Results 301 to 310 of about 24,246,868 (339)
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Community dental health, 1994
Logistic regression is a statistical method which allows an investigator to 'explain' or 'predict' a binary response variable from a set of independent variables. In particular, it may be used to classify persons for example, as diseased or healthy, high risk or low risk etc. (logistic discrimination).
Helfenstein, Ulrich, Steiner, Marcel
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Logistic regression is a statistical method which allows an investigator to 'explain' or 'predict' a binary response variable from a set of independent variables. In particular, it may be used to classify persons for example, as diseased or healthy, high risk or low risk etc. (logistic discrimination).
Helfenstein, Ulrich, Steiner, Marcel
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Applicability of Receiver Operating Characteristic (ROC) analysis on discrete caries depth ratings
Community Dentistry and Oral Epidemiology, 1993Abstract – Accuracy of diagnostic tests for caries detection is frequently evaluated by sensitivity and specificity values obtained from data acquired on an ordinal rating scale which classifies lesions according to the depth in enamel and dentin. The interpretation of these parameters may, however, be difficult. Receiver Operating Characteristic (ROC)
E H, Verdonschot +2 more
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Weighting fuzzy classification rules using receiver operating characteristics (ROC) analysis
Information Sciences, 2007In fuzzy rule-based classification systems, rule weight has often been used to improve the classification accuracy. In past research, a number of heuristic methods for rule weight specification have been proposed. In this paper, a method of fuzzy rule weight specification using Receiver Operating Characteristic (ROC) analysis is proposed.
Mansoor J. Zolghadri, Eghbal G. Mansoori
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Journal of Psychiatric Research, 1995
To test the power of the 35% CO2 test as a challenge for panic disorder (PD), and to set an ideal threshold of discrimination between patients and controls, we analysed by receiver operating characteristic (ROC) analysis the responses of 91 out-patients with PD and 46 controls who inhaled a 35% CO2/65% O2 gas mixture.
M, Battaglia, G, Perna
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To test the power of the 35% CO2 test as a challenge for panic disorder (PD), and to set an ideal threshold of discrimination between patients and controls, we analysed by receiver operating characteristic (ROC) analysis the responses of 91 out-patients with PD and 46 controls who inhaled a 35% CO2/65% O2 gas mixture.
M, Battaglia, G, Perna
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Annals of Nuclear Medicine, 2001
The quality of images reconstructed by means of the maximum likelihood-expectation maximization (ML-EM) and ordered subset (OS)-EM algorithms, was examined with parameters such as the number of iterations and subsets, then compared with the quality of images reconstructed by the filtered back projection method.Phantoms showing signals inside signals ...
Y, Takahashi +4 more
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The quality of images reconstructed by means of the maximum likelihood-expectation maximization (ML-EM) and ordered subset (OS)-EM algorithms, was examined with parameters such as the number of iterations and subsets, then compared with the quality of images reconstructed by the filtered back projection method.Phantoms showing signals inside signals ...
Y, Takahashi +4 more
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Scandinavian Audiology, 2001
The clinical use of distortion product otoacoustic emissions (DPOAE) stems from the observation that the outer hair cells are the most vulnerable part of the cochlea, and damage to these cells is associated with hearing loss and loss of DPOAE. The purpose of this study is to evaluate the applicability of DPOAE in predicting hearing thresholds under ...
H U, Steinhart +3 more
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The clinical use of distortion product otoacoustic emissions (DPOAE) stems from the observation that the outer hair cells are the most vulnerable part of the cochlea, and damage to these cells is associated with hearing loss and loss of DPOAE. The purpose of this study is to evaluate the applicability of DPOAE in predicting hearing thresholds under ...
H U, Steinhart +3 more
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Medical Care, 1989
Self-administered screening questionnaires are available to assist primary care physicians in detecting undiagnosed depression and anxiety disorders. This study used receiver operating characteristic (ROC) analysis to evaluate three such tests: the General Health Questionnaire (GHQ), the Mental Health Inventory (MHI), and the Somatic Symptom Inventory (
M C, Weinstein +4 more
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Self-administered screening questionnaires are available to assist primary care physicians in detecting undiagnosed depression and anxiety disorders. This study used receiver operating characteristic (ROC) analysis to evaluate three such tests: the General Health Questionnaire (GHQ), the Mental Health Inventory (MHI), and the Somatic Symptom Inventory (
M C, Weinstein +4 more
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Community Dentistry and Oral Epidemiology, 1992
AbstractIt has been evident for many years that dentists, when planning treatment for patients, do not act in a standard manner, and previous research has shown there to be wide variations in treatment planning amongst groups of dentists. Signal detection theory and Receiver Operating Characteristic (ROC) analysis allows measurement of an observer's ...
E J, Kay, R, Knill-Jones
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AbstractIt has been evident for many years that dentists, when planning treatment for patients, do not act in a standard manner, and previous research has shown there to be wide variations in treatment planning amongst groups of dentists. Signal detection theory and Receiver Operating Characteristic (ROC) analysis allows measurement of an observer's ...
E J, Kay, R, Knill-Jones
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Physics in Medicine and Biology, 1991
The relationship between gamma camera variables (total counts in image, collimator type, etc) and diagnostic imaging performance was quantitatively investigated using receiver operating characteristic (ROC) curve analysis. A College of American Pathologists (CAP) liver phantom was used with a 99Tcm flood source to generate anterior and lateral liver ...
B, Bartkiewicz, W, Huda, Y, McLellan
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The relationship between gamma camera variables (total counts in image, collimator type, etc) and diagnostic imaging performance was quantitatively investigated using receiver operating characteristic (ROC) curve analysis. A College of American Pathologists (CAP) liver phantom was used with a 99Tcm flood source to generate anterior and lateral liver ...
B, Bartkiewicz, W, Huda, Y, McLellan
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International Journal of Geriatric Psychiatry, 2001
AbstractObjectiveTo compare the accuracy of five clock scoring methods for detecting dementia in English‐speaking patients.DesignA prospective cohort study.SettingA general geriatric outpatient clinic in southwest Sydney, Australia.ParticipantsA total of 127 consecutive new referrals to the clinic, of mean age 78.2 years.MeasurementsThe clock drawing ...
J E, Storey +3 more
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AbstractObjectiveTo compare the accuracy of five clock scoring methods for detecting dementia in English‐speaking patients.DesignA prospective cohort study.SettingA general geriatric outpatient clinic in southwest Sydney, Australia.ParticipantsA total of 127 consecutive new referrals to the clinic, of mean age 78.2 years.MeasurementsThe clock drawing ...
J E, Storey +3 more
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