19 search results - page 2 / 4 » A structuration approach to online communities of practice: ... |
IEEEMSP
2002
IEEE
13 years 9 months ago
2002
IEEE
—Matrix factorization methods are now widely used to recover 3D structure from 2D projections [1]. In practice, the observation matrix to be factored out has missing data, due to...
RBAC
2000
13 years 6 months ago
2000
: Enabling Technologies for Role Based Online Decision Engines Thomas Hildmann, Thomas Gebhardt 22-Feb-2000 The goal of our work at the Technical University of Berlin is to develop...
SIAMCOMP
1998
13 years 4 months ago
1998
This paper describes new methods for maintaining a point-location data structure for a dynamically changing monotone subdivision S. The main approach is based on the maintenance of...
LWA
2008
13 years 6 months ago
2008
In informal collections of collaboratively created knowledge like wikis, there is no well-defined way of reporting issues with knowledge items. When something is wrong or needs im...
PODS
2005
ACM
14 years 5 months ago
2005
ACM
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...