Compressed Perfect Embedded Skip Lists for Quick Inverted-Index Lookups
Large inverted indices are by now common in the construction of web-scale search engines. For faster access, inverted indices are indexed internally so that it is possible to skip quickly over unnecessary documents. To this purpose, we describe how to embed efficiently a compressed perfect skip list in an inverted list.
KeywordsDisjunctive Normal Form Inverted Index Inverted List Document Pointer Binary Expansion
Unable to display preview. Download preview PDF.
- 2.Pugh, W.: A skip list cookbook. Technical report UMIACS-TR-89-72.1, Univ. of Maryland Institute for Advanced Computer Studies, College Park, College Park, MD, USA (1990)Google Scholar
- 4.Witten, I.H., Moffat, A., Bell, T.C.: Managing Gigabytes: Compressing and Indexing Documents and Images, 2nd edn. Morgan Kaufmann Publishers, Los Altos, CA 94022, USA (1999)Google Scholar