Wee LCP

We prove that longest common prefix (LCP) information can be stored in much less space than previously known. More precisely, we show that in the presence of the text and the suffix array, o(n) additional bits are sufficient to answer LCP-queries asymptotically in the same time that is needed to retrieve an entry from the suffix array. This yields the smallest compressed suffix tree with sub-logarithmic navigation time. Key words: Text Indexing, Compressed Data Structures, Suffix Arrays, Longest Common Prefixes

• Type: Journal
• Year: 2010
• Where: IPL
• Authors: Johannes Fischer
• Keywords: IPL 2010, Longest Common Prefix, Longest Common Prefixes, Suffix Arrays