Robust designs for series estimation

Robust designs for series estimation

Abstract We discuss optimal design problems for a popular method of series estimation in regression problems. Commonly used design criteria are based on the generalized variance of the estimates of the coefficients in a truncated series expansion and do not take possible bias into account. We present a general perspective of constructing robust and efficient designs for series estimators which ...

Robust Designs for Scalability

One-size-fits-all educational innovations do not work because they ignore contextual factors that determine an intervention’s efficacy in a particular local situation. Identifying variables within the intervention’s setting that represent important conditions for success and summarizing the extent to which the impact of the intervention is attenuated by variation in them can provide prospective...

channel estimation for mimo-ofdm systems

تخمین دقیق مشخصات کانال در سیستم های مخابراتی یک امر مهم محسوب می گردد. این امر به ویژه در کانال های بیسیم با ‏خاصیت فرکانس گزینی و زمان گزینی شدید، چالش بزرگی است. مقالات متعدد پر از روش های مبتکرانه ای برای طراحی و آنالیز ‏الگوریتم های تخمین کانال است که بیشتر آنها از روش های خاصی استفاده می کنند که یا دارای عملکرد خوب با پیچیدگی ‏محاسباتی بالا هستند و یا با عملکرد نه چندان خوب پیچیدگی پایینی...

Efficient and robust scale estimation for trended time series

This paper presents a newmethod for robust online variability extraction in time series. The proposed estimator is simultaneously highly robust and efficient.We derive its breakdown point, influence function, and asymptotic variance and study the finite sample properties in a simulation study. © 2009 Elsevier B.V. All rights reserved.

Estimation of Process Variances in Robust Parameter Designs