Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9672806
G. Schuh, A. Gützlaff, M. Schmidhuber, M. Krug
In recent years, the number of product variants has steadily increased in numerous industries to accommodate customer-specific requirements. At the same time, rapid technological changes have led to shortening product lifecycles and greater volatility in product portfolios. In manufacturing, the high level of product variety is reflected in greater process diversity and material flow complexity, making it harder to exploit economies of scale and utilize resources efficiently. In order to stay competitive under increased cost pressure, manufacturing companies try to counter these effects, but often lack transparency on product variety to successfully implement modular systems and standardization measures. As existing methods for capturing product variety are labor intensive and impractical for larger portfolios, this paper presents a data-driven approach by computing similarities between products based on their geometrical features. To capture product variety and create transparency, the similarities are visualized through a dendrogram and multidimensional scaling methods.
{"title":"Creating Transparency on Product Variety Through Data-driven Similarity Analysis","authors":"G. Schuh, A. Gützlaff, M. Schmidhuber, M. Krug","doi":"10.1109/IEEM50564.2021.9672806","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9672806","url":null,"abstract":"In recent years, the number of product variants has steadily increased in numerous industries to accommodate customer-specific requirements. At the same time, rapid technological changes have led to shortening product lifecycles and greater volatility in product portfolios. In manufacturing, the high level of product variety is reflected in greater process diversity and material flow complexity, making it harder to exploit economies of scale and utilize resources efficiently. In order to stay competitive under increased cost pressure, manufacturing companies try to counter these effects, but often lack transparency on product variety to successfully implement modular systems and standardization measures. As existing methods for capturing product variety are labor intensive and impractical for larger portfolios, this paper presents a data-driven approach by computing similarities between products based on their geometrical features. To capture product variety and create transparency, the similarities are visualized through a dendrogram and multidimensional scaling methods.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"116 1","pages":"1077-1081"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76708948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9672964
I. Gunawan, Dian Trihastuti, I. J. Mulyana
Coconut is one of Indonesia's strategic agricultural commodities. However, in the past five years, many issues on the sustainability of the coconut supply chain in Indonesia have been revealed in the mass media. This study aims to explore the issue by exploring discussions that emerge in online news articles. It employs content analysis and binary factor analysis to investigate and construct the information in identifying and narrating the issue of sustainability of the coconut supply chain in Indonesia. The result shows that the sustainability of the coconut supply chain in Indonesia experiences disruptions and requires an immediate long-term strategy for restoration. This will provide insight into the real condition of the coconut supply chain in Indonesia so that could become the basis for further research. Future work should include a simulation study to find the best policy in maintaining the sustainability of the coconut supply chain in Indonesia.
{"title":"Sustainability Issues of the Coconut Supply Chain in Indonesia","authors":"I. Gunawan, Dian Trihastuti, I. J. Mulyana","doi":"10.1109/IEEM50564.2021.9672964","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9672964","url":null,"abstract":"Coconut is one of Indonesia's strategic agricultural commodities. However, in the past five years, many issues on the sustainability of the coconut supply chain in Indonesia have been revealed in the mass media. This study aims to explore the issue by exploring discussions that emerge in online news articles. It employs content analysis and binary factor analysis to investigate and construct the information in identifying and narrating the issue of sustainability of the coconut supply chain in Indonesia. The result shows that the sustainability of the coconut supply chain in Indonesia experiences disruptions and requires an immediate long-term strategy for restoration. This will provide insight into the real condition of the coconut supply chain in Indonesia so that could become the basis for further research. Future work should include a simulation study to find the best policy in maintaining the sustainability of the coconut supply chain in Indonesia.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"56 1","pages":"158-162"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76847180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9672900
M. Cabecinhas, P. Sampaio, M. Casadesús
The most widely diffused ISO standards are ISO 9001 and ISO 14001. The main objectives of those are to demonstrate the capability to satisfy the requirements of the customers and to demonstrate the continuous search to reduce the impacts on the environment, respectively. However, these certifications will not necessarily be reflected in the performance of the company. Through the analysis of the literature, mixed results are observed, showing that not all certified companies could achieve benefits and improve the performance of the organization due to the ISO standards certification. Based on a literature review and a questionnaire survey, this paper defines a model where the main critical success factors which will influence the internalization level of the ISO 9001 and ISO 14001 are presented, and consequently their impacts on the organizations. This model could help researchers and practitioners in the process of evaluating the ISO standards impacts and the possible reasons for different outcomes.
