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Index Compression

Index Compression. Adapted from Lectures by Prabhakar Raghavan (Yahoo, Stanford) and Christopher Manning. Plan. Last lecture Index construction Doing sorting with limited main memory Parallel and distributed indexing Today Index compression Space estimation Dictionary compression

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Inverted Index Phase Two

Inverted Index Phase Two. Some Hardware Basics. Access to data in memory is much faster than access to data on disk. Disk seeks: No data is transferred from disk while the disk head is being positioned.

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398 views • 39 slides

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Index Compression

Inverted Index Phase Two