CubeViz: The RDF DataCube Browser.

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CubeViz is a facetted browser for statistical data utilizing the RDF Data Cube vocabulary which is the state-of-the-art in representing statistical data in RDF. This vocabulary is compatible with SDMX and increasingly being adopted. Based on the vocabulary and the encoded Data Cube, CubeViz is generating a facetted browsing widget that can be used to filter interactively observations to be visualized in charts. Based on the selected structure, CubeViz offer beneficiary chart types and options which can be selected by users.

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In order to hide the complexity of the RDF Data Cube vocabulary from users and to facilitate the browsing and exploration of DataCubes we developed the RDF DataCube browser CubeViz. CubeViz can be divided into two parts, both developed as an extension of OntoWiki:

  1. Faceted data selection component, which queries the structural part of a selected RDF graph containing DataCube resources.
  2. Chart visualization component, which queries observations (selected by the faceted selection component) and visualize them with suitable charts.

CubeViz renders facets according to the DataCube vocabulary to select data on the first component, using SPARQL as the query language. Currently, the following facets are available:

  1. Selection of a DataCube DataSet
  2. Selection of a DataCube Slice
  3. Selection of a specific measure and attribute (unit) property encoded in the respective DataCube dataset.
  4. Selection of a set of dimension elements that are part of the dimensions encoded in the respective DataCube data set

Current Team

Publications

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News

AKSW Colloquium “Knowledge Extraction and Presentation” on Monday, July 28, 3.00 p.m. in Room P702 ( 2014-07-24T11:55:13+02:00 by Konrad Höffner)

2014-07-24T11:55:13+02:00 by Konrad Höffner

Knowledge Extraction and Presentation On Monday, July 28,  in room P702 at 3.00 p.m., Edgard Marx proposes a question answering system. He has a computer science background (BSc. and MSc. in Computer Science/PUC-Rio) and is a member of AKSW (Agile Knowledge Engineering and Semantic Web). Read more about "AKSW Colloquium “Knowledge Extraction and Presentation” on Monday, July 28, 3.00 p.m. in Room P702"

[CfP] Semantic Web Journal: Special Issue on Question Answering over Linked Data ( 2014-07-14T16:58:46+02:00 by Dr. Axel-C. Ngonga Ngomo)

2014-07-14T16:58:46+02:00 by Dr. Axel-C. Ngonga Ngomo

Dear all, The Semantic Web Journal is launching a special issue on Question Answering over Linked Data, soliciting original papers that * address the challenges involved in question answering over linked data, * present resources and tools to support question answering over linked data, or * describe question answering systems and applications. Read more about "[CfP] Semantic Web Journal: Special Issue on Question Answering over Linked Data"

New Version of FOX ( 2014-07-14T16:57:11+02:00 by Dr. Axel-C. Ngonga Ngomo)

2014-07-14T16:57:11+02:00 by Dr. Axel-C. Ngonga Ngomo

Dear all, We are very pleased to announce a new version of FOX [1]. Several improvements have been carried out: (1) We have fixed minor issues in the code. In addition, we have updated several libraries. (2) As a result, the FOX output parameters have changed minimally. Read more about "New Version of FOX"

AKSW Colloquium “Combination of Topic Modeling and Semantic Web” on Monday, June 30 ( 2014-06-26T10:12:50+02:00 by Konrad Höffner)

2014-06-26T10:12:50+02:00 by Konrad Höffner

Combination of Topic Modeling and Semantic Web On Monday, June 30, at 3.00 p.m. in room Paulinum 702, Michael Röder will present his yearly PhD progress report “Combination of Topic Modeling and Semantic Web”. The presentation addresses the usage of Topic Modeling in the area of Semantic Web. Read more about "AKSW Colloquium “Combination of Topic Modeling and Semantic Web” on Monday, June 30"

AKSW Colloquium Guest Talk “SWeeT Web of Heritage” on Wednesday, July 2 ( 2014-06-26T10:03:13+02:00 by Konrad Höffner)

2014-06-26T10:03:13+02:00 by Konrad Höffner

SWeeT Web of Heritage On Wednesday, July 2, at 1.30 p.m. in room P702, T B Dinesh from Janastu, a non-profit organisation providing free open source software, will present the SWeeT Web of Heritage. Read more about "AKSW Colloquium Guest Talk “SWeeT Web of Heritage” on Wednesday, July 2"