QueryMarket Demonstration: Pricing for Online Data Markets
QueryMarket Demonstration: Pricing for Online Data Markets
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DOI：
10.14778/2367502.2367548
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发表时间：
2012-08
期刊：
影响因子：
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通讯作者：
Paraschos Koutris;P. Upadhyaya;M. Balazinska;Bill Howe;Dan Suciu
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作者：
Paraschos Koutris;P. Upadhyaya;M. Balazinska;Bill Howe;Dan Suciu
越来越多的数据在网上进行买卖。为了促进这种交易，出现了在线数据市场，为卖家提供对其数据的观点定价的服务，买家则购买这种观点。这些市场既不支持销售即席查询(不是指定的视图之一)，也不支持连接数据集的查询。我们介绍了QueryMarket，这是一个原型数据市场，它可以从手动定价的视图中自动推断即席查询的价格，包括那些带有连接的查询。我们将这种功能称为“基于查询的定价”，并描述了它如何优于现有的定价方法，以及它如何为卖家提供更灵活的定价。然后，我们将展示QueryMarket如何实现基于查询的定价，以及如何为其计算的价格生成解释。
Increasingly data is being bought and sold online. To facilitate such transactions, online data market-places have emerged to provide a service for sellers to price views on their data, and buyers to buy such views. These marketplaces neither support the sale of ad-hoc queries (that are not one of the specified views), nor do they support queries that join datasets. We present QueryMarket, a prototype data marketplace that automatically extrapolates prices to ad-hoc queries, including those with joins, from the manually priced views. We call this capability "query-based pricing" and describe how it is superior to existing pricing methods, and how it provides more flexible pricing for the sellers. We then show how QueryMarket implements query-based pricing and how it generates explanations for the prices it computes.