about
our research group
people
our seminars
media
news
publications
geospatial resources
our data+code
global building morphology indicators
roofpedia
3d city index
open building data
open data SG
join
openings
why us
prospective students
NUS courses
student initiated projects
fellowships
contact
2
Urbanity: automated modelling and analysis of multidimensional networks in cities
Urban networks play a vital role in connecting multiple urban components and developing our understanding of cities and urban systems. …
Winston Yap
,
Rudi Stouffs
,
Filip Biljecki
PDF
Cite
DOI
Uncovering the challenges of urban digital twins
Urban digital twins, as representations of physical assets in the cities, enable two- way interaction with real-world counterparts, …
Binyu Lei
,
Patrick Janssen
,
Jantien Stoter
,
Filip Biljecki
PDF
Cite
Sensitivity of measuring the urban form and greenery using street-level imagery: A comparative study of approaches and visual perspectives
Street View Imagery (SVI) is crucial in estimating indicators such as Sky View Factor (SVF) and Green View Index (GVI), but (1) …
Filip Biljecki
,
Tianhong Zhao
,
Liang Xiucheng
,
Hou Yujun
PDF
Cite
DOI
Insights in a city through the eyes of Airbnb reviews: Sensing urban characteristics from homestay guest experiences
There is a growing interest in deriving insights about cities from crowdsourced data. We advance the discourse by employing homestay …
Wang Jiaxuan
,
Yoong Shin Chow
,
Filip Biljecki
PDF
Cite
DOI
How spatio-temporal resolution impacts urban energy calibration
Building Energy Modeling tools help forecast the energy performance of buildings. Urban energy models (UBEMs) emerged as important …
Aysegul Demir Dilsiz
,
Kingsley E. Nweye
,
Allen J. Wu
,
Jérôme H. Kämpf
,
Filip Biljecki
,
Zoltan Nagy
PDF
Cite
DOI
Revealing spatio-temporal evolution of urban visual environments with street view imagery
The visual landscape plays a pivotal role in urban planning and healthy cities. Recent studies of visual evaluation focus on either …
Liang Xiucheng
,
Tianhong Zhao
,
Filip Biljecki
PDF
Cite
DOI
Developing a multiview spatiotemporal model based on deep graph neural networks to predict the travel demand by bus
The accurate prediction of travel demand by bus is crucial for effective urban mobility demand management. However, most models of …
Tianhong Zhao
,
Zhengdong Huang
,
Wei Tu
,
Filip Biljecki
,
Long Chen
PDF
Cite
DOI
Automatic assessment of public open spaces using street view imagery
Public open space (POS) is essential to urban areas. Assessing them usually requires tedious approaches such as fieldwork and manual …
Chen Shuting
,
Filip Biljecki
PDF
Cite
DOI
Quality of crowdsourced geospatial building information: A global assessment of OpenStreetMap attributes
Geospatial data of the building stock is essential in many domains pertaining to the built environment. These datasets are often …
Filip Biljecki
,
Yoong Shin Chow
,
Kay Lee
PDF
Cite
DOI
EUBUCCO v0.1: European building stock characteristics in a common and open database for 200+ million individual buildings
Building stock management is becoming a global societal and political issue, inter alia because of growing sustainability concerns. …
Nikola Milojevic-Dupont
,
Felix Wagner
,
Florian Nachtigall
,
Jiawei Hu
,
Geza Boi Brüser
,
Marius Zumwald
,
Filip Biljecki
,
Niko Heeren
,
Lynn H. Kaack
,
Peter-Paul Pichler
,
Felix Creutzig
PDF
Cite
DOI
Knowledge and topology: A two layer spatially dependent graph neural networks to identify urban functions with time-series street view image
With the rise of GeoAI research, streetscape imagery has received extensive attention due to its comprehensive coverage, abundant …
Yan Zhang
,
Pengyuan Liu
,
Filip Biljecki
PDF
Cite
DOI
Towards Human-centric Digital Twins: Leveraging Computer Vision and Graph Models to Predict Outdoor Comfort
