Object-Relational Database Representations for Text Indexing
Panagiotis Papadakos,
Yannis Theoharis,
Yannis Marketakis
et al.
Abstract:One of the distinctive features of Information Retrieval systems comparing to Database Management systems, is that they offer better compression for posting lists, resulting in better I/O performance and thus faster query evaluation. In this paper, we introduce database representations of the index that reduce the size (and thus the disk I/Os) of the posting lists. This is not achieved by redesigning the DBMS, but by exploiting the non 1NF features that existing Object-Relational DBM systems (ORDBMS) already o… Show more
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