Improving Accuracy of Incorrect Domain Theories
نویسنده
چکیده
An approach to improve accuracy of incorrect domain theories is presented that learns concept descriptions from positive and negative examples of the concept. The method uses the available domain theory, that might be both overly general and overly speci c, to group training examples before attempting concept induction. gentre is a system that has been implemented to test the performance of the method. gentre is not limited to variable-free, function-free or nonrecursive domains as many other approaches. In the paper we present results from experiments in three di erent domains and compare the performance of gentre with that of ID3 and IOU. The learned concept descriptions are consistent with training examples and have an improved classi cation accuracy relative to the original domain theory.
منابع مشابه
Improving Accuracy of DGPS Correction Prediction in Position Domain using Radial Basis Function Neural Network Trained by PSO Algorithm
Differential Global Positioning System (DGPS) provides differential corrections for a GPS receiver in order to improve the navigation solution accuracy. DGPS position signals are accurate, but very slow updates. Improving DGPS corrections prediction accuracy has received considerable attention in past decades. In this research work, the Neural Network (NN) based on the Gaussian Radial Basis Fun...
متن کاملImproving Simulation Accuracy of a Downsized Turbocharged SI Engine by Developing a Predictive Combustion Model in 1D Simulation Software
In this paper we aim to develop a predictive combustion model for a turbocharged engine in GT-Power software to better simulate engine characteristics and study its behavior under variety of conditions. Experimental data from combustion was initially being used for modelling combustion in software and these data were used for model calibration and result validation. EF7-TC engine was chosen for...
متن کاملKnowledge Base Refinement as Improving an Incorrect, Inconsistent and Incomplete Domain Theory
متن کامل
The Accuracy of Diagnosis and Treatment Made by Pre-hospital Emergency Medical Technicians in Patients Admitted to Hospitals in Qazvin, Iran
Background: Correct diagnosis and appropriate treatment measures of pre-hospital Emergency Medical Technicians (EMTs) are very important in improving the quality of patient care and reducing mortality and costs. Objective: This study aims to investigate the accuracy of diagnosis and treatment made by pre-hospital EMTs in patients admitted to hospitals in Qazvin, Iran. Methods: In this descri...
متن کاملAutonomously Noticing Incorrect Language Use: Does it Improve EFL Learners' Grammatical Accuracy?
Promoting communicative interactions, while simultaneously drawing students’ attention to language form, is considered as a potentially significant area of research in second language acquisition. This study focuses on the effect of transcribing task, as an autonomous noticing activity, on intermediate and advanced EFL learners' grammatical accuracy. The study was conducted in two advanced and ...
متن کامل