Conventional sidewalk studies focused on quantitative analysis of sidewalk walkability at a large scale which cannot capture the …
Pengyuan Liu
,
Tianhong Zhao
,
Junjie Luo
,
Binyu Lei
,
Mario Frei
,
Clayton Miller
,
Filip Biljecki
PDF
Cite
DOI
Exploring spatiotemporal pattern and agglomeration of road CO2 emissions in Guangdong, China
Road transport is a prominent source of carbon emissions. However, fine-grained regional estimations on road carbon dioxide (CO2) …
Xingdong Deng
,
Chen Wangyang
,
Qingya Zhou
,
Yuming Zheng
,
Hongbao Li
,
Shunyi Liao
,
Filip Biljecki
PDF
Cite
DOI
Challenges of Urban Digital Twins: A Systematic Review and a Delphi Expert Survey
Many challenges to operate digital twins remain, hindering their design and implementation, and are rarely discussed. Furthermore, …
Binyu Lei
,
Patrick Janssen
,
Jantien Stoter
,
Filip Biljecki
PDF
Cite
DOI
InstantCITY: Synthesising morphologically accurate geospatial data for urban form analysis, transfer, and quality control
Generative Adversarial Network (GAN) is widely used in many generative problems, including in spatial information sciences and urban …
Abraham Noah Wu
,
Filip Biljecki
PDF
Cite
DOI
Mining real estate ads and property transactions for building and amenity data acquisition
Acquiring spatial data of fine and dynamic urban features such as buildings remains challenging. This paper brings attention to real …
Chen Xinyu
,
Filip Biljecki
PDF
Cite
DOI
Sensing urban soundscapes from street view imagery
A healthy acoustic environment is an essential component of sustainable cities. Various noise monitoring and simulation techniques have …
Tianhong Zhao
,
Liang Xiucheng
,
Wei Tu
,
Zhengdong Huang
,
Filip Biljecki
PDF
Cite
DOI
Incorporating Networks in Semantic Understanding of Streetscapes: Contextualising Active Mobility Decisions
Planning for active mobility satisfies many fundamental tenets of good urban design and planning. However, planning for active mobility …
Winston Yap
,
Jiat-Hwee Chang
,
Filip Biljecki
PDF
Cite
DOI
A comprehensive framework for evaluating the quality of street view imagery
Street view imagery (SVI) is increasingly in competition with traditional remote sensing sources and assuming its domination in myriads …
Hou Yujun
,
Filip Biljecki
PDF
Cite
DOI
Assessing and benchmarking 3D city models
3D city models are omnipresent in urban management and simulations. However, instruments for their evaluation have been limited. …
Binyu Lei
,
Rudi Stouffs
,
Filip Biljecki
PDF
Cite
DOI
Water View Imagery: Perception and evaluation of urban waterscapes worldwide
Gathering knowledge about physical settings and visual information of places has long been of interest to a wide variety of fields as …
Junjie Luo
,
Tianhong Zhao
,
Lei Cao
,
Filip Biljecki
PDF
Cite
DOI
Home gardening in Singapore: A feasibility study on the utilization of the vertical space of retrofitted high-rise public housing apartment buildings to increase urban vegetable self-sufficiency
In land-scarce cities, high-rise apartment buildings may provide vertical spaces for natural-light home gardening along corridors, …
Shuang Song
,
Jia Chin Cheong
,
Joel S. H. Lee
,
Jonathan K. N. Tan
,
Zhongyu Chiam
,
Srishti Arora
,
Karl J. Q. Png
,
Johanah W. C. Seow
,
Felicia W. S. Leong
,
Ankit Palliwal
,
Filip Biljecki
,
Abel Tablada
,
Hugh T. W. Tan
PDF
Cite
DOI
Comparing street view imagery and aerial perspectives in the built environment
Street view imagery (SVI) has gained prominence in the past decade, offering a new perspective to map and understand cities. It …
Leon Gaw
,
Chen Shuting
,
Yoong Shin Chow
,
Kay Lee
,
Filip Biljecki
PDF
Cite
DOI
Dataset for urban scale building stock modelling: Identification and review of potential data collection approaches
