Selecting approaches with appropriate accuracy and suitable speed for the purpose of making decision is one of the managers’ challenges. Also investing decision is one of the main decisions of managers and it can be referred to securities transaction in financial markets which is one of the investments approaches. When some assets and barriers of real world have been considered, optimization of...

Search-based approaches to software design are investigated. Software design is considered from a wide view, including topics that can also be categorized under software maintenance or re-engineering. Search-based approaches have been used in research from high architecture level design to software clustering and finally software refactoring. Enhancing and predicting software quality with searc...

Large-scale unconditional and conditional vertex p-centre problems are solved using two meta-heuristics. One is based on a three-stage approach whereas the other relies on a guided multi-start principle. Both methods incorporate Variable Neighbourhood Search, exact method, and aggregation techniques. The methods are assessed on the TSP dataset which consist of up to 71,009 demand points with p ...

the determination of the ultimate pit limit (upl) is the first step in the open pit mine planning process. in this stage that parts of the mineral deposit that are economic to mine are determined. there are several mathematical, heuristic and meta-heuristic algorithms to determine upl. the optimization criterion in these algorithms is maximization of the total profit whilst satisfying the...

The Meta-DENDRAL program is a vehicle for studying problems of theory formation in science. The general strategy of Meta-DENDRAL is to reason from data to plausible generalizations and then to organize the generalizations into a unif ied theory. Three main subprobleras are discussed: (1) explain the experimental data for each ind i vidual chemical structure, (2) generalize the results from each...

data with high frequency have a particular type of none stationary that is called fractional none stationary. this property causes the emergence of long-term memory in financial time series with high frequency. the existence of long-term memory in cement industry time-series is studied in this paper at first and its presence will be confirmed in a high confidence level by two tests r/s and gph....

Many efficient meta-heuristics were developed to solve the vehicle routing problem (VRP). However, these heuristics often require large computation times and significant effort to implement. In this paper we propose a simple and efficient heuristic that only uses the Clarke and Wright’s savings heuristic, the 2-opt and the 3-opt improvement heuristics. It will be shown that the proposed heurist...