356 search results - page 46 / 72 » Robust and efficient algorithms for rank join evaluation |
WWW
2008
ACM
15 years 10 months ago
2008
ACM
In this paper, we formalize the problem of Basic Graph Pattern (BGP) optimization for SPARQL queries and main memory graph implementations of RDF data. We define and analyze the c...
IDEAS
2000
IEEE
15 years 2 months ago
2000
IEEE
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
98
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ICIP
2007
IEEE
15 years 11 months ago
2007
IEEE
This paper describes a method for articulated upper body tracking in monocular scenes. The compatibility between model and the image is estimated using one particle filter for eac...
ICIP
2010
IEEE
14 years 7 months ago
2010
IEEE
This paper presents a real-time face recognition system. The system uses a stereo camera to locate, track, and recognize a person's face. Our algorithm improves state-of-the-...
167
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SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
Managing uncertain data using probabilistic frameworks has attracted much interest lately in the database literature, and a central computational challenge is probabilistic infere...