{"title":"A Model to Assess the Impacts of ISO Management Systems Standards","authors":"M. Cabecinhas, P. Sampaio, M. Casadesús","doi":"10.1109/IEEM50564.2021.9672900","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9672900","url":null,"abstract":"The most widely diffused ISO standards are ISO 9001 and ISO 14001. The main objectives of those are to demonstrate the capability to satisfy the requirements of the customers and to demonstrate the continuous search to reduce the impacts on the environment, respectively. However, these certifications will not necessarily be reflected in the performance of the company. Through the analysis of the literature, mixed results are observed, showing that not all certified companies could achieve benefits and improve the performance of the organization due to the ISO standards certification. Based on a literature review and a questionnaire survey, this paper defines a model where the main critical success factors which will influence the internalization level of the ISO 9001 and ISO 14001 are presented, and consequently their impacts on the organizations. This model could help researchers and practitioners in the process of evaluating the ISO standards impacts and the possible reasons for different outcomes.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"25 1","pages":"1208-1215"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80165690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9672808
Xiaowen Sun, Limin Sun
In recent years, the advance selling strategy has been gradually applied to the sales of goods in various industries, including consumer electronics, fashion, travel, ticketing, and seasonal goods. Compared to traditional sales methods, retailers can use an advance selling strategy to attract consumers to order goods in advance, thereby mitigating the uncertainty of demand and increasing profits. As the advance selling strategy will make it impossible for consumers to accurately perceive the value of the product during the advance selling period, there may be a bias in the valuation of the product, which may result in consumers' decision not to book products in advance. The thesis studies a single advance selling strategy for storable goods. Based on consumer arrival rate and the distribution of product valuation, the thesis offers the optimal advance selling price for the single advance selling strategy that maximises consumers' expected profit.
{"title":"Advance Selling Strategy for Risk-averse Strategic Customers","authors":"Xiaowen Sun, Limin Sun","doi":"10.1109/IEEM50564.2021.9672808","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9672808","url":null,"abstract":"In recent years, the advance selling strategy has been gradually applied to the sales of goods in various industries, including consumer electronics, fashion, travel, ticketing, and seasonal goods. Compared to traditional sales methods, retailers can use an advance selling strategy to attract consumers to order goods in advance, thereby mitigating the uncertainty of demand and increasing profits. As the advance selling strategy will make it impossible for consumers to accurately perceive the value of the product during the advance selling period, there may be a bias in the valuation of the product, which may result in consumers' decision not to book products in advance. The thesis studies a single advance selling strategy for storable goods. Based on consumer arrival rate and the distribution of product valuation, the thesis offers the optimal advance selling price for the single advance selling strategy that maximises consumers' expected profit.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"290 1","pages":"1665-1670"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83145749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9672940
A. Staskiewicz, L. Hvam, Anders Haug
The increased demand for product variety implies that many manufacturing companies are struggling with the negative effects of stock keeping unit (SKU) proliferation in product portfolios. This implies that many companies implement SKU rationalisation programmes to deal with product and process complexity. However, many industry companies report that they do not gain the financial benefits that they expected from optimizing their portfolios. To improve the understanding of this phenomenon, this paper studies an unsuccessful SKU rationalisation project at a hearing healthcare company. The case study revealed that what appeared to be a great potential for reducing inventories through SKU rationalisation turned out to be more of an SKU management problem. Specifically, analyses showed that 19% of the hearing devices' product portfolios had multiple SKUs for the same product variant, and that SKU rationalisation would only produce minimal inventory-related benefits. The case study therefore demonstrates the importance of proper SKU management in identifying fruitful SKU rationalisation projects.