Construction materials play an important role in environmental impacts and make cities big resource consumers. To assess the …
Wanyu Pei
,
Filip Biljecki
,
Rudi Stouffs
PDF
Cite
DOI
Local Climate Zones: Lessons from Singapore and potential improvement with street view imagery
Urban heat island (UHI) is considered a serious environmental issue in highly urbanized cities such as Singapore. To better quantify …
Marcel Ignatius
,
Ruohan Xu
,
Hou Yujun
,
Liang Xiucheng
,
Tianhong Zhao
,
Shisheng Chen
,
Nyuk Hien Wong
,
Filip Biljecki
PDF
Cite
DOI
Use cases for district-scale urban digital twins
Efficient usage and management of abundant data are crucial for organisations, especially in the light of a lack of in-depth IT …
Pradeep Alva
,
Filip Biljecki
,
Rudi Stouffs
PDF
Cite
DOI
Semantic Riverscapes: Perception and evaluation of linear landscapes from oblique imagery using computer vision
Traditional approaches for visual perception and evaluation of river landscapes adopt on-site surveys or assessments through …
Junjie Luo
,
Tianhong Zhao
,
Lei Cao
,
Filip Biljecki
PDF
Cite
DOI
Generative Adversarial Networks in the Built Environment: A Comprehensive Review of the Application of GANs across Data Types and Scales
Generative Adversarial Networks (GANs) are a type of deep neural network that have achieved many state-of-the-art results for …
Abraham Noah Wu
,
Rudi Stouffs
,
Filip Biljecki
PDF
Cite
DOI
Unsupervised machine learning in urban studies: A systematic review of applications
Unsupervised learning (UL) has a long and successful history in untangling the complexity of cities. As the counterpart of supervised …
Wang Jing
,
Filip Biljecki
PDF
Cite
DOI
A review of spatially-explicit GeoAI applications in Urban Geography
Urban Geography studies forms, social fabrics, and economic structures of cities from a geographic perspective. Catalysed by the …
Pengyuan Liu
,
Filip Biljecki
PDF
Cite
DOI
3D building metrics for urban morphology
Urban morphology is important in a broad range of investigations across the fields of city planning, transportation, climate, energy, …
Anna Labetski
,
Stelios Vitalis
,
Filip Biljecki
,
Ken Arroyo Ohori
,
Jantien Stoter
PDF
Cite
DOI
3D building reconstruction from single street view images using deep learning
3D building models are an established instance of geospatial information in the built environment, but their acquisition remains …
Pang Hui En
,
Filip Biljecki
PDF
Cite
DOI
Free and open source urbanism: Software for urban planning practice
Free and open source tools present numerous opportunities to support current urban planning practice. However, their overview is …
Winston Yap
,
Patrick Janssen
,
Filip Biljecki
PDF
Cite
DOI
ifc2indoorgml: An open-source tool for generating IndoorGML from IFC
The interest in 3D indoor models has been continuously growing. Most such models are made available as point clouds or BIM (e.g., IFC), …
AA Diakite
,
L Díaz-Vilariño
,
Filip Biljecki
,
Ü Isikdag
,
S Simmons
,
K Li
,
S Zlatanova
PDF
Cite
DOI
Infrared thermography in the built environment: A multi-scale review
The paper presents a review on major contributions in infrared thermography to study the built environment at multiple scales. To …
Miguel Martin
,
Adrian Chong
,
Filip Biljecki
,
Clayton Miller
PDF
Cite
DOI
Global Building Morphology Indicators
Characterising and analysing urban morphology is a continuous task in urban data science, environmental analyses, and many other …
Filip Biljecki
,
Yoong Shin Chow
PDF
Cite
DOI
Population estimation beyond counts---Inferring demographic characteristics
Mapping population distribution at a fine spatial scale is essential for urban studies and planning. Numerous studies, mainly supported …
Noée Szarka
,
Filip Biljecki
PDF
Cite
DOI
GANmapper: geographical data translation
