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During the construction process, the project schedule would be affected by the various indeterminate factors inevitably, which may cause increased risk of engineering postpone or difficulty in cost control. Maximum entropy principle was introduced into project risk management by studying information entropy and random network theory, which was applied in project schedule and cost control. And it was...
Design plays an important role in the whole project life cycle, but currently, the deficiencies of the design management make the project investment increase in the early stage of construction, and the design progress can not keep up with the project progress. During the construction phase, design changes are excessive and design cannot coordinate with construction, which lead the project cost to...
This paper presents a theoretical and practical novel approach for computing the probability density function underlying a set of observations. The estimator we propose is an extension of the conventional Parzen Rosenblatt method that leads to a very specific interval-valued estimation of the density. Within this approach, we make use of the convenient representation of a set of usual (summative)...
It is very important for generating an orthonormal multiwavelet system to construct a conjugate quadrature filter (CQF). In this paper, a general method of deriving a length-J + 1 conjugate quadrature filter with multiplicity r and scale a from a length-J conjugate quadrature filter is obtained. As a special case, we study generally the construction of a length-J + 1 conjugate quadrature filter which...
Networked systems are common and crucial. One of the canonical problems in such systems is distributed resource allocation. From this rather broad class of problems, we consider a convex non-smooth resource allocation problem with a global resource constraint. Specifically, the objective function is separable and consists of a sum of convex functions, each associated with a node in a given network...
This paper examines a class of univariate wavelet functions with a matrix factorization. Firstly, the property of an important function is surveyed. Secondly, the result is applied to demonstrate the properties of the filters as well as the scaling and wavelet functions. It is presented that two scaling functions are reflections of each other for some pair of parameters. Examples are developed to...
In this paper, the notion of an three-band Generalized Multiresolution Structure(GMS) of L2(R) is introduced. The properties of affine pseudoframes for subspaces with three-scale is characterized. The construction of a GMS of Paley-Wiener subspaces of L2(R) is investigated. The pyramid decomposition scheme is derived based on such a GMS. As a major new constribution the construction of affine frames...
For a finite group G, f is a function on G, whose value at an element q of G is the number of elements (a, b, c) ?? G ?? G ?? G satisfying abcb-1a-1c-1. By computing the inner products of / with the irreducible characters of G, we prove that f is a character of G, by the regular representation of the center of the complex group algebra, a module construction of f is obtained.
In this paper we describe an experience resulting from the collaboration among data mining researchers, domain experts of the Italian revenue agency, and IT professionals, aimed at detecting fraudulent VAT credit claims. The outcome is an auditing methodology based on a rule-based system, which is capable of trading among conflicting issues, such as maximizing audit benefits, minimizing false positive...
This paper presents a novel approach for constructing symmetric compactly supported biorthogonal multiwavelets with short sequences. Starting from the symmetric properties of scaling and wavelet functions, parameterized symmetric forms of the polyphase matrices can be derived, which greatly simplify the construction problem of compactly supported biorthogonal multiwavelets. Moreover, according to...
Field soil investigation prior to the foundation design of any structure is a must for the design engineer. Since the cost of such operation is rather high, then it is sometimes impractical. The design and the preliminary cost estimation of the construction are then impossible to be prepared. This paper applies Geographical Information System - GIS all over Bangkok area thus enable engineer to retrieve...
Service-oriented computing advocates the development of new software or services on the basis of existing services. This paradigm shows a great potential of achieving high productivity and low cost, but it faces a challenge in efficiently and correctly using existing services in producing a new application and ensuring its reliability. Building a formal model using a formal specification language...
The Walsh spectrum of m-resilient Boolean function at any point is divisible by 2m+2. This property is proved by two new methods in this work, which differ from the known method presented by Maitra. The first method is to compute the Walsh spectrum of resilient Boolean function, which is straightforward compared to the Maitra's method. The second method is to induce the number of variables and the...
The frame theory has been one of powerful tools for researching into wavelets. In the article, the notion of affine bivariate pseudoframes is introduced. The concept of a bivariate generalized multiresolution analysis is developed. A novel approach for constructing one GMRA of Paley-Wiener subspaces of L2(R2) is presented. The sufficient condition for the existence of a class of pseudoframes with...
We consider networks of input-to-state dynamically stable (ISDS) systems and provide a small gain condition under which the entire network is again ISDS. A Lyapunov formulation of the nonlinear small gain theorem for two interconnected ISDS systems is proved. It provides a constructive method to find an ISDS Lyapunov function for such an interconnection.
A bottleneck assigned binary ant system (baBAS) is presented and applied to multimodal optimization problems. The strategy is inspired by traffic organization in real ants under crowded conditions found by A. Dussutour et. al. The Strategy can prevent loss of diversity of solutions by introducing a so called ??bottleneck?? to each path of solutions. Any ant can't pass through the path if the traffic...
Failure probability calculation is the scientific basis for the quantitative analysis of large dam risk and thus, probing the method of calculating large dams' failure probability is of considerable scientific significance and is urgently required by engineering application. While risk evaluation is required for individual large dams, no country can afford the failure calamity test on actual large...
The construction of the initial structure for preimage attack of MD5 is proposed in this paper. With the help of ??divide-and-rule?? technique, the successful possibility of the construction is higher than 2-32. Our construction is based on the MD5 structure, the message modification technique which is improved from Wang's. Some related techniques such as the extential form of the signed difference...
This paper investigates an event condition for event-driven controllers based on Lyapunov functions. Considering that constant values of a Lyapunov function define contour curves that form closed regions around the equilibrium point, in this paper we present a sampling mechanism that enforces job executions (sampling, control algorithm computation and actuation) each time the system trajectory reaches...
This paper addresses the problem of constructing Lyapunov-Krasovskii functionals for verifying integral input-to-state stability(iISS) and input-to-state stability(ISS) of time-delay nonlinear systems. Based on decomposition of a time-delay system into a dynamic component (a functional differential equation) and static components (functional algebraic equations), this paper develops an iISS small-gain...
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