{"title":"The Role of SKU Management in SKU Rationalisation Projects","authors":"A. Staskiewicz, L. Hvam, Anders Haug","doi":"10.1109/IEEM50564.2021.9672940","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9672940","url":null,"abstract":"The increased demand for product variety implies that many manufacturing companies are struggling with the negative effects of stock keeping unit (SKU) proliferation in product portfolios. This implies that many companies implement SKU rationalisation programmes to deal with product and process complexity. However, many industry companies report that they do not gain the financial benefits that they expected from optimizing their portfolios. To improve the understanding of this phenomenon, this paper studies an unsuccessful SKU rationalisation project at a hearing healthcare company. The case study revealed that what appeared to be a great potential for reducing inventories through SKU rationalisation turned out to be more of an SKU management problem. Specifically, analyses showed that 19% of the hearing devices' product portfolios had multiple SKUs for the same product variant, and that SKU rationalisation would only produce minimal inventory-related benefits. The case study therefore demonstrates the importance of proper SKU management in identifying fruitful SKU rationalisation projects.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"21 1","pages":"259-263"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82061468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9673092
D. P. Sari, N. Masruroh, A. M. Asih
Regulation plays an essential role in handling electronic waste. Indonesia's electronic waste management system is still at the lowest level because it is still limited to informal initiatives. When making regulations, we should consider informal channels by collaborating with formal channels. Informal channels are given space for secondhand product sales and repairs, while formal channels focus on waste collection and recycling. Secondhand products still have a potential market. This study aims to analyze the relationship between demographic variables to purchasing decisions of secondhand smartphones and the factors that influence the purchasing decisions of secondhand smartphones. The survey was conducted on 328 smartphone users in Indonesia, in which 143 of them are consumers of secondhand smartphone products. The data was processed using the chi-square test and multiple regression analysis with SPSS version 22 software. Data processing shows that purchasing decisions of secondhand smartphones are related to demographic variables, gender, and education level and are also significantly influenced by product price, income, and product quality. The product diversity factor does not significantly influence purchasing decisions.
{"title":"Factors Affecting Consumer Acquisition of Secondhand Smartphone in Indonesia","authors":"D. P. Sari, N. Masruroh, A. M. Asih","doi":"10.1109/IEEM50564.2021.9673092","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9673092","url":null,"abstract":"Regulation plays an essential role in handling electronic waste. Indonesia's electronic waste management system is still at the lowest level because it is still limited to informal initiatives. When making regulations, we should consider informal channels by collaborating with formal channels. Informal channels are given space for secondhand product sales and repairs, while formal channels focus on waste collection and recycling. Secondhand products still have a potential market. This study aims to analyze the relationship between demographic variables to purchasing decisions of secondhand smartphones and the factors that influence the purchasing decisions of secondhand smartphones. The survey was conducted on 328 smartphone users in Indonesia, in which 143 of them are consumers of secondhand smartphone products. The data was processed using the chi-square test and multiple regression analysis with SPSS version 22 software. Data processing shows that purchasing decisions of secondhand smartphones are related to demographic variables, gender, and education level and are also significantly influenced by product price, income, and product quality. The product diversity factor does not significantly influence purchasing decisions.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"34 1","pages":"416-420"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82706036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9673087
Dinh Son Nguyen, K. T. Dang
The Covid-19 pandemic is one of the most serious global health epidemics in recent decades. Its consequences have affected hundreds of millions of people in countries around the world because of the high contagiousness and mortality rate of the virus. Since the fourth wave of Covid-19 infections broke out and spread to many cities and provinces in Vietnam, there were over 10,000 infected cases in the community within two months by the Delta coronavirus variants. Therefore, it is very necessary to have a faster and more effective method to prescreen and isolate infected patients as soon as possible. That is why the paper proposes a method using artificial intelligence techniques to detect covid-19 infected patients based on smartphone-recorded cough sounds. The learning models are built using the publicly available data as COUGHVID and Coswara. An analysis of the applicability of the learning models for prescreening Covid-19 patients in Vietnam is also mentioned in the paper.
