Data quality in a big data context

Arolfo, Franco A.; Vaisman, Alejandro Ariel

ponencia en congreso.page.titleprefix
Data quality in a big data context

dc.contributor.author	Arolfo, Franco A.
dc.contributor.author	Vaisman, Alejandro Ariel
dc.date.accessioned	2019-06-14T19:05:27Z
dc.date.available	2019-06-14T19:05:27Z
dc.date.issued	2018
dc.description.abstract	"In each of the phases of a Big Data analysis process, data quality (DQ) plays a key role. Given the particular characteristics of the data at hand, the traditional DQ methods used for relational databases, based on quality dimensions and metrics, must be adapted and extended, in order to capture the new characteristics that Big Data introduces. This paper dives into this problem, re-defining the DQ dimensions and metrics for a Big Data scenario, where data may arrive, for example, as unstructured documents in real time. This general scenario is instantiated to study the concrete case of Twitter feeds. Further, the paper also describes the implementation of a system that acquires tweets in real time, and computes the quality of each tweet, applying the quality metrics that are defined formally in the paper. The implementation includes a web user interface that allows filtering the tweets for example by keywords, and visualizing the quality of a data stream in many different ways. Experiments are performed and their results discussed."	en
dc.identifier.isbn	978-3319-98-397-4
dc.identifier.issn	0302-9743
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/1615
dc.language.iso	en	en
dc.relation	info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-319-98398-1_11
dc.relation	info:eu-repo/grantAgreement/ANPCyT/PICT/2014-0787/AR. Ciudad Autónoma de Buenos Aires
dc.subject	CALIDAD DE DATOS	es
dc.subject	ANALISIS DE DATOS	es
dc.subject	REDES SOCIALES	es
dc.title	Data quality in a big data context	en
dc.type	Ponencias en Congresos	es
dc.type	info:eu-repo/semantics/acceptedVersion
dspace.entity.type	Ponencia en Congreso
itba.description.filiation	Fil: Arolfo, Franco A. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiation	Fil: Vaisman, Alejandro Ariel. Instituto Tecnológico de Buenos Aires; Argentina.