Research Topics
| J GoutsiasSummaryAffiliation: Johns Hopkins University Country: USA Publications
| Collaborators
|
Detail Information
Publications
Grayscale level connectivity: theory and applicationsUlisses Braga-Neto
Section of Clinical Cancer Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
IEEE Trans Image Process 13:1567-80. 2004..The use of grayscale level connectivity in image analysis applications, such as object extraction, image segmentation, object-based filtering, and hierarchical image representation, is discussed and illustrated...
Thermodynamically consistent Bayesian analysis of closed biochemical reaction systemsGarrett Jenkinson
Whitaker Biomedical Engineering Institute, The Johns Hopkins University, Baltimore, MD 21218, USA
BMC Bioinformatics 11:547. 2010..Therefore, development of a thermodynamically consistent approach for estimating the rate constants of a biochemical reaction system is highly desirable...
A comparison of approximation techniques for variance-based sensitivity analysis of biochemical reaction systemsHong Xuan Zhang
Whitaker Biomedical Engineering Institute, The Johns Hopkins University, Baltimore, MD 21218, USA
BMC Bioinformatics 11:246. 2010....
A nonlinear discrete dynamical model for transcriptional regulation: construction and propertiesJohn Goutsias
The Whitaker Biomedical Engineering Institute, The Johns Hopkins University, Baltimore, Maryland 21218, USA
Biophys J 86:1922-45. 2004....
Computational and experimental approaches for modeling gene regulatory networksJ Goutsias
Whitaker Biomedical Engineering Institute, The Johns Hopkins University, Baltimore, MD 21218, USA
Curr Pharm Des 13:1415-36. 2007..We conclude, by discussing a promising approach for inferring a transcriptional regulatory system from microarray data obtained by gene perturbations...
Classical versus stochastic kinetics modeling of biochemical reaction systemsJohn Goutsias
Whitaker Biomedical Engineering Institute, The Johns Hopkins University, Baltimore, Maryland, USA
Biophys J 92:2350-65. 2007....
A hidden Markov model for transcriptional regulation in single cellsJohn Goutsias
Whitaker Biomedical Engineering Institute, Clark Hall 308A, The Johns Hopkins University, Baltimore, MD 21218, USA
IEEE/ACM Trans Comput Biol Bioinform 3:57-71. 2006..We employ simulations, based on a biologically relevant transcriptional regulatory system, to show the relative merits and limitations of various approximation techniques and provide general guidelines for their use...
Stochastic transcriptional regulatory systems with time delays: a mean-field approximationJohn Goutsias
Whitaker Biomedical Engineering Institute, The Johns Hopkins University, Baltimore, Maryland 21218, USA
J Comput Biol 13:1049-76. 2006..Moreover, it provides a rather simple and computationally attractive tool for rapid statistical characterization of the dynamic behavior of a nonlinear transcriptional regulatory system with time delays...
Quasiequilibrium approximation of fast reaction kinetics in stochastic biochemical systemsJohn Goutsias
The Whitaker Biomedical Engineering Institute, Johns Hopkins University, Baltimore, Maryland 21218, USA
J Chem Phys 122:184102. 2005..We present three examples which allow analytical calculations that clearly illustrate the mathematical steps underlying the proposed approximation and demonstrate the accuracy and effectiveness of our method...
Thermodynamically consistent model calibration in chemical kineticsGarrett Jenkinson
Whitaker Biomedical Engineering Institute, The Johns Hopkins University, Baltimore, MD 21218, USA
BMC Syst Biol 5:64. 2011..This can result in models that are not physically realizable and may lead to inaccurate, or even erroneous, descriptions of cellular function...
Probabilistic sensitivity analysis of biochemical reaction systemsHong Xuan Zhang
The Whitaker Biomedical Engineering Institute, Johns Hopkins University, Baltimore, Maryland 21218, USA
J Chem Phys 131:094101. 2009..The price to be paid, however, is a substantial increase in computational complexity over derivative-based techniques, which must be effectively addressed in order to make the proposed approach to sensitivity analysis more practical...
Object-based image analysis using multiscale connectivityUlisses Braga-Neto
Virology and Experimental Therapy Laboratory of the Aggeu Magalhães Research Center CPqAM FIOCRUZ, Recife, PE Brazil
IEEE Trans Pattern Anal Mach Intell 27:892-907. 2005..Finally, we propose two object-based multiscale image summaries, reminiscent of the well-known (morphological) pattern spectrum, which can be useful in image analysis and image understanding applications...
