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Profit-sensitive machine learning classification with explanations in credit risk: The case of small businesses in peer-to-peer lending 对利润敏感的机器学习分类与信用风险解释:同行借贷中的小企业案例
IF 5.9 3区 管理学 Q1 BUSINESS Pub Date : 2024-06-19 DOI: 10.1016/j.elerap.2024.101428
Miller-Janny Ariza-Garzón , Javier Arroyo , María-Jesús Segovia-Vargas , Antonio Caparrini

We propose a comprehensive profit-sensitive approach for credit risk modeling in P2P lending for small businesses, one of the most financially complex segments. We go beyond traditional and cost-sensitive approaches by including the financial costs and incomes through profits and introducing the profit information at three points of the modeling process: the estimation of the learning function of the classification algorithm (XGBoost in our case), the hyperparameter optimization, and the decision function. The profit-sensitive approaches achieve a higher level of profitability than the profit-insensitive approach in the small business case analyzed by granting mostly lower-risk, lower-amount loans. Explainability tools help us to discover the key features of such loans. Our proposal can be extended to other loan markets or other classification problems as long as the cells of the misclassification matrix have an economic value.

小企业是财务状况最复杂的细分市场之一,我们针对小企业 P2P 借贷中的信用风险建模提出了一种对利润敏感的综合方法。我们超越了传统的成本敏感型方法,通过利润纳入了财务成本和收入,并在建模过程的三个环节引入了利润信息:分类算法(在我们的案例中为 XGBoost)学习函数的估计、超参数优化和决策函数。在所分析的小企业案例中,对利润敏感的方法比对利润不敏感的方法实现了更高的盈利水平,主要是通过发放低风险、低金额的贷款。可解释性工具有助于我们发现此类贷款的关键特征。只要误分类矩阵的单元格具有经济价值,我们的建议就可以推广到其他贷款市场或其他分类问题中。
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引用次数: 0
Online promotion cooling? The influence mechanism of consumer loyalty in classic large-scale online social promotions 网络促销降温?经典大型网络社交促销活动中消费者忠诚度的影响机制
IF 5.9 3区 管理学 Q1 BUSINESS Pub Date : 2024-06-19 DOI: 10.1016/j.elerap.2024.101429
Min Zhang , Sihong Li

Consumer loyalty plays a significant role in the sustainable marketing of classic large-scale online social promotions (CLOSPs). However, existing research mainly focuses on the single consumption behavior of consumers, overlooking the exploration of consumer CLOSPs loyalty from both cognitive and behavioral perspectives. This study aims to bridge this gap in the literature by exploring the impact mechanism of environmental factors on consumer loyalty in CLOSPs based on signaling theory and social cognitive theory. We apply a mixed-methods design containing both qualitative and quantitative stages. The research results show that perceived promotional incentives are influenced by three types of environmental signals: social-, product-, and platform-related signals. Subjective norms, relationship benefits, product involvement, and path dependence form consumer loyalty by influencing consumer cognition (including flow experience and satisfaction). Subjective norms and relationship benefits correspond to the passive and active dimensions of social-related signals, respectively. Further, three configurations can lead to high levels of consumer loyalty to CLOSPs. Our findings propose that e-commerce practitioners should leverage environmental signals to stimulate perceived promotional incentives and foster high loyalty to CLOSPs.

消费者忠诚度在经典大型在线社交促销活动(CLOSPs)的可持续营销中发挥着重要作用。然而,现有研究主要关注消费者的单一消费行为,忽视了从认知和行为两个角度对消费者CLOSPs忠诚度的探讨。本研究旨在弥补这一文献空白,基于信号传递理论和社会认知理论,探讨环境因素对消费者CLOSPs忠诚度的影响机制。我们采用了混合方法设计,包括定性和定量两个阶段。研究结果表明,感知到的促销激励受三类环境信号的影响:社交信号、产品信号和平台相关信号。主观规范、关系利益、产品参与和路径依赖通过影响消费者认知(包括流动体验和满意度)形成消费者忠诚度。主观规范和关系利益分别对应于社会相关信号的被动和主动维度。此外,三种配置可导致消费者对 CLOSP 高度忠诚。我们的研究结果表明,电子商务从业者应利用环境信号来刺激感知促销激励,并培养消费者对CLOSP的高忠诚度。
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引用次数: 0
It’s better than nothing: The influence of service failures on user reusage intention in AI chatbot 有总比没有强:人工智能聊天机器人中服务故障对用户重用意愿的影响
IF 6 3区 管理学 Q1 BUSINESS Pub Date : 2024-06-16 DOI: 10.1016/j.elerap.2024.101421
Jinao Zhang, Xinyuan Lu, Wenqing Zheng, Xuelin Wang

