Universal Journal of Operations and Management最新文献

Designing an Efficient Restaurant Recommendation System Based on Customer Review Comments by Augmenting Hybrid Filtering Techniques 通过混合过滤技术设计基于顾客评论的高效餐厅推荐系统

Universal Journal of Operations and Management Pub Date : 2023-11-30 DOI: 10.37256/ujom.2220232998

Mauparna Nandan, Pourush Gupta

{"title":"Designing an Efficient Restaurant Recommendation System Based on Customer Review Comments by Augmenting Hybrid Filtering Techniques","authors":"Mauparna Nandan, Pourush Gupta","doi":"10.37256/ujom.2220232998","DOIUrl":"https://doi.org/10.37256/ujom.2220232998","url":null,"abstract":"Recommendation systems are being widely employed in order to provide users with a tailored set of services. They are primarily designed to generate advice or ideas (like restaurants, tourist places, medicines, movies, etc.) that address user concerns and can be efficiently utilized in a variety of industries. In today’s world, where we have a plethora of dining options available, choosing the right restaurant that matches our preferences can be a daunting task. To simplify this process and provide personalized recommendations, restaurant recommendation systems have emerged as a valuable tool. By leveraging the power of natural language processing (NLP), these systems can analyze textual data, such as user reviews and restaurant descriptions, to generate tailored suggestions for users. NLP is one of the machine learning techniques for intelligently and effectively analyzing, comprehending, and extracting meaning from human language. By utilizing techniques like sentiment analysis and named entity recognition, the system can understand user queries and match them with relevant restaurant attributes. It can consider factors such as cuisine type, price range, location, ambiance, and customer reviews to generate accurate and relevant recommendations. In the current study, the evaluation’s findings reveal that the suggested ExtraTreeRegressor algorithm outperforms other algorithms in terms of performance. The novelty of this research lies in the fact that here hybrid filtering is employed, which is not yet implemented in similar studies. The goal of this research article is to provide a more accurate and reachable list of suggested eateries. The results and conclusion show that the suggested approach produces good accuracy.","PeriodicalId":170563,"journal":{"name":"Universal Journal of Operations and Management","volume":"123 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139196763","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}

引用次数: 0

Effects of Casualisation on Mental Wellbeing and Risk Management in the Offshore Oil and Gas Industry 海上石油和天然气行业临时工对心理健康和风险管理的影响

Universal Journal of Operations and Management Pub Date : 2023-07-31 DOI: 10.37256/ujom.2220232965

Emma D’Antoine, J. Jansz, A. Barifcani, Sherrilyn Shaw-Mills, Mark A. Harris, C. Lagat

{"title":"Effects of Casualisation on Mental Wellbeing and Risk Management in the Offshore Oil and Gas Industry","authors":"Emma D’Antoine, J. Jansz, A. Barifcani, Sherrilyn Shaw-Mills, Mark A. Harris, C. Lagat","doi":"10.37256/ujom.2220232965","DOIUrl":"https://doi.org/10.37256/ujom.2220232965","url":null,"abstract":"This qualitative study was conducted with the aim of identifying psychosocial hazards in Australian offshore oil and gas facilities. Twenty-nine offshore oil and gas workers were interviewed via video link. Results indicated that, apart from the presence of a high-risk work environment as a source of mental and physical strain, there are organisational-specific stressors that cause workers' significant distress. Research results from NVivo analysis revealed that casualisation of the workforce was a major psychosocial hazard for offshore oil and gas workers, which resulted in feelings of insecurity, vulnerability and disconnection from work teams. In addition, a lack of stable income, an absence of opportunities to plan for the future and unsettled living arrangements worsen an already precarious existence. Findings show that a culture of blame and fear persists in some organisations, along with a lack of accountability and fear of making mistakes. The process of hiring, firing and rehiring was found to be a common practice by organisations in order to avoid their duty under the Fair Work Act amendments to offer casual conversion to their employees. Findings can be used to help inform organisational policies and assist in the development of risk control measures to minimise psychosocial hazards for offshore workers.","PeriodicalId":170563,"journal":{"name":"Universal Journal of Operations and Management","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116500183","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}

引用次数: 0

An Integrated Production and Inspection Model With a Heuristic Product Inspection Policy When Inspection Errors Exist 基于启发式检验策略的生产与检验集成模型

