arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1912.04444cs.HC
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通过大规模众包实现高效数据汇集的实践

Practice of Efficient Data Collection via Crowdsourcing at Large-Scale

Alexey Drutsa, Viktoriya Farafonova, Valentina Fedorova, Olga Megorskaya, Evfrosiniya Zerminova, Olga Zhilinskaya

摘要:

现代机器学习算法需要大量的数据集进行训练。众包已经成为一种流行的方法,可以在更短的时间内标记大型数据集,并且与有限数量的专家相比,成本更低。然而,由于众包表演者是非专业的,并且在专业知识水平上各不相同,这样的标签比从专家那里获得的标签要嘈杂得多。因此,为了在有限的预算范围内收集高质量的数据,需要使用特殊的技术,如增量重新标记、汇总和定价。我们通过公共众包市场介绍了数据标签,并提出了有效标签收集的关键组成部分。我们展示了如何选择一个真正的标签收集任务,实验选择标签过程的设置,并在Yandex上启动标签收集项目。Toloka是最大的众包市场之一。这些项目将在真正的人群中运行。我们还提出了主要算法的聚合,增量重新标记,并在众包定价。特别是,我们首先讨论如何将这三个组件连接起来,以构建一个高效的标签收集过程;其次,分享应用这些算法和构建大规模标签收集管道的丰富行业经验(强调最佳实践和常见陷阱)。

英文摘要:

Modern machine learning algorithms need large datasets to be trained. Crowdsourcing has become a popular approach to label large datasets in a shorter time as well as at a lower cost comparing to that needed for a limited number of experts. However, as crowdsourcing performers are non-professional and vary in levels of expertise, such labels are much noisier than those obtained from experts. For this reason, in order to collect good quality data within a limited budget special techniques such as incremental relabelling, aggregation and pricing need to be used. We make an introduction to data labeling via public crowdsourcing marketplaces and present key components of efficient label collection. We show how to choose one of real label collection tasks, experiment with selecting settings for the labelling process, and launch label collection project at Yandex.Toloka, one of the largest crowdsourcing marketplace. The projects will be run on real crowds. We also present main algorithms for aggregation, incremental relabelling, and pricing in crowdsourcing. In particular, we, first, discuss how to connect these three components to build an efficient label collection process; and, second, share rich industrial experiences of applying these algorithms and constructing large-scale label collection pipelines (emphasizing best practices and common pitfalls).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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