Edges in a medium are the primary source of coherent reflections because they exhibit a large or even diverging amplitude behavior for their derivatives. Generally the medium properties are not only assumed to jump across interfaces, limiting the edge's singular behavior to that of a jump discontinuity, but the interfaces are also assumed to be well separated. Multiscale analysis on well data s...

| The eecient execution of queries in object-oriented databases requires the design of spe-ciic indexing techniques, to eeciently deal with predicates against nested attributes or against class inheritance hierarchies. Indexing techniques so far proposed can be classiied into three groups: inheritance indexing techniques, whose goal is to support queries along inheritance hierarchies; aggregati...

The current mission of the Department of Energy Savannah River Operations (DOE-SR) with respect to aluminum-based spent nuclear fuel (Al-SNF) is “to identify and implement appropriate actions for the safe and efficient management of spent nuclear fuel ...including placing these materials in forms suitable for ultimate disposition.” as stated in the Savannah River Site Spent Nuclear Fuel Managem...

Demographic attributes are important resources for market analysis, which are widely used to characterize different types of users. However, such signals are only available for a small fraction of users due to the difficulty in manual collection process by retailers. Most previous work on this problem explores different types of features and usually predicts different attributes independently. ...

The design of usable yet secure systems raises crucial questions when it comes to balancing properly security and usability. Finding the right tradeoff between these two quality attributes is not an easy endeavor. In this paper, we introduce an original design model based on a novel usability inspection method. This new method, named Security Usability Symmetry (SUS), exploits automata machines...

Companies have been adopting Enterprise Resource Planning (ERP) systems for decades in order to integrate business functions to increase their competitiveness. The original goal of ERP was to provide an all-in-one integrated suite for the enterprise. However, in a modern business environment, ERPs are integrated externally with customers, suppliers and business partners and internally with cont...

We argue that it is useful to study classes of Multi-Agent System (MAS) architectures, corresponding to architectural styles in addition to particular architectures. In this work we focus on a particular abstraction level where MAS architectural styles are characterized according to properties, such as, the type of control used (from fully centralized to fully distributed), and the type of coor...

The selection decisions are complex, as intelligent manufacturing system selection is more challenging today. There is a need for simple, systematic, and logical methods or mathematical tools to guide decision makers in considering a number of selection attributes and their interrelations and in making right decisions. Although a large number of mathematical approaches are now available to eval...

Auctions are a fundamental mechanism to automating negotiations in electronic commerce. We investigate multi-attribute auctions, an economic mechanism, which automates negotiation on multiple attributes of a deal. In this approach, we combine decision analysis techniques and single-sided auction mechanisms in order to procure goods and services. The paper describes an experimental analysis of m...

The use of redundant computational nodes is a widely used design tactic to improve the reliability of complex embedded systems. However, this redundancy allocation has also an effect on other quality attributes, including energy consumption, as each of the redundant computational nodes requires additional energy. As a result, the two quality objectives are conflicting. The approach presented in...