Fuzzy Logic versus Classical Logic: An Example in Multiplicative Ideal Theory

Heubo-Kwegna, Olivier A.

doi:10.1155/2016/3839265

Cited by 3 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, Zhang et al [49] state that the overall precision in set, theory-based models, such as HMP-Coffee, can be affected when there are many border values. According to Olivier et al [50], techniques such as Fuzzy theory that can operate with intermediate values are proper to overcome this shortcoming, seeking to achieve a more flexible and precise model.…”

Section: Discussionmentioning

confidence: 99%

HMP-Coffee: A Hierarchical Multicriteria Model to Estimate the Profitability for Small Coffee Farming in Colombia

et al. 2021

View full text Add to dashboard Cite

Existing models to estimate profitability in small-scale coffee production are based on limited information leading to precision problems in the estimations and, therefore, fail to represent the real economic return. This leads smallholders to make decisions based on inaccurate information with negative consequences on their financial status. This paper introduces a novel hierarchical approach called HMP-Coffee (Hierarchical Model Profitability Coffee) to estimate the profitability level in small-scale coffee productions, supporting smallholders, in decision-making, to improve their income and, consequently, their economic sustainability. HMP-Coffee considers a Contextual Knowledge Phase, based on expert knowledge, to create a conceptual model about the profitability in small-scale coffee productions and a Hierarchical-Multicriteria Phase responsible for translating such a conceptual model into an understandable hierarchical qualitative model able to estimate the level of profitability in small coffee productions precisely. HMP-Coffee was developed by considering the La Sultana farm’s operation in Cauca, Colombia and evaluated with independent data from the Costa Rican Coffee Institute. In the evaluation results, HMP-Coffee achieved 81.72% accuracy, 81.33% precision, 92.30% recall, and 83.46% F-Score. From the results obtained, we conclude that HMP-Coffee is a reliable model to estimate the profitability of small-scale coffee production. Its reliability improves the decision-making for obtaining crops with better economic sustainability.

show abstract

Section: Discussionmentioning

confidence: 99%

HMP-Coffee: A Hierarchical Multicriteria Model to Estimate the Profitability for Small Coffee Farming in Colombia

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The conventional PID controller has the inherent flaw of the limitation of operation range as it can only be tuned for a particular range or input-output combinations. The FLC [22], which uses linguistic variables to specify the wide range of inputs as its Membership Functions (MFs) can solve this problem of the PID controller and can operate effectively under the complete specified range of the DC voltage of the converter. The voltage range is split into segments and each segment is provided as a MF for the reference voltage and the actual output variables.…”

Section: ) Filter Designmentioning

confidence: 99%

Implementation of a High Power Quality BLDC Motor Drive Using Bridgeless DC to DC Converter with Fuzzy Logic Controller

K.¹,

Shree²

2022

Eng. Technol. Appl. Sci. Res.

View full text Add to dashboard Cite

Electric motor drives based on electronic power converters having good power quality parameters are getting huge acceptance. Conventional Diode Bridge Rectifier (DBR) and DC to DC converter-based methods have become obsolete, as they provide low power quality indices which hamper the supply by introducing current harmonics and conduction losses. Although there are many developments in motors and control strategies, the risk and complexity of such drives become bottlenecks in implementation. This study implemented a drive scheme with a brushless DC Motor. The new improved bridgeless topology was modified with an advanced fuzzy logic controller to further improve its power quality and performance. Due to low power, a high-speed application of Brush Less (BLDC) motor was selected for the drive scheme. This combination could achieve almost Unity Power Factor (UPF) and significantly improve control compared to conventional topologies. A circuit-wise analysis was conducted to design the converter's components. The modifications were elaborated through mathematical expressions, and the parameters of power quality were analyzed and validated.

show abstract

Analysis of bridge type and bridgeless cuk converter fed motor drives for improved power quality

Gopan¹,

Shree²

2022

International Journal of Electronics

View full text Add to dashboard Cite

Fuzzy Logic versus Classical Logic: An Example in Multiplicative Ideal Theory

Cited by 3 publications

References 13 publications

HMP-Coffee: A Hierarchical Multicriteria Model to Estimate the Profitability for Small Coffee Farming in Colombia

HMP-Coffee: A Hierarchical Multicriteria Model to Estimate the Profitability for Small Coffee Farming in Colombia

Implementation of a High Power Quality BLDC Motor Drive Using Bridgeless DC to DC Converter with Fuzzy Logic Controller

Analysis of bridge type and bridgeless cuk converter fed motor drives for improved power quality

Contact Info

Product

Resources

About