SUMMARY In this paper we report exploratory analyses of high-density oligonucleotide array data from the Affymetrix GeneChip R system with the objective of improving upon currently used measures of gene expression. Our analyses make use of three data sets: a small experimental study consisting

, and for risk management. This article presents a simple model for valuing risky debt that explicitly incorporates a firm's credit rating as an indicator of the likelihood of default. As such, this article presents an arbitrage-free model for the term structure of credit risk spreads and their evolution

densities are estimated for data on the S&P500 Index and the prices of options on this Index. It is observed that the statistical density is symmetric with some kurtosis, while the risk neutral density is negatively skewed with a larger kurtosis. The additional parameters also correct for pricing biases

-spot throughput than high-dimensional networks (e.g., binary n-cubes) with the same bisection width. Index Terms- Communication networks, concurrent comput-ing, interconnection networks, message-passing multiprocessors, parallel processing, VLSI. I.

philosophers. ” The principles described in this model have been implemented and tested in the Conic environment for distributed systems. Index Terms-Change management, distributed systems, dynamic con-figuration, system evolution. I.

it into account. Index Terms—Competition, design principles, economics, network architecture, trust, tussle. I.

global asymptotic stability. Index Terms---Feedback stabilization, hybrid system, linear control system, quantized measurement. I. INTRODUCTION T HIS PAPER deals with quantized feedback stabilization problems for linear time-invariant control systems. A quantizer, as defined here, acts as a

questions in Mammalian evolution, based on whole-mitochondrial genomic analysis: the Eutherian orders and the Marsupionta hypothesis against the Theria hypothesis. Index Terms—Heterogenous data analysis, hierarchical unsupervised clustering, Kolmogorovcomplexity, normalized compression distance, parameter

The Fokker--Planck equation, or forward Kolmogorov equation, describes the evolution of the probability density for a stochastic process associated with an Ito stochastic differential equation. It pertains to a wide variety of time--dependent systems in which randomness plays a role. In this paper

, and for universal decoding of hidden Markov channels. These and other related topics are reviewed in this paper. Index Terms—Baum–Petrie algorithm, entropy ergodic theorems, finite-state channels, hidden Markov models, identifiability, Kalman filter, maximum-likelihood (ML) estimation, order estimation, recursive