arXiv - CS - Computational Engineering, Finance, and Science最新文献_第9页

Advancement of metal oxide nanomaterials on agri-food fronts 推进金属氧化物纳米材料在农业食品领域的应用

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-29 DOI: arxiv-2407.19776

Georges Dubourg, Zoran Pavlović, Branimir Bajac, Manil Kukkar, Nina Finčur, Zorica Novaković, Marko Radović

{"title":"Advancement of metal oxide nanomaterials on agri-food fronts","authors":"Georges Dubourg, Zoran Pavlović, Branimir Bajac, Manil Kukkar, Nina Finčur, Zorica Novaković, Marko Radović","doi":"arxiv-2407.19776","DOIUrl":"https://doi.org/arxiv-2407.19776","url":null,"abstract":"The application of metal oxide nanomaterials (MOx NMs) in the agrifood\u0000industry offers innovative solutions that can facilitate a paradigm shift in a\u0000sector that is currently facing challenges in meeting the growing requirements\u0000for food production, while safeguarding the environment from the impacts of\u0000current agriculture practices. This review comprehensively illustrates recent\u0000advancements and applications of MOx for sustainable practices in the food and\u0000agricultural industries and environmental preservation. Relevant published data\u0000point out that MOx NMs can be tailored for specific properties, enabling\u0000advanced design concepts with improved features for various applications in the\u0000agrifood industry. Applications include nano-agrochemical formulation, control\u0000of food quality through nanosensors, and smart food packaging. Furthermore,\u0000recent research suggests MOx's vital role in addressing environmental\u0000challenges by removing toxic elements from contaminated soil and water. This\u0000mitigates the environmental effects of widespread agrichemical use and creates\u0000a more favorable environment for plant growth. The review also discusses\u0000potential barriers, particularly regarding MOx toxicity and risk evaluation.\u0000Fundamental concerns about possible adverse effects on human health and the\u0000environment must be addressed to establish an appropriate regulatory framework\u0000for nano metal oxide-based food and agricultural products.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863330","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

Application of Computer Technology in Financial Investment 计算机技术在金融投资中的应用

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-29 DOI: arxiv-2407.19684

Xinye Sha

{"title":"Application of Computer Technology in Financial Investment","authors":"Xinye Sha","doi":"arxiv-2407.19684","DOIUrl":"https://doi.org/arxiv-2407.19684","url":null,"abstract":"In order to understand the application of computer technology in financial\u0000investment, the author proposes a research on the application of computer\u0000technology in financial investment. The author used user transaction data from\u0000a certain online payment platform as a sample, with a total of 284908 sample\u0000records, including 593 positive samples (fraud samples) and 285214 negative\u0000samples (normal samples), to conduct an empirical study on user fraud detection\u0000based on data mining. In this process, facing the problem of imbalanced\u0000positive and negative samples, the author proposes to use the Under Sampling\u0000method to construct sub samples, and then perform feature scaling, outlier\u0000detection, feature screening and other processing on the sub samples. Then,\u0000four classification models, logistic regression, K-nearest neighbor algorithm,\u0000decision tree, and support vector machine, are trained on the processed sub\u0000samples. The prediction results of the four models are evaluated, and the\u0000results show that the recall rate, Fl score, and AUC value of the logistic\u0000regression model are the highest, indicating that the detection method based on\u0000computer data mining is practical and feasible.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863332","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

