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Analysing the barriers in Indian stone crushing industries: an ISM and fuzzy AHP approach 基于ISM和模糊AHP的印度石材加工业壁垒分析
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-04-17 DOI: 10.1504/ijams.2020.10028578
Kunal K. Ganguly, D. Das
In an emerging economy like India, stone crushing industry for construction aggregates play a vital role for employment and economy. These industries are usually small scale and labour intensive in nature. Stone mining and crushing have a considerable impact on the biological resources as well as socio economic setting of local population. In this context, therefore, identifying and ranking the barriers that affect stone crushing operations becomes important. The present research attempts to explore various factors affecting stone crushing operations and their interactions. Interpretive structural modelling (ISM) is employed in this research to extract the interrelationships among the identified barriers and fuzzy analytic hierarchy process (F-AHP) applied to rank the barriers. This study can be taken as a reference by the decision makers while deciding the hierarchy of action necessary for effective operations of stone crushing units.
在印度这样的新兴经济体中,建筑骨料破碎行业对就业和经济起着至关重要的作用。这些产业通常规模较小,属于劳动密集型产业。石料的开采和破碎对当地的生物资源和社会经济环境都有相当大的影响。因此,在这种情况下,识别和排序影响石料破碎作业的障碍变得重要。本研究试图探讨影响石料破碎作业的各种因素及其相互作用。本研究采用解释结构模型(ISM)提取识别障碍之间的相互关系,并采用模糊层次分析法(F-AHP)对障碍进行排序。该研究可为决策者确定破碎机组有效运行所需的行动层次提供参考。
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引用次数: 5
Islamic work ethics: multidimensional constructs and scale validation 伊斯兰职业伦理:多维结构和规模验证
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-04-17 DOI: 10.1504/ijams.2020.10028579
S. Aldulaimi
This paper aims to validate an instrument to measure Islamic work ethic (IWE) dimensions as defined by Aldulaimi (2016). This paper reviews the foundations of IWE then, offer a multidimensional model (with 18 dimensions) can enable researchers to evaluate and measure work ethic in Islamic societies. A total of 1,252 respondents participated in this study to validate the IWE instrument. This study produces a valid instrument (questionnaire) consisting of 90 items (questions) to measure IWE in Muslim societies using the structural equation modelling (SEM). This study is one of the few attempts to suggest appropriate dimensions of Islamic work ethic in the management literature. It provides a measurement scale for 18 dimensions that promise to strengthen individual transparency and morally, which would eventually enhance economic progress in the Islamic world.
本文旨在验证Aldulaimi(2016)定义的测量伊斯兰职业道德(IWE)维度的工具。本文回顾了伊斯兰社会职业道德的基础,提出了一个多维模型(18个维度),使研究人员能够评估和衡量伊斯兰社会的职业道德。共有1,252名受访者参与了本研究,以验证IWE仪器。本研究产生了一个有效的工具(问卷),由90个项目(问题)组成,使用结构方程模型(SEM)来测量穆斯林社会的IWE。这项研究是为数不多的试图在管理文献中提出伊斯兰职业道德的适当维度的尝试之一。它提供了18个维度的衡量尺度,有望加强个人的透明度和道德,最终将促进伊斯兰世界的经济进步。
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引用次数: 9
Particle swarm optimisation-based source code plagiarism detection approach using non-negative matrix factorisation algorithm 基于粒子群优化的非负矩阵分解源代码抄袭检测方法
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-04-17 DOI: 10.1504/ijams.2020.10028577
M. Bhavani, K. T. Reddy, P. Varma
Source code plagiarism is easy to do the task, but very difficult to detect without proper tool support. Various source code similarity detection systems have been developed to help detect source code plagiarism. Numerous efforts have been made in the literature to introduce an efficient source code detection approach with less time complexity and accurate classification of plagiarised codes. However, there exists a tradeoff amongst the less complexity and high accuracy. In a similar way, this paper likewise attempted to build a framework to detect the plagiarised codes from the source code corpus. This approach employed an intelligent swarm optimisation algorithm known as PSO in the detection phase and robust matrix factorisation algorithm known as non-negative matrix factorisation based on alternative least square (ALS) algorithm for reduction of features from the sparse matrix. Depending on the implementation, ALS is very fast and significantly less work than an SVD implementation. The experimental results showed that it has good performance compared to the other existing approaches such as precision and recall.
