SIM‐NET: A View‐Based Semantic Similarity Model for <i>Ad Hoc</i> Networks of Geospatial Databases

Bakillah, Mohamed; Bédard, Yvan; Mostafavi, Mir Abolfazl; Brodeur, Jean

doi:10.1111/j.1467-9671.2009.01172.x

Cited by 7 publications

(7 citation statements)

References 40 publications

(51 reference statements)

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“…As a result, only a few studies on change detection in virtual semantic 3D city models have been published so far, some of the earliest include (Bakillah et al, 2009) and (Redweik and Becker, 2015). Recently, (Nguyen et al, 2017) was one of the first to introduce graphs as a means to represent, store and compare CityGML datasets.…”

Section: Introductionmentioning

confidence: 99%

Modelling Changes, Stakeholders and Their Relations in Semantic 3d City Models

Nguyen

Kolbe

2021

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. Urban digital twins have been increasingly adopted by cities worldwide. Digital twins, especially semantic 3D city models as key components, have quickly become a crucial platform for urban monitoring, planning, analyses and visualization. However, as the massive influx of data collected from cities accumulates quickly over time, one major problem arises as how to handle different temporal versions of a virtual city model. Many current city modelling deployments lack the capability for automatic and efficient change detection and often replace older city models completely with newer ones. Another crucial task is then to make sense of the detected changes to provide a deep understanding of the progresses made in the cities. Therefore, this research aims to provide a conceptual framework to better assist change detection and interpretation in virtual city models. Firstly, a detailed hierarchical model of all potential changes in semantic 3D city models is proposed. This includes appearance, semantic, geometric, topological, structural, Level of Detail (LoD), auxiliary and scoped changes. In addition, a conceptual approach to modelling most relevant stakeholders in smart cities is presented. Then, a model - reality graph is used to represent both the different groups of stakeholders and types of changes based on their relative interest and relevance. Finally, the study introduces two mathematical methods to represent the relevance relations between stakeholders and changes, namely the relevance graph and the relevance matrix.

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Section: Introductionmentioning

confidence: 99%

Modelling Changes, Stakeholders and Their Relations in Semantic 3d City Models

Nguyen

Kolbe

2021

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…Progress or change detection in virtual semantic 3D city models (mostly encoded in CityGML) is not new but due to its technical difficulties, only a few studies have been published so far, such as by (Bakillah et al, 2009) and (Redweik and Becker, 2015). The technical challenge of this problem can basically be explained by understanding the key concepts and characteristics of CityGML itself.…”

Section: Introductionmentioning

confidence: 99%

A Multi-Perspective Approach to Interpreting Spatio-Semantic Changes of Large 3d City Models in Citygml Using a Graph Database

Nguyen

Kolbe

2020

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. In the age of virtualization, rapid urbanization and fierce competition, more and more “digital twins” of real cities are being created as a time, cost-efficient and especially user-oriented solution to many problems in urban planning and management. One prominent task is to efficiently detect progresses made by a city based on their virtual 3D city models recorded over the years, and then interpret them accordingly with respect to different groups of users and stakeholders involved in the process. The first half of the problem, namely automated change detection in city models, has been addressed in recent studies. The other half of the problem however, namely a user-oriented interpretation of detected changes, still remains. Thus, based on the current findings, this research extends the conceptual models and definition of different types of edit operations between city models using a graph database, where the graph representations of city models are also stored. New rules and conditions are then provided to further categorize these changes based on their semantic contents. Considering the different expectations and requirements of different groups of users and stakeholders, the research aims to provide a multi-perspective interpretation of such categorized changes.

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“…As explained in previous work [50], to be efficient and have a wide scope, the matchmaker component should include different levels of matching, including syntactic, lexical, structural, and semantic matching. It is also desirable that the matchmaking mechanism produces both qualitative and quantitative results (i.e., a semantic relation and a semantic similarity), such as in Bakillah et al [60], to improve the interpretation of the relation between a query and a capability description. On the other hand, the reasoning services include an inference service that uses rules to infer new facts from existing facts.…”

Section: Requests Advertisesmentioning

confidence: 99%

Semantic Interoperability of Sensor Data with Volunteered Geographic Information: A Unified Model

Bakillah

Liang

Zipf

et al. 2013

IJGI

Self Cite

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Abstract:The increasing availability of sensor devices has resulted in important volumes of sensor data, which has raised the issue of making these data fully discoverable and interpretable by applications and end-users. The idea of OGC Sensor Web Enablement (SWE) has addressed this issue by proposing a set of standards to enable accessibility of sensor data over the Web. Similarly, there is a growing interest in volunteered geographic information (VGI). Considering that several researchers have highlighted the potential of this new type of information as a complement to existing, "traditional" data, it becomes important to develop frameworks to support the integration of VGI from several sources and with other types of data. In this paper, we make a first step in this direction by proposing a framework for the semantic interoperability of sensor data and VGI. After having performed an investigation of the types of VGI applications, we have developed a conceptual model of VGI aligned with relevant ISO standards for describing geospatial features. The purpose of this model is to support the generation of common descriptions for VGI applications, which will act as interfaces to higher-level services, such as discovery and reasoning services, in order to be exploited in conjunction with sensor data by client applications. This process is described through architecture for semantic interoperability of sensor data and VGI that we have developed and that we intend to use to set guidelines for future research on integration of VGI in sensor data cyberinfrastructures. We illustrate the

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SIM‐NET: A View‐Based Semantic Similarity Model for Ad Hoc Networks of Geospatial Databases

Cited by 7 publications

References 40 publications

Modelling Changes, Stakeholders and Their Relations in Semantic 3d City Models

Modelling Changes, Stakeholders and Their Relations in Semantic 3d City Models

A Multi-Perspective Approach to Interpreting Spatio-Semantic Changes of Large 3d City Models in Citygml Using a Graph Database

Semantic Interoperability of Sensor Data with Volunteered Geographic Information: A Unified Model

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