LDAC2018 - 6th Linked Data in Architecture and Construction Workshop (19 - 21 June 2018)

The LDAC workshop series provides a focused overview on technical and applied research on the usage of semantic web, linked data and web of data technologies for architecture and construction (design, engineering, construction, operation, etc.). The workshop aims at gathering researchers, industry stakeholders, and standardization bodies of the broader Linked Building Data (LBD) community. This includes the buildingSMART Linked Data Working Group (LDWG) participants and the W3C Linked Building Data (LBD) Community Group participants. The aim of the workshop is to present current developments, coordinate efforts, gather stakeholders, and elaborate use cases.


This year's LDAC workshop takes place at the premises of University College London (UCL) and ARUP, in London (United Kingdom). In this workshop, the main aim is to evaluate the current status of the different available ontologies to capture building data. This includes:

  • the ifcOWL ontology (buildingSMART)
  • the Building Topology Ontology (BOT - W3C)
  • the PRODUCT ontology (W3C)
  • geospatial ontologies
  • infrastructure ontologies (oil&gas, roads, tunnels, rail)
  • HVAC ontologies
  • building automation ontologies (BACS, DogOnt, SAREF)
  • semantic sensor ontologies (SSN)

Aside the development and usage of these ontologies, the purpose of the LDAC workshop is to also investigate ways in which the ontology-based data can be combined into a complete and holistic set of available building data. Finally, and most importantly, a number of industry cases are invited, aiming to give an indication of the effect of these ontologies on every day practice in managing building data (design, construction, facility management, smart cities). The following topics are hereby warmly welcomed:

  • linking building data to product data, GIS data and sensor data
  • decentralised publication of models
  • interoperability
  • ontology mapping and instance mapping
  • building data localization
  • semantic web services
  • reasoning
  • semantic query systems and approaches
  • visualization frameworks
  • open data publication


Paper submission deadline: April 6, 2018
Industry case submission deadline: April 30, 2018
Notification of acceptance for paper submissions: April 30, 2018
Notification of acceptance for industry cases: May 10, 2018

Registration: June 11, 2018
LDAC workshop: June 19-21, 2018


Keynote: Ed Parsons, Google

Ed Parsons is the Geospatial Technologist of Google, with responsibility for evangelising Google’s mission to organise the world’s information using geography. In this role he maintains links with Governments, Universities, Research and Standards Organisations which are involved in the development of Geospatial Technology. He is a member of the the Board of Directors of the Open Geospatial Consortium and was co-chair of the W3C/OGC Spatial Data on the Web Working Group. He is a Visiting Professor at University College London and an Executive Fellow at the University of Aberdeen Business School.

Keynote: Tom Heath, ARUP

Tom Heath is an internationally recognised computer scientist with many years’ experience of data science/engineering and web technologies, and has held senior research and data science positions in commercial and non-profit startups. He is an accomplished and experienced team leader, with a passion for combining technical expertise and client-facing activities. Tom is known in the research community for his work on Linked Data, having authored a number of highly cited publications in the field. Since joining Arup in May 2016 he has been instrumental in building the company's capabilities in data science, data engineering, and cloud computing, by demonstrating the value these can bring to challenges in the built environment.


The LDAC 2018 event will follow its usual set up and program (tentative outline below). In particular, the workshop will host again a high number of plenary sessions, and the well-known technical track and industry case track will be organised in sequence.

Tuesday 19 June

  • 09:00 - 09:30: registration and opening (presentation)
  • 09:30 - 10:30: keynote by Ed Parsons, Google:
    • Linked data and the mainstream: Adventures in standards and burger bars (presentation)
      Some experiences from bringing the rather academic realm of linked data to the conservative world of geospatial information, while trying to get you connected home assistant to tell your where you can get a good burger on a Sunday evening... How linked data can really back a difference!
  • 11:00 - 12:30: plenary session
    • The IFC to Linked Building Data Converter (presentation)
      Mathias Bonduel, Jyrki Oraskari, Pieter Pauwels, Maarten Vergauwen and Ralf Klein

    • OPM: An ontology for describing properties that evolve over time (presentation)
      Mads Holten Rasmussen, Maxime Lefrançois, Mathias Bonduel, Christian Anker Hviid and Jan Karlshøj

    • Toward French smart building code: Compliance checking based on semantic rules (presentation)
      Nicolas Bus, Ana Roxin, Guillaume Picinbono and Muhammad Fahad

  • 12:30 - 14:00: lunch
  • 14:00 - 17:00: technical session
    • IFC-to-LBD converters (presentation)
      Jyrki Oraskari, Pieter Pauwels

    • W3C BOT-OPM-PRODUCT-PROPS toolset (presentation)
      Mads Holten Rasmussen

    • SPARQL-visualizer: A Communication Tool for Collaborative Ontology Engineering Processes (presentation)
      Mathias Bonduel, Mads Holten Rasmussen, Pieter Pauwels, Maarten Vergauwen and Ralf Klein

  • 19:00 - 23:00: informal dinner
    • Grand Café Villandry (http://www.villandry.com/)
      Cost: £40 (For the three-course menu, including taxes and service) – please cash only
      Address: 170 Great Portland St, Fitzrovia, London W1W 5QB

