Showing 1 - 10 of 2,378
Abstract An exciting new direction in HIV research is centered on using molecular phylogenetics to understand the social and behavioral drivers of HIV transmission. SPOT was an intervention designed to offer HIV point of care testing to men who have sex with men at a community-based site in...
Persistent link: https://www.econbiz.de/10014590638
variances are utilized. To these ends, SIMEX and modified estimating equations (MEE) rather than likelihood methods are … depends on the true value of the parameter. Furthermore, the performances of SIMEX and MEE are associated with the true value … those from SIMEX. It was also found that the MEE estimators contain singularities which attribute to its low precision and …
Persistent link: https://www.econbiz.de/10009468234
kernel regression context, we derive the limit distribution of the SIMEX estimate. With the regression spline technique, two … different methods of estimations are used. The first method is the SIMEX algorithm which attempts to estimate the bias, and …
Persistent link: https://www.econbiz.de/10010310815
under these specific contexts. Then we borrow the idea of simulation-extrapolation (SIMEX), or remeasurement method …
Persistent link: https://www.econbiz.de/10009431306
kernel regression context, we derive the limit distribution of the SIMEX estimate. With the regression spline technique, two … different methods of estimations are used. The first method is the SIMEX algorithm which attempts to estimate the bias, and …
Persistent link: https://www.econbiz.de/10010956490
In many problems one wants to model the relationship between a response Y and a covariate X. Sometimes it is difficult, expensive, or even impossible to observe X directly, but one can instead observe a substitute variable W which is easier to obtain. By far the most common model for the...
Persistent link: https://www.econbiz.de/10010310765
In many problems one wants to model the relationship between a response Y and a covariate X. Sometimes it is difficult, expensive, or even impossible to observe X directly, but one can instead observe a substitute variable W which is easier to obtain. By far the most common model for the...
Persistent link: https://www.econbiz.de/10010956544
vectors. The proposed SVM training is implemented and tested on two problems: (i) gender classification of facial images using … standard SVM training, the proposed approach leads to much faster SVM training, produces a more compact classifier while …
Persistent link: https://www.econbiz.de/10009457387
Vector Machines (SVM) for financial data. The financial series are fitted into a family of Asymmetric Power ARCH (APARCH … inefficient when the data distribution shows departure from normality, so the current paper utilizes the nonparametric-based SVM … method and shows that it is more efficient than the QML under the skewed Student's t-distributed error. As the SVM is a …
Persistent link: https://www.econbiz.de/10013208610
In this research, two estimation algorithms for extracting cross-lingual news pairs based on machine learning from financial news articles have been proposed. Every second, innumerable text data, including all kinds news, reports, messages, reviews, comments, and tweets are generated on the...
Persistent link: https://www.econbiz.de/10012610996