نتایج جستجو برای: discriminative value
تعداد نتایج: 747472 فیلتر نتایج به سال:
OBJECTIVES To validate a sensitive and specific screening test for AD and other dementias, assess its reliability and discriminative validity, and present normative data for its use in various applied settings. BACKGROUND To improve discrimination in screening for AD and dementia, we developed the Memory Impairment Screen (MIS), a 4-minute, four-item, delayed free- and cued-recall test of mem...
LDP (Local Differential Privacy) and its variants have been recently studied to analyze personal data collected from IoT (Internet of Things) devices while strongly protecting user privacy. In particular, a recent study proposes general privacy notion called ID-LDP (Input-Discriminative LDP), which introduces budget for each input value deal with different levels sensitivity. However, it is unc...
Development of a quality-assessment tool for experimental bruxism studies: reliability and validity.
AIMS To combine empirical evidence and expert opinion in a formal consensus method in order to develop a quality-assessment tool for experimental bruxism studies in systematic reviews. METHODS Tool development comprised five steps: (1) preliminary decisions, (2) item generation, (3) face-validity assessment, (4) reliability and discriminitive validity assessment, and (5) instrument refinement...
This paper reports on email filtering based on content features. We test the validity of a novel statistical feature extraction method, which relies on dimensionality reduction to retain the most informative and discriminative features from messages. The approach, named Biased Discriminant Analysis (BDA), aims at finding a feature space transformation that closely clusters positive examples whi...
BACKGROUND Post-traumatic amnesia (PTA) is a key symptom of traumatic brain injury (TBI). Accurate assessment of PTA is imperative in guiding clinical decision making. Our aim was to develop and externally validate a short, examiner independent and practical PTA scale, by selecting the most discriminative items from existing scales and using a three-word memory test. METHODS Mild, moderate an...
OBJECTIVE To examine the diagnostic accuracy of hip internal rotation, hip flexion, and knee flexion measurements for the presence of osteophytosis and joint space narrowing (JSN) in early symptomatic osteoarthritis (OA). METHODS The baseline data for 598 participants of the Cohort Hip & Cohort Knee study were used. Participants underwent a standardized physical and radiographic examination. ...
In this paper we describe a multi-strategy approach to improving semantic extraction from news video. Experiments show the value of careful parameter tuning, exploiting multiple feature sets and multilingual linguistic resources, applying text retrieval approaches for image features, and establishing synergy between multiple concepts through undirected graphical models. We present a discriminat...
2 THE DISCRIMINATIVE MODEL SPACE CONTAINS THE GENERATIVE MODEL SPACE In the following we will show that the generative model with any set of parameters is equivalent to the discriminative model with an appropriately chosen set of parameters. In other words, the discriminative model with these particular parameters predicts the same context-specific substitution probabilities P (a|Ci) as the gen...
Abstract The objective of this study was economic assessment of greenhouse-cucumber production units in Birjand Township and investigation of factors influencing it. Statistical population of this research consisted of all the greenhouse owners in Birjand (50 units). For economic assessment, the profitability index (TR/TC) and discriminative analysis were used. Based on the TR/TC index and clu...
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