源代码抄袭很容易完成任务,但如果没有适当的工具支持,很难检测。各种源代码相似度检测系统已经开发出来,以帮助检测源代码抄袭。文献中已经做了大量的努力来引入一种有效的源代码检测方法,该方法具有较低的时间复杂度和对抄袭代码的准确分类。然而,在较低的复杂性和较高的准确性之间存在权衡。同样,本文也试图构建一个从源代码语料库中检测抄袭代码的框架。该方法在检测阶段采用智能群优化算法(PSO)和鲁棒矩阵分解算法(基于可选最小二乘(ALS)算法的非负矩阵分解)从稀疏矩阵中约简特征。根据实现的不同,ALS非常快,而且比SVD实现的工作量少得多。实验结果表明,该方法在查准率和查全率等方面具有较好的性能。
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引用次数: 0
An assessment of attitude towards environment: a study of five star hotels in Rajasthan 对环境态度的评估:对拉贾斯坦邦五星级酒店的研究
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-04-02 DOI: 10.1504/ijams.2020.10028149
Smita Sharma, Naresh Mathur
The environmental attitudes of individuals are an important predictor of their behaviour towards environment. The present study examines the attitudes of hoteliers in Rajasthan towards environment. This research employs the Dunlap and Van Lierre's new ecological paradigm scale to analyse their attitude. The research is primarily exploratory in nature and comprised of 300 top and middle management people. The mean values ranged from 1.54 to 4.52 for odd and even numbered items. Three components have been extracted in the study. The Eigen values for three components extracted are greater than 1 (3.58, 2.00 and 1.757). This explains 73.37% of the variance in communalities. The NEP score in this study was 3.05, which indicates that ecological attitudes among the participating hotels were in accordance with the budding NEP. The study reflects fairly good intentions of the top management which can be translated into an effective environmental management plan for the organisation.
个体对环境的态度是其对环境行为的重要预测因素。本研究调查了拉贾斯坦邦酒店经营者对环境的态度。本研究采用Dunlap和Van Lierre的新生态学范式量表来分析他们的态度。该研究主要是探索性的,由300名高级和中级管理人员组成。奇数和偶数项目的平均值在1.54到4.52之间。研究中提取了三种成分。提取的三个分量的特征值均大于1(3.58、2.00和1.757)。这解释了73.37%的共同性方差。本研究中的NEP得分为3.05,表明参与酒店的生态态度与萌芽的NEP一致。该研究反映了最高管理层的良好意愿,可以转化为组织的有效环境管理计划。
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引用次数: 0
A new neighbourhood formation approach for solving cold-start user problem in collaborative filtering 一种新的邻域形成方法用于解决协同过滤中的冷启动用户问题
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-04-02 DOI: 10.1504/ijams.2020.10028148
Rahul Kumar, P. Bala, Shubhadeep Mukherjee
Collaborative filtering (CF) is the most widely accepted recommendation technique. Despite its popularity, this approach faces some major challenges like that of a cold-start user problem where a user has rated a handful of items. Due to very few ratings available for the cold-start users, their similarities with rest of the users has been questioned in the past, none have focused on their approach for neighbour identification. Whilst the traditional CF approaches select only those similar users as neighbours who have rated the item under consideration, the neighbourhood comprises of weak neighbours of the cold-start users. To address this shortcoming, our proposed approach selects neighbours with highest similarity irrespective of their availability of ratings for that item. Moreover, for the selected similar neighbours with missing ratings, an item based regression is performed to partially populate the matrix. The efficacy of the proposed neighbourhood formation approach addressing cold-start user problem is validated on two publicly available MovieLens datasets. Our approach provides superior quality of recommendations evaluated on a range of prediction and classification accuracy metrics. The results are encouraging particularly for systems having higher percentage of cold-start users which indicates the effectiveness of our approach in practical settings of new internet portals.
