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In this paper, the source–filter model of speech production is adapted to represent the speech signal as the superposition and convolution of a dynamic source and resonant modes. The aim is to increase the resolution of the time-instantaneous-frequency representation of each of the individual contributions of different sections of the human phonatory system. We present a framework based on dynamic...
We investigate an approach of accommodating new logic relations, represented in Markov Logic Networks (MLN), from a source domain to a target domain automatically. One characteristic of this problem setting is that logic relations, which are expressed as logic formulae, previously prepared for the source domain dealing with a text mining application are not sufficient for the target domain. Therefore,...
Water quality is an important global issue, requiring effective management, which needs good predictive tools. While good methods for lake water quality prediction have previously been developed, accurate prediction of river water quality has hitherto been difficult. This project combines process-model and data mining approaches through evolutionary methods, resulting in tools for more effective water...
Similarity search for time series has attracted much research attention recently. Flight Data is a set of data arranged by chronological order. Through depth study on the characteristics of Flight Data, in this paper a subsequence matching algorithm based on the Discrete Fourier Transform (DFT) for Flight Data is proposed. In order to reduce the number of dimensions for Flight Data, this algorithm...
This paper considers the problem of output regulation for nonlinear, possibly non-minimum phase, systems, in the presence of parameter-uncertain exosystems. The proposed result relies upon a framework recently proposed by the authors to deal with the presence of unstable zero dynamics in nonlinear output regulation. An interesting aspect of the theory presented in the paper is given by the fact that...
The study on the bearing capacity and settlement is important to a project. It is useful and concrete to develop a model with some intelligent methods in artificial intelligence area for the prediction of some big structure projects. The validity of the models has been proved by some civil engineering practices. Therefore, the research of bearing capacity and settlement characteristics of rigid pile...
In order to improve the trustworthiness of network and decrease the cheating behavior among the nodes in the network, a model for trust discovery based on weighted closeness (WCTD) is presented. This model considers the factors such as the transition fading, time decay, and weights of the path and so on when performing the trust path searching and choosing. So trustor can find the node which satisfies...
Radio frequency identification (RFID) technology has been gaining growing interest from a wide range of industries because of its lower cost and increased capability. In this paper, we study the performance of RFID localization in an indoor environment. In particular, we investigate the k-Nearest Neighbour (k-NN) algorithm in different indoor radio propagation environments and different deployment...
This paper describes a hybrid controller combining a Model Reference Fuzzy Controller (MRFC) and Simple fuzzy logic control (FLC) for vector controlled permanent magnet synchronous motor (PMSM) is described. First, an MRFC system is designed to allow the plant states to follow the states produced by a reference model. The input to fuzzy controller is model error, which is the error between reference...
A novel identification strategy is presented in this paper for piecewise linear (PWL) dynamical systems. The strategy is based on the use of the minimal control synthesis adaptive technique for PWL systems presented in. After stating the general identification problem, the convergence of the novel algorithm is proved analytically in the case where the plant is PWL and the reference model is linear...
Traditional queueing research has concentrated mainly on design, performance and running of the service facility with customers arriving following a stochastic process. In this paper we develop a behavioral model of a queueing system including repeat (returning) customers using a combination of cellular automata models (CA) and genetic algorithms (GA). An agent based evolutionary approach using simulation...
This paper promotes an adaptive optimal model and algorithm for the distributed inventory system which includes one plant, m candidate distribution centers and time-varying customers. The inventory control policy (Q,s) is used in the distributed inventory system. First of all, we adopt theory of the weighted graph to build a mathematical model, which can convert general optimal mathematical model...
Enterprises invest in information system with the expectation that it will contribute to performance, and members of the organization must use information system for it to make a contribution. However, first-line and middle Managers' resistance to change and unwilling to use information systems have become the bottleneck in IT application. In this paper, the key effect factors of the first-line and...
Considering the intermittency of turbulence, the white noise as the stochastic driving term in time-varying stochastic turbulence model, which was supposed by Curtis R. Vogel, is replaced by a Levy random process. Phase screens can be obtained by solving the stochastic partial differential equation (PDE), and the corresponding point spread function (PSF) is also offered. These results describe that...
As a result of the ongoing evolution of IT from an enabler to an industrial sector in its own right-supporting businesses in different sectors of economy on an individual basis-alignment of business and IT is regarded as a necessary requirement for efficient operation. This paper introduces the EU project plugIT that aims to develop an ??IT-socket?? that will realize the vision of businesses ??plugging-in??...
Referring to the possible problem of gyro random drift effect on the Line of Sight (LOS) stabilization accuracy, a method for the LOS stabilization based on visual attitude estimation is proposed. A monocular vision system is established by four coplanar reference points on the ground and a double-focus CCD camera in the carrier. The quaternion is used to represent the transform relation between geodetic...
Placed in the context of emergency communication situations, where all network infrastructures are totally down, the audio communication is required in the first hours. This paper presents a new WiMAX PHY layer model used to determine thresholds for modulation profile switching in order to enhance the communication robustness or throughput. The model used in this paper is our implemented WiMAX model...
This paper expands on the demand-wise shared protection model in order to capacitate a network that achieves pre-defined minimum availability requirements. By enabling DSP to take into consideration minimum availability, a network can be capacitated to meet user's requirements of the network. This provides a way to customize the level of protection throughout the network that matches the needs of...
An approach is developed for the adaptive model-reference control of the continuous-time systems consisting of known and unknown subsystems. It is assumed that the plant is composed of the cascade, parallel or feedback interconnection of known and unknown subsystems. Many physical control systems can be modeled by such interconnections. In our approach, by using the prior knowledge about the plant,...
The maim idea proposed in this paper is integrating sliding mode control (SMC) theory and cerebellar model articulation controller (CMAC) neural network into fuzzy controller design and the fuzzy control rules can be determined systematically by the sliding condition of the SMC. The advantages of using fuzzy model into CMAC are to improve function approximation accuracy in terms of the weighting coefficients...
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