Uncertain data model - PowerPoint PPT Presentation

Probabilistic Data Management

Probabilistic Data Management. Chapter 2: Data Uncertainty Model. Objectives. In this chapter, you will: Learn the formal definition of uncertain data Explore different granularities of data uncertainty Become familiar with different representations of uncertain data

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Efficient Processing of Top- k Queries in Uncertain Databases

Efficient Processing of Top- k Queries in Uncertain Databases. Ke Yi, AT&amp;T Labs Feifei Li, Boston University Divesh Srivastava, AT&amp;T Labs George Kollios, Boston University. Top-k Queries. Extremely useful in information retrieval top-k sellers, popular movies, etc. google. Threshold Alg

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361 views • 21 slides

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