Billiards Sports Analytics: Datasets and Tasks 台球运动分析：数据集和任务

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-29 DOI: arxiv-2407.19686

Qianru Zhang, Zheng Wang, Cheng Long, Siu-Ming Yiu

{"title":"Billiards Sports Analytics: Datasets and Tasks","authors":"Qianru Zhang, Zheng Wang, Cheng Long, Siu-Ming Yiu","doi":"arxiv-2407.19686","DOIUrl":"https://doi.org/arxiv-2407.19686","url":null,"abstract":"Nowadays, it becomes a common practice to capture some data of sports games\u0000with devices such as GPS sensors and cameras and then use the data to perform\u0000various analyses on sports games, including tactics discovery, similar game\u0000retrieval, performance study, etc. While this practice has been conducted to\u0000many sports such as basketball and soccer, it remains largely unexplored on the\u0000billiards sports, which is mainly due to the lack of publicly available\u0000datasets. Motivated by this, we collect a dataset of billiards sports, which\u0000includes the layouts (i.e., locations) of billiards balls after performing\u0000break shots, called break shot layouts, the traces of the balls as a result of\u0000strikes (in the form of trajectories), and detailed statistics and performance\u0000indicators. We then study and develop techniques for three tasks on the\u0000collected dataset, including (1) prediction and (2) generation on the layouts\u0000data, and (3) similar billiards layout retrieval on the layouts data, which can\u0000serve different users such as coaches, players and fans. We conduct extensive\u0000experiments on the collected dataset and the results show that our methods\u0000perform effectively and efficiently.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863331","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

A novel Taguchi-based approach for optimizing neural network architectures: application to elastic short fiber composites 基于田口的优化神经网络架构新方法：应用于弹性短纤维复合材料

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-29 DOI: arxiv-2407.19802

Mohammad Hossein Nikzad, Mohammad Heidari-Rarani, Mohsen Mirkhalaf

{"title":"A novel Taguchi-based approach for optimizing neural network architectures: application to elastic short fiber composites","authors":"Mohammad Hossein Nikzad, Mohammad Heidari-Rarani, Mohsen Mirkhalaf","doi":"arxiv-2407.19802","DOIUrl":"https://doi.org/arxiv-2407.19802","url":null,"abstract":"This study presents an innovative application of the Taguchi design of\u0000experiment method to optimize the structure of an Artificial Neural Network\u0000(ANN) model for the prediction of elastic properties of short fiber reinforced\u0000composites. The main goal is to minimize the required computational effort for\u0000hyperparameter optimization while enhancing the prediction accuracy. Utilizing\u0000a robust design of experiment framework, the structure of an ANN model is\u0000optimized. This essentially is the identification of a combination of\u0000hyperparameters that yields an optimal predictive accuracy with the fewest\u0000algorithmic runs, thereby achieving a significant reduction of the required\u0000computational effort. Our findings demonstrate that the Taguchi method not only\u0000streamlines the hyperparameter tuning process but also could substantially\u0000improve the algorithm's performance. These results underscore the potential of\u0000the Taguchi method as a powerful tool for optimizing machine learning\u0000algorithms, particularly in scenarios where computational resources are\u0000limited. The implications of this study are far-reaching, offering insights for\u0000future research in the optimization of different algorithms for improved\u0000accuracies and computational efficiencies.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863335","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

CIDER: Counterfactual-Invariant Diffusion-based GNN Explainer for Causal Subgraph Inference CIDER：基于反事实不变量扩散的 GNN 因果子图推理解释器

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-28 DOI: arxiv-2407.19376

Qibin Zhang, Chengshang Lyu, Lingxi Chen, Qiqi Jin, Luonan Chen

{"title":"CIDER: Counterfactual-Invariant Diffusion-based GNN Explainer for Causal Subgraph Inference","authors":"Qibin Zhang, Chengshang Lyu, Lingxi Chen, Qiqi Jin, Luonan Chen","doi":"arxiv-2407.19376","DOIUrl":"https://doi.org/arxiv-2407.19376","url":null,"abstract":"Inferring causal links or subgraphs corresponding to a specific phenotype or\u0000label based solely on measured data is an important yet challenging task, which\u0000is also different from inferring causal nodes. While Graph Neural Network (GNN)\u0000Explainers have shown potential in subgraph identification, existing methods\u0000with GNN often offer associative rather than causal insights. This lack of\u0000transparency and explainability hinders our understanding of their results and\u0000also underlying mechanisms. To address this issue, we propose a novel method of\u0000causal link/subgraph inference, called CIDER: Counterfactual-Invariant\u0000Diffusion-based GNN ExplaineR, by implementing both counterfactual and\u0000diffusion implementations. In other words, it is a model-agnostic and\u0000task-agnostic framework for generating causal explanations based on a\u0000counterfactual-invariant and diffusion process, which provides not only causal\u0000subgraphs due to counterfactual implementation but reliable causal links due to\u0000the diffusion process. Specifically, CIDER is first formulated as an inference\u0000task that generatively provides the two distributions of one causal subgraph\u0000and another spurious subgraph. Then, to enhance the reliability, we further\u0000model the CIDER framework as a diffusion process. Thus, using the causal\u0000subgraph distribution, we can explicitly quantify the contribution of each\u0000subgraph to a phenotype/label in a counterfactual manner, representing each\u0000subgraph's causal strength. From a causality perspective, CIDER is an\u0000interventional causal method, different from traditional association studies or\u0000observational causal approaches, and can also reduce the effects of unobserved\u0000confounders. We evaluate CIDER on both synthetic and real-world datasets, which\u0000all demonstrate the superiority of CIDER over state-of-the-art methods.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863333","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

