2021 International Symposium on Computer Technology and Information Science (ISCTIS)最新文献

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Research on the MAX038 Simulation Model for Electromagnetic Inspection MAX038电磁检测仿真模型的研究
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00086
Guo Qing, Hongbo Zhang, Hongzhi Hu, Qin Chang
{"title":"Research on the MAX038 Simulation Model for Electromagnetic Inspection","authors":"Guo Qing, Hongbo Zhang, Hongzhi Hu, Qin Chang","doi":"10.1109/ISCTIS51085.2021.00086","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00086","url":null,"abstract":"The high-frequency signal generator MAX038 is particularly suitable for RF signal sources of electromagnetic nondestructive testing, but the lack of finite element simulation model impedes the application of MAX038 in physical field simulation analysis. In this paper, we study the internal structure and principle of MAX038, divide its equivalent circuit architecture into different function modules, and then create and package its simulation model with modularization method. Based on the MAX038 simulation model, the RF excitation signal generator is designed and fabricated by using MSP430 processor, and an optimized detection algorithm is proposed to verify the simulation model. The test results of the MAX038 model and RF signal generator show that the MAX038 model proposed in this paper matches the real chip performance, it can also meet the requirements of simulation analysis for the parameter coupling relationship between electromagnetic field and defects.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121587524","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 Shadow Detection Method Based on SLICO Superpixel Segmentation 基于SLICO超像素分割的阴影检测方法
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00067
Kun-Peng Lei, Xin-xi Feng, Yu Wang
{"title":"A Shadow Detection Method Based on SLICO Superpixel Segmentation","authors":"Kun-Peng Lei, Xin-xi Feng, Yu Wang","doi":"10.1109/ISCTIS51085.2021.00067","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00067","url":null,"abstract":"This paper proposes a shadow detection algorithm based on SLICO superpixel segmentation to address the issues of single-image shadow detection. Firstly, SLICO superpixels is used to segment the shadow image to generate superpixel blocks to detect the shadow contour. Then proposes a fusion-characteristics-based SVM classifiers, the superpixel blocks are classified and merged to detect the shadow areas. Finally, the proposed algorithm is compared with Otsu threshold method and traditional SVM detection method. The experiment results verified the effectiveness of the proposed algorithm. The detection performances comparison of SSIM and PSNR indicates that the proposed algorithm obtains relative higher performances than the reference algorithms.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122772676","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 BP neural network model for the demand forecasting of road freight transportation system 基于BP神经网络的道路货物运输系统需求预测模型
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00061
Yun Wu, Shuai Wang, Yingying Zhang, Jiangzhou Zhang
{"title":"A BP neural network model for the demand forecasting of road freight transportation system","authors":"Yun Wu, Shuai Wang, Yingying Zhang, Jiangzhou Zhang","doi":"10.1109/ISCTIS51085.2021.00061","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00061","url":null,"abstract":"To address the prediction problem of road freight transport demand, this paper firstly establishes preliminary forecasting indicators, analyses them using grey relational analysis methods and predicts freight volumes by taking advantage of the non-linear mapping of BP neural networks. The prediction results are eventually compared with the exponential smoothing method and the GM(1,1) method. The study find that the GRA-BPNN-based prediction has ideal prediction results, with higher accuracy and more stable prediction.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133174041","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
Missing data filling based on the spectral analysis and the Long Short- Term Memory network 基于谱分析和长短期记忆网络的缺失数据填充
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00049
Jie Wu, N. Li, Yan Zhao
{"title":"Missing data filling based on the spectral analysis and the Long Short- Term Memory network","authors":"Jie Wu, N. Li, Yan Zhao","doi":"10.1109/ISCTIS51085.2021.00049","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00049","url":null,"abstract":"A combined missing data filling approach based on the spectral analysis and the Long Short-Term Memory (LSTM) network is put forward in this paper to solve the data missing problem in wind speed. Firstly, the periodicity of wind speed data is determined by the periodogram and spectral density estimation results. Then two periodicity-related prediction filling strategies named the forward periodic prediction filling and the inverse periodic prediction filling are designed and realized through LSTM networks along with a non-periodicity-related sequence prediction filling strategy called the sequence prediction filling. Finally, the results of the three prediction filling models are combined according to the best weight vector obtained by the parameter optimization algorithm. Error comparison results demonstrate that the proposed approach performs well in wind speed missing data filling.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132732984","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: 2
