semantic enrichment of the geometric elements of ... · doctorand safta daniela-paula conducator...

SEMANTIC ENRICHMENT OF THE

GEOMETRIC ELEMENTS OF

HISTORICAL BUILDINGS IN THE

DIGITAL MODEL

Doctorand Safta Daniela-Paula

Conducator științific

Prof. univ. dr. ing. Johan Neuner

Technical University

of Civil Engineering

Bucharest

Presentation: Daniela Paula Safta

October 2018

Daniela Paula Safta Iohan Neuner






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a

Here I would replace it whith geodesy

Many people accomplish the digital model of the buildings. For cultural heritage buildings, I think a complex and complete approach is needed.

You can add a lot of information about historical buildings.

So, a semantic modeling makes it possible to add, in addition to geometric data, as much information as possible about architectural elements, their structure, historical, legality, and any

other relevant information related to these constructions.






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First of all I will say something about the word “semantic”. Semantics is a "branch of linguistics that deals with the study of the meanings of words and the evolution of these meanings." More specifically, semantics is the theory of significance (meaning behind words).

A classification of semantic annotation systems as done by Andrews P. et al., 2012.

The tag annotation model The relation annotation model

The attribute annotation model The ontology annotation model






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You can see a minimal annotation, normally, a single word which describe the resource properties.

An attribute annotation element is a pair: the name of the attribute and the value of the attribute.






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The model is more complex than the previous one because the user has to choose two resources and the relationship that links them.

“The relation annotation model can also be used to define relations within a resource”

In the figure below we can distinguish several types of relationships within the resource.






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“This model is based on the notion of semantic annotation.”

Semantic annotations are the most complicated.






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We organized the ontological model in several sub-ontologies in different areas, such as: architecture, history, structure, legal, restoration, location.

An ontology in the architectural field consists of classes. Each class is organized in one or more sub-classes and so on.






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Examples of sub-classes






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Examples of processing






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An example of semantic representation

A wireframe modeling was made for a particular area of the historical monument.






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Semantic Annotation Process [Zeeshan Ahmed]

“Semantic Annotation (SA) refers to the process of indexing and retrieving useful information from documents .“






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The idea of Semantic Web (SW) was introduced by Tim Berners-Lee, the Web's inventor (World Wide Web) as an extension of the existing Web.

Ontology organizes knowledge for later access by end users through the semantic web.






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The semantic web technology






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knowledge and promotion at national and international level; preserving and restoring them when necessary; treat them with the respect they deserve.

Some of these buildings have been built over decades or even more generations, so automated and semiautomatic methods are not to be found at all costs to reduce the time needed for data collection and processing, but on the contrary, I think they deserve the full attention, time, creativity and imagination of man for gathering and processing all data, details and decorations that enchant these masterpieces.

Conclusions

In conclusion, the semantic modeling of a historic building implies a complex interdisciplinary activity, where specialists from all fields need to join forces to create an open-source semantic application and a knowledge acquisition system.

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