Chenglin Yu, Ming Zhu, Hongyuan Zhang, Ke Liu, YongQiang Liu, He Zhou, Qian Yang
{"title":"Modeling of air quality prediction for PM2.5 concentration in Chengdu area based on measured data","authors":"Chenglin Yu, Ming Zhu, Hongyuan Zhang, Ke Liu, YongQiang Liu, He Zhou, Qian Yang","doi":"10.1109/CACML55074.2022.00097","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00097","url":null,"abstract":"Air quality, especially the concentration of PM2.5, has attracted widespread attention as it affects people's health and may cause health conditions such as allergies, coughs and lung diseases. Chengdu is located in the Sichuan Basin. The unique geographical environment and climatic conditions make Chengdu's PM2.5 changes have its own characteristics. Based on the measured data, this paper proposed a prediction model for the changes of PM2.5 in Chengdu. Specifically, using the correlation analysis between air composition and climate factors, a novel predictive model structure was constructed. Then, based on the historical measured data of air quality in Chengdu area, the parameters of the prediction model were identified using optimization algorithms. Finally, the comparison between the predicted value given by the established prediction model and the measured value of PM2.5 verified the effectiveness of the prediction model.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129350209","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}
{"title":"Using Big Data and Empirical Analysis to Optimize The Decision-Making of Smart City Tourism Logistics Service System","authors":"Chuling Chen, Qin Xue","doi":"10.1109/CACML55074.2022.00140","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00140","url":null,"abstract":"As an emerging service industry, tourism logistics can affect the response of the city's major business operators. Tourism cities can improve logistics services through system optimization, so as to achieve operator satisfaction. This research uses urban big data, through data collection, questionnaire survey, empirical analysis using SPSS and Amos software, etc., to explore the components of tourism logistics service quality and its relationship with the satisfaction of tourism destination operators. The results show that tourism logistics service quality and its dimensions have a positive impact on the satisfaction of tourism destination operators, and consumer emotion and consumer cognition play a partial mediating role in the impact of tourism logistics service quality on operator satisfaction.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117337068","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}
{"title":"Approximating Permutations with Neural Network Components for Travelling Photographer Problem","authors":"C. Sin","doi":"10.1109/CACML55074.2022.00036","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00036","url":null,"abstract":"Most of current inference techniques rely upon Bayesian inference on Probabilistic Graphical Models of observations, and does prediction and classification on observations rather well. Event understanding of machines with observation inputs needs to deal with understanding of the relationship between sets of observations, and thus there is a crucial need to build models and come up with effective data structures to accumulate and organize relationships between observations. Given a set of states probabilisitcally-related with observations, this paper attempts to fit a permutation of states to a sequence of observation tokens (The Travelling Photographer Problem). We have devised a machine learning inspired architecture for randomized approximation of state permutation, facilitating parallelization of heuristic search of permutations. Our algorithm is able to solve The Travelling Photographer Problem with very small error. We demonstrate that by mimicking components of machine learning such as normalization, dropout, lambda layer with randomized algorithm, we are able to devise an architecture which solves TPP, a permutation NP-Hard problem. Other than TPP, we are also able to provide a 2-Local improvement heuristic for the Travelling Salesman Problem (TSP) with similar ideas.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129990087","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}
{"title":"An Electronic Contract Management System Based on Blockchain A case study of technology framework with improved algorithms","authors":"Sheng Guo","doi":"10.1109/CACML55074.2022.00027","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00027","url":null,"abstract":"Contract management is the core of management business that implements enterprise risk management and internal control. The quality of contract management directly affects the success or failure of the company's operations. However, the contract approval process of manual management is not clear: the level of information utilization is not high, resulting in low business processing efficiency with wasting huge man-power and material resources. Hence, many companies have been working on finding a simple and practical software to manage contracts. The article advances an electronic contract management software. The existing electronic contract system is not secure enough in encryption because of the shortcoming of easily forgetting and pretending. The new system adds a private key login through a coin-free open chain technology which is used in hospital, government, military, university and other special scenes, achieved perfect security guarantee. This paper discusses several crucial mechanisms implemented for the goals of designing the system, and gives out relevant methods and process of the implementation. Guided by system engineering theory, this thesis also discusses the modeling and optimization problems of consensus mechanism. The article finally makes analysis on the research process and results, discusses the advantages and prospects of the technology, and points out problems remaining to be solved.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131179230","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}
{"title":"The research of the optimized solutions to Raft consensus algorithm based on a weighted PageRank algorithm","authors":"Yu-shi Wu, Yuansai Wu, Yiran Liu, Tingjun Shi","doi":"10.1109/CACML55074.2022.00135","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00135","url":null,"abstract":"To tackle the problem that the Raft consensus algorithm in blockchain has low node activity and cannot prevent malicious nodes, and thus cannot be well applied to the federated chain, a Raft consensus algorithm based on node activity and credit mechanism is proposed. First of all, through the weighted PageRank algorithm, different PR values are assigned according to the historical activity of different nodes, and then a credit mechanism is introduced to improve the PR values, giving punishment to malicious nodes and reward to normal nodes, so that each node can get the final weight value WV. Through simulation experiments, the optimized Raft consensus algorithm can better resist malicious nodes and has higher throughput and lower consensus latency than the mainstream PBFT algorithm in the federated chain","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115828684","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}
