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Home / Proceedings / Proceedings of the AAAI Conference on Human Computation and Crowdsourcing

Parallel Task Routing for Crowdsourcing

February 1, 2023

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Authors

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld

University of Washington,Microsoft Research,Indian Institute of Technology, Delhi,University of Washington


DOI:

10.1609/hcomp.v2i1.13170


Abstract:

An ideal crowdsourcing or citizen-science system would route tasks to the most appropriate workers, but the best assignment is unclear because workers have varying skill, tasks have varying difficulty, and assigning several workers to a single task may significantly improve output quality. This paper defines a space of task routing problems, proves that even the simplest is NP-hard, and develops several approximation algorithms for parallel routing problems. We show that an intuitive class of requesters' utility functions is submodular, which lets us provide iterative methods for dynamically allocating batches of tasks that make near-optimal use of available workers in each round. Experiments with live oDesk workers show that our task routing algorithm uses only 48% of the human labor compared to the commonly used round-robin strategy. Further, we provide versions of our task routing algorithm which enable it to scale to large numbers of workers and questions and to handle workers with variable response times while still providing significant benefit over common baselines.

Topics: HCOMP

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HOW TO CITE:

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld Parallel Task Routing for Crowdsourcing Proceedings of the AAAI Conference on Human Computation and Crowdsourcing (2014) 45251.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld Parallel Task Routing for Crowdsourcing HCOMP 2014, 45251.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld (2014). Parallel Task Routing for Crowdsourcing. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, 45251.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld. Parallel Task Routing for Crowdsourcing. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing 2014 p.45251.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld. 2014. Parallel Task Routing for Crowdsourcing. "Proceedings of the AAAI Conference on Human Computation and Crowdsourcing". 45251.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld. (2014) "Parallel Task Routing for Crowdsourcing", Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, p.45251

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld, "Parallel Task Routing for Crowdsourcing", HCOMP, p.45251, 2014.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld. "Parallel Task Routing for Crowdsourcing". Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, 2014, p.45251.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld. "Parallel Task Routing for Crowdsourcing". Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, (2014): 45251.

Jonathan Bragg,Andrey Kolobov,Mausam Mausam,Daniel Weld. Parallel Task Routing for Crowdsourcing. HCOMP[Internet]. 2014[cited 2023]; 45251.


ISSN: 2769-1349


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