Universal Journal of Operations and Management Pub Date : 2023-04-25 DOI: 10.37256/ujom.2120232365

Neng-Hui Shih, W. Tsai, Chih-Hsiung Wang

引用次数: 0

Sustainability Performance Frontiers 可持续发展表现前沿

Universal Journal of Operations and Management Pub Date : 2023-04-19 DOI: 10.37256/ujom.2120232408

M. Leseure

引用次数: 0

Decision-Analytic, Simulation-Based Model for Plantation Management Under Uncertainty in a Competitive Environment 不确定竞争环境下人工林经营决策分析仿真模型

Universal Journal of Operations and Management Pub Date : 2023-01-13 DOI: 10.37256/ujom.2120232000

M. L. Chew Hernández, Isaac Hernández Arrieta, Rogel Fernando Retes Mantilla

{"title":"Decision-Analytic, Simulation-Based Model for Plantation Management Under Uncertainty in a Competitive Environment","authors":"M. L. Chew Hernández, Isaac Hernández Arrieta, Rogel Fernando Retes Mantilla","doi":"10.37256/ujom.2120232000","DOIUrl":"https://doi.org/10.37256/ujom.2120232000","url":null,"abstract":"This work takes a decision-analytic approach to develop a prescriptive model for three essential plantation management decisions: the size of the cultivated area, the method of cultivation, and the price at which the produce will be sold. These decisions are key to plantation performance and are made difficult by uncertainty and the fact that they are neither made simultaneously nor at the same informational state, aspects that the presented approach explicitly includes. The model is developed by addressing the management of a hypothetical plantation. Decision trees are used to represent the structure of the problem, and simulation is employed to calculate the plantation's expected sales given the market conditions. The simulation relies on a customer preference model that fulfills Keeney's Value-Focused Thinking (VFT) requirements for a proper value representation. The results are presented as recommendations for planted areas and cultivation methods, while the implemented selling price depends on the conditions observed at harvest (market and produce characteristics). According to the results, the presented approach is successful in guiding plantation management decisions and may be useful in increasing plantation competitiveness.","PeriodicalId":170563,"journal":{"name":"Universal Journal of Operations and Management","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121206628","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}

引用次数: 0

Transforming Trends of Operations Management Research 运营管理研究的转型趋势

Universal Journal of Operations and Management Pub Date : 2022-09-19 DOI: 10.37256/ujom.1220221886

B. Giri

引用次数: 0

Transformational Excellence: A Synthesis of Lean and Stress Management Intervention Research with Evidence-Based Actionable Guidelines

Universal Journal of Operations and Management Pub Date : 2022-08-18 DOI: 10.37256/ujom.1220221419

G. Fliedner

引用次数: 0

Strategic Introduction of the Blockchain Technology under Retailing Competition from New Entrants 零售业新进入者竞争下区块链技术的战略引入

Universal Journal of Operations and Management Pub Date : 2022-05-18 DOI: 10.37256/ujom.1120221320

Xu Jing, H. Lin, Jingjing Zhao, Yizhou Han

{"title":"Strategic Introduction of the Blockchain Technology under Retailing Competition from New Entrants","authors":"Xu Jing, H. Lin, Jingjing Zhao, Yizhou Han","doi":"10.37256/ujom.1120221320","DOIUrl":"https://doi.org/10.37256/ujom.1120221320","url":null,"abstract":"With the rapid development of blockchain technology, the new retail has diversified intelligent empowerment modes and achieved a leap change in the service system. As the competition in the retail industry becomes increasingly fierce, whether new entrants choose to introduce blockchain technology to improve their profits becomes the key to their development. This paper considers the system consisting of the incumbent retailer and the new entrant retailer, uses the game theory method to discuss their competition, considers the introduction cost of blockchain technology, and compares the two cases of the new entrant retailer not introducing blockchain technology and introducing blockchain technology. The results show that when the introduction of blockchain technology can fully make up for consumers’ concerns about the quality of new entrant retailers’ products and enhance consumers’ trust in their products, new entrant retailers will choose to introduce blockchain technology. And only when the introduction cost of blockchain technology is less than a certain threshold, it is beneficial for new entrant retailers to introduce blockchain technology. Finally, some numerical examples are given to illustrate the correctness of the above conclusions.","PeriodicalId":170563,"journal":{"name":"Universal Journal of Operations and Management","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130748863","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}

