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Management Analysis Method of Multivariate Time Series Anomaly Detection in Financial Risk Assessment 金融风险评估中多元时间序列异常检测的管理分析方法
Pub Date : 2024-04-09 DOI: 10.4018/joeuc.342094
Yongshan Zhang, Zhiyun Jiang, Cong Peng, Xiumei Zhu, Gang Wang
The significance of financial risk lies in its impact on economic stability and individual/institutional financial security. Effective risk management is crucial for market confidence and crisis prevention. Current methods for multivariate time series anomaly detection have limitations in adaptability and generalization. To address this, we propose an innovative approach integrating contrastive learning and Generative Adversarial Networks (GANs). We use geometric distribution masking for data augmentation to enhance dataset diversity. Within the GAN framework, we train a Transformer-based autoencoder to capture normal point distributions. We include contrastive loss in the discriminator to ensure robust generalization. Rigorous experiments on four real-world datasets show that our method effectively mitigates overfitting and outperforms state-of-the-art approaches. This enhances anomaly identification in risk management, paving the way for deep learning in finance, and offering insights for future research and practical use.
金融风险的重要性在于其对经济稳定和个人/机构金融安全的影响。有效的风险管理对于市场信心和危机预防至关重要。目前的多变量时间序列异常检测方法在适应性和泛化方面存在局限性。为解决这一问题,我们提出了一种将对比学习和生成对抗网络(GANs)相结合的创新方法。我们使用几何分布掩码进行数据扩增,以增强数据集的多样性。在 GAN 框架内,我们训练基于变换器的自动编码器来捕捉正态点分布。我们在判别器中加入了对比损失,以确保强大的泛化能力。在四个真实世界数据集上进行的严格实验表明,我们的方法能有效缓解过拟合,并优于最先进的方法。这增强了风险管理中的异常识别能力,为金融领域的深度学习铺平了道路,并为未来的研究和实际应用提供了启示。
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引用次数: 0
Analyzing E-Commerce Market Data Using Deep Learning Techniques to Predict Industry Trends 利用深度学习技术分析电子商务市场数据,预测行业趋势
Pub Date : 2024-04-09 DOI: 10.4018/joeuc.342093
Wei Qian, Yijie Wang
Faced with challenges in sales predicting research, this article combines the capabilities of deep learning algorithms in handling complex tasks and unstructured data. Through analyzing consumer behavior, it selects factors influencing sales, including images, prices and discounts, and historical sales, as input variables for the model. Three different types of neural network models-fully connected neural networks, convolutional neural networks, and recurrent neural networks-are employed to process structured data, image data, and sales sequence data, respectively. This forms a deep neural network for feature representation. Subsequently, based on the outputs of these three types of deep neural networks, a fully connected neural network is employed to train the sales prediction model. Ultimately, experimental results demonstrate that the proposed sales prediction method outperforms exponential regression and shallow neural networks in terms of accuracy.
面对销售预测研究的挑战,本文结合了深度学习算法处理复杂任务和非结构化数据的能力。通过分析消费者行为,选择影响销售额的因素,包括图片、价格和折扣以及历史销售额,作为模型的输入变量。全连接神经网络、卷积神经网络和递归神经网络这三种不同类型的神经网络模型分别用于处理结构化数据、图像数据和销售序列数据。这就形成了一个用于特征表示的深度神经网络。随后,根据这三类深度神经网络的输出,采用全连接神经网络来训练销售预测模型。最终,实验结果表明,所提出的销售预测方法在准确性方面优于指数回归和浅层神经网络。
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引用次数: 0
User Engagement Detection-Based Financial Technology Advertising Video Effectiveness Evaluation 基于用户参与检测的金融科技广告视频效果评估
Pub Date : 2024-03-26 DOI: 10.4018/joeuc.340931
Qun Gao
With the rapid advancement of financial technology, an increasing number of related advertisements have received widespread attention. User engagement detection during the advertisement viewing process directly reflects the effectiveness of the advertising video. Therefore, detecting user engagement during the advertisement viewing process has become a crucial issue. However, traditional engagement detection methods often require significant computational resources, significantly reducing their practicality. To address this issue, the authors propose a method to effectively detect user engagement by fully integrating multiple relatively practical models. Specifically, the authors extract key frame images from user face video and perform super-resolution reconstruction of them. Then image pyramid matching is used to achieve user engagement detection. Finally, the authors establish a reasonable database and conduct sufficient experiments based on it. Experimental results demonstrate that this proposed method has realistic engagement detection accuracy, and the design of multiple steps is also valid.
