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GLOBECOM
2009
IEEE
16 years 1 months ago
Bayesian Cramer-Rao Bound for OFDM Rapidly Time-Varying Channel Complex Gains Estimation
Abstract—In this paper, we consider the Bayesian CramerRao bound (BCRB) for the dynamical estimation of multi-path Rayleigh channel complex gains in data-aided (DA) and non-dataa...
Hussein Hijazi, Laurent Ros
SIGIR
2009
ACM
16 years 1 months ago
Compression-based document length prior for language models
The inclusion of document length factors has been a major topic in the development of retrieval models. We believe that current models can be further improved by more refined est...
Javier Parapar, David E. Losada, Alvaro Barreiro
SGAI
2007
Springer
16 years 22 days ago
Expressive security policy rules using Layered Conceptual Graphs
A method must be provided to support the analysis of security policy rules interdependencies in a (possibly distributed) environment. We propose a Conceptual Graphs based language...
Madalina Croitoru, Liang Xiao 0002, David Dupplaw,...
OZCHI
2006
ACM
16 years 18 days ago
Using a scenario-planning tool to support an engaging online user experience
This paper describes a pilot project to research the use of a dynamic visual interface as the basis of a scenarioplanning tool. We introduce ‘flow’ as a theoretical framework ...
Jon M. Pearce, John Murphy, David Patman
ICECCS
2005
IEEE
87views Hardware» more  ICECCS 2005»
16 years 7 days ago
Modeling Diverse and Complex Interactions Enabled by Middleware as Connectors in Software Architectures
Middleware enables distributed components to interact with each others in diverse and complex manners. Such interactions should be modeled at architecture level for controlling th...
Yali Zhu