Smart Contracts, Smarter Payments: Innovating Cross Border Payments and Reporting Transactions 智能合约，智能支付：创新跨境支付和报告交易

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-27 DOI: arxiv-2407.19283

Maruf Ahmed Mridul, Kaiyang Chang, Aparna Gupta, Oshani Seneviratne

{"title":"Smart Contracts, Smarter Payments: Innovating Cross Border Payments and Reporting Transactions","authors":"Maruf Ahmed Mridul, Kaiyang Chang, Aparna Gupta, Oshani Seneviratne","doi":"arxiv-2407.19283","DOIUrl":"https://doi.org/arxiv-2407.19283","url":null,"abstract":"The global financial landscape is experiencing significant transformation\u0000driven by technological advancements and evolving market dynamics. Moreover,\u0000blockchain technology has become a pivotal platform with widespread\u0000applications, especially in finance. Cross-border payments have emerged as a\u0000key area of interest, with blockchain offering inherent benefits such as\u0000enhanced security, transparency, and efficiency compared to traditional banking\u0000systems. This paper presents a novel framework leveraging blockchain technology\u0000and smart contracts to emulate cross-border payments, ensuring interoperability\u0000and compliance with international standards such as ISO20022. Key contributions\u0000of this paper include a novel prototype framework for implementing smart\u0000contracts and web clients for streamlined transactions and a mechanism to\u0000translate ISO20022 standard messages. Our framework can provide a practical\u0000solution for secure, efficient, and transparent cross-border transactions,\u0000contributing to the ongoing evolution of global finance and the emerging\u0000landscape of decentralized finance.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863334","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

Agent-Based Insight into Eco-Choices: Simulating the Fast Fashion Shift 基于代理的生态选择洞察力：模拟快速时尚转变

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-26 DOI: arxiv-2407.18814

Daria Soboleva, Angel Sánchez

{"title":"Agent-Based Insight into Eco-Choices: Simulating the Fast Fashion Shift","authors":"Daria Soboleva, Angel Sánchez","doi":"arxiv-2407.18814","DOIUrl":"https://doi.org/arxiv-2407.18814","url":null,"abstract":"Fashion is a powerful force in the modern world. It is one of the most\u0000accessible means of self-expression, thereby playing a significant role in our\u0000society. Yet, it is plagued by well-documented issues of waste and human rights\u0000abuses. Fast fashion in particular, characterized by its disposable nature,\u0000contributes extensively to environmental degradation and CO$_2$ emissions,\u0000surpassing the combined outputs of France, Germany, and the UK, but its\u0000economic contributions have somewhat shielded it from criticism. In this paper,\u0000we examine the demand for fast fashion, with a focus on Spain. We explore the\u0000individual decision-making process involved in choosing to buy fast fashion and\u0000the role of awareness regarding working conditions, environmental consequences,\u0000and education on sustainable fashion in influencing consumer behavior. By\u0000employing Agent-Based Modeling, we investigate the factors influencing garment\u0000consumption patterns and how shifts in public opinion can be achieved through\u0000peer pressure, social media influence, and government interventions. Our study\u0000revealed that government interventions are pivotal, with the state's campaigns\u0000setting the overall tone for progress, although its success is conditioned by\u0000social media and polarization levels of the population. Importantly, the state\u0000does not need to adopt an extremely proactive stance or continue the campaigns\u0000indefinitely to achieve optimal results, as excessive interventions yield\u0000diminishing returns.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863185","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

Using high-fidelity discrete element simulation to calibrate an expeditious terramechanics model in a multibody dynamics framework 在多体动力学框架下利用高保真离散元素模拟校准快速地形力学模型

