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Abdeltawab Hendawi Abdulssalam Bannur PowerPoint Presentation
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Abdeltawab Hendawi Abdulssalam Bannur
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  1. Qurk : Query Processing with PeopleByMIT Computer science and Artificial Intelligence lab http://db.csail.mit.edu/Ideas CIDR 2011 Abdeltawab Hendawi AbdulssalamBannur

  2. What is Query Processing with People? • Found by Amazon • It is a service allows users to post short tasks that other users can receive a small amount of money for completing • Tasks include: Labeling images, Extracting some data, comparing images and videos,…

  3. What is Qurk? A novel query processing system for allowing crowd-powered processing of relational databases. Why Qurk? In some applications, some relational operations require humans interaction such as: 1- Equijoin to identify equal items such as image or video comparing. 2- Sort many items based on their buyers reviews

  4. Qurk System Diagram

  5. Optimization in Qurk: Is based on cost model that consists of 1- Cost, price for accomplishing a certian unit of task 2- Confidence, the number of turkers who must agree on answer before it is used 3- Latency, the amount of time that the user is willing to wait for task to complete

  6. Query language: Is written in SQL Like language • Example: Using the Qurk UDF language, the user defines isFlower as the following task:

  7. Thanks