{"title":"COVID-19 Detection Through Smartphone-recorded Coughs Using Artificial Intelligence: An Analysis of Applicability for Pre-screening COVID-19 Patients in Vietnam","authors":"Dinh Son Nguyen, K. T. Dang","doi":"10.1109/IEEM50564.2021.9673087","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9673087","url":null,"abstract":"The Covid-19 pandemic is one of the most serious global health epidemics in recent decades. Its consequences have affected hundreds of millions of people in countries around the world because of the high contagiousness and mortality rate of the virus. Since the fourth wave of Covid-19 infections broke out and spread to many cities and provinces in Vietnam, there were over 10,000 infected cases in the community within two months by the Delta coronavirus variants. Therefore, it is very necessary to have a faster and more effective method to prescreen and isolate infected patients as soon as possible. That is why the paper proposes a method using artificial intelligence techniques to detect covid-19 infected patients based on smartphone-recorded cough sounds. The learning models are built using the publicly available data as COUGHVID and Coswara. An analysis of the applicability of the learning models for prescreening Covid-19 patients in Vietnam is also mentioned in the paper.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"25 1","pages":"1392-1396"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85776376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9672863
Shixin Xie, Xu Wang, Biyu Yang, Mei Long, Jiyu Zhang, Lei Wang
Crowdsourcing is being used by more and more industries, which proves that this model is effective. In the crowdsourcing model, knowledge-intensive crowdsourcing (KI-C) has received widespread attention due to today's knowledge economy. The tasks submitted by consumers in KI-C are complicated and individualized, and it is difficult for one service provider to complete an entire task independently. Therefore, in order to effectively match suitable service providers for the complex tasks submitted by consumers, this paper proposes a multi-stage framework for complex task decomposition in KI-C. The framework contains the decomposition principles, searching similar tasks by word2vec and task packages obtained by genetic algorithm. The practicability and validity of this multi-stage framework are tested by a case study.
{"title":"A Multi-stage Framework for Complex Task Decomposition in Knowledge-intensive Crowdsourcing","authors":"Shixin Xie, Xu Wang, Biyu Yang, Mei Long, Jiyu Zhang, Lei Wang","doi":"10.1109/IEEM50564.2021.9672863","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9672863","url":null,"abstract":"Crowdsourcing is being used by more and more industries, which proves that this model is effective. In the crowdsourcing model, knowledge-intensive crowdsourcing (KI-C) has received widespread attention due to today's knowledge economy. The tasks submitted by consumers in KI-C are complicated and individualized, and it is difficult for one service provider to complete an entire task independently. Therefore, in order to effectively match suitable service providers for the complex tasks submitted by consumers, this paper proposes a multi-stage framework for complex task decomposition in KI-C. The framework contains the decomposition principles, searching similar tasks by word2vec and task packages obtained by genetic algorithm. The practicability and validity of this multi-stage framework are tested by a case study.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"27 1","pages":"1432-1436"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88766093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9673042
S. Eberlein, Susanne Schukraft, M. Freitag
To stay competitive, many industries have adopted the principles of lean manufacturing. A key principle is to implement pull control in production and material supply. In aerospace manufacturing, the large product size and low volumes result in significantly longer total task times and greater material demands in fewer overall stations. Consequently, the impact of material supply control is high, and its detailed evaluation is imperative. This paper presents a case study of the development of a pull principle for the material supply at a manufacturer of landing flaps, which comprised two major phases. First, a pull principle that enables minimization of work in process (WIP), particularly on the shop floor, was developed. Second, through the application of a discrete-event simulation study, optimal parameter settings were identified, and the developed concept was validated on a detailed operational level. Concept development has shown that the CONWIP principle is suitable for low volume environments with similar material demand characteristics as the landing flap assembly. The simulation study showed that a significant reduction of WIP without additional demands on logistics processes is possible.
