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373 results on '"Pauwels, Pieter"'

1. Generation of skill-specific maps from graph world models for robotic systems

Author

de Vos, Koen, Brandt, Gijs van den, Senden, Jordy, Pauwels, Pieter, van de Molengraft, Rene, and Torta, Elena

Subjects
Computer Science - Robotics
Abstract

With the increase in the availability of Building Information Models (BIM) and (semi-) automatic tools to generate BIM from point clouds, we propose a world model architecture and algorithms to allow the use of the semantic and geometric knowledge encoded within these models to generate maps for robot localization and navigation. When heterogeneous robots are deployed within an environment, maps obtained from classical SLAM approaches might not be shared between all agents within a team of robots, e.g. due to a mismatch in sensor type, or a difference in physical robot dimensions. Our approach extracts the 3D geometry and semantic description of building elements (e.g. material, element type, color) from BIM, and represents this knowledge in a graph. Based on queries on the graph and knowledge of the skills of the robot, we can generate skill-specific maps that can be used during the execution of localization or navigation tasks. The approach is validated with data from complex build environments and integrated into existing navigation frameworks., Comment: 8 pages

Published
2024

2. Semi-automated Thermal Envelope Model Setup for Adaptive Model Predictive Control with Event-triggered System Identification

Author

Wan, Lu, Dai, Xiaobing, Welfonder, Torsten, Petrova, Ekaterina, and Pauwels, Pieter

Subjects
Electrical Engineering and Systems Science - Systems and Control
Abstract

To reach carbon neutrality in the middle of this century, smart controls for building energy systems are urgently required. Model predictive control (MPC) demonstrates great potential in improving the performance of heating ventilation and air-conditioning (HVAC) systems, whereas its wide application in the building sector is impeded by the considerable manual efforts involved in setting up the control-oriented model. To facilitate the system identification (SI) of the building envelope as well as the configuration of the MPC algorithms with less human intervention, a semantic-assisted control framework is proposed in this paper. We first integrate different data sources required by the MPC algorithms such as the building topology, HVAC systems, sensor data stream and control settings in the form of a knowledge graph and then employ the data to set up the MPC algorithm automatically. Moreover, an event-triggered SI scheme is designed, to ensure the computational efficiency and accuracy of the MPC algorithm simultaneously. The proposed method is validated via simulations. The results demonstrate the practical relevance and effectiveness of the proposed semantics-assisted MPC framework with event-triggered learning of system dynamics.

Published
2023

3. An Alternative Approach to Automated Code Checking – Application of Graph Neural Networks Trained on Synthetic Data for an Accessibility Check Case Study

Author

Bloch, Tanya, Borrmann, André, Pauwels, Pieter, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Skatulla, Sebastian, editor, and Beushausen, Hans, editor

Published
2024
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16. Publishing Cultural Heritage Collections of Ghent with Linked Data Event Streams

Author

Van de Vyvere, Brecht, D’Huynslager, Olivier Van, Atauil, Achraf, Segers, Maarten, Van Campe, Leen, Vandekeybus, Niels, Teugels, Sofie, Saenko, Alina, Pauwels, Pieter-Jan, Colpaert, Pieter, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Garoufallou, Emmanouel, editor, Ovalle-Perandones, María-Antonia, editor, and Vlachidis, Andreas, editor

Published
2022
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17. Knowledge Graphs and Linked Data for the Built Environment

Author

Pauwels, Pieter, Costin, Aaron, Rasmussen, Mads Holten, Correia, José A. F. O., Series Editor, De Jesus, Abílio M. P., Series Editor, Ayatollahi, Majid Reza, Advisory Editor, Berto, Filippo, Advisory Editor, Fernández-Canteli, Alfonso, Advisory Editor, Hebdon, Matthew, Advisory Editor, Kotousov, Andrei, Advisory Editor, Lesiuk, Grzegorz, Advisory Editor, Murakami, Yukitaka, Advisory Editor, Carvalho, Hermes, Advisory Editor, Zhu, Shun-Peng, Advisory Editor, Bordas, Stéphane, Advisory Editor, Fantuzzi, Nicholas, Advisory Editor, Susmel, Luca, Advisory Editor, Dutta, Subhrajit, Advisory Editor, Maruschak, Pavlo, Advisory Editor, Fedorova, Elena, Advisory Editor, Bolpagni, Marzia, editor, Gavina, Rui, editor, and Ribeiro, Diogo, editor

Published
2022
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21. Linked Data im Bauwesen

Author

Beetz, Jakob, Pauwels, Pieter, McGlinn, Kris, Tormä, Seppo, Borrmann, André, editor, König, Markus, editor, Koch, Christian, editor, and Beetz, Jakob, editor

Published
2021
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22. LBD Server: Visualising Building Graphs in Web-Based Environments Using Semantic Graphs and GlTF-Models

Author

Malcolm, Andrew, Werbrouck, Jeroen, Pauwels, Pieter, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, O. Gawad, Iman, Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Eloy, Sara, editor, Leite Viana, David, editor, Morais, Franklim, editor, and Vieira Vaz, Jorge, editor

