This paper proposes a recursive least mean squared error fixed-interval smoothing algorithm in distributed parameter systems. It is assumed that the state-space model of the signal to be estimated is unknown, and the algorithm only requires the second-order moments of the signal and the white noise perturbing its observations. Practical application of the proposed algorithm is illustrated with ...

Motivated by the recent trend of offshoring manufacturing facilities to seek lower production cost, while keeping some costly local facilities to better respond to changes in market demand, this paper studies a dual sourcing policy and characterizes the average sourcing allocation. We consider the total landed cost from origin (combining a cheap but slow source and a fast but expensive source) ...

In this paper, we present a novel approach to the restoration of noise-corrupted image, which is particularly effective at removing highly impulsive noise while preserving image details. This is accomplished through a fuzzy smoothing filter constructed from a set of fuzzy membership functions for which the initial parameters are derived in accordance with input histogram. A principle of conserv...

We are proposing a new filter for image restoration and enhancement tasks that relies on image orientation analysis techniques for steering and directing smoothing or enhancement processes. The filter is developed under the Partial Differential Equations (PDE) framework using asymmetric orientation estimation operators and it has better junction preservation and noise removal properties than ex...

Image noise ltering has been widely perceived as an estimation problem in the spatial domain. In this paper, we deal with it as an estimation problem in an uncorrelated transform domain. This idea leads to a generalization of the adaptive LMMSE estimator for ltering noisy images. In our proposed method, the transform-domain local statistics obtained from the noisy image are exploited. Due to th...

Analyzing account-level data from an account aggregator, we find that households increase consumption when they receive expected tax refunds, as if face liquidity constraints. However, these same smooth making payments in other years, primarily by transferring funds among liquid accounts. Even carrying credit card debt payments, and even highly spend out of refunds. This behavior is inconsisten...