{"title":"Bayesian Optimization Based on Pseudo Labels","authors":"Waner Chen, Zhongwei Wu, Jiewen Xu, Yuehai Wang","doi":"10.1109/CACML55074.2022.00043","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00043","url":null,"abstract":"The performance of a machine learning or deep learning algorithm is heavily influenced by its hyperparameters. The selection of the hyperparameters is of great significance. To automatically find a superior-performing set of hyperparameters, Bayesian optimization is a common and effective hyperparameter optimization method. And an early stopping strategy is usually employed in the optimization algorithm to improve efficiency. The early stopped trials cannot run to the end, so their final performance metrics are unavailable. Therefore, the existing Bayesian optimization algorithms fail to use the trials terminated early as samples for modeling. This may result in less information participating in the modeling, which leads to high model uncertainty. In this paper, we propose Bayesian optimization based on pseudo labels (BOPL). We apply the extrapolation of learning curves as the early stopping strategy and the pseudo labels obtainment method. We use the pseudo labels of all trials to model the surrogate model in Bayesian optimization, thereby avoiding the waste of information contained in the early stopped trials. Experiments on the ResNet-18 on the CIFAR-100 dataset show that the proposed BOPL consistently outperforms vanilla Bayesian and Bayesian with early stopping. It proves the effectiveness of the proposed method, which finds better-performing hyperparameters at a faster rate. The proposed method is versatile, conceptually simple, and easy to implement.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121270671","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}
Wen Wang, Tian Qingguo, Wang Fengbin, Fan Yesen, Zheng Shikun, Zhang Wenhui
{"title":"A Multi-Objective Topology Optimization Method Used in Simultaneous Constraints of Natural Frequency and Static Stiffness","authors":"Wen Wang, Tian Qingguo, Wang Fengbin, Fan Yesen, Zheng Shikun, Zhang Wenhui","doi":"10.1109/CACML55074.2022.00010","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00010","url":null,"abstract":"A multi-objective topology optimization method, based on the classical 99-line topology optimization program and 169-line 3d topology optimization program is proposed. Two-dimensional MBB beam and three-dimensional cantilever beam are optimized, the solution of the first order natural frequency and static stiffness under the constraint of the same time is given. This method can not only satisfy the strict weight requirement of aerospace products, but also avoid the resonance near the working frequency under the condition of satisfying the static stiffness constraint.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114569555","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}
{"title":"Research on The Development of Commercial Digital Economy Based on Information Driven","authors":"Rong Zhang, Fan Zhang","doi":"10.1109/CACML55074.2022.00123","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00123","url":null,"abstract":"With the help of the “information technology and business” model, this paper summarizes and innovates the information kinetic energy theory by using the scientific experiment of information energy and relevant professional technology theory. According to the three-tier technical logic of the new generation of information technology, this paper solves the new kinetic energy logic of traditional business economy and reading the information kinetic energy driving the development of commercial digital economy from three levels.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129439331","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}
{"title":"SE-VPR: Semantic Enhanced VPR Approach for Visual Localization","authors":"Haoyuan Pei, Ji-kai Wang, Zonghai Chen","doi":"10.1109/CACML55074.2022.00131","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00131","url":null,"abstract":"Visual Place Recognition (VPR) is a significant task for robotics and autonomous system. However, existing VPR methods ignored the high-level semantic scene information and performed poorly in the symmetrical scene. This paper introduces SE-VPR, which encodes the relative geometric relationship among semantic regions into image global descriptor to overcome the confusion in the symmetrical scene and improve the recall of the coarse localization step of the hierarchical localization paradigm. The proposed VPR algorithm is evaluated and analyzed on the real dataset to verify its effectiveness and superiority. Finally, the dataset used in the experiment is disclosed, which can be used to evaluate the localization performance of the VPR algorithm and hierarchical localization algorithm in complex scenes such as symmetrical and repetitive structures.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131040074","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}
Hui Yuan, Yuan Xu, Shaoqiang Han, Meng Sun, Nan Ma, Zhang Hao, Maohui Liu
{"title":"Application of Improved Entropy-Weight TOPSIS Model Based on Gray Correlation Method (EWTG) to River Outfall Water Quality Evaluation","authors":"Hui Yuan, Yuan Xu, Shaoqiang Han, Meng Sun, Nan Ma, Zhang Hao, Maohui Liu","doi":"10.1109/CACML55074.2022.00034","DOIUrl":"https://doi.org/10.1109/CACML55074.2022.00034","url":null,"abstract":"River outfall water quality evaluation is an important issue for the local government in water environmental protection and management decision. The entropy-weight TOPSIS model was redesigned basing on grey correlation method (EWTG) in this paper and make a water quality evaluation for 22 river outfalls with 4 monitoring indicators of Duliujian River in Tianjin. The informative weighting was introduced to reduce errors caused of subjective weighting. Then the grey relativity of ideal distances solution and non-ideal distances solution distance and various index was calculated. Finally, the water quality was evaluated the by the relative closeness. Comprehensive closeness degree and geometric similarity relation were comprehensively considered in this model. By comparing entropy-weight TOPSIS model and comprehensive water quality index method, this model with good reliability and stability could be used to river outfalls water environment quality. Evaluating river outfalls water quality by this model to offer a technological support for environmental remediation.","PeriodicalId":137505,"journal":{"name":"2022 Asia Conference on Algorithms, Computing and Machine Learning (CACML)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125433731","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}