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AAAI
2012
11 years 10 months ago
Improving Twitter Retrieval by Exploiting Structural Information
Most Twitter search systems generally treat a tweet as a plain text when modeling relevance. However, a series of conventions allows users to tweet in structural ways using combin...
Zhunchen Luo, Miles Osborne, Sasa Petrovic, Ting W...
WWW
2008
ACM
14 years 8 months ago
Topic modeling with network regularization
In this paper, we formally define the problem of topic modeling with network structure (TMN). We propose a novel solution to this problem, which regularizes a statistical topic mo...
Qiaozhu Mei, Deng Cai, Duo Zhang, ChengXiang Zhai
HICSS
2008
IEEE
106views Biometrics» more  HICSS 2008»
14 years 1 months ago
Rethinking the Digital Divide: Towards a Path of Digital Effectiveness
The digital divide is a complex and dynamic phenomenon. Despite extensive studies on the digital divide and its impact, developing countries, in particular, are still searching fo...
Corlane Barclay, Evan W. Duggan
SAC
2008
ACM
13 years 7 months ago
Whom should I trust?: the impact of key figures on cold start recommendations
Generating adequate recommendations for newcomers is a hard problem for a recommender system (RS) due to lack of detailed user profiles and social preference data. Empirical evide...
Patricia Victor, Chris Cornelis, Ankur Teredesai, ...
DGO
2011
247views Education» more  DGO 2011»
12 years 7 months ago
Open government and e-government: democratic challenges from a public value perspective
We consider open government (OG) within the context of egovernment and its broader implications for the future of public administration. We argue that the current US Administratio...
Teresa M. Harrison, Santiago Guerrero, G. Brian Bu...