100+ Variable length keys PowerPoint (PPT) Presentations, Variable length keys PPTs

Variable length keys - PowerPoint PPT Presentation

CS 253: Algorithms

CS 253: Algorithms. LZW Data Compression. Data Compression. Reduce the size of data Reduces storage space and hence the cost Reduces time to retrieve and transmit data Compression ratio = original data size / compressed data size. Lossless and Lossy Compression.

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455 views • 29 slides

Last Time Main memory indexing (T trees) and a real system. Optimize for CPU, space, and logging. But things have change

Last Time Main memory indexing (T trees) and a real system. Optimize for CPU, space, and logging. But things have changed drastically! Hardware trend: CPU speed and memory capacity double every 18 months. Memory performance merely grows 10%/yr Capacity v.s. Speed (esp. latency)

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434 views • 24 slides

Chapter 4: Trees

Mark Allen Weiss: Data Structures and Algorithm Analysis in Java. Chapter 4: Trees. Radix Search Trees. Lydia Sinapova, Simpson College. Radix Search Trees. Radix Searching Digital Search Trees Radix Search Trees Multi-Way Radix Trees. Radix Searching. Idea: Examine the search keys

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628 views • 21 slides

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Variable length keys - PowerPoint PPT Presentation

CS 253: Algorithms

Last Time Main memory indexing (T trees) and a real system. Optimize for CPU, space, and logging. But things have change

Chapter 4: Trees