A note on distributed estimation and sufficiency

A note on distributed estimation and sufficiency

Follow this and additional works at: http://opensiuc.lib.siu.edu/ece_articles Published in Viswanathan, R. (1993). A note on distributed estimation and sufficiency. IEEE Transactions on Information Theory, 39(5), 1765 1767. doi: 10.1109/18.259674 ©1993 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes...

A note on Fritz John sufficiency

Chapter 2. Sufficiency and Estimation

2.1 Sufficient statistics. Classically, a " statistic " is a measurable function of the observations , say f (X 1 ,. .. , X n). The concept of " statistic " differs from that of " random variable " in that a random variable is defined on a probability space, so that one probability measure is singled out, where for statistics we have in mind a family of possible probability measures, R. A. Fish...

A Note on Distributed Computing

We argue that objects that interact in a distributed system need to be dealt with in ways that are intrinsically different from objects that interact in a single address space. These differences are required because distributed systems require that the programmer be aware of latency, have a different model of memory access, and take into account issues of concurrency and partial failure. We loo...

A Note on Adaptive Estimation

Adaptive Estimation An adaptive estimator is an efficient estimator for a model that is only partially specified. For example, consider estimating a parameter that describes a sample of observations drawn from a distribution F . One natural question is: Is it possible that an estimator of the parameter constructed without knowledge of F could be as efficient (asymptotically) as any well-behaved...