Artificial intelligence (AI) chatbot have become increasingly popular as a tool for improving employee productivity over the last few years. In the early stages of AI chatbot development, exploring the impact of AI chatbot service failures on user reusage intention is useful for coordinating human–computer interaction and optimizing AI chatbot service mechanisms. The extant literature on AI service failures focuses on service recovery and anthropomorphism. There is less literature comparing different types of service failures and their effects. The article includes three studies. First, a randomized group experiment was conducted with 120 respondents. The results showed significant differences in the impact of different AI chatbot service failures on user reusage intentions. Second, an online questionnaire was completed by 386 respondents, the results found specific impact mechanisms of service failures on user reusage intentions. Third, an interview survey was conducted with 15 customers using AI chatbots to verify the findings of Study 1 and Study 2. Furthermore determine the boundary conditions for the unsupported hypotheses through meta-inference. The research enriches the literature on relationship marketing and expands the attribution theory of service failures. In addition, which provides theoretical basis and practical support for companies to reduce adverse effects of service failures.

人工智能(AI)聊天机器人作为一种提高员工工作效率的工具,在过去几年中越来越受欢迎。在人工智能聊天机器人开发的早期阶段,探索人工智能聊天机器人服务失败对用户重用意愿的影响有助于协调人机交互和优化人工智能聊天机器人服务机制。关于人工智能服务失败的现有文献主要集中在服务恢复和拟人化方面。比较不同类型的服务失败及其影响的文献较少。本文包括三项研究。首先,对 120 名受访者进行了随机分组实验。结果显示,不同的人工智能聊天机器人服务故障对用户重用意愿的影响存在明显差异。第二,对 386 名受访者进行了在线问卷调查,结果发现了服务故障对用户重用意愿的具体影响机制。第三,对 15 位使用人工智能聊天机器人的用户进行了访谈调查,以验证研究 1 和研究 2 的结论。此外还通过元推理确定了未支持假设的边界条件。该研究丰富了关系营销方面的文献,拓展了服务失败的归因理论。此外,这也为企业减少服务失败的不利影响提供了理论依据和实践支持。
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引用次数: 0
Advertising mode selection strategy under manufacturer encroachment 制造商蚕食下的广告模式选择策略
IF 6 3区 管理学 Q1 BUSINESS Pub Date : 2024-06-15 DOI: 10.1016/j.elerap.2024.101425
Yuxiang Zhang, Weijun Zhong

This paper analyzes the manufacturer and retailer’s advertising and pricing strategies within three typical modes of advertising under manufacturer encroachment and derives the optimal advertising mode. We find that if the supply chain members choose to advertise, compared to the scenario without manufacturer encroachment, the manufacturer gets more profit attributed to the expanded demand and advertising efforts, but the retailer gets more profit only if the advertising effectiveness is high. Then, we summarize that when the unit advertising cost is low, the supply chain members do not advertise under manufacturer encroachment. Thirdly, we find that retailer advertising cannot be the optimal advertising mode for the manufacturer. When the unit advertising cost is high and the substitutability level is low, joint advertising is optimal; otherwise, manufacturer advertising is optimal. Finally, we delve into the cost-sharing joint advertising strategy of the supply chain members, and find that within the scenario of cost-sharing joint advertising, the manufacturer can get more profit at the retailer’s expense compared to other advertising modes.

本文分析了制造商和零售商在制造商侵占下的三种典型广告模式下的广告和定价策略,并推导出最优广告模式。我们发现,如果供应链成员选择做广告,与没有制造商侵占的情况相比,制造商会因为需求扩大和广告力度加大而获得更多利润,但零售商只有在广告效果高的情况下才能获得更多利润。然后,我们总结出,当单位广告成本较低时,供应链成员不会在制造商侵占的情况下做广告。第三,我们发现零售商做广告并不是制造商的最优广告模式。当单位广告成本较高且可替代性水平较低时,联合广告是最优的;反之,制造商广告是最优的。最后,我们深入研究了供应链成员的成本分担联合广告策略,发现在成本分担联合广告的情况下,与其他广告模式相比,制造商可以通过牺牲零售商的利益获得更多利润。
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引用次数: 0
HeteLFX: Heterogeneous recommendation with latent feature extraction HeteLFX:利用潜在特征提取进行异构推荐
IF 5.9 3区 管理学 Q1 BUSINESS Pub Date : 2024-06-11 DOI: 10.1016/j.elerap.2024.101419
Hoon Park, Jason J. Jung