协同过滤(CF)是目前应用最广泛的推荐技术。尽管这种方法很受欢迎,但它也面临着一些重大挑战,比如冷启动用户问题,即用户对少数几个项目进行了评级。由于冷启动用户的可用评级很少,他们与其他用户的相似性在过去受到质疑,没有人关注他们的邻居识别方法。虽然传统的CF方法只选择那些对所考虑的项目进行评级的相似用户作为邻居,但邻居由冷启动用户的弱邻居组成。为了解决这个缺点,我们提出的方法选择具有最高相似性的邻居,而不考虑其对该项目的可用性评级。此外,对于选择的具有缺失评级的相似邻居,执行基于项的回归来部分填充矩阵。在两个公开可用的MovieLens数据集上验证了所提出的邻域形成方法解决冷启动用户问题的有效性。我们的方法在一系列预测和分类准确度指标上提供了高质量的推荐。结果令人鼓舞,特别是对于具有较高百分比的冷启动用户的系统,这表明我们的方法在新互联网门户的实际设置中的有效性。
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引用次数: 2
An inventory allocation algorithm in a periodic stock control system where demand type visibility is not available 需求类型不可见的周期性库存控制系统中的库存分配算法
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-04-02 DOI: 10.1504/ijams.2020.10028147
Burak Kandemir
We propose an algorithm for inventory allocation of common products among multiple customers in a make-to-forecast manufacturing system, which uses periodic stock review. The method takes backlogs, unfulfilled forecasts (that cannot be shipped until the end of the period), and planned safety stocks into account and has a series of steps, sequence of which are interchangeable. The algorithm is then applied to the manufacturing system summarised above and further analysis and statistical test show that it outperforms the system where only the demand type is considered and allocation efficiency increases.
在预测制造系统中,我们提出了一种在多个客户之间分配常见产品库存的算法,该算法使用定期库存审查。该方法考虑了积压、未完成的预测(直到期末才能发货)和计划的安全库存,并有一系列步骤,这些步骤的顺序是可互换的。然后将该算法应用于上面总结的制造系统,进一步的分析和统计测试表明,它优于仅考虑需求类型的系统,并且提高了分配效率。
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引用次数: 0
Money managers' interactions and Bayesian model 基金经理互动与贝叶斯模型
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-04-02 DOI: 10.1504/ijams.2020.10028150
Wei W. Simi, Xiaoli Wang
The essential incentives for investment portfolio managers are pursing relative outstanding portfolio performance among their peers in order to be rewarded for investment fund inflows. This competition for fund inflows has becomes dynamic games among money managers. This paper accordingly proposes a new strategic asset allocation methodology by considering strategic interactions among portfolio managers with the dynamic consideration of incomplete information. To be specific, we extended the approach of Basak and Makarov (2012) by considering the case that portfolio managers make strategic asset allocation decisions under the situation of incomplete information using the framework of Bayesian (Nash) equilibrium.
投资组合经理的基本动机是追求在同行中相对出色的投资组合业绩,以便从投资资金流入中获得回报。这种争夺资金流入的竞争,已成为基金经理之间的动态游戏。基于此,本文提出了一种考虑不完全信息动态情况下投资组合经理间战略互动的资产配置方法。具体而言,我们扩展了Basak和Makarov(2012)的方法,使用贝叶斯(纳什)均衡框架考虑了投资组合经理在不完全信息情况下进行战略性资产配置决策的情况。
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引用次数: 0
Tabu search and constraint programming-based approach for a real scheduling and routing problem 基于禁忌搜索和约束规划的实际调度和路由问题求解方法
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-02-11 DOI: 10.1504/ijams.2020.10026882
Abdellah El Fallahi, El Yaakoubi Anass, Mohammad Cherkaoui
Constraint programming method (CPM) has gained much attention in the last years since it proved a great efficiency to model and solve many combinatorial problems like scheduling, assignment and routing problems. In this paper, we first present a CPM model for a real scheduling and routing problem (SRP) faced by a company of water and electricity distribution. The problem aims to minimise the total distance travelled by the company's technicians to the clients' locations in order to carry out some services. To solve the studied SRP three CPM-based solution methods are proposed: an exact method (branch and prune), a local search meta-heuristic and a hybrid algorithm which combine tabu search and constraint programming method. The proposed solution methods have been tested using three sets of instances. The two first sets are generated randomly, they represent small and large scale instances, while the third one contain the real instances provided by the company with which we are working. The results obtained by the three methods show clearly the superiority of the hybrid algorithm over the two others methods.
