February 2018
Intermediate to advanced
1120 pages
53h 40m
English
Content preview from Handbook of Data Structures and Applications, 2nd Edition
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Data Structures in Web Information Retrieval*
Monika Henzinger
University of Vienna
Index Compression•Index Granularity
51.4Finding Near-Duplicate Documents
Current search engines process thousands of queries per second over a collection of billions of web pages with a sub-second average response time. There are two reasons for this astonishing performance: Massive parallelism and a simple yet efficient data structure, called inverted index.
In this chapter we will describe inverted indices. The parallelism deployed by search engines is quite straightforward: Given a collection of documents and a user query the goal of information retrieval ...
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