This study proposes a heterogeneous recommendation model that does not rely on data sharing. Previous studies have predominantly focused on nested homogeneous domains that share data. However, this approach encounters issues as it could lead to diminished recommendation performance when there is a scarcity of redundant data within these domains. To overcome these challenges, we propose the HeteLFX model, which extracts and bridges the latent features (LF) of each domain. This model resolves the problems by leveraging the metainformation of domain items to generate an LF. LF is extracted for each domain, and bridges are established based on the relevance of the latent knowledge, thereby enabling heterogeneous recommendations. The efficacy of the HeteLFX model was assessed by comparing it with four other heterogeneous recommendation systems, which are variants of X-Map and NX-Map. The results revealed that the HeteLFX model improved performance by reducing the mean absolute error (MAE) by approximately 0.3, thereby underscoring the superiority of the model. Additionally, HeteLFX reduced the MAE by up to approximately 0.45, depending on the relevance of the data within the domain.

本研究提出了一种不依赖数据共享的异构推荐模型。以往的研究主要关注共享数据的嵌套同构域。然而,这种方法会遇到一些问题,因为当这些领域内冗余数据稀缺时,它可能会导致推荐性能下降。为了克服这些挑战,我们提出了 HeteLFX 模型,该模型可提取并连接每个域的潜在特征(LF)。该模型利用域项的元信息生成 LF,从而解决了这些问题。为每个领域提取潜在特征,并根据潜在知识的相关性建立桥接,从而实现异构推荐。通过与其他四个异构推荐系统(X-Map 和 NX-Map 的变体)进行比较,评估了 HeteLFX 模型的功效。结果显示,HeteLFX 模型将平均绝对误差(MAE)降低了约 0.3,从而提高了性能,凸显了该模型的优越性。此外,根据域内数据的相关性,HeteLFX 最多可将 MAE 降低约 0.45。
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引用次数: 0
How perceived justice leads to stickiness to short-term rental platforms: Unveiling the effect of relationship commitment and trust 感知到的公正如何导致对短租平台的粘性:揭示关系承诺和信任的影响
IF 6 3区 管理学 Q1 BUSINESS Pub Date : 2024-06-09 DOI: 10.1016/j.elerap.2024.101422
Xusen Cheng , Xiaowen Huang , Bo Yang , Shan Chen , Yijun Yan

The rise of the sharing economy has transformed traditional housing rental practices, with short-term rental (STR) emerging as a successful model in the accommodation sector. However, information asymmetry and trust issues pose significant challenges within STR platforms, emphasizing the importance of improving user stickiness. This study utilizes a two-stage, multi-method approach to validate the dimensions of perceived justice among guests in STR settings and their impact on user stickiness. The results demonstrate that guests’ perceptions of justice are primarily influenced by dimensions such as distributive, interpersonal, informational, and procedural justice, which in turn positively affect platform stickiness through the mediation of trust and relationship commitment. These findings offer valuable insights for addressing justice concerns and enhancing user stickiness in the STR landscape.

共享经济的兴起改变了传统的房屋租赁方式,短期租赁(STR)成为住宿业的一种成功模式。然而,信息不对称和信任问题给短租平台带来了巨大挑战,强调了提高用户粘性的重要性。本研究采用两阶段、多方法的方法,验证了 STR 环境中客人感知到的公正性维度及其对用户粘性的影响。结果表明,游客的正义感主要受分配正义、人际正义、信息正义和程序正义等维度的影响,而这些维度又通过信任和关系承诺的中介作用对平台粘性产生积极影响。这些发现为在 STR 环境中解决公正问题和增强用户粘性提供了有价值的见解。
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引用次数: 0
Improved negative sampling method in collaborative filtering recommendation based on Generative adversarial network 基于生成式对抗网络的协同过滤推荐中的改进负抽样方法
IF 6 3区 管理学 Q1 BUSINESS Pub Date : 2024-06-01 DOI: 10.1016/j.elerap.2024.101412
Mingjie Li , Yunhan Liu , Weiwei Jiang , Yuxuan Zhu , Jiuchuan Jiang , Mingfeng Jiang , Shuqing Li

Objective

The problem of low model performance caused by the lack of negative samples in the recommendation method based on implicit feedback information can be solved.

