Computations of the Eight Basic Measures in Diagnostic Testing

Channel:
India BP International
Subscribers:
9,520
Published on ● Video Link: https://www.youtube.com/watch?v=MgoAQSlgr6Y


Duration: 0:00
39 views
3

Computations of the Eight Basic Measures in Diagnostic Testing | Chapter 06 | Advances in Mathematics and Computer Science Vol. 2

Diagnostic testing concerning categorical or dichotomized variables is ubiquitous in many fields including, in particular, the field of clinical or epidemiological testing. Typically, results are aggregated in two-by-two contingency-table format, from which a surprisingly huge number of indicators or measures are obtained. In this chapter, we study the eight most prominent such measures, using their medical context. Each of these measures is given as a conditional probability as well as a quotient of certain natural frequencies. Despite its fundamental theoretical importance, the conditional probability interpretation does not seem to be appealing to medical students and practitioners. This paper attempts a partial remedy of this situation by visually representing conditional probability formulas first in terms of two-variable Karnaugh maps and later in terms of simplified acyclic (Mason) Signal Flow Graph (SFGs), resembling those used in digital communications or DNA replication. These graphs can be used, among other things, as parallels to trinomial graphs that function as a generative model for the ternary problems of conditional probabilities, which were earlier envisioned by Pedro Huerta and coworkers. The arithmetic or algebraic reading or solving of a typical conditional-probability problem is facilitated and guided by embedding the problem on the SFG that parallels a trinomial graph. Potential extensions of this work include utilization of more powerful features of SFGs, interrelations with Bayesian Networks, and reformulation via Boolean-based probability methods.

Author(s) Details

Ali Muhammad Ali Rushdi
Department of Electrical and Computer Engineering, King Abdulaziz University, P.O.Box 80204, Jeddah, 21589, Kingdom of Saudi Arabia.

Fayez Ahmad Talmees
Department of Electrical and Computer Engineering, King Abdulaziz University, P.O.Box 80204, Jeddah, 21589, Kingdom of Saudi Arabia.

Read full article: http://bp.bookpi.org/index.php/bpi/catalog/view/69/827/634-1



Other Videos By BP International


2019-09-26Gaucher’s Disease: Prenatal and Post Natal Diagnostic Dilemma and Elucidating Case Series
2019-09-26Effect of Organotherapic Medicine on Glycaemia in Patients and Animals Receiving Antiretroviral
2019-09-26Preoperative Empyema can be a Cause of Cancel Bronchial Sleeve Resection for Lung Cancer?
2019-09-26Novel Structures of Uracil Mustard (Uramustine) Retaining Cytotoxic Activity and Drug-likeness
2019-09-26Risk Factors for Developmental Dysplasia of The Hip
2019-09-26Barriers to Implementation of Facility-based Kangaroo Mother Care for Pre-term and Low Birth Weight
2019-09-26Alterations of Bronchial Cytokines in Bronchial Carcinoid Tumor Perioperatively
2019-09-26Extrapulmonary Tuberculosis- A Diagnostic Conundrum!
2019-09-26Evaluation of Outcome of a Rare Presentation of Appendicitis
2019-09-24Translation of Weighted Voting Concepts to the Boolean Domain: The Case of the Banzhaf Index
2019-09-24Computations of the Eight Basic Measures in Diagnostic Testing
2019-09-24Analytical Approach to Obtain Some New Traveling Wave Solutions of Coupled Systems of Nonlinear
2019-09-24Relations between Various Magnitudes Which Serve as Signs of a Right-angled Triangle
2019-09-24Nontrivial Weak Solutions of a Quasilinear Equation Involving p-Laplace Operator
2019-09-23Histological Studies on Heteracris littoralis (Rambur) Treated with Silica Nano-particles
2019-09-23Bacteriuria in Pregnancy
2019-09-23Optimization of Biodegradation of Phenol in a Refinery Effluent Treatment Facility
2019-09-23The Utilization of Agro-Waste: A Nanobiotechnology Point of View
2019-09-22Phytochemical and Antimicrobial Evaluation of the Essential Oil of Croatian Salvia brachyodon Vandas
2019-09-22Ashwagandha and Its Active Ingredient, Withanolide A, Increase Activation
2019-09-22Phytomedicinal and Ameliorative Effect of Ethanol Leaf Extract of Corchorus olitorius on Carbon