Wednesday 20 June

  • 09:30 - 10:30: keynote by Tom Heath, ARUP
    • In a layer cake with five stars on top, where precisely is the Linked (Open) Data special sauce?
      Over the years a number of conceptual models have been proposed to help explain Linked Data and the Semantic Web, and how best to adopt them incrementally. Each of these models speak to different audiences and different objectives, but they rarely make a cost/benefit analysis of Linked Data from a data architectural perspective. If we examine the Linked Data stack dispassionately, where precisely is the special sauce? Which layers are redundant with other technical approaches, where does the cost/benefit analysis not measure up, and where can Linked Data make the biggest impact in the built environment?
  • 11:00 - 12:30: plenary session
    • Extending the SAREF ontology for building devices and topology (presentation)
      María Poveda-Villalón and Raúl García-Castro

    • An IFC-based interoperable framework for building linked-data (presentation)
      José L. Hernández, Pedro Martín Lerones, Sonia álvarez, Peter Bonsma, Andre van Delft, Richard Deighton and Jan-Derrick Braun

    • Semantic Encoding of Construction Regulations (presentation)
      Thomas Beach and Yacine Rezgui

  • 12:30 - 14:00: lunch
  • 14:00 - 17:00: industry case session
    • Information Exchange using the District Information Model Server (presentation)
      Cathal Hoare and James O'Donnell

    • BuildVoc Simple Knowledge Organization System for Information Retrieval (presentation)
      Phil Stacey

    • Why software companies in construction industry struggle to adopt semantic web technologies? (presentation)
      Tarcisio Mendes de Farias

    • Visual Semantic Analysis of Very Large BIM, GIS and Point Cloud Data Sets with Softvise Cadmium (presentation)
      Markus Färber, Michael Reeßing, Ronny Krüger, Thomas Preidel, Steffen Cersowsky

    • Reasoning on spatial data for compliance checking purpose (presentation)
      Nicolas Bus

    • Disruption: Shift Happens (presentation)
      Philipp Dohmen

  • 19:00 - 23:00: informal dinner

Thursday 21 June

  • 09:30 - 12:00: W3C LBD Git Issue sprint
  • 12:00 - 14:30: closing meetings and lunch


We support two types of submissions: academic paper submissions and industry case proposals.

    Academic paper submission

    Submit a paper of min. 6 - max. 8 pages (PDF) at https://easychair.org/conferences/?conf=ldac2018 before the submission deadline (April 6, 2018). Please follow the LNCS template (Word, LaTeX) and make a submission directly via EasyChair. Submissions will be peer-reviewed by the Program Committee. Accepted submissions will be published as part of a separate volume of the CEUR-WS proceedings. Reviews for accepted papers will be made available openly online.

    Industry case proposal

    Submit a presentation proposal of min. 1 - max. 4 pages (PDF) at https://goo.gl/forms/x7SQmwVu7YF9iLct2 before the submission deadline for the industrial track (April 30, 2018). Submissions will be peer-reviewed by the LDAC Committee. Accepted proposals can be presented during the industry case track on the second day of the workshop (target duration 15 minutes). Presentations can be made available online upon request during and after the workshop.



Support this event: contact us at ken.enrightATarup.com



All submissions are reviewed by at least two members of the Program Committee, which consists of the following members:

  • Álvaro Sicilia
  • Ana-Maria Roxin
  • Chi Zhang
  • Christophe Nicolle
  • Dimitrios Rovas
  • Daniel Garijo
  • German Nemiorvskij
  • Gonçal Costa
  • Jakob Beetz
  • James O'Donnell
  • Ken Enright
  • Kris McGlinn
  • María Navas-Loro
  • María Poveda Villalón
  • Matteo Del Giudice
  • Maxime Lefrancois
  • Nandana Mihindukulasooriya
  • Pieter Pauwels
  • Raúl García-Castro
  • Seppo Törmä
  • Tamer El-Diraby
  • Tom Beach
  • Tom Heath
  • Walter Terkaj


  • Full Workshop Package: £30.00
  • Day 1 Tuesday 19th June 2018: £20.00
  • Day 2 Wednesday 20th June 2018: £20.00

Register https://goo.gl/kRDpZa
Registration deadline: June 11, 2018.


Bartlett school of architecture building

The event will be held at the University College London, 22 Gordon Street, WC1H 0QB, London, UK. You can find where it is via https://www.ucl.ac.uk/maps/22-gordon-street. The nearest tube stations are: Euston, and Euston Square Station. Please check the TfL website for further information.


You have a few options depending on which airport you fly into, and how much you're willing to spend on your journey. Unfortunately, UCL is unable to operate airport transfers. To help you, we have put together some information which details the options you have for finding your way here. London is well-served by transport links and UCL is located in the Bloomsbury district at the very centre of London. There are easy connections to UCL from London’s global hub airports at Heathrow, Gatwick and Stansted and you will find that London’s extensive public transport system is convenient and easy to use.


Bartlett school of architecture building

There are plenty of places to stay in central London. A good potential nearby location would be the Academy Hotel: https://www.theacademyhotel.co.uk/. Other recommended hotels in the area are: