Assessment of ductile iron casting process with the use of the DRSA method

Abstract

The paper introduces a concept of assessment of a ductile iron casting process with use of the rule-based approach, known as DRSA (dominance-based rough set approach). The research was conducted in a large Polish foundry. The collected data concern the chemical composition and mechanical properties of the used ductile cast iron. In the paper, a methodology of creating a rule-based moulding model for the tensile strength was proposed. The quality, sensitivity and accuracy of the model extracted from the data were examined. The studies proved its usefulness in the industrial practice and for aiding of the decision making process.

Fuzzy and Interval AHP Approaches in Sustainable Management for the Architectural Heritage in Smart Cities

“…This approach gives methods from the PCCA group-Pairwise Criterion Comparison Approach which it belongs IDRA-Intercriteria Decision Rule Approach. The most used method from the IDRA group is COMET-Characteristic Object METhod [124] uses fuzzy sets theory, and the DRSA-Dominance-based Rough Set Approach method [125,126] uses the rough set theory. The COMET is useful in problemsolving because it allows the decision-maker to organize the structure of the problem, and analyze, compare, and rank alternatives when the complexity of the algorithm is entirely independent of the number of alternatives.…”

The Tool Supporting Decision Making Process in Area of Job-Shop Scheduling

“…Job-shop scheduling problem and adopted building schedules criteria have been described in [29][30][31]. Due to the large number of criteria to be considered in scheduling problem, it is recommended to used methods supporting decision-making, which effectiveness is proven in numerous publications [32][33][34][35][36][37][38][39][40]. Useful tool helping decision making in the area of scheduling is simulation.…”

Selection of Optimal Software for Immersive Virtual Reality Application of City Bus Configurator

“…Such a support can be given by use of advanced, analytical methods aiding the multi-criteria decision-making problems. There are many mathematically advanced methods for solving such problems, among others: TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution), DRSA [14,15]entropy, expectation maximalization method [16], AHP (Analytical Hierarchy Process) and methods based on fuzzy logic. The authors have analyzed these methods and on the basis of literature study of numerous cases it was decided to select the AHP, as a method fulfilling all the assumed requirements and possible to use for selection of appropriate software.…”