions, workshops, tutorials, special forums, and networking opportunities.

* schedule subject to change

Registration

Registration

Registration

Registration

Registration

Conference Venue

Venue location info

Big Data for Smart Society Institute

The GATE Institute is the first Centre of Excellence in Bulgaria to work on integrating and extending scientific excellence and innovation in priority areas such as Big Data and Artificial Intelligence at regional and European level.

Accommodation

Recommended hotels.

Rosslyn Thracia Hotel Sofia

2.7 Mile from the Venue

Sponsors

Contact us to become our sponsor.

Journal Partners

Oportunities to publish extended papers in journals

ISPRS International Journal of Geo-Information (IJGI), ISSN 2220-9964 waives publication fees for at 10 high-quality, extended full articles submitted to the conference special issue "Urban Digital Twins Empowered by AI and Dataspaces".

IJGI will present three Best Paper Awards, each valued at 350 CHF, to recognize outstanding contributions.

IJGI is the open access journal of the ISPRS and is published monthly online by MDPI. IJGI provides an advanced forum for the science and technology of geographic information. It aims to encourage scientists to publish their experimental and theoretical results in as much detail as possible.

Become a Sponsor

Join as a key sponsor and supporter of the 3D GeoInfo | SDSC | LADM & 3D LA 2026. Express an interest through the online booking form. Download partnership broshure.

Platinum partner

  • Logo placement on all marketing materials and communications (prominent placement)
  • Logo featured on the event website and GATE events page
  • GATE will provide a custom social media tile to promote across your channels
  • Verbal acknowledgement at opening and closing plenary sessions and all social program events
  • Opportunity to present during a plenary session (approx 20 mins)
  • Free standing banners can be installed in each plenary and presentation space
  • Logo to appear on event multimedia and any printed event materials (prominent placement)
  • 3× event registrations included (with access to all sessions and social events)
  • Display table at the event to showcase products / marketing materials
  • Opportunity to supply logo branded lanyards (at own cost)
  • Opportunity to supply a door prize (at own cost)
  • Attendee list (opt-in delegates - name, company and email)

10 000 EUR + GST

Gold partner

  • Logo placement on all marketing materials and communications
  • Logo featured on the event website and GATE events page
  • GATE will provide a custom social media tile to promote across your channels
  • Verbal acknowledgement at the opening and closing plenary sessions
  • Free standing banners can be installed in the plenary space and each presentation space
  • Logo to appear on event multimedia and any printed event materials
  • 2× event registrations included (with access to all sessions and social events)
  • Display table at the event to showcase products / marketing materials
  • Opportunity to supply a door prize (at own cost)
  • Attendee list (opt-in delegates – name, company and email)

7 000 EUR + GST

Silver partner

  • Logo placement on all marketing materials and communications
  • Logo featured on the event website and GATE events page
  • GATE will provide a custom social media tile to promote across your channels
  • Verbal acknowledgement at the opening and closing plenary sessions
  • Free standing banners can be installed in the plenary space
  • Logo to appear on event multimedia and any printed event materials
  • 1× event registration included (with access to all sessions and social events)
  • Display table at the event to showcase products / marketing materials
  • Opportunity to supply a door prize (at own cost)
  • Attendee list (opt-in delegates – name, company and email)

5 000 EUR + GST

Bronze partner

  • Logo placement on all marketing materials and communications
  • Logo featured on the event website and GATE events page
  • GATE will provide a custom social media tile to promote across your channels
  • Verbal acknowledgement at the opening and closing plenary sessions
  • Free standing banner can be installed in the plenary space
  • Logo to appear on event multimedia and any printed event materials
  • 1× event registration included (with access to all sessions and social events)
  • Attendee list (opt-in delegates – name, company and email)

2 000 EUR + GST

Travel Information

Important information for travelling to Sofia

Sofia Airport

Sofia Airport is the largest airport in Bulgaria and is only 20 minutes away by metro from the city center. Sofia Airport has two terminals – T1 and T2. Sofia Airport provides direct free-of-charge transportation between the two terminal buildings.

The airport can be accessed easily form Sofia city by metro or bus.

