Qualitative optimization of Fuzzy Causal Rule Bases using Fuzzy Boolean Nets

Carvalho, João Paulo; Tome, J.A.B.

doi:10.1016/j.fss.2007.04.018

Cited by 33 publications

(32 citation statements)

References 21 publications

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“…Maximum granularity was used. These pa-rameters were chosen empirically and are known to provide good approximation and generalization results for similar data sets (Carvalho and Tomé, 2007).…”

Section: Fuzzy Boolean Nets Methodology and Complementary Analysesmentioning

confidence: 99%

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An integrated recycling approach for GFRP pultrusion wastes: recycling and reuse assessment into new composite materials using Fuzzy Boolean Nets

Castro

Carvalho

Ribeiro

et al. 2014

Journal of Cleaner Production

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A b s t r a c tIn this study, efforts were made in order to put forward an integrated recycling approach for the ther-moset based glass fibre reinforced polymer (GPRP) rejects derived from the pultrusion manufacturing industry. Both the recycling process and the development of a new cost-effective end-use application for the recyclates were considered. For this purpose, i) among the several available recycling techniques for thermoset based composite materials, the most suitable one for the envisaged application was selected (mechanical recycling); and ii) an experimental work was carried out in order to assess the added-value of the obtained recyclates as aggregates and reinforcement replacements into concrete-polymer com-posite materials. Potential recycling solution was assessed by mechanical behaviour of resultant GFRP waste modified concrete-polymer composites with regard to unmodified materials. In the mix design process of the new GFRP waste based composite material, the recyclate content and size grade, and the effect of the incorporation of an adhesion promoter were considered as material factors and systemat-ically tested between reasonable ranges. The optimization process of the modified formulations was supported by the Fuzzy Boolean Nets methodology, which allowed finding the best balance between material parameters that maximizes both flexural and compressive strengths of final composite.Comparing to related end-use applications of GFRP wastes in cementitious based concrete materials, the proposed solution overcome some of the problems found, namely the possible incompatibilities arisen from alkalis-silica reaction and the decrease in the mechanical properties due to high water-cement ratio required to achieve the desirable workability.Obtained results were very promising towards a global cost-effective waste management solution for GFRP industrial wastes and end-of-life products that will lead to a more sustainable composite materials industry.

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Section: Fuzzy Boolean Nets Methodology and Complementary Analysesmentioning

confidence: 99%

“…Therefore, the FBN, which have been shown to provide good results in similar cases (e.g., Carvalho and Tomé, 2007;Meira-Castro et al, 2011, were chosen in the present analysis to fine-tune mix design formulation of GFRP waste admixed polymer mortars.…”

Section: Research Significancementioning

confidence: 99%

An integrated recycling approach for GFRP pultrusion wastes: recycling and reuse assessment into new composite materials using Fuzzy Boolean Nets

Castro

Carvalho

Ribeiro

et al. 2014

Journal of Cleaner Production

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“…Even small sized FBN can automatically interpolate values from large areas where training data were missing. For example, an FBN with 128 neurons per area, each with 25 inputs, can properly cover 20% of the input area for each provided crisp input results (Carvalho and Tomé , 2007). This is a theoretical limit, and in practice it is possible to obtain even better coverage.…”

Section: Using Fbn and Fuzzy Rule Based Inference To Extract Informatmentioning

confidence: 99%

“…Since FBN are probabilistic, one should infer the FBN several times and average the results to obtain z j . The chosen consequent, C j , will be the one where z j has the highest membership degree; and 6. completion is guaranteed as long as at least 5 evenly distributed and reliable data points were available, but even with 3 evenly spaced rules/data points is possible to obtain good results (Carvalho and Tomé , 2007). Since FBN provides a way to verify the validity of a certain result (based on the ratio of taught/ non-taught neurons that were used to infer the result), it is always possible to know how satisfactory the completion is .…”

Section: Using Fbn and Fuzzy Rule Based Inference To Extract Informatmentioning

confidence: 99%

“…The use of fuzzy sets seemed appropriate since it was more important to obtain a qualitative measure of the variation of the fundamental soil chemical properties than a strict quantitative measure. Since the problem in question should be able to deal with sparse quantitative data and eventually expert knowledge, the option to use Fuzzy Boolean Nets (FBN) (Carvalho and Tomé , 2007;Tomé , 1998aTomé , , 1998b to extract qualitative information seemed a good alternative to solve the present problem.…”

Section: Introductionmentioning

confidence: 99%

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Prescribed burning impact on forest soil properties–A Fuzzy Boolean Nets approach

Castro¹,

Carvalho

Ribeiro

2011

Environmental Research

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a b s t r a c tThe Portuguese northern forests are often and severely affected by wildfires during the Summer season. These occurrences significantly affect and negatively impact all ecosystems, namely soil, fauna and flora. In order to reduce the occurrences of natural wildfires, some measures to control the availability of fuel mass are regularly implemented. Those preventive actions concern mainly prescribed burnings and vegetation pruning.This work reports on the impact of a prescribed burning on several forest soil properties, namely pH, soil moisture, organic matter content and iron content, by monitoring the soil self-recovery capabilities during a one year span. The experiments were carried out in soil cover over a natural site of Andaluzitic schist, in Gramelas, Caminha, Portugal, which was kept intact from prescribed burnings during a period of four years. Soil samples were collected from five plots at three different layers (0-3, 3-6 and 6-18) 1 day before prescribed fire and at regular intervals after the prescribed fire.This paper presents an approach where Fuzzy Boolean Nets (FBN) and Fuzzy reasoning are used to extract qualitative knowledge regarding the effect of prescribed fire burning on soil properties. FBN were chosen due to the scarcity on available quantitative data.The results showed that soil properties were affected by prescribed burning practice and were unable to recover their initial values after one year.

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Constructing Models

Trujillo-Cabezas¹,

Verdegay²

2019

Integrating Soft Computing Into Strategic Prospective Methods

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Qualitative optimization of Fuzzy Causal Rule Bases using Fuzzy Boolean Nets

Cited by 33 publications

References 21 publications

An integrated recycling approach for GFRP pultrusion wastes: recycling and reuse assessment into new composite materials using Fuzzy Boolean Nets

An integrated recycling approach for GFRP pultrusion wastes: recycling and reuse assessment into new composite materials using Fuzzy Boolean Nets

Prescribed burning impact on forest soil properties–A Fuzzy Boolean Nets approach

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