Methods

The implicit feedback recommendation model DAEGAN is constructed based on the conditional generative adversarial network framework. The Denoising Auto-Encoder is used as a generator to capture nonlinear potential factors in the interaction and improve the robustness of model. In this paper, a strong and weak negative sampling strategy is proposed, which combines the visibility of user in time points to mine uninteresting items and acquire strong negative samples, and injects these information into the model by modifying the masking mechanism to solve the problem of missing negative samples.

Results

Experiments on MovieLens 100 K, Amazon Movie and TV, MovieLens 1 M datasets show that the recommendation accuracy of CFGAN based on strong and weak negative sampling and DAEGAN proposed in this paper has been improved.

Limitations

The generation of strong negative samples is based on user interaction records, which cannot solve effectively cold start problems in extremely sparse data.

Conclusions

After DAEGAN application, the strong and weak negative sampling method proposed in this paper has generally higher recommendation accuracy than those mainstream recommendation algorithms. The code is available at https://github.com/nanjingzhuyuxuan/DAEGAN.

方法基于条件生成对抗网络框架构建了隐式反馈推荐模型 DAEGAN。采用去噪自动编码器作为生成器,捕捉交互中的非线性潜在因素,提高模型的鲁棒性。结果在 MovieLens 100 K、Amazon Movie and TV、MovieLens 1 M 数据集上的实验表明,基于强弱负采样的 CFGAN 和本文提出的 DAEGAN 的推荐准确率得到了提高。局限性强负样本的生成基于用户交互记录,无法有效解决极度稀疏数据中的冷启动问题。结论在 DAEGAN 应用后,本文提出的强弱负采样方法的推荐准确率普遍高于主流推荐算法。代码见 https://github.com/nanjingzhuyuxuan/DAEGAN。
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引用次数: 0
Research on the joint event extraction method orientates food live e-commerce 联合事件提取方法研究以食品直播电子商务为导向
IF 6 3区 管理学 Q1 BUSINESS Pub Date : 2024-05-22 DOI: 10.1016/j.elerap.2024.101413
DianHui Mao , YiMing Liu , RuiXuan Li , JunHua Chen , YuanRong Hao , JianWei Wu

In the evolving landscape of food e-commerce live streaming, the profusion of textual data, marked by an excess of promotional vernacular and unstructured formats, presents a formidable challenge for event extraction. Addressing these hurdles, we introduce a tailored ontology-based method alongside FMLEE (Food Marketing Live Event Extraction), a joint event extraction algorithm. This approach simplifies the event identification process through meticulous segmentation and the development of an ontology comprising 5 event categories and 19 argument roles. By integrating context-aware embeddings derived from pre-trained language models and applying an adversarial learning tactic, our methodology not only bolsters the robustness of our model but also significantly refines its accuracy in discerning relevant events within the scarce-resource milieu of food live streaming promotions. The effectiveness of the FMLEE model is validated by its achievement of an F1 score of 73.05%, with the inclusion of adversarial learning contributing to a 2.61% enhancement in performance. This evidences our novel contribution to the domain, offering robust technical support for the optimal exploitation of information within the sphere of food live streaming promotions. Simultaneously, this aids in the investigation of innovative applications for consumer engagement within marketing strategies and the smart regulation of marketing activities.

在食品电子商务直播不断发展的过程中,大量的文本数据,加上过多的宣传用语和非结构化格式,给事件提取带来了巨大的挑战。为了解决这些问题,我们引入了一种基于本体的定制方法,以及一种联合事件提取算法 FMLEE(食品营销直播事件提取)。这种方法通过细致的细分和开发包含 5 个事件类别和 19 个参数角色的本体,简化了事件识别过程。通过整合来自预训练语言模型的上下文感知嵌入,并应用对抗学习策略,我们的方法不仅增强了模型的鲁棒性,还大大提高了其在资源稀缺的食品直播促销环境中辨别相关事件的准确性。FMLEE 模型的有效性通过其 73.05% 的 F1 分数得到了验证,其中包含的对抗学习使其性能提高了 2.61%。这证明了我们在该领域的新贡献,为食品直播推广领域的信息优化利用提供了强大的技术支持。同时,这也有助于研究消费者参与营销战略和营销活动智能监管的创新应用。
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引用次数: 0
Optimization of hybrid delivery by vehicle and drones 优化车辆和无人机的混合配送
IF 6 3区 管理学 Q1 BUSINESS Pub Date : 2024-05-22 DOI: 10.1016/j.elerap.2024.101411
Qiuchen Gu , Tijun Fan , Wanke Han

