Efficiently updating materialized views
SIGMOD '86 Proceedings of the 1986 ACM SIGMOD international conference on Management of data
Crowdsourcing systems on the World-Wide Web
Communications of the ACM
Human computation: a survey and taxonomy of a growing field
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
CrowdDB: answering queries with crowdsourcing
Proceedings of the 2011 ACM SIGMOD International Conference on Management of data
Deco: declarative crowdsourcing
Proceedings of the 21st ACM international conference on Information and knowledge management
Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining
Proceedings of the 22nd international conference on World Wide Web
An introduction to human computation and games with a purpose
ICWE'13 Proceedings of the 13th international conference on Web Engineering
Query optimization over crowdsourced data
Proceedings of the VLDB Endowment
Mobility and social networking: a data management perspective
Proceedings of the VLDB Endowment
Question selection for crowd entity resolution
Proceedings of the VLDB Endowment
Answering planning queries with the crowd
Proceedings of the VLDB Endowment
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Deco is a system that enables declarative crowdsourcing: answering SQL queries posed over data gathered from the crowd as well as existing relational data. Deco implements a novel push-pull hybrid execution model in order to support a flexible data model and a precise query semantics, while coping with the combination of latency, monetary cost, and uncertainty of crowdsourcing. We demonstrate Deco using two crowdsourcing platforms: Amazon Mechanical Turk and an in-house platform, to show how Deco provides a convenient means of collecting and querying crowdsourced data.