295 search results - page 42 / 59 » Compressed full-text indexes |
SBBD
2004
13 years 9 months ago
2004
We consider matrix index and navigation index approaches to in-memory navigation of persistent object stores. We demonstrate that both approaches can be re-formulated independentl...
WISE
2009
Springer
14 years 5 months ago
2009
Springer
Abstract. This paper proposes to exploit content and usage information to rearrange an inverted index for a full-text IR system. The idea is to merge the entries of two frequently ...
WWW
2010
ACM
14 years 2 months ago
2010
ACM
The Semantic Web community, until now, has used traditional database systems for the storage and querying of RDF data. The SPARQL query language also closely follows SQL syntax. A...
DCC
2008
IEEE
14 years 7 months ago
2008
IEEE
This paper introduces a very low complexity visual masking algorithm for the JPEG2000 image compression standard and evaluates its impact on the visual image quality by means of t...
IEEEMSP
2002
IEEE
14 years 27 days ago
2002
IEEE
Abstract— This paper discusses encryption operations that selectively encrypt content-carrying segments of multimedia data stream. We propose and analyze three techniques that wo...