随着金融科技的飞速发展,越来越多的相关广告受到广泛关注。广告观看过程中的用户参与度检测直接反映了广告视频的效果。因此,检测广告观看过程中的用户参与度已成为一个至关重要的问题。然而,传统的参与度检测方法往往需要大量的计算资源,大大降低了其实用性。针对这一问题,作者提出了一种通过充分整合多种相对实用的模型来有效检测用户参与度的方法。具体来说,作者从用户面部视频中提取关键帧图像,并对其进行超分辨率重建。然后利用图像金字塔匹配实现用户参与检测。最后,作者建立了一个合理的数据库,并在此基础上进行了充分的实验。实验结果表明,本文提出的方法具有真实的参与检测精度,而且多步骤的设计也是有效的。
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引用次数: 0
The Intelligent Advertising Image Generation Using Generative Adversarial Networks and Vision Transformer 使用生成式对抗网络和视觉转换器生成智能广告图像
Pub Date : 2024-03-26 DOI: 10.4018/joeuc.340932
Hang Zhang, Wenzheng Qu, Huizhen Long, Min Chen
With the continuous evolution of digital marketing, the generation of advertising images has become crucial in capturing user interest and enhancing advertising effectiveness. However, existing methods face limitations in meeting the diverse and creative demands of advertising content, necessitating innovative algorithms to improve advertising generation outcomes. In addressing these challenges, this study proposes a deep learning algorithm framework that cleverly integrates a generative adversarial network and an VGG-based visual transformer model to enhance the effectiveness of advertising image generation. Systematic experimentation shows that the model proposed in this article achieves an AUC metric value of more than 0.7 on several datasets. The results of the experiments demonstrate that the novel algorithm significantly improves the attractiveness of advertising content, particularly showcasing substantial benefits in website operations during online evaluation experiments.
随着数字营销的不断发展,广告图像的生成已成为吸引用户兴趣和提高广告效果的关键。然而,现有方法在满足广告内容多样化和创意性需求方面存在局限性,因此需要创新算法来改善广告生成结果。为应对这些挑战,本研究提出了一种深度学习算法框架,巧妙地整合了生成式对抗网络和基于 VGG 的视觉转换器模型,以提高广告图像生成的效果。系统实验表明,本文提出的模型在多个数据集上实现了超过 0.7 的 AUC 指标值。实验结果表明,新算法显著提高了广告内容的吸引力,尤其是在在线评估实验中为网站运营带来了巨大的好处。
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引用次数: 0
How Does Knowledge Management Matter for Supply Chain Resilience? 知识管理如何影响供应链的复原力?
Pub Date : 2024-03-20 DOI: 10.4018/joeuc.340721
Lingyu Hu, Xianglu Hua, Lianqing Zhang, Jie Zhou, Yubo Tu
Disruption events highlight the importance of supply chain resilience (SCR) and leave managers wondering what characteristics can help firms survive and recover. This study employs the knowledge-based theory to investigate factors contributing to SCR. Using data collected from 220 manufacturing firms in China, this study empirically examines the proposed research model. Results indicate KM processes (i.e., creation, sharing, utilization) significantly influence SCR, with collaborative innovation capability (CIC) mediating the relationship between KM and SCR. Interestingly, social media use positively moderates the relationship between knowledge sharing/utilization and CIC, while this effect is absent for the relationship between knowledge creation and CIC. These findings enrich the existing literature on knowledge management and supply chain management, offering managerial insights for effective knowledge strategies and resilience improvement.
破坏事件凸显了供应链复原力(SCR)的重要性,也让管理者们想知道哪些特征可以帮助企业生存和恢复。本研究采用基于知识的理论来探究导致 SCR 的因素。本研究利用从中国 220 家制造企业收集到的数据,对所提出的研究模型进行了实证检验。结果表明,知识管理过程(即创造、共享和利用)对 SCR 有显著影响,而协同创新能力(CIC)则是知识管理与 SCR 关系的中介。有趣的是,社交媒体的使用对知识共享/利用与 CIC 之间的关系起到了积极的调节作用,而对知识创造与 CIC 之间的关系则没有这种影响。这些发现丰富了有关知识管理和供应链管理的现有文献,为有效的知识战略和提高应变能力提供了管理启示。
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引用次数: 0
Deep Learning-Based Stock Market Prediction and Investment Model for Financial Management 基于深度学习的股市预测和金融管理投资模型
Pub Date : 2024-03-19 DOI: 10.4018/joeuc.340383
Yijing Huang, Vinay Vakharia
This study explores the potential application of deep learning techniques in stock market prediction and investment decision-making. The authors used multi-temporary stock data (MTS) for effective multi-scale feature extraction in reverse cross attention (RCA), combined with improved whale optimization algorithm (IWOA) to select the optimal parameters for the bidirectional long short-term memory network (BiLSTM) and constructed an innovative RCA-BiLSTM stock intelligent trend prediction model. At the same time, a complete RCA-BiLSTM-DQN stock intelligent prediction and investment model was established by combining the deep Q network (DQN) investment strategy. The research results indicate that the model has excellent sequence modeling and decision learning capabilities, which can capture the nonlinear characteristics and complex correlations of the market and provide more accurate prediction results. It can continuously improve the robustness and stability of the model through adaptive learning and automatic optimization.
