Combination of the Data Envelopment Analysis and the Discriminant Analysis for Evaluating Bankrupt Business in a Fuzzy Environment

Torabi, Navid; Tavakkoli–Moghaddam, Reza; Siadat, Ali

doi:10.1080/16168658.2022.2117514

Cited by 2 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Giap et al, (2020) utilized Mamdani FIS to create a fuzzy sliding mode control (FSMC) to minimise the disturbance effect on AMB system [18]. Other than fuzzy logic-based control some other control strategies [19][20][21][22][23][24][25][26][27] are listed in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Modelling, simulation and performance comparison of different membership functions based fuzzy logic control for an active magnetic bearing system

Gupta

Biswas⃰

Aljafari

et al. 2023

The Journal of Engineering

View full text Add to dashboard Cite

In-house prototype model of an active magnetic bearing is built and using its physical parameter values a linearized transfer function of order two, is mathematically obtained for a specific point of operation. In this work, a closed loop active magnetic bearing system is proposed and controller for this closed loop is designed using fuzzy logic control. Two different fuzzy inference systems: Mamdani and Sugeno fuzzy inference system constructed individually with eleven different types of membership functions separately. The considered membership functions are-linear, generalized bell-shaped, Gaussian distribution based, quadratic, cubic polynomial and sigmoidal curve-based membership functions. Calculating the transient state and steady state parameter values together with the controller output allows to see how these various membership functions perform on the proposed closed loop active magnetic bearing system. Observed data shows that changing the fuzzy inference system for a specific membership function will result in 67.41% reduction in the overshoot value, 29.70% reduction in settling time value, 10.42% change in rise time value and 2.91% variation is peak time value. Practicality of all membership functions are analysed based on calculated data and their performances with the proposed model.

show abstract

Section: Introductionmentioning

confidence: 99%

Modelling, simulation and performance comparison of different membership functions based fuzzy logic control for an active magnetic bearing system

Gupta

Biswas⃰

Aljafari

et al. 2023

The Journal of Engineering

View full text Add to dashboard Cite

show abstract

Measuring Operational Efficiency of Restructured Companies: A DEA-MI Approach

Sethi,

Singh,

Gupta

2024

JBT

View full text Add to dashboard Cite

The current study attempts to assess the operational efficiency of the firms restructured to resolve their situation of financial distress. Efficiency evaluation of the firms helps to understand the firm’s performance after it goes through the restructuring process as opposed to liquidation. Thus, it is a measure to validate the decision of the Tribunal to allow the firm to continue as a going concern against liquidation. Malmquist Index, a data envelopment analysis technique, has been utilised to measure the efficiency of firms for three years after restructuring. A study of 40 manufacturing firms reveals that the firms’ efficiency has declined over three years (2017 to 2020) primarily due to the inability of the firms to achieve optimal scale of production. While there has been an improvement in technical efficiency and technological advancement, the overall technical efficiency has been reduced. The study thus provides valuable insights to management and practitioners regarding the areas that require attention post-restructuring and separates performance changes due to other factors like technological advancement or scale efficiencies.

show abstract

Combination of the Data Envelopment Analysis and the Discriminant Analysis for Evaluating Bankrupt Business in a Fuzzy Environment

Cited by 2 publications

References 25 publications

Modelling, simulation and performance comparison of different membership functions based fuzzy logic control for an active magnetic bearing system

Modelling, simulation and performance comparison of different membership functions based fuzzy logic control for an active magnetic bearing system

Measuring Operational Efficiency of Restructured Companies: A DEA-MI Approach

Contact Info

Product

Resources

About