dbcells - an open and global multi-scale linked cells

DBCells – an open and global multi-scale linked cells

Universidade Federal do MaranhãoInstituto Federal do Maranhão

Outline

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Motivation

How to reuse model’s data ?

How to reuse model’s data ?

Area expansion

Open Linked data

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Figure 1. From data to open linked data.

Open Linked data

Figure 2 - Five-stars rating. Source: http://5stardata.info/en/

A global open linked data

Figure 3 - Linked open data cloud. Source: lod-cloud.net. Last updated: 2014-08-30

Open Science

Dbcells dataset

Publication layer

Architecture: dbcells dataset

Cellular space

Cellular space

Figure 4. TerraME and cellular space. Source: http://www.terrame.org/doku.php

Cellular space in the TerraLib

Cellular space

Divides the space in regular cells

Associates each cell to an identifier

dbcells.org/cl015378

Represents each cell as an RDF graph

dbcells.org/cl015378

dbpedia:resource/Altamira

<dbcells:parent>

-3.202778

-52.205833

100km2

<wgs84_pos:lat>

<wgs84_pos:lon>

<dbcells:resolution>

DbCells Dataset

DbPedia Dataset

dbcells.org/cl015378“The vision for RDF was to provide a minimalist knowledge representation for the Web”.

(Shadbot et. al. 2006)

Dbcells dataset

Publication layer

Architecture: multi-scale relations

Multi-scale relations

Multi-scale relations

Figure 5. Representation of strategies for spatial coupling in the case of regular cells. Source: [Moreira et al. 2008]

Multi-scale relations

URI:http://dbcells.org/onto/relatedTo

URI:http://dbcells.org/cl015378

URI:http://dbcells.org/cl6239

URI:http://dbcells.org/cl05356

URI:http://dbcells.org/cl5682

URI:http://dbcells.org/cl3278

Multi-scale relations

Models at different scales

ClimateDataset

URI:http://dbcells.org/cl015378

URI:http://dbcells.org/cl04379

Land Use Dataset

Social Behaviour

Dataset

The relationships between cellular spaces allow the reuse of models at different scales and resolutions. For example, a land use model at a finer scale can use results of a climate model in a coarser scale

Dbcells dataset

Publication layer

Architecture: network relations

Multi-scale relations

Networkrelations

Network relations

Figure 6. Schematic representation of a network-based spatial relation between cell objects in Scale 1 and point objects in Scale 2.Source: [Moreira et al. 2008]

Dbcells dataset

Publication layer

Architecture: models

Multi-scale relations

Networkrelations

Land Use data set

Climate data set

The publication layer includes a dataset of cellular space, multi- scale relationships and open linked data models.

M1:cell1 dbcells:cl0151378rdfs:sameAs

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>PREFIX owl: <http://www.w3.org/2002/07/owl#>PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>PREFIX dbcells: <http://dbcells.org/>PREFIX wgs84_pos: <http://www.w3.org/2003/01/geo/wgs84_pos#>SELECT ?y ?k

WHERE {?x dbcells:parent ?y. ?k owl:sameAs ?x. FILTER regex(?y, "ATALAIA DO NORTE")}

k y

cells1 ATALAIA DO NORTE

Architecture: models (linking to dbcells)sp

arql

Dbcells dataset

Publication layer

Architecture: web of data

Multi-scale relations

Networkrelations

HTTP HTTP HTTP

Web of data

Land Use data set

Climate data set

HTTP HTTP

The web of data layer links the cellular space to existing datasets, like Geonames, DBPedia and SWEET Ontology.

Web of data layer

Land Use Dataset

ClimateDataset

Social Behaviour

Dataset

DBCells

GeoNames

DBPedia

....

....

....

SWEET Ontology

Dbcells dataset

Publication layer

Architecture: Data access and storage layer

Multi-scale relations

Networkrelations

HTTP HTTP HTTP

Web of data

Land Use data set

Climate data set

HTTP HTTP

Integration web and local dataData access and storage layer

HTTP

The data access and storage layer integrate local and web data, providing a transparent access and storage for modeling tools.

Dbcells dataset

Publication layer

Architecture: model and user layers

Multi-scale relations

Networkrelations

HTTP HTTP HTTP

Web of data

Land Use data set

Climate data set

HTTP HTTP

Integration web and local dataData access and storage layer

HTTP

Model AModel layer Model B Model C Model D

User layer

The model layer uses and shares data provided by the lower layers.

The user layer runs and reproduces the experiment of a particular model.

Dbcells dataset

Publication layer

Architecture

Multi-scale relations

Networkrelations

HTTP HTTP HTTP

Web of data

Land Use data set

Climate data set

HTTP HTTP

Integration web and local dataData access and storage layer

HTTP

Model AModel layer Model B Model C Model D

User layer

Challenges

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Final remarks

Final remarks

References

Thank you