本研究探讨了深度学习技术在股市预测和投资决策中的潜在应用。作者在反向交叉注意力(RCA)中使用多时股票数据(MTS)进行有效的多尺度特征提取,结合改进的鲸鱼优化算法(IWOA)为双向长短期记忆网络(BiLSTM)选择最优参数,构建了创新的 RCA-BiLSTM 股票智能趋势预测模型。同时,结合深度 Q 网络(DQN)投资策略,建立了完整的 RCA-BiLSTM-DQN 股票智能预测与投资模型。研究结果表明,该模型具有出色的序列建模和决策学习能力,能够捕捉市场的非线性特征和复杂的相关性,提供更准确的预测结果。通过自适应学习和自动优化,可以不断提高模型的鲁棒性和稳定性。
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引用次数: 0
Collaborative Application of Deep Learning Models for Enhanced Accuracy and Prediction in Carbon Neutrality Anomaly Detection 协同应用深度学习模型,提高碳中和异常检测的准确性和预测能力
Pub Date : 2024-03-19 DOI: 10.4018/joeuc.340385
Yi Wang, Tianyu Wang, Wanyu Wang, Yiru Hou
In the face of intensifying global climate change, carbon neutrality has emerged as a pivotal strategy to curb greenhouse gas emissions and confront the complexities associated with climate challenges. However, achieving carbon neutrality poses a formidable challenge: the identification and mitigation of anomalies within the carbon sequestration process. These anomalies can result in unintended carbon dioxide leakage, emissions, or system failures, thus jeopardizing the feasibility and resilience of carbon neutrality initiatives. This research introduces the ResNet-BIGRU-TPA network, an innovative model that integrates deep learning techniques with time series attention mechanisms. The primary focus centers on addressing the intricate task of anomaly detection within the realm of carbon offsetting, specifically aiming to enhance precision in identifying a wide array of complex anomalous events. Through rigorous experimental validation across four diverse datasets, the model has exhibited exceptional performance.
面对日益加剧的全球气候变化,碳中和已成为遏制温室气体排放和应对与气候挑战相关的复杂问题的关键战略。然而,实现碳中和提出了一个艰巨的挑战:识别和减少碳封存过程中的异常现象。这些异常现象可能导致二氧化碳意外泄漏、排放或系统故障,从而危及碳中和计划的可行性和适应性。这项研究引入了 ResNet-BIGRU-TPA 网络,这是一个将深度学习技术与时间序列关注机制相结合的创新模型。研究的主要重点是解决碳抵消领域异常检测的复杂任务,特别是提高识别各种复杂异常事件的精度。通过对四个不同数据集的严格实验验证,该模型表现出了卓越的性能。
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引用次数: 0
A Novel Deep Learning-Based Visual Search Engine in Digital Marketing for Tourism E-Commerce Platforms 基于深度学习的新型视觉搜索引擎在旅游电子商务平台数字营销中的应用
Pub Date : 2024-03-13 DOI: 10.4018/joeuc.340386
Yingli Wu, Qiuyan Liu
Visual search technology, because of its convenience and high efficiency, is widely used by major tourism e-commerce platforms in product search functions. This study introduces an innovative visual search engine model, namely CLIP-ItP, aiming to thoroughly explore the application potential of visual search in tourism e-commerce. The model is an extension of the CLIP (contrastive language-image pre-training) framework and is developed through three pivotal stages. Firstly, by training an image feature extractor and a linear model, the visual search engine labels images, establishing an experimental visual search engine. Secondly, CLIP-ItP jointly trains multiple text and image encoders, facilitating the integration of multimodal data, including product image labels, categories, names, and attributes. Finally, leveraging user-uploaded images and jointly selected product attributes, CLIP-ItP provides personalized top-k product recommendations.
