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SIGIR
2002
ACM
15 years 6 days ago
Risk minimization and language modeling in text retrieval dissertation abstract
tion Abstract ChengXiang Zhai (Advisor: John Lafferty) Language Technologies Institute School of Computer Science Carnegie Mellon University With the dramatic increase in online in...
ChengXiang Zhai
103
Voted
MOR
2007
109views more  MOR 2007»
15 years 1 days ago
Solution and Forecast Horizons for Infinite-Horizon Nonhomogeneous Markov Decision Processes
We consider the problem of solving a nonhomogeneous infinite horizon Markov Decision Process (MDP) problem in the general case of potentially multiple optimal first period polic...
Torpong Cheevaprawatdomrong, Irwin E. Schochetman,...
JELIA
2010
Springer
14 years 11 months ago
Stable Belief Sets Revisited
Stable belief sets were introduced by R. Stalnaker in the early ’80s, as a formal representation of the epistemic state for an ideal introspective agent. This notion motivated M...
Costas D. Koutras, Yorgos Zikos
139
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GAMESEC
2010
244views Game Theory» more  GAMESEC 2010»
14 years 10 months ago
The Password Game: Negative Externalities from Weak Password Practices
The combination of username and password is widely used as a human authentication mechanism on the Web. Despite this universal adoption and despite their long tradition, password s...
Sören Preibusch, Joseph Bonneau
115
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CLEF
2009
Springer
14 years 10 months ago
Users' Image Seeking Behavior in a Multilingual Tag Environment
: This paper presents the results of a user study conducted in the framework of the Interactive Image Retrieval task at CLEF 2009. The main goal of our research is to understand th...
Miguel E. Ruiz, Pok Chin