{"title":"Simulation-based Design of a Pull Material Supply System for Low Volume Unpaced Assembly Lines: A Case Study in the Aerospace Industry","authors":"S. Eberlein, Susanne Schukraft, M. Freitag","doi":"10.1109/IEEM50564.2021.9673042","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9673042","url":null,"abstract":"To stay competitive, many industries have adopted the principles of lean manufacturing. A key principle is to implement pull control in production and material supply. In aerospace manufacturing, the large product size and low volumes result in significantly longer total task times and greater material demands in fewer overall stations. Consequently, the impact of material supply control is high, and its detailed evaluation is imperative. This paper presents a case study of the development of a pull principle for the material supply at a manufacturer of landing flaps, which comprised two major phases. First, a pull principle that enables minimization of work in process (WIP), particularly on the shop floor, was developed. Second, through the application of a discrete-event simulation study, optimal parameter settings were identified, and the developed concept was validated on a detailed operational level. Concept development has shown that the CONWIP principle is suitable for low volume environments with similar material demand characteristics as the landing flap assembly. The simulation study showed that a significant reduction of WIP without additional demands on logistics processes is possible.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"81 1","pages":"853-857"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89409733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.1109/IEEM50564.2021.9672904
Karindra Aulia Rahman, B. M. Sopha
Evacuation is a critical process that affects the reduction of loss risk. Previous studies have indicated that evacuation decision-making has significantly affected the effectiveness of evacuation efforts. The present study aims at evaluating the determinants of when-to-evacuate decisions. Analytical Hierarchy Process (AHP) and Multinomial Logistics Regression (MLR) were used to identify the determinants' relative importance and assess the relationship between the determinants and when-to-evacuate decisions. An empirical survey based on a hundred respondents who have experienced the Merapi eruption was conducted. AHP indicates that the most important determinants to the least are perceived hazard, distance to disaster, trust in leaders, disaster experience, ownership of livestock, and cultural belief. Disaster experience and trust in leaders are significant determinants for early evacuation, whereas the distance to disaster and livestock ownership are significant determinants for late evacuation. Avenues for future studies are also discussed.
{"title":"Determinants of When-to-evacuate Decisions: An Empirical Investigation","authors":"Karindra Aulia Rahman, B. M. Sopha","doi":"10.1109/IEEM50564.2021.9672904","DOIUrl":"https://doi.org/10.1109/IEEM50564.2021.9672904","url":null,"abstract":"Evacuation is a critical process that affects the reduction of loss risk. Previous studies have indicated that evacuation decision-making has significantly affected the effectiveness of evacuation efforts. The present study aims at evaluating the determinants of when-to-evacuate decisions. Analytical Hierarchy Process (AHP) and Multinomial Logistics Regression (MLR) were used to identify the determinants' relative importance and assess the relationship between the determinants and when-to-evacuate decisions. An empirical survey based on a hundred respondents who have experienced the Merapi eruption was conducted. AHP indicates that the most important determinants to the least are perceived hazard, distance to disaster, trust in leaders, disaster experience, ownership of livestock, and cultural belief. Disaster experience and trust in leaders are significant determinants for early evacuation, whereas the distance to disaster and livestock ownership are significant determinants for late evacuation. Avenues for future studies are also discussed.","PeriodicalId":6818,"journal":{"name":"2021 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)","volume":"1 1","pages":"880-884"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89201251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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