نتایج جستجو برای: transition probability matrics
تعداد نتایج: 471268 فیلتر نتایج به سال:
In this paper we propose and develop an iterative method to calculate a limiting probability distribution vector of a transition probability tensor P arising from a higher-order Markov chain. In the model, the computation of such limiting probability distribution vector x can be formulated as a Z-eigenvalue problem Pxm−1 = x associated with the eigenvalue 1 of P where all the entries of x are r...
Wayne Fenton was a major driving force behind the establishment of the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) and Treatment Units for Research on Neurocognition and Schizophrenia (TURNS) project mechanisms. These projects were designed to facilitate the development of new drugs for the treatment of cognitive impairments in people with schizophrenia. T...
At the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) New Approaches Conference, a discussion group focused on directions for future research that are critical to enhancing our understanding of the distinctions among key cognitive domains that have relevance for the development of cognition-enhancing interventions. One set of recommendations emphasizes the ne...
Introduction: Prostatic specific antigen (PSA) is an excellent tumor marker, but it is not specific for prostate cancer. We evaluated the accuracy of PSA adjusted for transition zone volume calculated by transrectal ultrasonography in predicting prostate cancer in men compared with PSA density. Material and Methods: PSA adjusted for transition zone volume was obtained from 100 patients who u...
BACKGROUND The number of separable cognitive dimensions in schizophrenia has been debated. Guided by the extant factor analytic literature, the NIMH Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) initiative selected seven cognitive domains relevant to treatment studies in schizophrenia: speed of processing, attention/vigilance, working memory, verbal learning...
We consider a hierarchy of four classes of interval digraphs, or equivalently four classes of 0,1-matrics. We provide forbidden submatrix characterizations separating the successive classes. The largest class is the set of (adjacency matrices of) interval digraphs; the smallest is the set of (adjacency matrices of) unit interval digraphs.
The NIMH-MATRICS Consensus Statement on Negative Symptoms is covered from the perspective of Clinical Psychology. The neurobiological model implicit in the Statement can be criticized on the basis that it is scientifically restrictive and narrow and poorly serves clinical practice and service development. Aspects of the Statement relating to psychological treatments are discussed.
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