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VLDB
1999
ACM
124views Database» more  VLDB 1999»
14 years 1 months ago
Cost Models DO Matter: Providing Cost Information for Diverse Data Sources in a Federated System
An important issue for federated systems of diverse data sources is optimizing cross-source queries, without building knowledge of individual sources into the optimizer. This pape...
Mary Tork Roth, Fatma Ozcan, Laura M. Haas
EOR
2007
78views more  EOR 2007»
13 years 9 months ago
Heuristic modeling of expectation formation in a complex experimental information environment
Academic subjects made judgmental forecasts of a graphically presented time series in a laboratory experiment. Besides the past realizations of the time series itself, the only av...
Otwin Becker, Johannes Leitner, Ulrike Leopold-Wil...
NGC
2000
Springer
101views Communications» more  NGC 2000»
13 years 8 months ago
Information Access in Multimedia Databases Based on Feature Models
With the increasing popularity of the WWW, the main challenge in computer science has become content-based retrieval of multimedia objects. Access to multimedia objects in database...
Arjen P. de Vries, Menzo Windhouwer, Peter M. G. A...
IJCV
2006
262views more  IJCV 2006»
13 years 9 months ago
A Variational Model for Object Segmentation Using Boundary Information and Shape Prior Driven by the Mumford-Shah Functional
In this paper, we propose a new variational model to segment an object belonging to a given shape space using the active contour method, a geometric shape prior and the Mumford-Sha...
Xavier Bresson, Pierre Vandergheynst, Jean-Philipp...
HICSS
2007
IEEE
139views Biometrics» more  HICSS 2007»
14 years 3 months ago
Physicians' Resistance toward Healthcare Information Technologies: A Dual-Factor Model
This paper proposes and validates a theory of physician resistance toward IT usage by drawing on prior research in the resistance to change literature and a recent dual-factor mod...
Anol Bhattacherjee, Neset Hikmet