We present a new method to create spatial data using a generative adversarial network (GAN). Our contribution uses coarse and widely …
Abraham Noah Wu
,
Filip Biljecki
PDF
Cite
DOI
Assessing bikeability with street view imagery and computer vision
Studies evaluating bikeability usually compute spatial indicators shaping cycling conditions and conflate them in a quantitative index. …
Koichi Ito
,
Filip Biljecki
PDF
Cite
DOI
Classification of Urban Morphology with Deep Learning: Application on Urban Vitality
There is a prevailing trend to study urban morphology quantitatively thanks to the growing accessibility to various forms of spatial …
Chen Wangyang
,
Abraham Noah Wu
,
Filip Biljecki
PDF
Cite
DOI
Street view imagery in urban analytics and GIS: A review
Street view imagery has rapidly ascended as an important data source for geospatial data collection and urban analytics, deriving …
Filip Biljecki
,
Koichi Ito
PDF
Cite
DOI
Roofpedia: Automatic mapping of green and solar roofs for an open roofscape registry and evaluation of urban sustainability
Sustainable roofs, such as those with greenery and photovoltaic panels, contribute to the roadmap for reducing the carbon footprint of …
Abraham Noah Wu
,
Filip Biljecki
PDF
Cite
Project
Project
DOI
Emerging topics in 3D GIS
Filip Biljecki
,
Rudi Stouffs
,
Mohsen Kalantari
PDF
Cite
DOI
3dfier: automatic reconstruction of 3D city models
Three-dimensional city models are essential to assess the impact that environmental factors will have on citizens, because they are the …
Hugo Ledoux
,
Filip Biljecki
,
Balázs Dukai
,
Kavisha Kumar
,
Ravi Peters
,
Jantien Stoter
,
Tom Commandeur
PDF
Cite
DOI
3D city models for urban farming site identification in buildings
Studies have suggested that there is farming potential in urban residential buildings. However, these studies are limited in scope, …
Ankit Palliwal
,
Shuang Song
,
Hugh Tiang Wah Tan
,
Filip Biljecki
PDF
Cite
Project
DOI
Reference study of IFC software support: The GeoBIM benchmark 2019---Part I
Industry Foundation Classes (IFC), the buildingSMART open standard for BIM, is underused with respect to its promising potential, …
Francesca Noardo
,
Thomas Krijnen
,
Ken Arroyo Ohori
,
Filip Biljecki
,
Claire Ellul
,
Lars Harrie
,
Helen Eriksson
,
Lorenzo Polia
,
Nebras Salheb
,
Helga Tauscher
,
Jordi van Liempt
,
Hendrik Goerne
,
Dean Hintz
,
Tim Kaiser
,
Cristina Leoni
,
Artur Warchol
,
Jantien Stoter
PDF
Cite
Project
DOI
Reference study of CityGML software support: The GeoBIM benchmark 2019---Part II
OGC CityGML is an open standard for 3D city models intended to foster interoperability and support various applications. However, …
Francesca Noardo
,
Ken Arroyo Ohori
,
Filip Biljecki
,
Claire Ellul
,
Lars Harrie
,
Thomas Krijnen
,
Helen Eriksson
,
Jordi van Liempt
,
Maria Pla
,
Antonio Ruiz
,
Dean Hintz
,
Nina Krueger
,
Cristina Leoni
,
Leire Leoz
,
Diana Moraru
,
Stelios Vitalis
,
Philipp Willkomm
,
Jantien Stoter
PDF
Cite
Project
DOI
Extending CityGML for IFC-sourced 3D city models
Differences in the scope and intent of the contrasting IFC and CityGML data formats entail that converting the former to the latter …
Filip Biljecki
,
Joie Lim
,
James Crawford
,
Diana Moraru
,
Helga Tauscher
,
Amol Konde
,
Kamel Adouane
,
Simon Lawrence
,
Patrick Janssen
,
Rudi Stouffs
PDF
Cite
Project
DOI
Exploration of open data in Southeast Asia to generate 3D building models
This article investigates the current status of generating 3D building models across 11 countries in Southeast Asia from publicly …
Filip Biljecki
PDF
Cite
Project
DOI
Visualising detailed CityGML and ADE at the building scale
There is an increasing activity in developing workflows and implementations to convert BIM data into CityGML. However, there are still …
Joie Lim
,
Patrick Janssen
,
Filip Biljecki
PDF
Cite
Project
DOI
»
Cite
×