Published
2021
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27. Proceedings CLIMA 2022: The 14th REHVA HVAC World Congress

Author

Itard, Laure, primary, Hensen-Centnerová, Lada, additional, Boerstra, Atze, additional, Bluyssen, Philomena, additional, Hensen, Jan, additional, Klein, Tillmann, additional, Loomans, Marcel, additional, Pauwels, Pieter, additional, Struck, Christian, additional, Tenpierik, Martin, additional, and Geldermans, Bob, additional

Published
2022
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39. Linked Data

Author

Pauwels, Pieter, McGlinn, Kris, Törmä, Seppo, Beetz, Jakob, Borrmann, André, editor, König, Markus, editor, Koch, Christian, editor, and Beetz, Jakob, editor

Published
2018
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41. ConSolid: A federated ecosystem for heterogeneous multi-stakeholder projects

Author

Werbrouck, Jeroen, Pauwels, Pieter, Beetz, Jakob, Verborgh, Ruben, and Mannens, Erik

Abstract

In many industries, multiple parties collaborate on a larger project. At the same time, each of those stakeholders participates in multiple independent projects simultaneously. A double patchwork can thus be identified, with a many-to-many relationship between actors and collaborative projects. One key example is the construction industry, where every project is unique, involving specialists for many subdomains, ranging from the architectural design over technical installations to geospatial information, governmental regulation and sometimes even historical research. A digital representation of this process and its outcomes requires semantic interoperability between these subdomains, which however often work with heterogeneous and unstructured data. In this paper we propose to address this double patchwork via a decentralized ecosystem for multi-stakeholder, multi-industry collaborations dealing with heterogeneous information snippets. At its core, this ecosystem, called ConSolid, builds upon the Solid specifications for Web decentralization, but extends these both on a (meta)data pattern level and on microservice level. To increase the robustness of data allocation and filtering, we identify the need to go beyond Solid’s current LDP-inspired interfaces to a Solid Pod and introduce the concept of metadata-generated ‘virtual views’, to be generated using an access-controlled SPARQL interface to a Pod. A recursive, scalable way to discover multi-vault aggregations is proposed, along with data patterns for connecting and aligning heterogeneous (RDF and non-RDF) resources across vaults in a mediatype-agnostic fashion. We demonstrate the use and benefits of the ecosystem using minimal running examples, concluding with the setup of an example use case from the Architecture, Engineering, Construction and Operations (AECO) industry.

Published
2024
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42. Semantic 3D city models as support for urban flood resilience: experiences from Rotterdam.

Author

Andriessen, Lara, Agugiaro, Giorgio, Borgers, Aloys, and Pauwels, Pieter

Subjects
URBAN renewal, INFRASTRUCTURE (Economics), URBAN planning, INFORMATION superhighway, CITIES & towns, THREE-dimensional modeling, CITY dwellers
Abstract

This paper presents a process to develop a CityGML-based 3D city model that, together with results from a flood simulation, can be used to investigate direct and indirect effects of floods on a city, its inhabitants and its critical infrastructure, and to quantify such effects by means of a Flood Resilience Score. In addition, the model can be used as a spatial planning support tool for urban planners to prioritise the redevelopment of certain areas and to test new spatial design decisions. First, a semantic 3D city model is prepared and enriched with additional building and infrastructure information. Then a Flood Resilience Score (FReSco) is defined and computed by quantifying the direct and indirect impacts of flooding on buildings, households, and critical infrastructure points using information from both the 3D city model and the flood simulation results. Lastly, a prototype of a spatial planning support tool is proposed to evaluate the flood resilience of a new environmental plan. As a case study, the neighbourhood of "Nieuw Kralingen" in Rotterdam was chosen. Overall, the outcomes of this work are meant to help cities better understand the impacts of flooding and adjust their urban planning activities accordingly. At the same time, the developed methodology also tests the strengths and limits of CityGML-based 3D city models in combination with openly available data and software. [ABSTRACT FROM AUTHOR]

Published
2024
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49. Efficient management and compliance check of HVAC information in the building design phase using Semantic Web technologies

Author

Kücükavci, Ali, Seidenschnur, Mikki, Pauwels, Pieter, Rasmussen, Mads Holten, and Hviid, Christian Anker

Abstract

Several OWL ontologies have been developed for the AEC industry to manage domain-specific information, yet they often overlook the domain of building services and HVAC components. The Flow Systems Ontology was recently proposed to address this need, but it does not include HVAC components’ size and capacity-related properties. Also, despite their strengths in representing domain-specific knowledge, ontologies cannot efficiently identify poor data quality in BIM models. A four-fold contribution is made in this research paper to define and improve the data quality of HVAC information by (1) extending the existing Flow Systems Ontology, (2) proposing the new Flow Properties Ontology, (3) proposing an HVAC rule set for compliance checking, and (4), moreover, we use Semantic Web technologies to demonstrate the benefits of efficient HVAC data management when sizing components. The demonstration case shows that we can represent the data model in a distributed way, validate it using 36 SHACL shapes and use SPARQL to determine the pressure and flow rate of fans and pumps.

Published
2024
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