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SIGIR
2003
ACM
15 years 10 months ago
Bayesian extension to the language model for ad hoc information retrieval
We propose a Bayesian extension to the ad-hoc Language Model. Many smoothed estimators used for the multinomial query model in ad-hoc Language Models (including Laplace and Bayes-...
Hugo Zaragoza, Djoerd Hiemstra, Michael E. Tipping
PODS
2010
ACM
170views Database» more  PODS 2010»
15 years 10 months ago
Simplifying XML schema: single-type approximations of regular tree languages
XML Schema Definitions (XSDs) can be adequately abstracted by the single-type regular tree languages. It is wellknown, that these form a strict subclass of the robust class of re...
Wouter Gelade, Tomasz Idziaszek, Wim Martens, Fran...
ECSQARU
1997
Springer
15 years 9 months ago
Cactus: A Branching-Time Logic Programming Language
Abstract. Temporal programming languages are recognized as natural and expressive formalisms for describing dynamic systems. However, most such languages are based on linear ow of ...
Panos Rondogiannis, Manolis Gergatsoulis, Themis P...
ACL
2006
15 years 6 months ago
A Hierarchical Bayesian Language Model Based On Pitman-Yor Processes
We propose a new hierarchical Bayesian n-gram model of natural languages. Our model makes use of a generalization of the commonly used Dirichlet distributions called Pitman-Yor pr...
Yee Whye Teh
QEST
2005
IEEE
15 years 10 months ago
Comparative Analysis of Bisimulation Relations on Alternating and Non-Alternating Probabilistic Models
We consider bisimulation and weak bisimulation relations in the context of the Labeled Markov Chains of Hansson and Jonsson, the Concurrent Labeled Markov Chains of Philippou, Lee...
Roberto Segala, Andrea Turrini