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Fuzzy VIKOR approach to identify COVID-19 vulnerability region to control third wave in Assam, India

Abstract

These days, the appraisal of the COVID-19 vulnerability has become a difficult errand for the whole world. The COVID-19 administration dynamic issue frequently includes numerous elective arrangements clashing standards. In this paper, we present a multi-criteria decision-making (MCDM) procedure based on the fuzzy VIKOR method to survey the COVID-19 vulnerability in the state of Assam, India. The trapezoidal fuzzy number is utilized to evaluate the rating of the loads for the set-up models. We have observed environment, social, and Medical factors after observing the spread of COVID-19. To study and to have comments, a committee of five experts has been formed from a different region of Assam to observe and comment to identify Coronavirus’s weakest factors. For a better survey, we have divided the state into four areas namely Rural Area, Urban Area, Market Area in Rural Area, and Market Area in Urban Area. The current research looked at how the fuzzy VIKOR selects provinces for urgent adaptation needs differently than a traditional MCDM technique.

1Introduction

The novel Coronavirus, designated 2019-nCoV, infected a few people in Wuhan, China in December 2019, and since then, the outbreak has spread to over 200 countries a worldwide. This has driven the World Health Organization (WHO) to proclaim it as worldwide general wellbeing crisis. Legislatures of the countries influenced by this pandemic are going around defining arrangements and giving assets to deal with this scourge. Gauging the disease rate for a country can go about as a colossal resource in arranging and detailing approaches for such countries. While no model can precisely figure out the pace of contamination and mortality, endeavours have been made to consider and examine the qualities and weaknesses of numerous examinations and models introduced with respect to the COVID-19. Though the gauge models utilized by the wellbeing office or the Government of India were not unveiled, we can proceed with existing models in isolated distributions. Every one of these models adopted various strategies and procedures to anticipate future rates.

There has been a bounty of accessible numerical procedures to foresee the disease rate for the as of now continuous COVID-19 emergency. In past exploration [1], analysts assessed the presence of a larger part of these procedures and closed with two models which can be utilized for additional reasons for assessing the number of cases influenced by the COVID as these models gave the best forecasts. These two models, exponential bend fitting and least square fitted model can be utilized for the present moment and long haul estimating individually. The tale of the Coronavirus rose in Wuhan wet market, China in December 2019, and the virus had gradually spread across China and to numerous different nations via people traveling to and from China. Since the rise of this infection in December 2019, the number of tainted cases from China brought into different nations is on the ascent, and the epidemiologic picture is changing consistently [2]. In [35], authors studied a predictive analytics model for COVID-19 pandemic using artificial neural networks. Also, in [36], authors studied the impact of COVID-19 pandemic on the Turkish civil aviation industry.

We assessed the vulnerability of COVID-19 in the Assam provinces with the fuzzy VIKOR (FV). The current research looked at how the fuzzy VIKOR selects provinces for urgent adaptation needs differently than a traditional MCDM technique. We used the fuzzy VIKOR because it is a compromise option that takes into account both group utility and opponent regret. Compensation between these two criteria is especially important for province vulnerability assessments, as vulnerability rankings are frequently translated into rankings for prioritizing adaptation needs. Given the considerable effects of COVID-19, the adaption prioritizing across provinces should also evaluate overall pleasure and remorse over choosing the wrong provinces (alternatives).

1.1Purpose of the study

The primary purpose of the study is to identify the COVID-19 vulnerability region to control third or further waves in Assam, India. Also, the research aims to throw light on the awareness of COVID-19 like symptoms, environment effect, social distance, etc. criteria in Assam. Considering all of these points, the authors reviewed some important points with the real case of Assam, India. For better the study and to control the further wave of COVID-19 in Assam, the following research questions have been raised:

  • 1) Possible spread of COVID-19 in Rainy Day, Cold Day, and Sunny Day.

  • 2) Maintaining Social Distance in Assam.

  • 3) Lately, Quarantine lockdown in Assam.

  • 4) Lately, declaration of emergency.

  • 5) Lately, restriction on internal border restriction reduced the ability to move freely.

  • 6) Lack of restrictions on nonessential government service.

  • 7) Lack of restrictions on mass gathering.

  • 8) Not follow the curfew.

  • 9) Not maintaining Health Monitoring.

  • 10) Lack of health testing.

