نتایج جستجو برای: weight updating

تعداد نتایج: 369162  

Journal: :American family physician 2013
Narges Farahi Adam Zolotor

Given that nearly one-half of pregnancies are unintended, preconception care should be considered an integral part of primary care for women of reproductive age. Common issues in preconception care include family planning, achieving a healthy body weight, screening and treatment for infectious diseases, updating appropriate immunizations, and reviewing medications for teratogenic effects. Women...

1996
Jyrki Kivinen Manfred K. Warmuth

We consider two algorithm for on-line prediction based on a linear model. The algorithms are the well-known gradient descent (GD) algorithm and a new algorithm, which we call EG. They both maintain a weight vector using simple updates. For the GD algorithm, the update is based on subtracting the gradient of the squared error made on a prediction. The EG algorithm uses the components of the grad...

2011
Venkata Reddy Krishan Kumar Anil Naik

In this paper minimization of BER in MUD based on neural network has been proposed. The change in weights from Widrow-Hoff learning algorithm has been used to update the weight vectors of the equalizer. Neural networks can be used for linear design, adaptive prediction, amplitude detection, character recognition and many other applications. In this paper adaptive prediction has been used in det...

2014
Rui LI Yingying LI

In order to solve the overfitting of sample weights and the low detection rate in training process of the traditional AdaBoost algorithm, an improved AdaBoost algorithm based on Haar-like features and LBP features is proposed. This method improves weight updating rule and weights normalization rule of the traditional AdaBoost algorithm. Then combining this method with the AdaBoost algorithm bas...

2008
Chih-Hao Chao Chun-Yuan Chu An-Yeu Wu

This paper proposes a Location-Constrained Particle Filter (LC-PF) for Radio Signal Strength Indication (RSSI) based indoor localization system. Based on proposed LC-PF, the RSSI fluctuation problem can be restrained. The proposed methods include locationconstrained importance weight updating (LC-WU) and location-constrained propagation model (LC-model). LC-WU eliminates particles in prohibited...

Journal: :Inf. Comput. 1997
Jyrki Kivinen Manfred K. Warmuth

We consider two algorithms for on-line prediction based on a linear model. The algorithms are the well-known gradient descent (GD) algorithm and a new algorithm, which we call EG. They both maintain a weight vector using simple updates. For the GD algorithm, the update is based on subtracting the gradient of the squared error made on a prediction. The EG algorithm uses the components of the gra...

2014
William Haiwei Dong Izaskun Ugalde Nadia Figueroa Abdulmotaleb El-Saddik

This paper proposes a method to assess the overall fatigue of human body movement. First of all, according to previous research regarding localized muscular fatigue, a linear relation is assumed between the mean frequency and the muscular working time when the muscle is experiencing fatigue. This assumption is verified with a rigorous statistical analysis. Based on this proven linearity, locali...

1999
Christopher Brunner Martin Haardt Josef A. Nossek

Adaptive space-frequency rake receivers use maximum ratio combining and multi-user interference suppression to obtain a considerable increase in performance in DS-CDMA systems such as WCDMA. To this end, the signal-plus-interference-and-noise and the interference-plus-noise space-time covariance matrices are estimated. The computational complexity is reduced significantly by transforming the co...

Journal: :Journal of neurophysiology 2005
Christina Schmitz Per Jenmalm H Henrik Ehrsson Hans Forssberg

When humans repetitively lift the same object, the fingertip forces are targeted to the weight of the object. The anticipatory programming of the forces depends on sensorimotor memory representations that provide information on the object weight. In the present study, we investigate the neural substrates of these sensorimotor memory systems by recording the neural activity during predictable or...

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