Compressed Data Structures for Strings
Subtitle: On Searching and Extracting Strings from Compressed Textual Data
Publisher: Atlantis Press (Zeger Karssen)
Published: 2013
Language: eng
Number of pages: 118
ISBN-13: 9789462390324
Subjects: Data compression (computer science); Data structures (computer science); Computer science
Description: Data compression is mandatory to manage massive datasets, indexing is fundamental to query them. However, their goals appear as counterposed: the former aims at minimizing data redundancies, whereas the latter augments the dataset with auxiliary information to speed up the query resolution. In this monograph we introduce solutions that overcome this dichotomy. We start by presenting the use of optimization techniques to improve the compression of classical data compression algorithms, then we move to the design of compressed data structures providing fast random access or efficient pattern matching queries on the compressed dataset. These theoretical studies are supported by experimental evidences of their impact in practical scenarios.