  • 11) Lack of quarantine of patients and those suspected of infection.

  • 12) Government policies that affect the country’s resources (Especially materials Health-Workers).

  • 13) Due to the lack of fewer Medical workers (Medical staff).

1.2Motivation

We assessed the vulnerability of COVID-19 in the Assam provinces with the fuzzy VIKOR. The present study focused on how the fuzzy VIKOR makes different selections of provinces for urgent adaptation needs compared with a conventional MCDM approach. We employed the fuzzy VIKOR because the VIKOR provides a compromise solution, considering both group utility and the regret of an opponent. Such compensation between these two factors is particularly critical for the vulnerability assessment of provinces, as the vulnerability rankings are often translated to the rankings for prioritizing the provinces’ adaptation needs. Additionally, the adaptation prioritization among provinces should consider the overall satisfaction and regret of the selection of wrong provinces (alternatives), given the significant effects of COVID-19. This study contributes by using fuzzy mathematics and VIKOR multi-criteria decision making (MCDM) technique to demonstrate how different criteria’s/information related to COVID-19 providers could be ranked on several established criteria. Fuzzy VIKOR appears as powerful tool in allowing multiple expert opinions in the same model. The major contributions of the study are

  • 1) The COVID-19 Vulnerability Region in Assam is identified to control the third or further wave of COVID-19 with the proposed model.

  • 2) Different criteria (or possible ways) for the spread of COVID-19 are identified and arranged ranking-wise.

  • 3) In the end, the advantages, comparative analysis, and limitations of the proposed study are discussed, to prove the effectiveness and novelty of the study.

2Materials and methods

2.1About VIKOR strategy

VIKOR strategy was created for multi-standards optimization of complex frameworks. It decides the trade-off positioning list, the trade-off arrangement, and the weight dependability span for inclination soundness of the trade-off arrangement acquired with the underlying (given) loads. VIKOR centres on positioning and choosing from a lot of options within the sight of clashing measures. Opricovic et al. [9] considered two MCDM strategies, VIKOR Method (VM) and TOPSIS Method (TM) which are looked at, zeroing in on demonstrating the accumulating capacity and normalization, to uncover and to analyse the procedural premise of these two MCDM techniques. VM strategy presents the positioning list dependent on the specific proportion of “closeness” to the ideal arrangement by utilizing direct standardization. Opricovic [10] studied civil engineering systems by multi-criteria optimization method. Liou et al. [8] used VM to analyses the management level of Taiwan’s domestic carriers and to identify the gaps between what aircraft deliver and what consumers seek, while Sanayei et al. [13] used VM to position providers in a flexible chain framework. Later, many authors used the application of fuzzy VICKOR and fuzzy MCDM [11, 12, 14–30, 37–42] in different fields of science and technology. Garg et al. [31] studied VIKOR methods for complex q-rung orthopair fuzzy sets and their applications. In [32], authors have presented an algorithm for T-spherical fuzzy multi-attribute decision making based on improved interactive aggregation operators.

2.2Data set preparation

We’ll start by discussing some relevant issues in Assam so that readers can get a sense of the state’s demographics. Assam is a North-Eastern Indian state. Assam had a population of 31.2 million people in 2011, according to Indian Census data. According to data from Unique Identification India, Assam’s predicted population is 35.6 million as of May 31, 2020. The state’s entire area is 78,438 square kilometers, with a population density of 397 people per square kilometer. Worldometers.info [3] can efficiently provide daily information on India’s total complete number for COVID-19. This source, on the other hand, shows the relevant information about Assam starting on August 16th, rather than from the beginning. We had to resort to the accompanying in order to obtain Assam-related information from the very beginning. From 31st March 2020, the day on which the first COVID-19 case was detected in Assam, through 19th August 2020, daily information is available on the COVID-19 Pandemic in Assam portal [4].

This portal’s data was not updated after August 19. So, we needed to depend on the data made accessible online by the Assam COVID-19 Dashboard, Govt. of Assam [5] to get the data we required. In any case, information for each current day is only accessible in this article. To obtain prior information, it was necessary to regularly monitor changes, which we did, and we now have the relevant information up to the present day. Day-by-day information is available on Worldometers.info [6] beginning August 16 in any case, as previously mentioned. It is realized that patients with comorbidities should play it safe to abstain from getting contaminated with the SARS CoV-2 as they have the most noticeably terrible anticipation (see for instance [7]). The number of deaths due to SARS CoV-2 in Assam has been determined, but it does not include the deaths of individuals (with comorbidities) who died after recovering from the COVID-19 infection. Undoubtedly this may really have been the followed standards somewhere else likewise the world over. As a result, estimates based on typical epidemiological models will be invalid.

