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    Agents based algorithms for design parameter estimation in contaminant transport inverse problems

    Bharat, T.V.
    Swarm Intelligence Symposium, 2008. SIS 2008. IEEE

    DOI: 10.1109/SIS.2008.4668312
    Publication Year: 2008 , Page(s): 1 - 7

    IEEE Conference Publications

    A considerable amount of work has been dedicated on the development of analytical solutions for flow of chemical contaminants through soils. Most of the analytical solutions for complex transport problems are closed-form series solutions. The convergence of these solutions depends on the eigenvalues obtained from a corresponding transcendental equation. Thus, the difficulty in obtaining exact solutions from analytical models encourages the use of numerical solutions for the parameter estimation even though, the later models are computationally expensive. In this paper a combination of two swarm intelligence based algorithms are used for accurate estimation of design transport parameters from the closed-form analytical solutions. Estimation of eigenvalues from a transcendental equation is treated as a multimodal discontinuous function optimization problem. The eigenvalues are estimated using an algorithm derived based on glowworm swarm strategy. Parameter estimation of the inverse problem is handled using standard PSO algorithm. Integration of these two algorithms enables an accurate estimation of design parameters using closed-form analytical solutions. The present solver is applied to a real world inverse problem in environmental engineering. The inverse model based on swarm intelligence techniques is validated and the accuracy in parameter estimation is shown. The proposed solver quickly estimates the design parameters with a great precision. View full abstract»

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