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Št. zadetkov: 8
Providing Linked Data
Maribel Acosta
Video in druga učna gradiva
Oznake: computer science;semantic web
Leto: 2014 Vir: videolectures.net
Amazon Mechanical Turk
Maribel Acosta
Video in druga učna gradiva
Oznake: computer science;semantic web
Leto: 2014 Vir: videolectures.net
Crowdsourcing Linked Data Quality Assessment
Maribel Acosta
Video in druga učna gradiva
Oznake: computer science;crowdsourcing;semantic web
In this paper we look into the use of crowdsourcing as a means to handle Linked Data quality problems that are challenging to be solved automatically. We analyzed the most common errors encountered in Linked Data sources and classified them according to the extent to which they are likely to be amen ...
Leto: 2013 Vir: videolectures.net
Networks of Linked Data Eddies: An Adaptive Web Query Processing Engine for RDF Data
Maribel Acosta
Video in druga učna gradiva
Oznake: computer science;semantic web
Client-side query processing techniques that rely on the materialization of fragments of the original RDF dataset provide a promising solution for Web query processing. However, because of unexpected data transfers, the traditional optimize-then-execute paradigm, used by existing approaches, is ...
Leto: 2015 Vir: videolectures.net
Diefficiency Metrics: Measuring the Continuous Efficiency of Query Processing Approaches
Maribel Acosta
Video in druga učna gradiva
Oznake: computer science;semantic web
During empirical evaluations of query processing techniques, metrics like execution time, time for the first answer, and throughput are usually reported. Albeit informative, these metrics are unable to quantify and evaluate the efficiency of a query engine over a certain time period – or diefficienc ...
Leto: 2017 Vir: videolectures.net
Providing Linked Data
Barry Norton , Maribel Acosta
Video in druga učna gradiva
Oznake: computer science;semantic web
This module covers the whole spectrum of Linked Data production and exposure. After a grounding in the Linked Data principles and best practices, with special emphasis on the VoID vocabulary, we cover R2RML, operating on relational databases, Open Refine, operating on spreadsheets, and GATECloud, op ...
Leto: 2013 Vir: videolectures.net
ANAPSID: An Adaptive Query Processing Engine for SPARQL Endpoints
Maribel Acosta , Maria Esther Vidal
Video in druga učna gradiva
Oznake: computer science
Following the design rules of Linked Data, the number of available SPARQL endpoints that support remote query processing is quickly growing; however, because of the lack of adaptivity, query executions may frequently be unsuccessful. First, fixed plans identified following the traditional optimize-t ...
Leto: 2011 Vir: videolectures.net
Introduction of the tutorial topics and presenters Microtask crowdsourcing fundamentals
Gianluca Demartini , Maribel Acosta , Elena Simperl
Video in druga učna gradiva
Oznake: computer science;semantic web;crowdsourcing
Microtask crowdsourcing platforms, as one of the most popular instance of social computing technologies, are increasingly used to support massively collaborative projects on semantic content management. In this tutorial we will introduce the most popular approaches to microtask crowdsourcing for Sem ...
Leto: 2013 Vir: videolectures.net
Št. zadetkov: 8
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