In this article, we will introduce data obtained consistently from the passage Assam COVID-19 Dashboard, Govt. of Assam, from March onwards. This information corresponds to the Worldometers.info data from March onwards. In light of the way that the Assam Government Portal is refreshed each day, we are entranced to give information from March to October.

2.3Sampling and collecting data

The data collecting process was conducted online through WhatsApp, Gmail, Facebook platforms. Because this is a new study in the context of Assam, the questionnaire was surveyed in two phases: The first phase, the research survey on five experts to assess the understandable and logical level of the questionnaire. After collecting opinions, appropriate contextual adjustments were made and then conducted in the second phase. Phase 2, the data for affected by COVID-19 was officially collected from 31st March 2020 to 15th March 2021. The online survey was conducted over two months, from July to August 2021. The questionnaire was constructed by observing different criteria as discussed in the introduction section.

From the data (Table 1) it is seen that on 12th August 2020, the state also reported 4,593 COVID-19 positive cases, the highest single-day spike. From Table 1, it may be observed that there has been a steady increase in the number of cases over the months till the spurt of the Second Wave of the virus whose effect can be seen in the jump in the number of cases in the week between 20th April and 27th April where there is a significant increase of about 14,350 cases in a week.

Table 1

COVID-19 cases from March 2020 to April 2021 in Assam

DatesCOVID-19 casesDatesCOVID-19 cases
31st March 202001 (First Case)01st September 2020111724
01st April 20201305th September 2020123922
30th April 20204210th September 2020135805
05th May 20204416th September 2020148969
07th May 20205319th September 2020155453
14th May 20208621st September 2020159320
25th May 202054802nd October 2020183812
27th May 202078306th October 2020188902
31st May 2020136119th October 2020201404
01st June 2020148527th October 2020204171
05th June 202022431st November 2020206514
10th June 202032858th November 2020208786
18th June 2020490423rd November 2020211679
25th June 202066463rd December 2020213168
30th June 2020840713th December 2020214654
1st July 2020895523rd December 2020215677
5th July 20201100131st December 2020216208
10th July 2020155363rd January 2021216304
15th July 2020197541st February 2021217154
25th July 20203108610th February 2021217267
31st July 20204026916th February 2021217309
01st August 2020417266th March 2021217649
05th August 20205044515th March 2021217797
10th August 20206173729th March 2021218310
15th August 2020755581st April 2021218470
19th August 20208431720th April 2021226326
25th August 20209459227th April 2021240676
31st August 2020109040

3Proposed work

In this section, we are going to use the extended version of the Fuzzy VIKOR (FV) Method. It is focused on finding the best alternatives and compromise solutions to conflict criterion problems are determined. The steps in the FV process are as follows:

Step 1: Create the weight vector and fuzzy decision matrix.

Step 2: Orchestrating the dynamic gathering and describing a lot of pertinent ascribes. Idea plan determination requires recognizable proof of choice models, and afterward assessment scales are set up to rank the ideas.

Step 3: Aggregate the decisions makers’ (experts’) opinions to construct a fuzzy decision matrix and get aggregated fuzzy weights of criteria.

Step 4: Assume that the nth expert’s fuzzy rating and weight are χpqr = (χpqr1, χpqr2, χpqr3, χpqr4), and ωqr = (ωqr1, ωqr2, ωqr3, ωqr4). As a result, the aggregated fuzzy rating χpq of alternatives for each criterion can be determined as

χpq=(χpq1,χpq2,χpq3,χpq4),
where χpq1=min(χpqr1), χpq2=1/r∑χpqr2, χpq3=1/r∑χpqr3, χpq4=max(χpqr4).

The total fuzzy weight ωq of each criterion can be determined as follows:

ωq=(ωq1, ωq2, ωq3, ωq4), where ωq1=min(ωqr1), ωq2=1/rωqr2, ωq3 = 1/rωqr3, ωq4=max (ωqr4).

Step 5: Each criterion’s fuzzy weights are transformed to crisp values, and the fuzzy decision matrix is defuzzified.