视觉搜索技术因其便捷、高效的特点,被各大旅游电商平台广泛应用于产品搜索功能中。本研究引入了一个创新的视觉搜索引擎模型,即 CLIP-ItP,旨在深入探索视觉搜索在旅游电子商务中的应用潜力。该模型是 CLIP(对比语言-图像预训练)框架的扩展,通过三个关键阶段开发而成。首先,通过训练图像特征提取器和线性模型,视觉搜索引擎对图像进行标注,从而建立一个实验性的视觉搜索引擎。其次,CLIP-ItP 联合训练多个文本和图像编码器,促进多模态数据的整合,包括产品图像标签、类别、名称和属性。最后,CLIP-ItP 利用用户上传的图像和联合选择的产品属性,提供个性化的 top-k 产品推荐。
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引用次数: 0
Deep Learning and User Consumption Trends Classification and Analysis Based on Shopping Behavior 基于购物行为的深度学习和用户消费趋势分类与分析
Pub Date : 2024-03-12 DOI: 10.4018/joeuc.340038
Yishu Liu, Jia Hou, Wei Zhao
Driven by the wave of digitalization, the booming development of the e-commerce industry urgently requires in-depth analysis of user shopping behavior to improve service experience. In view of the limitations of traditional models in dealing with complex shopping scenarios, this study innovatively proposes a deep learning model: the VATA model (a combination of variational autoencoder, transformer, and attention mechanism). Through this model, the authors strive to classify and analyze user shopping behavior more accurately and intelligently. Variational autoencoder (VAE) can learn the potential representation of user personalized historical data, capture the implicit characteristics of shopping behavior, and improve the ability to deal with actual shopping situations. Transformer models can more comprehensively capture the dependencies between shopping behaviors and understand shopping. The overall structure of behavior plays an important role.
在数字化浪潮的推动下,电子商务行业的蓬勃发展迫切需要对用户购物行为进行深入分析,以改善服务体验。鉴于传统模型在处理复杂购物场景时的局限性,本研究创新性地提出了一种深度学习模型:VATA 模型(变异自动编码器、变换器和注意力机制的组合)。通过该模型,作者力求更准确、更智能地对用户购物行为进行分类和分析。变异自动编码器(VAE)可以学习用户个性化历史数据的潜在表征,捕捉购物行为的隐含特征,提高处理实际购物情况的能力。变换器模型可以更全面地捕捉购物行为之间的依赖关系,理解购物行为。行为的整体结构起着重要作用。
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引用次数: 0
Why Does Algorithmic Management Undermine Employee Creativity? 为什么算法管理会削弱员工的创造力?
Pub Date : 2024-03-12 DOI: 10.4018/joeuc.340037
Daiheng Li, Mingyue Liu, Yun Zhao, Yuzhu Li, Tao Zhang, Wenjia Zhang, Dongrui Xia, Bo Lv
With the rapid development of artificial intelligence technology, algorithmic management is increasingly prevalent in enterprises. Despite the considerable scholarly attention given to the impact of algorithmic management, a research gap remains regarding its influence on employee creativity. To address this gap, the authors developed a theoretical model using ability-motivation-opportunity (AMO) theory. This model aims to investigate the direct impacts of algorithmic management (opportunity) on employee creativity (performance) while also considering the mediating roles played by knowledge combination capability (ability) and achievement goal (motivation). Using a sample of 327 paired leader-employee data from an information technology service company, the findings reveal that algorithmic management has a negative effect on employee creativity. Furthermore, the results demonstrate that algorithmic management negatively influences employee creativity through its impact on knowledge combination capability and achievement goal.
随着人工智能技术的迅猛发展,算法管理在企业中日益盛行。尽管学术界对算法管理的影响给予了相当多的关注,但在算法管理对员工创造力的影响方面仍存在研究空白。针对这一空白,作者利用能力-动机-机会(AMO)理论建立了一个理论模型。该模型旨在研究算法管理(机会)对员工创造力(绩效)的直接影响,同时考虑知识组合能力(能力)和成就目标(动机)所起的中介作用。研究以一家信息技术服务公司的 327 个领导与员工配对数据为样本,发现算法管理对员工创造力有负面影响。此外,研究结果还表明,算法管理通过对知识组合能力和成就目标的影响,对员工创造力产生负面影响。
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引用次数: 0
期刊
Journal of Organizational and End User Computing
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