General Model-Agnostic Transfer Learning for Natural Degradation Image Enhancement 自然退化图像增强的通用模型不可知迁移学习
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00059
Xiangyu Yin, Jun Ma
{"title":"General Model-Agnostic Transfer Learning for Natural Degradation Image Enhancement","authors":"Xiangyu Yin, Jun Ma","doi":"10.1109/ISCTIS51085.2021.00059","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00059","url":null,"abstract":"In order to obtain high-quality images in natural conditions, natural degradation image enhancement has been a research hotspot in recent years. In this paper, we present a transfer learning approach for multiple types of natural degradation image enhancement. We propose to create a common source domain for various natural degradations and perform the transfer learning for every specific natural degradation individually. By reusing the general enhancement model, we can circumvent the scarcity of training dataset and the computation-intensive training process for deep learning methods. In the experiment, we transfer the general model to three target tasks: raining image enhancement, snowing image enhancement and underwater image enhancement. With the finetuning of only 5 epochs, the enhancement models have been able to outperform several state-of-the-art methods that designed for specific task.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129645253","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: 1
Super-resolution algorithm combining SAE dictionary learning and anchored neighborhood regression 结合SAE字典学习和锚定邻域回归的超分辨率算法
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00026
Huang Weiqin, Guo Yijing, Chen Junren
{"title":"Super-resolution algorithm combining SAE dictionary learning and anchored neighborhood regression","authors":"Huang Weiqin, Guo Yijing, Chen Junren","doi":"10.1109/ISCTIS51085.2021.00026","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00026","url":null,"abstract":"To improve the efficiency of the super resolution algorithm based on dictionary learning, a super-resolution algorithm combining sparse autoencoder dictionary learning and anchored neighborhood regression is proposed. The sparse autoencoder with outstanding learning ability is used to learn a dictionary witch has better feature expression ability in the stage of dictionary learning. For the improvement of autoencoder, the mean absolute error principle is taken as the reconstruction error term to improve the accuracy of model error measurement. In the stage of data preprocessing, the whitening technology is used to construct the low redundancy input data to improve the generalization ability of sparse autoencoder dictionary learning model. In the stage of image reconstruction, the dictionary obtained is applied to the super-resolution algorithm based on anchored neighborhood regression to achieve fast real-time reconstruction by reducing the computation of sparse coding. In this study, the proposed super-resolution algorithm combines the advantages of sparse autoencoder model and anchored neighborhood regression, which can not only improve the quality of image reconstruction, but also guarantee the reconstruction speed at the same time. So it has high reconstruction efficiency.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130490715","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
Named entity recognition of legal documents based on cascade model 基于级联模型的法律文件命名实体识别
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00073
Xiaolin Li, Zhuohao Chen, Gang Xu, Bowen Huang
{"title":"Named entity recognition of legal documents based on cascade model","authors":"Xiaolin Li, Zhuohao Chen, Gang Xu, Bowen Huang","doi":"10.1109/ISCTIS51085.2021.00073","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00073","url":null,"abstract":"Aiming at the problems of long legal document entities and the lack of annotated data, a cascade model that integrates the characteristics of characters and words is proposed. The traditional NER is decomposed into two cascaded subtasks: the entity recognition and the attribute recognition. The model obtains the vector representation of text character-level and word-level through BERT and Self-attention, respectively. Then the BiLSTM is used to obtain the internal features of the serialized text. Subsequenly, CRF is used to select the entity's optimal tag sequence and the attributed optimal tag sequence. Finally, these two sequences are spliced to obtain the optimal marker sequence. In order to improve the utilization rate of the data, the label linearization is introduced for the data enchancement. The results show that the method is superior to traditional models, can effectively extract named entities of legal documents, and has the vital practical significance.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130906745","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