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-26 DOI: arxiv-2407.18903

Yuemin Zhang, Junpeng Dai, Wei Hu, Dan Negrut

{"title":"Using high-fidelity discrete element simulation to calibrate an expeditious terramechanics model in a multibody dynamics framework","authors":"Yuemin Zhang, Junpeng Dai, Wei Hu, Dan Negrut","doi":"arxiv-2407.18903","DOIUrl":"https://doi.org/arxiv-2407.18903","url":null,"abstract":"The wheel-soil interaction has great impact on the dynamics of off-road\u0000vehicles in terramechanics applications. The Soil Contact Model (SCM), which\u0000anchors an empirical method to characterize the frictional contact between a\u0000wheel and soil, has been widely used in off-road vehicle dynamics simulations\u0000because it quickly produces adequate results for many terramechanics\u0000applications. The SCM approach calls for a set of model parameters that are\u0000obtained via a bevameter test. This test is expensive and time consuming to\u0000carry out, and in some cases difficult to set up, e.g., in extraterrestrial\u0000applications. We propose an approach to address these concerns by conducting\u0000the bevameter test in simulation, using a model that captures the physics of\u0000the actual experiment with high fidelity. To that end, we model the bevameter\u0000test rig as a multibody system, while the dynamics of the soil is captured\u0000using a discrete element model (DEM). The multibody dynamics--soil dynamics\u0000co-simulation is used to replicate the bevameter test, producing high-fidelity\u0000ground truth test data that is subsequently used to calibrate the SCM\u0000parameters within a Bayesian inference framework. To test the accuracy of the\u0000resulting SCM terramechanics, we run single wheel and full rover simulations\u0000using both DEM and SCM terrains. The SCM results match well with those produced\u0000by the DEM solution, and the simulation time for SCM is two to three orders of\u0000magnitude lower than that of DEM. All simulations in this work are performed\u0000using Chrono, an open-source, publicly available simulator. The scripts and\u0000models used are available in a public repository for reproducibility studies\u0000and further research.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141863095","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

Efficient computational homogenization via tensor train format 通过张量列车格式实现高效计算同质化

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-26 DOI: arxiv-2407.18870

Yuki Sato, Yuto Lewis Terashima, Ruho Kondo

引用次数: 0

A simple hybrid linear and non-linear interpolation finite element for adaptive cracking elements method 用于自适应裂纹元素法的简单线性和非线性混合插值有限元

arXiv - CS - Computational Engineering, Finance, and Science Pub Date : 2024-07-24 DOI: arxiv-2407.17104

Xueya Wang, Yiming Zhang, Minjie Wen, Herbert Mang

{"title":"A simple hybrid linear and non-linear interpolation finite element for adaptive cracking elements method","authors":"Xueya Wang, Yiming Zhang, Minjie Wen, Herbert Mang","doi":"arxiv-2407.17104","DOIUrl":"https://doi.org/arxiv-2407.17104","url":null,"abstract":"Cracking Elements Method (CEM) is a numerical tool to simulate quasi-brittle\u0000fractures, which does not need remeshing, nodal enrichment, or complicated\u0000crack tracking strategy. The cracking elements used in the CEM can be\u0000considered as a special type of finite element implemented in the standard\u0000finite element frameworks. One disadvantage of CEM is that it uses nonlinear\u0000interpolation of the displacement field (Q8 or T6 elements), introducing more\u0000nodes and consequent computing efforts than the cases with elements using\u0000linear interpolation of the displacement field. Aiming at solving this problem,\u0000we propose a simple hybrid linear and non-linear interpolation finite element\u0000for adaptive cracking elements method in this work. A simple strategy is\u0000proposed for treating the elements with $p$ edge nodes $pinleft[0,nright]$\u0000and $n$ being the edge number of the element. Only a few codes are needed.\u0000Then, by only adding edge and center nodes on the elements experiencing\u0000cracking and keeping linear interpolation of the displacement field for the\u0000elements outside the cracking domain, the number of total nodes was reduced\u0000almost to half of the case using the conventional cracking elements. Numerical\u0000investigations prove that the new approach inherits all the advantages of CEM\u0000with greatly improved computing efficiency.","PeriodicalId":501309,"journal":{"name":"arXiv - CS - Computational Engineering, Finance, and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141771827","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