Step 6: All criterion’s best Gq* and worst Gq- values were determined as Gq* =max(χpq) and Gq- =min(χpq).

Step 7: Calculated the values of Sp and p by the following relations ([9])

Sp=ωq(Gq*-Gpq)Gq*-Gq-,p=maxωq(Gq*-Gpq)Gq*-Gq-

Now we have values of p=Vq(Sp-S*)S--S*+Vq(p-*)--R* , where S*=min(Sp) , S-=max(Sp) , *=min(p) , -=max(p) and 1-V is represents weight of individual regret, and V is the maximum group utility approach. S , and must all be calculated.

Step 8: To rank the alternatives, sort them S , and values in ascending order.

Step 9: Propose a compromise solution based on the alternative Ap , which is the best-ranked solution according to the measure (minimum).

The proposed framework of the research can be shown in the flowchart given in Fig. 1.

Fig. 1

Flowchart of the proposed study.

Flowchart of the proposed study.

4Result and discussion

In Table 1, we looked into the COVID-19 outbreak in Assam, India. We observed that the spread pattern is exponential, with no signs of a reduction in the near future. As a result, predicting the peak of the pandemic in Assam is still impossible. The COVID-19 condition in this Indian state between March 2020 and April 2021 might be described as quite concerning. Even if the situation in India as a whole change, it’s possible that the spread in Assam will continue to increase rapidly.

Table 2

Linguistic variable table for each criterion

Linguistic VariableFuzzy Number
Very High (ϱ)(.8,.9, 1, 1)
High (χ)(.7,.8,.8,.9)
Medium High (ω)(.5,.6,.7,.8)
Medium (ψ)(.4,.5,.5,.6)
Medium Low (ɛ)(.2,.3,.4,.5)
Low (μ)(.1,.2,.2,.3)
Very Low (τ)(0, 0,.1,.2)

The steps of rating of COVID-19 vulnerability region can be defined as follows:

Step 1: By observing the spread of COVID-19, we have observed three alternatives namely Environment factors, social factors, and Medical factors. So as to locate the most weakness (vulnerability) options, a specialist board of trustees of five experts, E1 , E2 , E3 , E4 and E5 has been shaped. These specialists are from various departments, two are Doctors, two are professors and one is a research scholar. In light of the writing (survey), in regards to the assessment of Coronavirus weakness on the models and sub-measures things were examined with the specialists. By observing the most common hydrologic vulnerability in the COVID-19 approach, the COVID-19 basin of the state is divided into four sub-basin regions as follows:

  • 1 A1 - Rural Area

  • 2 A2 - Urban Area

  • 3 A3 - Market Area in Rural Area

  • 4 A4 - Market Area in Urban Area

Step 2: Orchestrating the dynamic gathering and describing a lot of pertinent ascribes. Idea plan determination requires recognizable proof of choice models, and afterward assessment scales are set up so as to rank the ideas. These rules must be characterized by the corporate techniques.

A committee of five experts E1 , E2 , E3 , E4 and E5 has been formed to select the most assessment of Coronavirus vulnerability. The following criteria have been defined

  • Rainy Day ( 1 )

  • Cold Day <25°C ( 2 )

  • Sunny Day >30°C( 3 )

  • Not maintaining Social Distance ( 4 )

  • Lately Quarantine lockdown ( 5 )

  • Lately declaration of emergency ( 6 )

  • Lately restriction on internal border restriction reducing the ability to move freely ( 7 )

  • Lack of restrictions of nonessential government service ( 8 )

  • Lack of restrictions of mass gathering ( 9 )

  • Not follow the curfew ( 10 )

  • Not maintaining Health Monitoring ( 11 )

  • Lack of health testing ( 12 )

  • Lack of quarantine of patients and those suspected of infection ( 13 )

  • Government policies that affect the country’s resources (especially materials Health Workers) ( 14 )

  • Due to lack of fewer Medical workers (Medical staff) ( 15 ).

Step 3: We define the appropriate etymological factors for model significance weights and fuzzy ratings for choices concerning each measure, and then these semantic factors can be presented as trapezoidal fuzzy numbers. Five experts utilized the phonetic weighting factors to survey the significance of the models. Experts have controlled the significant loads of the measurements, which are shown in Table 3. Table 4 shows the experts’ evaluations of the four idea plans (for four sub basins) using various metrics.

