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2015 12th International Conference on Service Systems and Service Management (ICSSSM)最新文献

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Logistical synergistic capability and its mediating effects on market orientation-performance a conceptual framework 物流协同能力及其对市场导向绩效的中介作用:一个概念框架
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170175
W. Xiaoyu, Zhou Fei
Under Chinese business transformation and logistics outsourcing context, the importance of market orientation and synergistic collaboration are highlighted. Market orientation facilitates firm performance, but how to achieve it becomes a dilemma for firms and research scholars. Particularly with the increasing market competition, business transformation pressure and development of logistics outsourcing, more and more companies achieve market-oriented goals with logistics companies. Based on two cases study and resource-based theory and synergy theory, this paper constructs measurement of logistical synergistic capability and proposes a conceptual framework of its mediating effect on the relationship between market orientation and performance.
在中国商业转型和物流外包的背景下,强调了市场导向和协同合作的重要性。市场导向促进了企业绩效,但如何实现市场导向成为企业和研究学者的两难选择。特别是随着市场竞争的加剧、业务转型压力的加大和物流外包的发展,越来越多的企业借助物流公司实现了市场化的目标。基于资源基础理论和协同理论,本文构建了物流协同能力的测度,并提出了物流协同能力在市场导向与绩效关系中的中介作用的概念框架。
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引用次数: 1
Evaluation research on performance of Chinese agri-food cold-chain logistics company 我国农产品冷链物流企业绩效评价研究
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170142
Feng Tian, A. Taudes, Congcong Yang, Ai-min Deng
Food security concerns are drawing more and more attention in Chinese society. As one of the most effective way for improving food quality and safety, how to promote logistics ability of the Cold-Chain enterprise has become an emergency issue. This paper aims to build a performance evaluation system for the cold-chain company based on the Chinese agri-food industry to analyze its strengths and weaknesses for improving its competitiveness. Improved Analytic Hierarchy Process (AHP) and Fuzzy Comprehensive Evaluation methods are blended to evaluate the performance of the target company in three steps. In the first step, rely on the AHP, with the literature review and the theory of the balanced score card method, the determination of evaluation criteria and the hierarchical structure of the evaluation index system are done. In the second step, the weights of each criterion are obtained through improved AHP and then an agri-food cold-chain logistics enterprises performance evaluation index system will be built. And, in the third step, the Fuzzy Comprehensive Evaluation method is used to evaluate the performance of the target company with the performance evaluation index system. Finally, a demonstration of the numerical example in Chinese agri-food industry is presented for better understanding. The proposed performance evaluation index system can assist managers to comprehensive comprehend the strengths and weaknesses of their agri-food cold-chain companies and could continuously improve the relevant cold-chain performance factors from the practice.
食品安全问题越来越受到中国社会的关注。作为提高食品质量安全的最有效途径之一,如何提升冷链企业的物流能力已成为一个亟待解决的问题。本文旨在构建基于中国农产品食品行业的冷链企业绩效评价体系,分析冷链企业的优劣势,提高冷链企业的竞争力。将改进的层次分析法(AHP)与模糊综合评价法相结合,分三步对目标公司进行绩效评价。第一步,依托层次分析法,结合文献综述和平衡计分卡法理论,确定评价标准,构建评价指标体系的层次结构。第二步,通过改进的层次分析法得到各指标的权重,构建农产品冷链物流企业绩效评价指标体系。第三步,运用模糊综合评价法,结合绩效评价指标体系,对目标公司的绩效进行评价。最后,以中国农业食品行业为例进行了数值演示,以便更好地理解。本文提出的绩效评价指标体系可以帮助管理者全面了解其农产品冷链企业的优劣势,并从实践中不断完善相关冷链绩效因素。
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引用次数: 4
Online mining in unstructured financial information: An empirical study in bulletin news 非结构化金融信息的在线挖掘:基于公告新闻的实证研究
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170151
Chao Ma, Xun Liang
The Internet produces massive financial unstructured textual information every day. How to utilize these unstructured data effectively is a challenging topic. In the background of A share T+0 and stock option promoting in the China security market, we present a model to recognize the risk and investment opportunity according to the massive online financial textual information. Since the key word vector is in extremely high dimension space and critical in influencing the performance of our forecast models, a manifold learning method is firstly applied to reduce its dimension while keeping essential features. By utilizing financial event study, we secondly apply support vector machines to predict the news type and sentiment value. The model can achieve the intelligent and instant match between textual news and the reactions of stock market. Our results provide prompt supports for financial practitioners to make investment decisions no matter they are in long or in short positions in the market.
