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SOCIALCOM
2010
13 years 8 months ago
Churn in Social Networks: A Discussion Boards Case Study
Churn has been identified as an important issue in a wide range of industries. In social networks, churn represents a significant risk for the health and functioning of communities...
Marcel Karnstedt, Tara Hennessy, Jeffrey Chan, Con...
SSDBM
2006
IEEE
153views Database» more  SSDBM 2006»
14 years 4 months ago
HDF5-FastQuery: Accelerating Complex Queries on HDF Datasets using Fast Bitmap Indices
Large scale scientific data is often stored in scientific data formats such as FITS, netCDF and HDF. These storage formats are of particular interest to the scientific user com...
Luke J. Gosink, John Shalf, Kurt Stockinger, Keshe...
ATAL
2009
Springer
14 years 5 months ago
False name manipulations in weighted voting games: splitting, merging and annexation
An important aspect of mechanism design in social choice protocols and multiagent systems is to discourage insincere and manipulative behaviour. We examine the computational compl...
Haris Aziz, Mike Paterson
UM
2005
Springer
14 years 4 months ago
Towards User Modeling Meta-ontology
The paper proposes meta-ontology of the user modeling field. Ontology is meant to structure the state-of-the-art in the field and serve as a central reference point and as a tool t...
Michael Yudelson, Tatiana Gavrilova, Peter Brusilo...
DIM
2007
ACM
14 years 2 months ago
Using reputation to augment explicit authorization
Online social networks are formed when web applications allow users to contribute to an online community. The explosive growth of these social networks taxes the management capaci...
Phillip J. Windley, Devlin Daley, Bryant Cutler, K...