In this paper, we introduce the optimization of hybrid delivery by vehicle and drones. Hybrid delivery by vehicle and drones is advantageous for improving O2O last-mile delivery efficiency. However, vehicle stop selection and drone delivery sortie arrangement are challenging in the optimization of hybrid delivery by vehicle and drones because cyclic sorties and forward sorties jointly influence the total makespan of the delivery. To minimize the delivery makespan, an MILP model for hybrid delivery is formulated considering both the cyclic sorties and forward sorties of drones. In the proposed model, the intertwined influences of the flight times of cyclic and forward sorties and their further effects on total delivery makespan are depicted. Additionally, we introduce an ACO based on set covering for the selection of vehicle stops and a customized HGSADC for the arrangement of drone sorties. A study based on a simulated case and experiments based on 40 generated instances at different scales are explored to assess the optimization of hybrid delivery by vehicle and drones.

本文介绍了车辆和无人机混合配送的优化。车辆和无人机混合配送有利于提高 O2O 最后一英里配送效率。然而,在车辆和无人机混合配送的优化过程中,车辆停站选择和无人机配送架次安排是一个挑战,因为循环架次和前向架次会共同影响配送的总有效期。为了最大限度地减少送货时间跨度,考虑到无人机的循环飞行架次和前向飞行架次,建立了混合送货的 MILP 模型。在提出的模型中,描述了循环飞行架次和前向飞行架次的飞行时间的交织影响,以及它们对总运送间隔的进一步影响。此外,我们还引入了一种基于集合覆盖的 ACO 来选择车辆停靠点,以及一种定制的 HGSADC 来安排无人机飞行架次。基于模拟案例的研究和基于 40 个不同规模生成实例的实验,对车辆和无人机混合配送的优化进行了评估。
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引用次数: 0
Information transmit strategy of e-commerce platform with financially constrained supplier 供应商财务受限的电子商务平台的信息传递策略
IF 6 3区 管理学 Q1 BUSINESS Pub Date : 2024-05-20 DOI: 10.1016/j.elerap.2024.101415
Zhaobo Chen , Xin Li , Chunying Tian , Zhenzhen Shen

A signaling game model is constructed in the framework of a supply chain system consisting of a financially constrained supplier and an e-commerce platform acting as marketplace and a creditor simultaneously. The primary concern of this work is to investigate how the e-commerce platform, which has superior information about market demand, indirectly communicates this information to the financially constrained supplier through its marketing efforts. Under both separating and pooling equilibria, the decisions and profits of each member of the supply chain are firstly considered. Furthermore, using an “intuitive criterion”, the e-commerce platform’s dominant strategy and its influencing factors are analyzed. The results show that when there is a significant difference in the marginal marketing costs, the platform tends to choose the separating equilibrium. When the difference in marginal marketing costs is relatively slight, the e-commerce platform’s dominant strategy depends on the capital of the supplier and the level of market demand fluctuations. Specifically, the e-commerce platform will select the pooling equilibrium when market demand fluctuations are minimal, but the platform will select the separating equilibrium when market demand fluctuations are substantially large. If the supplier’s capital is increased within a certain range, the e-commerce platform is more motivated to select the pooling equilibrium. In addition, the platform usage fee ratio, the platform loan interest rate and the supplier’s prior beliefs are important factors influencing the platform’s decision.

本文在供应链系统框架下构建了一个信号博弈模型,该供应链系统由一个财务受限的供应商和一个同时充当市场和债权人的电子商务平台组成。这项工作的主要关注点是研究掌握市场需求优势信息的电子商务平台如何通过其营销工作将这些信息间接传递给财务受限的供应商。在分离均衡和集合竞价两种情况下,首先要考虑供应链中每个成员的决策和利润。此外,利用 "直观标准 "分析了电子商务平台的主导战略及其影响因素。结果表明,当边际营销成本存在显著差异时,平台倾向于选择分离均衡。当边际营销成本差异相对较小时,电商平台的主导策略取决于供应商的资本和市场需求波动水平。具体来说,当市场需求波动很小时,电商平台会选择集合均衡,但当市场需求波动很大时,电商平台会选择分离均衡。如果供应商的资本在一定范围内增加,电子商务平台会更积极地选择集合均衡。此外,平台使用费比率、平台贷款利率和供应商的先验信念也是影响平台决策的重要因素。
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引用次数: 0
期刊
Electronic Commerce Research and Applications
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