Crowdsourced Databases: Query Processing with People

Amazon's Mechanical Turk (\MTurk") service allows users to post short tasks (\HITs") that other users can receive a small amount of money for completing. Common tasks on the system include labelling a collection of images, com- bining two sets of images to identify people which ap...

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Detalhes bibliográficos
Principais autores: Marcus, Adam, Wu, Eugene, Karger, David R., Madden, Samuel R., Miller, Robert C.
Outros Autores: Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Formato: Artigo
Idioma:en_US
Publicado em: CIDR 2011
Acesso em linha:http://hdl.handle.net/1721.1/62827
https://orcid.org/0000-0002-7470-3265
https://orcid.org/0000-0002-0024-5847
https://orcid.org/0000-0002-0442-691X
Descrição
Resumo:Amazon's Mechanical Turk (\MTurk") service allows users to post short tasks (\HITs") that other users can receive a small amount of money for completing. Common tasks on the system include labelling a collection of images, com- bining two sets of images to identify people which appear in both, or extracting sentiment from a corpus of text snippets. Designing a work ow of various kinds of HITs for ltering, aggregating, sorting, and joining data sources together is common, and comes with a set of challenges in optimizing the cost per HIT, the overall time to task completion, and the accuracy of MTurk results. We propose Qurk, a novel query system for managing these work ows, allowing crowd- powered processing of relational databases. We describe a number of query execution and optimization challenges, and discuss some potential solutions.