Table 3

Weight of criteria provided by experts

Experts /criteria 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
E1 χχχϱχχχχϱχχωϱωω
E2 χτχϱττττϱτωψτψϱ
E3 ψχψϱψμψψχψμμψψμ
E4 τττϱττψϱϱϱϱϱψϱψ
E5 μμωϱχϱχχχχϱϱχχψ
Table 4

Appraisals of sub-basins provided by experts

Decision makersAlternatives 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
E1 A1 χχχϱχχχχϱχχωϱωω
A2 ψψɛχχμϱχχχχχϱχχ
A3 χχχϱχχϱϱϱωϱωϱωχ
A4 ψψɛϱχμχχχμϱχϱχχ
E2 A1 χτχϱττττϱτωψτψϱ
A2 ωτωϱτμμτϱτωψτψϱ
A3 χτχϱττττϱμωψτψϱ
A4 χτχϱτμμτϱψωψτψϱ
E3 A1 ψχψϱψμψψχψμμψψμ
A2 ψχψϱψτωψϱωψψψψμ
A3 ψχψϱψμψψχωμμψψμ
A4 ψχψϱψτωψϱωψψψψμ
E4 A1 τττϱττψϱϱϱϱϱψϱψ
A2 τττϱτμωϱϱχϱϱχϱψ
A3 τττϱττψϱϱϱϱϱψϱψ
A4 τττϱτμωϱϱχϱϱχϱψ
E5 A1 μμωϱχϱχχχχϱϱχχψ
A2 μμωϱχχωχϱωϱϱχχχ
A3 μμωϱχϱχχχωϱϱχχψ
A4 μμωϱχχωχϱχϱϱχχχ
Table 5

Aggregated fuzzy weights

Weight A1 A2 A3 A4
1 (0,.46,.54,.90)(0,.46,.48,.90)(0,.36,.40,.80)(0,.46,.48,.90)(0,.40,.42,.90)
2 (0,.36,.40,.90)(0,.36,.40,.90)(0,.30,.34,.90)(0,.36,.40,.90)(0,.30,.34,.90)
3 (0,.54,.58,.90)(0,.54,.58,.90)(0,.40,.48,.80)(0,.54,.58,.90)(0,.44,.50,.90)
4 (.80,.90, 1, 1)(.80,.90, 1, 1)(.70,.88,.96, 1)(.80,.90, 1, 1)(.80,.90, 1, 1)
5 (0,.42,.46,.90)(0,.42,.82,.90)(0,.42,.46,.90)(0,.42,.46,.90)(0,.42,.46,.90)
6 (0,.38,.44, 1)(0,.38,.44, 1)(0,.28,.30, 1)(0,.38,.44, 1)(0,.28,.30, 1)
7 (0,.52,.54,.90)(0,.52,.54,.90)(0,.56,.62,.90)(0,.56,.62,.90)(0,.56,.62,.90)
8 (0,.60,.64, 1)(0,.60,.64, 1)(0,.60,.64, 1)(0,.62,.68, 1)(0,.60,.64, 1)
9 (.70,.86,.92, 1)(.70,.86,.92, 1)(.70,.88,.96, 1)(.70,.86,.92, 1)(.70,.88,.96, 1)
10 (0,.60,.64, 1)(0,.60,.64, 1)(0,.56,.62, 1)(0,.58,.66, 1)(0,.58,.60, 1)
11 (.10,.68,.74, 1)(.10,.68,.74, 1)(.40,.74,.80, 1)(.10,.70,.78, 1)(.40,.76,.84, 1)
12 (.10,.62,.68, 1)(.10,.62,.68, 1)(.40,.72,.76, 1)(.10,.62,.68, 1)(.40,.72,.76, 1)
13 (0,.54,.58, 1)(0,.54,.58, 1)(0,.60,.64, 1)(0,.54,.58, 1)(0,.62,.68, 1)
14 (.40,.66,.70, 1)(.40,.66,.70, 1)(.40,.70,.72, 1)(.40,.66,.70, 1)(.40,.70,.72, 1)
15 (.10,.54,.58, 1)(.10,.54,.58, 1)(.10,.64,.66, 1)(.10,.58,.60, 1)(.10,.64,.66, 1)

Step 4: Assume that the nth expert’s fuzzy rating and weight are χpqr = (χpqr1, χpqr2, χpqr3, χpqr4), and ωqr = (ωqr1, ωqr2, ωqr3, ωqr4). As a result, the aggregated fuzzy rating χpq of alternatives for each criterion can be determined as in Table 6.

