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- W1894902829 abstract "Efficient access to the inverted index data structure is a key aspect for a search engine to achieve fast response times to users' queries. While the performance of an information retrieval IR system can be enhanced through the compression of its posting lists, there is little recent work in the literature that thoroughly compares and analyses the performance of modern integer compression schemes across different types of posting information document ids, frequencies, positions. In this paper, we experiment with different modern integer compression algorithms, integrating these into a modern IR system. Through comprehensive experiments conducted on two large, widely used document corpora and large query sets, our results show the benefit of compression for different types of posting information to the space- and time-efficiency of the search engine. Overall, we find that the simple Frame of Reference compression scheme results in the best query response times for all types of posting information. Moreover, we observe that the frequency and position posting information in Web corpora that have large volumes of anchor text are more challenging to compress, yet compression is beneficial in reducing average query response times." @default.
- W1894902829 created "2016-06-24" @default.
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- W1894902829 date "2014-01-01" @default.
- W1894902829 modified "2023-10-16" @default.
- W1894902829 title "On Inverted Index Compression for Search Engine Efficiency" @default.
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- W1894902829 doi "https://doi.org/10.1007/978-3-319-06028-6_30" @default.
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