One hundred fifty-four patients referred for coronary arteriography were prospectively studied with stress electrocardiography, stress thallium scintigraphy, cine fluoroscopy (for coronary calcifications), and coronary angiography. Pretest probabilities of coronary disease were determined based on age, sex, and type of chest pain. These and pooled literature values for the conditional probabili...

On the basis of examining the existing restricted Bayesian network classifiers, a new Bayes-theorem-based and more strictly restricted Bayesian-network-based classification model DLBAN is proposed, which can be viewed as a double-level Bayesian network augmented naive Bayes classification. The experimental results show that the DLBAN classifier is better than the TAN classifier in the most cases.

In a probability-based reasoning system, Bayes’ theorem and its variations are often used to revise the system’s beliefs. However, if the explicit conditions and the implicit conditions of probability assignments are properly distinguished, it follows that Bayes’ theorem is not a generally applicable revision rule. Upon properly distinguishing belief revision from belief updating, we see that J...

In the rough set theory with every decision rule two conditional probabilities, called certainty and co erage factors, are associated. These two factors are closely related with the lower and the upper approximation of a set, basic notions of rough set theory. It is shown that these two factors satisfy the Bayes’ theorem. The Bayes’ theorem in our case simply shows some relationship in the data...

Assessing the safety of a structure through inspection has always been part of the practice of the structural engineer. Information obtained through these inspections can be both objective and subjective. One can update the reliability of an existing structure based on objective and subjective information through the fuzzified Bayes theorem. This paper cites the algorithm for computing the post...

We propose a novel technique for the estimation of deviceparameters suitable for postfabrication performance compensation and adaptive delay testing, which are effective means to improve the yield and reliability of LSIs. The proposed technique is based on Bayes’ theorem, in which the device-parameters of a chip, such as the threshold voltage of transistors, are estimated by current signatures ...

Data are frequently not precise numbers but more or less non-precise, also called fuzzy. Moreover a-priori information in Bayesian inference is usually not available as a precise probability distribution. In case of fuzzy data and fuzzy a-priori information Bayes' theorem has to be generalized. There are different approaches for a generalization of Bayes' theorem but most of them don't keep the...

Two Bayesian models for text classification from the information science field were extended and applied to student produced essays. Both models were calibrated using 462 essays with two score points. The calibrated systems were applied to 80 new, pre-scored essays with 40 essays in each score group. Manipulated variables included the two models; the use of words, phrases and arguments; two app...

N UMEROUS investigators1-'2 have established the importance of ophthalmody-namometry in the diagnosis by safe and simple means of occlusion of the carotid artery proximal to the origin of the ophthalmic artery. In all their reports the significant observations are summarized by a statement giving the percentage of patients with proved carotid occlusion that was found to have significant lowerin...