互联网每天都会产生大量的金融非结构化文本信息。如何有效地利用这些非结构化数据是一个具有挑战性的话题。在A股T+0和股票期权在中国证券市场推广的背景下,提出了一种基于海量网络金融文本信息的风险与投资机会识别模型。由于关键字向量在极高的维数空间中,对预测模型的性能影响很大,因此首先采用流形学习方法在保持基本特征的前提下进行降维。其次,利用金融事件研究,运用支持向量机对新闻类型和情绪值进行预测。该模型可以实现文本新闻与股市反应之间的智能即时匹配。我们的研究结果为金融从业者在市场上无论是做多还是做空的投资决策提供了及时的支持。
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引用次数: 5
Agriculture production planning under supply uncertainty and demand uncertainty 供给不确定性和需求不确定性下的农业生产计划
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170313
Yu Jianjun, Qiangqiang Zhu
This paper studies the company and the farmers how to make their optimal production and purchases decision in private under the random output and random market demand, studying the optimal results under optimal decision with mutual consideration of the parties in the case of independence. But for companies, only these coordinate farmers' production is not able to fully meet the company's needs, so there is a certain share of production will only be able to achieve through the purchase in the market, so that company must relay on the surrounding non-cooperative farmers to make sure the enough products apply, according to the size of the market to adjust reasonable purchases became the focus of corporate decision-making, as a two-way selection mechanism gainers households party the farmers can decide how much they sell their agricultural products to their partners or how much to sell in the foreign markets through the acquisition of personnel market price comparison . We practice with constructing a models to analyze the specific situation, in order to ensure the rationality of the model, closer to the actual market situation, in terms of output and demand uncertainty we use few randomness characterization, utilization characteristics of the newsboy model analysis. For the company we get how much to buy from market and the mount for farmer to sell to the company as two decision variables. then obtained some good results.
本文研究了在产量随机和市场需求随机的情况下,公司和农民如何在私人情况下做出最优的生产和购买决策,研究了在独立情况下双方相互考虑的最优决策下的最优结果。但是对于公司来说,只有这些协调农户的生产是不能完全满足公司的需求的,所以有一定份额的生产只能通过在市场上的收购来实现,所以公司必须依靠周边的非合作农户来保证有足够的产品适用,根据市场的规模来调整合理的收购成为公司决策的重点。作为一种双向选择机制,农民可以通过人员市场价格比较的获取来决定他们向合作伙伴出售多少农产品或向国外市场出售多少农产品。我们实践中用构建模型来分析具体情况,为了保证模型的合理性,更接近实际市场情况,在产出和需求的不确定性方面我们采用较少的随机性表征,利用报童模型的特点进行分析。对于公司,我们得到从市场买多少和农民卖给公司的数量作为两个决策变量。然后取得了一些不错的效果。
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引用次数: 1
Whether a team benefits if all members are proactive? A theoretical model 如果所有成员都积极主动,团队是否会受益?理论模型
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170207
Xuejie Liu, Mingjian Zhou, Jifan Ren
Little is known about the relationship between team proactivity and team performance. Drawing on cognitive theory, we argue that team task conflict and team relationship conflict may be the mediator between team proactivity and team performance and authoritarian leadership may moderate the mediation relationship. In the end, we discuss the contribution and the limitations of the model and suggest some directions for further research.
我们对团队主动性和团队绩效之间的关系知之甚少。运用认知理论,我们认为团队任务冲突和团队关系冲突可能是团队主动性与团队绩效之间的中介关系,而威权领导可能对中介关系起到调节作用。最后,讨论了模型的贡献和局限性,并提出了进一步研究的方向。
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引用次数: 0
The performance of PSO-SVM in inflation forecasting PSO-SVM在通货膨胀预测中的表现
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170251
Yizhou Tang, Jiawen Zhou
Analyzing inflation forecast problem, this paper proposes a SVM-based approach. Firstly, the paper reviews some former studies about inflation forecasting and predicting methodology, finding that SVM is a nonlinear adaptive data-driven model with strong approximation and generalization ability, which can be applied to complex forecasting tasks. Secondly, the paper establishes a SVM model and discusses the selection of kernel functions. Thirdly, the Particle Swarm Optimization (PSO) and the Genetic Algorithm (GA) are introduced to optimize the models. Then the SVM-based models (Fixed-SVM, PSO-SVM, GA-SVM) together with a BP neural network are employed to forecast Chinese inflation rate. The results show that the PSO-SVM performs better than BP and any other SVM-based model since its MSE of testing group is 0.006 and its absolute errors between predictions and real values are all below 0.02. It reveals that the final PSO-SVM model is promising in short-term inflation forecast.
