The analytic continuation method of homogenization theory provides Stieltjes integral representations for the effective parameters of composite media. These representations involve the spectral measures of self-adjoint random operators which depend only on the composite geometry. On finite bond lattices, these random operators are represented by random matrices and the spectral measures are giv...

The performance of prediction models can be assessed using a variety of methods and metrics. Traditional measures for binary and survival outcomes include the Brier score to indicate overall model performance, the concordance (or c) statistic for discriminative ability (or area under the receiver operating characteristic [ROC] curve), and goodness-of-fit statistics for calibration.Several new m...

Controlled discrete-time stochastic processes are studied using the convex-analytic approach. Some new properties of strategic measures spaces are established, particular Markov models are considered. The meaningful example is presented.

In this rejoinder, I outline 6 recommendations that may guide the continued development and validation of measures of depression. These are (a) articulate a formal theory of signs and symptoms; (b) differentiate complex theoretical goals from pragmatic evaluation needs; (c) invest heavily in new methods and analytic models; (d) calibrate all measures against a common set of items or indicators;...

the difficulty of assessing the writing skill is well known. different testing facets seem to affect the result of assessing the writing skill. in addition to the writer’s ability, the topic of the writing task, and methods of rating may contribute to the writer’s score. in this study, 50 efl learners wrote four different types of writing tasks (convincing, describing, instructing, and explaini...

Two qualitatively different information-processing algorithms for solution of Raven’s Progressive Matrices items have been identified. Whereas the Gestalt algorithm involves spatial operations upon the test stimuli, the Analytic algorithm employs logical operations upon features abstracted from the displays. In this study, training groups were established varying both in the Strength (Weak or S...

Consider a study with binary exposure, outcome, and confounder, where the confounder is nondifferentially misclassified. Epidemiologists have long accepted the unproven but oft-cited result that, if the confounder is binary, then odds ratios, risk ratios, and risk differences that control for the mismeasured confounder will lie between the crude and the true measures. In this paper, we provide ...

Previous meta-analytic examinations of group cohesion and performance have focused primarily on contextual factors. This study examined issues relevant to applied researchers by providing a more detailed analysis of the criterion domain. In addition, the authors reinvestigated the role of components of cohesion using more modern meta-analytic methods and in light of different types of performan...

To utilize the flexible problem solving capability of human designers, we aim at extending our previous approach for cooperative problem solving among computational agents toward a human-machine cooperative design system within the framework of Multi-Agent Systems (MAS). We extend our method to allow the interactive modification of evaluation measures in cooperative design through the communica...