约束规划方法(CPM)在求解调度、分配和路由等组合问题方面具有很高的效率,近年来受到了广泛的关注。本文首先针对某水电公司所面临的调度与路由问题,提出了一个CPM模型。该问题旨在最大限度地减少公司技术人员到客户地点的总距离,以便进行一些服务。为了解决SRP问题,提出了三种基于cpm的求解方法:精确方法(分支和剪枝)、局部搜索元启发式算法和禁忌搜索与约束规划相结合的混合算法。使用三组实例对所提出的解决方法进行了测试。前两个集合是随机生成的,它们代表了小型和大型实例,而第三个集合包含了我们正在工作的公司提供的真实实例。三种方法的计算结果表明,混合算法优于其他两种方法。
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引用次数: 3
Establishing and comparing electrical energy consumption of sawmills 锯木厂电能消耗的建立与比较
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-02-11 DOI: 10.1504/ijams.2020.10026883
Dayakar G. Devaru, Ramakrishna Maddula, B. Gopalakrishnan
Quantity of energy required to produce a unit of product or specific energy consumption (SEC) is an important aspect to lumber producing sawmills since it can also represent production efficiency to some extent. The current research focuses on establishing SEC profiles for hardwood lumber sawing in sawmills and comparing them with SEC of other sawmills. Benchmarking energy consumption will help the sawmill industry to know where it stands against industrial bests and realise how to improve their energy efficiency and productivity. SEC was calculated in the traditional way initially by taking total energy consumption from energy bills and dividing it by total board feet sawn. Sawmills produced different lumber sizes which affected energy consumption and hence a method based on surface area cut was developed to calculate SEC. Better results were obtained by SEC calculated based on surface area cut since it exposed production bottle necks than traditionally calculated SEC.
生产单位产品所需的能量或比能耗(SEC)是木材生产锯木厂的一个重要方面,因为它在某种程度上也可以代表生产效率。目前的研究重点是建立锯木厂硬木锯切的SEC剖面,并将其与其他锯木厂的SEC进行比较。基准能源消耗将有助于锯木厂行业了解其与工业最佳产品的对比,并意识到如何提高其能源效率和生产力。SEC最初是以传统方式计算的,即从能源账单中获得总能源消耗,并将其除以锯切的总板英尺。锯木厂生产的木材尺寸不同,这会影响能耗,因此开发了一种基于表面积切割的方法来计算SEC。由于SEC暴露了生产瓶颈,因此根据表面积切割计算的SEC比传统计算的SEC获得了更好的结果。
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引用次数: 0
Antecedents of online purchase intention in the context of social commerce 社交商务背景下网络购买意向的前提
IF 0.7 Q4 MANAGEMENT Pub Date : 2020-02-11 DOI: 10.1504/ijams.2020.10026881
Rishabh Shekhar, Uma Pricilda Jaidev
The present growth in the e-commerce platform has opened up social commerce (SC), which uses social media to enhance commerce using social interactions. A thorough literature survey led to the identification of s-commerce dimensions namely, ratings and reviews, forums and communities, recommendations and the referrals. In addition perceived usefulness, perceived ease of use was also identified as factors that may trigger intention to purchase. Trust in social commerce has been identified as a mediator in the relationship between social commerce constructs, perceived ease of use, perceived usefulness and intention to purchase. Stepwise regression was used to understand the strongest predictors of SC adoption. Mediation analysis is also used to establish the role of trust. The study found that trust acts as a mediator between: 1) social commerce construct; 2) perceived usefulness and intention to buy; 3) perceived ease of use and intention to buy. This study added a new construct and empirically tested the relationship among the constructs.
目前电子商务平台的增长开辟了社交商务(SC),它利用社交媒体来增强利用社交互动的商业。一项彻底的文献调查确定了电子商务的各个方面,即评级和评论、论坛和社区、建议和推荐。除了感知有用性外,感知易用性也被确定为可能引发购买意向的因素。对社交商业的信任已被确定为社交商业结构、感知易用性、感知有用性和购买意愿之间关系的中介。逐步回归用于了解SC采用的最强预测因素。调解分析也用于确定信任的作用。研究发现,信任在以下方面起中介作用:1)社会商业结构;2) 感知有用性和购买意愿;3) 感知的易用性和购买意愿。本研究增加了一个新的构念,并实证检验了构念之间的关系。
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引用次数: 10
期刊
International Journal of Applied Management Science
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