Download Geographical Information Systems and Spatial Optimization by Sami Faiz PDF

By Sami Faiz

This ebook bargains with the elemental ideas of GIS and optimization. It offers an summary of varied integration protocols which are termed GIS-O integration ideas utilized to sensible functions. It additionally develops an integration strategy for the car routing challenge with source and distance specifications and approves it with numerical effects. The e-book may be helpful for researchers, determination makers, and practitioners who try and enforce upgraded platforms that derive merits of either GIS and optimization.

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4 The assignment problem An assignment deals with the problem of associating elements to others belonging to two different sets while taking into account some problem requirements. The assignment problem (AP) is one of the extensively studied optimization problems in the literature of operations research because of its ability in modeling a large variety of real applications. A relevant case study related to the traffic assignment is due to Zhang et al. (2010) that aims to minimize the traffic cost.

The two-dimensional CLP is a generalization of the first case in the sense that it involves the length and width of objects. A solution of the two-dimensional CLP describes how to stow objects in containers. A survey of this topic is presented by Lodi et al. (2002). Optimization: Basic Concepts 37 The three-dimensional CLP adds to the two-dimensional version the consideration of the height whenever items are evaluated. • The cargo assortment consists in packing items having the same form and dimensions.

The two-level packing of items, in containers then in compartments, is called the container loading problem (CLP). The optimization of the CLP yields to the most profitable solution that corresponds to the minimum sum of remaining spaces in the used containers. Such a problem arises in various large-scaled industrial applications and transportation networks. Even with the importance of the cargo loading operation in the actual logistics, packing freights into containers is still manual in many warehouses.

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