Quotation Neumaier, Sebastian, Umbrich, Jürgen. 2016. Measures for assessing the data freshness in Open Data portals . In 2nd International Conference on Open and Big Data (OBD), Hrsg. IEEE, 17-24. Vienna, Austria: IEEE.


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Abstract

Many applications and use cases which consume Open Data rely on up-to-date information. However, scarcely any major Open Data portal provides the users with tangible on how current the data sources are. In order to create a freshness metrics that would solve the mentioned issues, we need to i) learn the change history of a data source and ii) apply a heuristic to estimate how up-to-date a data source is. The following paper assesses which information about the change behaviour of a data source in an Open Data portal are available to derive such a change history. In addition, the paper examines and evaluates different freshness estimation heuristics and establishes a freshness metric for Open Data sources.

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Publication's profile

Status of publication Published
Affiliation WU
Type of publication Contribution to conference proceedings
Language English
Title Measures for assessing the data freshness in Open Data portals
Title of whole publication 2nd International Conference on Open and Big Data (OBD)
Editor IEEE
Page from 17
Page to 24
Location Vienna, Austria
Publisher IEEE
Year 2016
URL http://dx.doi.org/10.1109/OBD.2016.10

Associations

Projects
ADEQUATe: Analytics & Data Enrichment to improve the QUAliTy of Open Data
People
Neumaier, Sebastian (Details)
Umbrich, Jürgen (Former researcher)
Organization
Applied Information Technology (Details)
Research areas (ÖSTAT Classification 'Statistik Austria')
1103 Analysis (Details)
1109 Information and data processing (Details)
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