3D Real-Scene Model of Oblique Photography Based on Retinex 基于Retinex的倾斜摄影三维实景模型
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00045
Cheng Zhu, Liwen Chen, Wei Lu, Q. Xiao
{"title":"3D Real-Scene Model of Oblique Photography Based on Retinex","authors":"Cheng Zhu, Liwen Chen, Wei Lu, Q. Xiao","doi":"10.1109/ISCTIS51085.2021.00045","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00045","url":null,"abstract":"The traditional 3D modeling adopts the method of manual field measurement data, which meets the accuracy required by production and construction, but the efficiency of data acquisition is too low. In order to improve the overall work efficiency, the UAV oblique photography is used in the 3D modeling. It not only liberates technicians from the hard field work, greatly reduces the field work workload, but also can quickly build 3D real-scene model, shorten the drawing period, reduce the production cost, which has a positive role in promoting the development of geographic information industry. However, in the process of UAV tilt photography, the image effect is often not very ideal due to the influence of bad weather such as uncertain rain or shine and wind and fog, and uneven illumination phenomena such as underexposure, overexposure and shadow appear, which directly affect the quality of the 3D real-scene model in the later stage. In order to eliminate this effect, Retinex method in image enhancement technology is applied to preprocess the oblique photography image to ensure the image quality, which lays a foundation for the quality of the subsequent 3D real-scene model.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"68 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120893535","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
MCSRec: Modeling Cognitive Similarity in Sequential Recommendation with Social Networks MCSRec:基于社会网络的顺序推荐认知相似性建模
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00054
Zhongwang Zhang, Yilei Wang, Xueqin Chen, Jifeng Ye, Yijin Cai, Longjiang Chen
{"title":"MCSRec: Modeling Cognitive Similarity in Sequential Recommendation with Social Networks","authors":"Zhongwang Zhang, Yilei Wang, Xueqin Chen, Jifeng Ye, Yijin Cai, Longjiang Chen","doi":"10.1109/ISCTIS51085.2021.00054","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00054","url":null,"abstract":"Combining user social relationships in sequence recommendation helps model users' potential preferences and improves the performance of the recommendation system. However, recommendation with social networks faces two challenging problems, and has not been well-studied in most existing works. The first is cognitive differences. Even users with similar preferences face the same recommended objects, they will make different choices due to cognitive differences. Therefore, modeling the cognitive similarity of users is crucial. The second is the influence strength of her friends might be different. To solve the above problems, this paper proposes a new deep learning model called MCSRec. Specifically, based on users' long short- term personal preferences, design a memory cognitive module to model the cognitive similarity between users and their friends. Then, after obtaining friends' preferences which are similar to users' cognition, model social influence with a graph attention network. The experimental results on three public data sets prove the effectiveness of our proposed MCSRec model on several competitive baselines, including state-of-the-art models.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123848035","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
Anti-confrontational Domain Data Generation Based on Improved WGAN 基于改进WGAN的抗对抗域数据生成
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00050
Haibo Luo, Xingchi Chen, Jianhu Dong
{"title":"Anti-confrontational Domain Data Generation Based on Improved WGAN","authors":"Haibo Luo, Xingchi Chen, Jianhu Dong","doi":"10.1109/ISCTIS51085.2021.00050","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00050","url":null,"abstract":"The Domain Generate Algorithm (DGA) is used by a large number of botnets to evade detection. At present, the mainstream machine learning detection technology not only lacks the training data with evolutionary value, but also has the security problem that the model input sample is attacked. The Generative Adversarial Network (GAN) suggested by Goodfellow offers the possibility of solving the above problems, and WGAN is a variant of the GAN model implementation [1]. In this paper, an improved method for generating adversarial domain names by improved WGAN character domain name generator is proposed to improve model detection capability and expand effective training set. Experimental results show that this method produces adversarial domain names that are more consistent with human naming than traditional GAN models, adding these training sets with adversarial factors improves the discriminant hit ratio of the model to unknown domain names.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124166137","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
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