引用次数: 0

Adapted Fuzzy Multi-Objective Programming Algorithm for Vehicle Routing 车辆路径的自适应模糊多目标规划算法

Universal Journal of Operations and Management Pub Date : 2022-01-20 DOI: 10.37256/ujom.1120221144

Gulcin Dinc Yalcin, N. Erginel

{"title":"Adapted Fuzzy Multi-Objective Programming Algorithm for Vehicle Routing","authors":"Gulcin Dinc Yalcin, N. Erginel","doi":"10.37256/ujom.1120221144","DOIUrl":"https://doi.org/10.37256/ujom.1120221144","url":null,"abstract":"The vehicle routing problem (VRP) is a well-known problem in the logistics sector. In this study, two objectives, minimizing the total distance and maximizing the saving value, were considered in VRP with a fuzzy environment. The game theory approach is proposed for determining the weights of objectives when decision-makers have insufficient knowledge of assigning the weights. Thus, a fuzzy pay-off matrix is proposed for determining the weights of objectives by combining the fuzzy two-person zero-sum game with mixed strategies (FTZG with MS) and membership functions. Therefore, the fuzzy multi-objective programming (FMOP) model is adapted to the VRP model, which is named Adapted FMOP algorithm for VRP. Proposed algorithm clusters customers according to two objectives and by using four fuzzy operators, and routes customers with the traveling salesman problem (TSP) model in order to avoid the non-deterministic polynomial-time hardness (NP-hard) structure of VRP. In the end, the results are improved using local search methods. The main contribution of the Adapted FMOP algorithm for VRP is that it provides a solution that considers more than one objective without the need for decision makers’ view on the weights of objectives in all decision models in the fuzzy environment. Also, the proposed algorithm can find the solution with the help of a mathematical model without requiring any heuristics or metaheuristics, since it primarily performs clustering. Firstly, the efficiency of this algorithm was tested on problems in the literature. The Adapted FMOP algorithm for VRP achieved the best-known solutions by some small margins and exceeded the best-known solution for one problem in the literature. After seeing that the performance of the algorithm was sufficient, a data set of a firm in the construction sector was implemented to see how the algorithm works in real life and the obtained results were discussed. The solutions demonstrate that the Adapted FMOP algorithm for VRP also works well for real-world problems.","PeriodicalId":170563,"journal":{"name":"Universal Journal of Operations and Management","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125254734","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}

引用次数: 1

Role of Information Sharing on Supply Chain Performance – A Context of Developing Country 信息共享对供应链绩效的影响——以发展中国家为例

Universal Journal of Operations and Management Pub Date : 2022-01-06 DOI: 10.37256/ujom.1120221155

R. Maskey, Jiangang Fei, Hong-Oanh Nguyen

{"title":"Role of Information Sharing on Supply Chain Performance – A Context of Developing Country","authors":"R. Maskey, Jiangang Fei, Hong-Oanh Nguyen","doi":"10.37256/ujom.1120221155","DOIUrl":"https://doi.org/10.37256/ujom.1120221155","url":null,"abstract":"Purpose – This study aims at finding out how cost, quality, delivery and flexibility as supply chain performance (SCP) measures are affected by information sharing in the context of a developing country Nepal. \u0000Design/Methodology/Approach – The research was carried out in Nepal with data collected through a survey from 131 supply chain participants that includes suppliers, growers, manufacturers, distributors/dealers, wholesalers, retailers and logistics service providers. Exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and path analysis were performed to assess the fitness of the proposed model and test the hypothesis developed for this study. \u0000Findings – The findings demonstrated that information sharing plays a key role in enhancing the performance of supply chains (SC). It shows that delivery and flexibility performance are significantly affected by operational as well as strategic information sharing while cost and quality performance are not affected by information sharing. \u0000Originality/Value – This study adds to the existing knowledge by providing empirical support towards the role of operational and strategic information sharing on cost, quality, delivery and flexibility, especially in the context of a landlocked developing country. \u0000Research Limitations/Implications – The main limitation is the moderate response rate than desired. While the composition of respondents represented the targeted companies, most of the participants were manufacturers (56%). \u0000Practical Implications – The results of this study will help supply chain participants in Nepal to have an enhanced insight and awareness towards the importance of information sharing in enhancing their performance.","PeriodicalId":170563,"journal":{"name":"Universal Journal of Operations and Management","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128631746","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}

引用次数: 0