Table 6

Weight of each criterion

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Weight.48.41.51.93.45.46.49.56.87.56.63.60.53.69.56
A1 .46.42.51.93.54.46.49.56.87.56.63.60.53.69.56
A2 .39.39.42.89.45.40.52.56.89.55.67.72.56.71.60
A3 .46.42.51.93.45.46.52.58.87.56.65.60.53.69.57
A4 .43.39.46.93.45.40.52.56.89.55.75.72.58.71.60

Step 5: Each criterion’s fuzzy weights are transformed to crisp values, and the fuzzy decision matrix is defuzzified, shown as Table 6.

Step 6: All criterions’ best Gq* and worst Gq- values were given in Table 7.

Table 7

Best and worst values

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Gq* .46.415.505.925.535.455.52.575.885.56.75.72.575.705.60
Gq- .39.385.42.885.445.395.49.56.87.545.63.60.53.69.555

Step 7: The values of S , and are shown in Table 8.

Table 8

S , and values for all Alternatives

A1 A2 A3 A4
S 4.924.944.052.9
.87.92.9.56
.921.70

Step 8: Table 9 shows the ranking of the Alternatives.

Table 9

Alternatives are ranked in ascending order by S , and

Rank1234
S A4 A3 A1 A2
A4 A1 A3 A2
A4 A3 A1 A2

Step 9: Table 10 shows the ranking of the alternatives.

Table 10

Criteria wise ranking of four alternatives

Ordering of Alternatives from high to low
1. 4 A3 A4 A1 A2
2. 9 A4 A2 A3 A1
3. 14 A4 A2 A3 A1
4. 11 A4 A2 A3 A1
5. 12 A2 A4 A1 A3
6. 10 A3 A1 A4 A2
7. 8 A3 A4 A2 A1
8. 15 A3 A4 A3 A1
9. 13 A4 A2 A3 A1
10. 3 A3 A1 A4 A2
11. 7 A4 A3 A2 A1
12. 1 A3 A1 A4 A2
13. 6 A3 A1 A4 A2
14. 5 A1 A3 A4 A2
15. 2 A3 A1 A4 A2

5Sensitivity analysis

In this study, sensitivity analysis evaluates the ranking of alternatives associated with various criteria. The main study of the paper is to find out the impact of different criteria in their respective rankings in different sectors like a rural area, urban area, a market area in a rural area, and market area in an urban area of Assam. Table 10 shows criteria wise ranking of vulnerability of four alternatives discussed in this study. The result shows that the alternative A1 (Rural Area) is the highest vulnerability in the criteria 5 , alternative A2 (Urban Area) is the highest vulnerability in the criteria 12 , alternative A3 (Market Area in Rural Area) is the highest vulnerability in the criteria 1 , 2 , 3 , 4 , 6 , 8 , 10 alternative A4 (Market Area in Urban Area) is the highest vulnerability in the criteria 7 , 9 , 11 , 13 , 14 respectively and alternative A1 (Rural Area) is the lowest vulnerability in the criteria 7 , 8 , 9 , 11 , 13 , 14 and 15 , alternative A2 (Urban Area) is the lowest vulnerability in the criteria 1 , 2 , 3 , 4 , 5 , 6 , 10 , 12 and alternative A3 (Market Area in Rural Area) is the lowest vulnerability in the criteria 12 . Table 11 shows ranking criteria weights, criteria, 4 (Not Maintaining the Social Distance) is the highest weights as per the experts followed by 9 (Lack of Restriction of Mass Gathering) and 14 (Government policies that effects the countries resource specially Staff of Health workers (Medical Stuff)) respectively while criteria 2 (cold day less than 25 C) has the least criteria weights.

Table 11

Ranking of criteria weights

1. 4
2. 9
3. 14
4. 11
5. 12
6. 10
7. 8
8. 15
9. 13
10. 3
11. 7
12. 1
13. 6
14. 5
15. 2

5.1Comparison

In [33], the authors used fuzzy logic approach to study prevention from COVID-19 in India. According to the study, the virus remains in the human body for 14 days. Also, they suggested if somebody travels history from the infected area then she/he has to undergo quarantine for 14 days. Also, in the study mainly observation of symptoms of COVID-19 is focused.

