2880 search results - page 464 / 576 » Approximate Range Searching |
SIGMOD
2001
ACM
14 years 10 months ago
2001
ACM
The bit-sliced index (BSI) was originally defined in [ONQ97]. The current paper introduces the concept of BSI arithmetic. For any two BSI's X and Y on a table T, we show how ...
WWW
2010
ACM
14 years 5 months ago
2010
ACM
Access to realistic, complex graph datasets is critical to research on social networking systems and applications. Simulations on graph data provide critical evaluation of new sys...
FOCS
2009
IEEE
14 years 4 months ago
2009
IEEE
We prove the existence of an algorithm A for computing 2-d or 3-d convex hulls that is optimal for every point set in the following sense: for every set S of n points and for ever...
ISCAS
2006
IEEE
14 years 4 months ago
2006
IEEE
We describe a sensor network based on smart requirements of the network. This will provide a new approach imager sensors able to extract events of interest from a scene. for compos...
SIGIR
2004
ACM
14 years 3 months ago
2004
ACM
Empirical studies of information retrieval methods show that good retrieval performance is closely related to the use of various retrieval heuristics, such as TF-IDF weighting. On...