在分析通货膨胀预测问题的基础上,提出了一种基于支持向量机的方法。本文首先回顾了以往关于通货膨胀预测和预测方法的研究,发现支持向量机是一种非线性自适应数据驱动模型,具有较强的近似和泛化能力,可以应用于复杂的预测任务。其次,建立了支持向量机模型,讨论了核函数的选取。第三,引入粒子群算法和遗传算法对模型进行优化。然后将基于svm的模型(Fixed-SVM、PSO-SVM、GA-SVM)与BP神经网络结合,对中国通货膨胀率进行预测。结果表明,PSO-SVM的性能优于BP和其他基于svm的模型,其测试组的MSE为0.006,预测值与实际值的绝对误差均小于0.02。结果表明,最终的PSO-SVM模型在短期通货膨胀预测中具有较好的应用前景。
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引用次数: 31
Surgical scheduling under patients' uncertain anesthesia recovery time 患者麻醉恢复时间不确定情况下的手术安排
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170236
Yue Zhu, Yulin Zhang, Zhuhan Jiao, Dong Li
For a medical system consisting of single operating room and single post anesthesia care unit, this paper studies the surgical scheduling problem under patients' uncertain anesthesia recovery time. The objective is to minimize the total idle time including operating room idle time and post anesthesia care unit idle time resulting from patients' too long or too short anesthesia recovery time. For given patients, surgical scheduling program can be found by means of Genetic Algorithm. The numerical simulation shows that executing surgeries for the patients who have longer expected anesthesia recovery time earlier can help to reduce total idle time.
针对由单个手术室和单个麻醉后护理单元组成的医疗系统,研究了患者麻醉恢复时间不确定情况下的手术调度问题。目的是尽量减少因患者麻醉恢复时间过长或过短而导致的总空闲时间,包括手术室空闲时间和麻醉后护理室空闲时间。对于给定的患者,可以通过遗传算法找到手术调度方案。数值模拟结果表明,对预期麻醉恢复时间较长的患者,尽早实施手术有助于减少总空闲时间。
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引用次数: 3
Impacts of leadership styles, job satisfaction, and job characteristics on public servants' organizational commitment 领导风格、工作满意度、工作特征对公务员组织承诺的影响
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170256
Pei-Kuan Lin, Shao-yu Li, Bich-Ngoc Thi Pham, Pao-Cheng Lin
This study sought to investigate relevant issues concerning the influences of leadership styles, job satisfaction, and job characteristics on Vietnamese public servants' organizational commitment. Among them, only leadership styles and job characteristics were found to have strong impacts on organizational commitment. The results of the current study were discussed at the end of the paper, along with some suggestions for public sector practitioners.
本研究旨在探讨领导风格、工作满意度和工作特质对越南公务员组织承诺的影响。其中,只有领导风格和工作特征对组织承诺有较强的影响。本文最后讨论了当前研究的结果,并对公共部门从业者提出了一些建议。
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引用次数: 4
Face recognition based on error detection under partial occlusion 局部遮挡下基于错误检测的人脸识别
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170323
Xiaolin Chen, Shunfang Wang, Weibo Liu
Face recognition presents the difficulty of occlusion. The occlusion is generally endowed a little weight to weaken its influence on recognition performance. On the basis of this idea, many existing algorithms used the reconstruction error or projection error as the probability estimation for occlusion image. These methods require iterative computation, which may lead to the difficulty of threshold selection and high time complexity. To solve these problems, this paper proposed a novel method for occlusion face recognition by using an error detection method. First, a face image is divided into four regions and we extract feature and detect error for each region. Second, we use the logarithmic transform error operator to calculate the weight value of each region. The experiments based on the AR database demonstrate that the proposed algorithm for occlusion face recognition achieves high efficiency and good robustness and outperforms the existing methods for certain occlusion recognition.
人脸识别存在遮挡困难。为了降低遮挡对识别性能的影响,遮挡通常被赋予较小的权重。基于这一思想,现有的许多算法使用重建误差或投影误差作为遮挡图像的概率估计。这些方法需要迭代计算,这可能导致阈值选择困难和时间复杂度高。针对这些问题,本文提出了一种基于误差检测的遮挡人脸识别新方法。首先,将人脸图像分成四个区域,对每个区域进行特征提取和误差检测。其次,我们使用对数变换误差算子来计算每个区域的权重值。基于AR数据库的实验表明,本文提出的遮挡人脸识别算法具有较高的效率和较好的鲁棒性,在某些遮挡识别方面优于现有方法。
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引用次数: 2
The momentum effect in China stock market 中国股市的动量效应
Pub Date : 2015-06-22 DOI: 10.1109/ICSSSM.2015.7170203
Jiang Yuanyuan, Bao Wenbin
Compared with the market, value, or size factor, momentum has offered investors the highest Sharpe ratio. However, in the research of domestic stock market, Chinese scholars find momentum profit exists only in the forming period and holding period within 4 weeks in China stock market. I find the momentum profits of domestic A shares are insignificantly negative using the monthly data, and after risk management, the domestic momentum has been slightly improved. Especially, the Sharpe ratio of the risk-managed momentum strategy has been greatly improved, changed from negative to positive.
与市场、价值或规模因素相比,动量为投资者提供了最高的夏普比率。然而,国内学者在对国内股票市场的研究中发现,在中国股票市场中,动量利润只存在于4周内的形成期和持有期。我使用月度数据发现国内A股的动量利润为不显著负,经过风险管理后,国内动量略有改善。特别是风险管理动量策略的夏普比率有了很大的提高,由负变为正。
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引用次数: 2
期刊
2015 12th International Conference on Service Systems and Service Management (ICSSSM)
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