In our study, many different angles are observed including travel history and symptoms of the patients by applying the Fuzzy VIKOR method In Assam. Also, the present study tells of the ranking of the different criteria. This indicates persons alert or careful to people about the prevention of COVID-19.

In [34], different treatment options for COVID-19 using fuzzy PROMETHEE and VIKOR methods are discussed. According to the study overall, there is no globally approved specific antiviral drug available for COVID-19. All drug options come from the experience of treating SARS, MERS, or other new influenza viruses. Active symptomatic support is the key to treatment.

In our study, we have used the Fuzzy VIKOR method to analyze the importance of not maintaining Health Monitoring, Lack of health testing, Lack of quarantine of patients and those suspected of infection, Government policies that affect the country’s resources (especially materials Health Workers), Due to lack of less Medical workers (Medical stuff). Also, these criteria are arranged in systematic systems.

5.2Advantages of the studies

Our approach has several advantages over the existing multivariate regression approach as follows:

  • 1) This study shows the approach of Fuzzy VIKOR to analyze the approach to Identify COVID-19 Vulnerability Region in Assam, India to control the third wave or further wave of COVID-19.

  • 2) The Fuzzy VIKOR can identify the significant factors or different criteria of Vulnerability Region in Assam intention through relative weights based on experts’ opinions.

  • 3) The benefits of this research will accrue knowledge about the COVID-19 Vulnerability Region in Assam. Further, this study will show the ranking wise of each criteria Rainy Day, Cold Day, Sunny Day, Not maintaining Social Distance, Lately Quarantine lockdown, Lately declaration of emergency, Lately restriction on internal border restriction reducing the ability to move freely, Lack of restrictions of nonessential government service, Lack of restrictions of mass gathering, Not follow the curfew, Not maintaining Health Monitoring, Lack of health testing, Lack of quarantine of patients and those of suspected of infection, Government policies that effects the country’s resources (especially materials Health Workers) and Due to lack of less Medical workers (Medical stuff). Understanding these factors would enable the government to optimize its intervention strategies and accelerate the massive important steps to overcome against COVID-19 and can take the good initiative to control third wave or further wave of COVID-19.

6Conclusion

In this investigation, we evaluated the COVID-19 weakness in the Assam locale with Fuzzy VIKOR. We characterized the COVID-19 weakness as a component of environmental factors, social factors, and medical elements, and we profiled the critical pointers for weakness with the Expert’s decision. Fuzzy VIKOR technique is a useful apparatus in multi standards dynamic bargained arrangement which got, could be acknowledged by the experts since it gives the greatest gathering utility (represented by the minimum value of S) of the larger part, and at least the individual lament (represented by the minimum value of R) of the adversary. In this examination, we proposed an altered Fuzzy VIKOR that was upheld by the OWA administrator and decided loads of rules. As per the last score, the option A4 (least of ) that the Market Area in Urban Area is the weakest vulnerable area followed by A3 that is Market Area in rural Area options are second-most weakness vulnerable area. The spurt of cases in the second wave of the virus may be attributed to the gatherings during the recent election campaigning in the state. We hope this work will be able to help in controlling the third and further wave of COVID-19 in Assam, India.

There are some limitations to the study as well. First, because the laboratory selection problem’s decision-makers developed a team decision matrix, aggregation operations were not presented in real-life applications. Second, the study yielded positive results when additional experts were included. We’ve gathered five specialists on this case. The main limitation of the study is that selection of the criteria related to COVID-19 is challengeable.

For future research suggestions, we would like to propose different MCDM based on fuzzy and Neutrosophic sense to study the impact of COVID-19 in a different community of Assam by taking different criteria of the area. Because it is observed that some community has less influence than other community. For example, tribal people of Assam who live exclusively in rural areas or forest areas are less affected.

Acknowledgment

The authors would like to express sincere thanks and gratitude to experts for giving valuable suggestions for betterment of the manuscript. Also, the author (Harish Garg) is grateful to DST-FIST grant SR/FST/MS-1/2017/13 for providing technical support.

Supplementary material

[1] The supplementary material is available in the electronic version of this article: https://dx.doi.org/10.3233/JIFS-213279.

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