272 search results - page 15 / 55 » The compressed permuterm index |
176
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SIGMOD
2009
ACM
16 years 1 days ago
2009
ACM
Column-oriented database systems [19, 23] perform better than traditional row-oriented database systems on analytical workloads such as those found in decision support and busines...
128
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SIGIR
2012
ACM
13 years 2 months ago
2012
ACM
Versioned document collections are collections that contain multiple versions of each document. Important examples are Web archives, Wikipedia and other wikis, or source code and ...
107
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WWW
2008
ACM
16 years 15 days ago
2008
ACM
To solve this problem, we devised the HS-bitmap index, which is hierarchically comprised of compressed data of summary bits. A summary bit in an upper matrix is obtained by logical...
145
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SIGIR
2012
ACM
13 years 2 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 ...
ER
2009
Springer
15 years 6 months ago
2009
Springer
Abstract. The development of index structures that allow e cient retrieval of spatial objects has been a topic of interest in the last decades. Most of these structures have been d...