Assessment of multiattribute utility functions is significantly simplified if it is possible to decompose the function into more manageable pieces. Utility independence is a powerful property that serves well for this purpose, but if it is not appropriate in a given situation, what options does the analyst have? We review some possibilities and propose a new independence assumption based on the...

A framework named Copula Component Analysis for blind source separation is proposed as a generalization of ICA. It differs from ICA which assumes independence of sources that the underlying components may be dependent with certain structure which is represented by Copula. By incorporating dependency structure, much accurate estimation can be made in principle in the case that the assumption of ...

The packet loss process in a single server queueing system with a finite buffer capacity is analyzed. The model used addresses the packet loss probabilities for packets within a block of consecutive sequence of packets. In contrast to other work that used an independence assumption to compute the loss probabilities of packets within a block, an analytical approach is presented that yields effic...

Observers completed perceptual categorization tasks that included separate base-rate/payoff manipulations, corresponding simultaneous base-rate/payoff manipulations, and conflicting simultaneous base-rate/payoff manipulations. Performance (1) was closer to optimal for 2:1 than for 3:1 base-rate/payoff ratios and when base rates as opposed to payoffs were manipulated, and (2) was more in line wi...

In this paper we analyze the packet loss process in a single server queueing system with a nite buuer capacity. The model we use addresses the packet loss probabilities for packets within a block of consecutive sequence of packets. In contrast to other work which used an independence assumption to compute the loss probabilities of packets within a block, we present an analytical approach that y...

Standard prospective logistic regression analysis of case-control data often leads to very imprecise estimates of gene-environment interactions due to small numbers of cases or controls in cells of crossing genotype and exposure. In contrast, under the assumption of gene-environment independence, modern "retrospective" methods, including the "case-only" approach, can estimate the interaction pa...

In our previous research, we applied independent component analysis (ICA) for the restoration of image sequences degraded by atmospheric turbulence. The original high-resolution image and turbulent sources were considered independent sources fromwhich the degraded image is composed of. Although the result was promising, the assumption of source independence may not be true in practice. In this ...