Sofia Airport Metro Station

Sofia Airport Metro Station is located in the eastern part of Terminal 2. You can reach it by following the blue markings on the floor of the public area of Terminal 2. M4 Line of Sofia Metro connects Sofia Airport with the city center – at Sofia University Metro Station and at Serdika Metro Station. The trip takes about 30 minutes. By changing lines at Serdika Metro Station you can go to Sofia Central Bus Station and Sofia Central Railway Station. The metro trains from and to the airport run from 5:30 to 24:00 on weekdays and holidays. There are travel cards vending machines at Sofia Airport Metro Station. You can use Bulgarian banknotes or coins or a credit card to purchase a travel card. It costs 0.80 EUR. The single-trip travel card for the metro has to be validated at the validators at the entrance to the metro stations. Each travel card can be used up to 30 minutes after being purchased. A single travel card for metro you can buy also from the metro cash-desks located next to the metro's entrance. You should keep your travel card till the end of the trip.

Bus lines E84, E184, 384

Bus line E84 runs from Sofia city center – bus stop Gen. Gurko Str. (bus stop № 1903), to Sofia Airport Terminal 2. From Terminal 2 it runs to Sofia Airport Terminal 1 and then back to Sofia city center.

Bus line E184 runs from Sofia city center - bus stop Gen. Gurko Str. (bus stop № 1903), to Sofia Airport Terminal 1. From Terminal 1 it runs to Terminal 2 and then back to Sofia city center.

Bus line 384 runs to Sofia Airport – Terminal 2 from Druzhba 2 district. The bus service starts from Druzhba 2, goes along Christopher Columbus Blvd. through Druzhba 1 to Terminal 2 and then goes back following the same route.

The bus lines operate under an all-day timetable. The exact times, including the first and last buses, are published on the website of Sofia Urban Mobility Centre. The journey with buss lines E84 and E184 takes around 45 minutes to reach the airport from the city center. The journey time from the first to the final stops of bus line 384 bus route is about 25-30 min on weekdays and weekends/holidays.

Public transport tickets in Sofia can be purchased via contactless bank card/phone, official mobile app (MPass), vending machines at metro stations, or from kiosks, costing 0.80 EUR (30 min) or 1.10 EUR (60 min). Contactless validation is mandatory on all buses, trams, and metro gates.

Tip: Tap your Visa/MasterCard, phone, or smartwatch directly on the blue Validators (card readers) located on all buses, trams, and trolleybuses. If you tap the same card 3+ times in a single day, it will automatically charge a daily cap of 2 EUR. You must tap every time you enter a vehicle, even when transferring.

Visa Application Information

Important information for visa applications

Requirements when entering the country

The Republic of Bulgaria is part of the Schengen area.

A foreigner may enter the Republic of Bulgaria if he/ she is a holder of a regular foreign travel document or another equivalent document as well as a visa if required.

Visa issuing

A foreign citizen wishing to apply for a Bulgarian visa shall hold a regular travel document that meets the following requirements:

  • its validity expires at least 3 months after the intended date of departure from the territory of the Republic of Bulgaria or in case of multiple visits - after the last scheduled date of departure from the territory of the Republic of Bulgaria;
  • contains at least 2 blank pages for visa purposes;
  • has been issued within the last 10 years.

Visas are issued by the diplomatic and consular representations of the Republic of Bulgaria.

Visa applications

Visa applications forms are submitted not earlier than 3 months before the date of the intended travel, personally or through an authorized agent, with the exception of humanitarian cases.

Register as soon as you can for the event and request a Letter of Invitation during the registration process.

Visitors can find further information on the application procedures and required documents for the issuance of visas, as well as the address of consular offices, on the website of the Ministry of Foreign Affairs.

Supporters

The conferences are supported by

Registration Fees

Registration for the conferences will be possible in April 2026. The registration is considered early until July 20th, 2026.

