The exploitation of the residual redundancy of source codec parameters by using the Turbo principle is known as iterative source-channel decoding (ISCD). The concept of redundant index assignments was proposed as a powerful improvement for ISCD. In this contribution design and optimization guidelines for such redundant index assignments are presented. Commonly, the redundant index assignment is...

We show that the maximin average redundancy in pattern coding is eventually larger than 1.84 ( n logn )1/3 for messages of length n. This improves recent results on pattern redundancy, although it does not fill the gap between known lowerand upper-bounds. The pattern of a string is obtained by replacing each symbol by the index of its first occurrence. The problem of pattern coding is of intere...

In spatial database systems rectangles are commonly used to approximate real spatial data. A technique that approximates extended objects with a collection of rectangles is the z-ordering method. Since each of these rectangles eventually corresponds to an entry in a spatial index, the object may be refer-enced several times. This redundancy eeect is controllable. In this paper, we present an em...

The error robustness of digital communication systems using source and channel coding can be improved by iterative sourcechannel decoding (ISCD). The turbo-like evaluation of natural residual source redundancy and of artificial channel coding redundancy makes step-wise quality gains possible by several iterations. The maximum number of profitable iterations is predictable by an EXIT chart analy...

Association rule mining is known to be computationally intensive, yet real-time decision-making applications are increasingly intolerant to delays. In this paper, we introduce the parameter space model, called PARAS. PARAS enables efficient rule mining by compactly maintaining the final rulesets. The PARAS model is based on the notion of stable region abstractions that form the coarse granulari...

Cloud manufacturing is characterized by large uncertainties and disturbances due to its networked, distributed, loosely coupled features. To target the problem of frequent cloud resource node failure, this paper proposes (1) three substitution strategies based on redundancy (2) a new robustness analysis method for systems combination complex network multi-agent simulation. First, simulation mod...

It is known that among all redundancy-free codes (or index assignments), the natural binary code minimizes the mean-squared error (MSE) of the uniform source and uniform quantizer on a binary symmetric channel. We derive a code which maximizes the MSE and demonstrate that the code is linear and its distortion is asymptotically equivalent, as the blocklength grows, to the expected distortion of ...

The effect of environmental factors on plant vegetation is different. Therefore, it is necessary to evaluate role of these factors in medicinal plants growth, development and essential oil. This study was performed to investigate the effect of factors on qualitative and quantitative variations of the essential oil of Verbascum songaricum in its habitats in central Zagros Mountains, Iran in 2012...

In recent years, assembly line design methodologies have included the possibility of sharing tasks between stations. These approaches increase throughput, improving workload balance among Sharing operations can support management lines with task redundancy. The redundancy two consecutive stations improves robustness to unforeseen events. A control policy that allocates shared adjacent is crucia...

Redundancy allocation problem is one of most important problems in reliability area. This problem involves with the suitable redundancy levels under certain strategies to maximizing system reliability under some constraints. Many changes have been made on this problem to draw the problem near to real situations. Selecting the redundancy strategy, using different system configuration are some of...