'Join algorithms' presentation slideshows

Online Aggregation

Online Aggregation. Joseph M. Hellerstein Peter J. Haas Helen J. Wang. Motivation for Online Aggregation. Traditional aggregation takes a long time to return a very small final result from a large amount of data The result does not have to be very precise!

690 views • 51 slides

Chapter 5 Parallel Join

Chapter 5 Parallel Join. 5.1 Join Operations 5.2 Serial Join Algorithms 5.3 Parallel Join Algorithms 5.4 Cost Models 5.5 Parallel Join Optimization 5.6 Summary 5.7 Bibliographical Notes 5.8 Exercises. 5.1. Join Operations.

512 views • 39 slides

Query Processing and Optimizing on SSDs

Query Processing and Optimizing on SSDs. Flash Group Qingling Cao qingling1220@sina.com. Outline. Introduction. Page Layout on SSD. Scan Approaches. Join Algorithms. Conclusion. Outline. Introduction. Page Layout on SSD. Scan Approaches. Join Algorithms. Conclusion.

480 views • 38 slides

Evaluating Window Joins over Unbounded Streams

427 views • 35 slides

On Link-based Similarity Join

VLDB 2011. Presenter: Reynold Cheng Department of Computer Science The University of Hong Kong ckcheng@cs.hku.hk. On Link-based Similarity Join. A joint work with: Liwen Sun, Xiang Li, David Cheung (University of Hong Kong) Jiawei Han (University of Illinois Urbana Champaign).

498 views • 32 slides

Indexing and Querying XML Data for Regular Path Expressions

Indexing and Querying XML Data for Regular Path Expressions. Quanzhong Li and Bongki Moon Dept. of Computer Science University of Arizona VLDB 2001. Querying XML. XML has tree structured data model. Queries involve navigating data using regular path expressions.(e.g., XPath)

397 views • 29 slides