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Administrivia

Administrivia. List of potential projects will be out by the end of the week If you have specific project ideas, catch me during office hours (right after class) or email me to set up a meeting Short project proposals (1-2 pages) due in class 3/22 (Thursday after Spring break)

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378 views • 28 slides

Sovereign Information Integration

Sovereign Information Integration. Rakesh Agrawal Jt. Work with Srikant & Evfimievski. Outline. Motivation Problem Statement Protocols Challenges. Information Integration Today. Assumption: Information in each database can be freely shared. Mediator. Q. R. Q. R. Centralized.

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388 views • 26 slides

Estimating the Cost of Operations

Estimating the Cost of Operations. Two candidates for the best logical query plan. Which one to choose?. Initial logical query plan. Why estimate the costs?. Estimating Costs. How can we estimate the number of tuples in an intermediate relation ?

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216 views • 21 slides

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Join size - PowerPoint PPT Presentation

Administrivia

Sovereign Information Integration

Estimating the Cost of Operations