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GLOBECOM
2008
IEEE
15 years 4 months ago
Power Allocation for Cognitive Radios Based on Primary User Activity in an OFDM System
Efficient and reliable power allocation algorithm in Cognitive radio (CR) networks is a challenging problem. Traditional water-filling algorithm is inefficient for CR networks due ...
Ziaul Hasan, Ekram Hossain, Charles L. Despins, Vi...
GCB
2004
Springer
113views Biometrics» more  GCB 2004»
15 years 9 months ago
Feature Based Representation and Detection of Transcription Factor Binding Sites
: The prediction of transcription factor binding sites is an important problem, since it reveals information about the transcriptional regulation of genes. A commonly used represen...
Rainer Pudimat, Ernst Günter Schukat-Talamazz...
BMCBI
2004
104views more  BMCBI 2004»
15 years 4 months ago
Discriminative topological features reveal biological network mechanisms
Background: Recent genomic and bioinformatic advances have motivated the development of numerous network models intending to describe graphs of biological, technological, and soci...
Manuel Middendorf, Etay Ziv, Carter Adams, Jen Hom...
AIED
2009
Springer
15 years 11 months ago
Fostering engaged and directed learning by activity foregrounding and backgrounding
We propose a design model for guiding learning in exploratory environments through representational choices. Selecting the appropriate representations at the correct granularity ca...
Katherine Howland, Benedict du Boulay, Judith Good
IBPRIA
2007
Springer
15 years 10 months ago
Estimation of Multiple Objects at Unknown Locations with Active Contours
Abstract. This paper presents an algorithm for the estimation of multiple regions with unknown shapes and positions using multiple active contour models (ACM’s). The algorithm or...
Margarida Silveira, Jorge S. Marques