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118
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RPTEL
2006
96views more  RPTEL 2006»
15 years 14 days ago
Supporting Self-Directed Learners and Learning Communities with Sociotechnical Environments
Making learning part of life is an essential challenge for inventing the future of our societies. Lifelong learning is a necessity rather than a possibility or a luxury to be cons...
Gerhard Fischer, Masanori Sugimoto
103
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SIGIR
2008
ACM
15 years 14 days ago
Comments-oriented document summarization: understanding documents with readers' feedback
Comments left by readers on Web documents contain valuable information that can be utilized in different information retrieval tasks including document search, visualization, and ...
Meishan Hu, Aixin Sun, Ee-Peng Lim
SIGIR
2008
ACM
15 years 14 days ago
A simple and efficient sampling method for estimating AP and NDCG
We consider the problem of large scale retrieval evaluation. Recently two methods based on random sampling were proposed as a solution to the extensive effort required to judge te...
Emine Yilmaz, Evangelos Kanoulas, Javed A. Aslam
116
Voted
SIGIR
2008
ACM
15 years 14 days ago
A new probabilistic retrieval model based on the dirichlet compound multinomial distribution
The classical probabilistic models attempt to capture the Ad hoc information retrieval problem within a rigorous probabilistic framework. It has long been recognized that the prim...
Zuobing Xu, Ram Akella
135
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AAI
2005
166views more  AAI 2005»
15 years 14 days ago
Interactive Knowledge Construction in the Collaborative Building of an Encyclopedia
1 One of the major challenges of Applied Artificial Intelligence is to provide environments where high level human activities like learning, constructing theories or performing exp...
Philippe Lemoisson, Stefano A. Cerri
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