JOINT EVENT (5 Days)

  • REGULAR attendant, 650 EUR
  • STUDENT attendant, 400 EUR
  • Abstract only, 350 EUR
  • REGULAR attendant, 750 EUR
  • STUDENT attendant, 450 EUR
  • Abstract only, 450 EUR
  • Accompanying Person, 150 EUR
  • Additional paper (up to 2), 150 EUR

3D Geo Info (2 Days)

  • REGULAR attendant, 300 EUR
  • STUDENT attendant, 200 EUR
  • Abstract only, 350 EUR
  • REGULAR attendant, 350 EUR
  • STUDENT attendant, 250 EUR
  • Abstract only, 450 EUR
  • Accompanying Person, 150 EUR
  • Additional paper (up to 2), 150 EUR

SDSC (3 Days)

  • REGULAR attendant, 350 EUR
  • STUDENT attendant, 250 EUR
  • Abstract only, 350 EUR
  • REGULAR attendant, 450 EUR
  • STUDENT attendant, 300 EUR
  • Abstract only, 450 EUR
  • Accompanying Person, 150 EUR
  • Additional paper (up to 2), 150 EUR

LADM & 3D LA (2 Days)

  • REGULAR attendant, 300 EUR
  • STUDENT attendant, 200 EUR
  • Abstract only, 350 EUR
  • REGULAR attendant, 350 EUR
  • STUDENT attendant, 250 EUR
  • Abstract only, 450 EUR
  • Accompanying Person, 150 EUR
  • Additional paper (up to 2), 150 EUR

Registration Details

Regitration Details

The joint registration gives you the opportunity to publish and present a paper at one of the Scientific Sessions of the event, participate in all sessions, access to the event reception (September 28), and attend the event dinner (September 30). The regular fee is €650 early, €750 late. For MSc and PhD students, it is €400 early, €450 late.

Registrations for a single conference are possible as follows:

  • 3D GeoInfo Conference: publish and present a paper at one of the Scientific Sessions, participate in 3D GeoInfo sessions, access to the event reception (September 28), and the event dinner (September 30). The regular fee is €300 early, €350 late. For MSc and PhD students, it is €200 early, €250 late.
  • SDSC Conference: publish and present a paper at one of the Scientific Sessions, participate in SDSC sessions, access to the event reception (September 28), and the event dinner (September 30). The regular fee is €350 early, €450 late. For MSc and PhD students, it is €250 early, €300 late.
  • LADM & 3D LA Workshop: publish and present a paper at one of the Scientific Sessions, participate in LADM & 3D LA sessions, access to the event reception (September 28), and the event dinner (September 30). The regular fee is €300 early, €350 late. For MSc and PhD students, it is €200 early, €250 late.

The registration for abstract-only participation gives you the opportunity to present an extended abstract at the Applied Session of the event, access to the conference reception (September 28), and the conference dinner (September 30). The regular fee is €350 early, €450 late.

All the above-mentioned options include an event bag and materials, lunch, and tea and coffee during breaks.

The accompanying person registration is for non-academic participants (spouses, relatives, and friends) who are not paper co-authors and enables them to attend the event reception and event dinner.

Notes (read carefully)

  • For each accepted paper, one author must register, pay the registration fee, and present the paper in person, in the event session where the paper is scheduled.
  • Once the registration payment is made, NO REFUND is available.

Payment By Wire Transfer

NAME OF THE BANK: BULGARIAN NATIONAL BANK (BNB)

BANK ADDRESS: 1 KNYAZ ALEXANDER I SQ., SOFIA 1000, BULGARIA

ACCOUNT HOLDER: INSTITUTE BIG DATA FOR SMART SOCIETY – GATE

ACCOUNT HOLDER ADDRESS: 5 JAMES BOURCHIER BLVD., SOFIA 1164, BULGARIA

SWIFT CODE: BNBGBGSF

IBAN: BG53 BNBG 9661 3100 1543 01

CURRENCY: EUR

The correspondent account of the BNB in TARGET2 is

IBAN: BG83 BNBG 9661 1100 0661 41

SWIFT CODE: BNBGBGSF

Please specify in the DESCRIPTION the following: NAME SURNAME GeoSofia 2026 (i.e. Anthony Smith GeoSofia 2026).

Replace NAME and SURNAME with your full name. If administrative personnel issue the payment, ensure they conform to the syntax above. Having your payment correctly associated with your registration is crucial, as some banks limit the string to a small number of characters.

IMPORTANT REMINDERS: The participant must pay the bank wire transfer-related fees (OUR).

Contact

Contact us for assistance and more information.

Address

5 James Bourchier Blvd., 1164 Sofia, Bulgaria

Email Us

contact@gate-ai.eu