A Multi-Agent System to Assist with Property Valuation Using Heterogeneous Ensembles of Fuzzy Models

The multi-agent system for real estate appraisals MAREA was extended to include aggregating agents, which are equipped with heuristic optimization algorithms and can create heterogeneous ensemble models, was presented in the paper. The major part of the study was devoted to investigate the predictive accuracy of heterogeneous ensembles comprising fuzzy models and to compare them with homogenous bagging ensembles. Six optimization heuristics including genetic, tabu search, simulated annealing, minimum average and random algorithms were implemented and applied to obtain the best ensembles for different number of fuzzy models.

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