51 search results - page 4 / 11 » Alphabet-Independent Compressed Text Indexing |
DCC
2008
IEEE
14 years 7 months ago
2008
IEEE
Semistatic word-based byte-oriented compression codes are known to be attractive alternatives to compress natural language texts. With compression ratios around 30%, they allow di...
CIKM
2007
Springer
14 years 1 months ago
2007
Springer
Index compression techniques are known to substantially decrease the storage requirements of a text retrieval system. As a side-effect, they may increase its retrieval performanc...
SIGIR
2012
ACM
11 years 10 months ago
2012
ACM
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...
ICDE
1998
IEEE
13 years 11 months ago
1998
IEEE
We propose a new compression algorithm that is tailored to database applications. It can be applied to a collection of records, and is especially e ective for records with many lo...
SPIRE
2001
Springer
13 years 12 months ago
2001
Springer
Most queries to text search engines are ranked or Boolean. Phrase querying is a powerful technique for refining searches, but is expensive to implement on conventional indexes. I...