现代电子技术(英文) Pub Date : 2023-04-21 DOI: 10.26549/met.v7i1.11641

Xu Dong, J. Dong, Hui Wang, Zong Yan

引用次数: 0

Application of PCA Numalgorithm in Remote Sensing Image Processing PCA数字算法在遥感图像处理中的应用

现代电子技术(英文) Pub Date : 2023-04-21 DOI: 10.26549/met.v7i1.12317

Hong Dai

引用次数: 0

Dynamic Prediction Method for Valuable Spare Parts Demand in Weaponry Equipment Based on Data Perception 基于数据感知的武器装备有价备件需求动态预测方法

现代电子技术(英文) Pub Date : 2023-04-21 DOI: 10.26549/met.v7i1.11941

Weiyi Wu, Yunxian Jia, Yangyang Zhang, B. Liu

引用次数: 0

Study of Wireless Sensor Network Based on Optical Communication: Research Challenges and Current Results 基于光通信的无线传感器网络研究:研究挑战与现状

现代电子技术(英文) Pub Date : 2022-06-23 DOI: 10.26549/met.v6i1.11372

Xinrui Li, Dandan Li

{"title":"Study of Wireless Sensor Network Based on Optical Communication: Research Challenges and Current Results","authors":"Xinrui Li, Dandan Li","doi":"10.26549/met.v6i1.11372","DOIUrl":"https://doi.org/10.26549/met.v6i1.11372","url":null,"abstract":"With the rapid developments of commercial demands, a majority of advanced researches have been investigated for the applications of underwater wireless sensor (WSN) networks. Recently optical communication has been considered for underwater wireless sensor network. An experimental set-up for testing optical communication underwater has been provided and designed in present papers to maximize the energy coupled from these displacements to the transduction mechanism that converts the mechanical energy into electrical. The true case has been considered by measuring diffuse attenuation coefficients in different seas. One stand out potential optical communication method, Visible Light Communication (VLC) has been talked and several communication methods are compared from many points of view, for example attenuation in salt water. The evaluation of modulation techniques for underwater wireless optical communications has been displayed, and further how the data collection and storage with an underwater WSN is introduced. In this paper current researches for an (UWSN) based on optical communication are studied, in particular the potential VLC method and comparisons of VLC with other optical communication approaches. Underwater challenges would be analyzed by comparing a sort of communication methods, applied in underwater. Future work will be developed at last.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69461654","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

Research of Paraphrasing for Chinese Complex Sentences Based on Templates 基于模板的汉语复句释义研究

现代电子技术(英文) Pub Date : 2022-06-23 DOI: 10.26549/met.v6i1.11421

Zhongjian Wang, Ling Wang

{"title":"Research of Paraphrasing for Chinese Complex Sentences Based on Templates","authors":"Zhongjian Wang, Ling Wang","doi":"10.26549/met.v6i1.11421","DOIUrl":"https://doi.org/10.26549/met.v6i1.11421","url":null,"abstract":"Based on the paraphrasing of Chinese simple sentences, the complex sentence paraphrasing by using templates are studied. Through the classification of complex sentences, syntactic analysis and structural analysis, the proposed methods construct complex sentence paraphrasing templates that the associated words are as the core. The part of speech tagging is used in the calculation of the similarity between the paraphrasing sentences and the paraphrasing template. The joint complex sentence can be divided into parallel relationship, sequence relationship, selection relationship, progressive relationship, and interpretive relationship’s complex sentences. The subordinate complex sentence can be divided into transition relationship, conditional relationship, hypothesis relationship, causal relationship and objective relationship’s complex sentences. Joint complex sentence and subordinate complex sentence are divided to associated words. By using pretreated sentences, the preliminary experiment is carried out to decide the threshold between the paraphrasing sentence and the template. A small scale paraphrase experiment shows the method is availability, acquire the coverage rate of paraphrasing template 40.20% and the paraphrase correct rate 62.61%.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41594576","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

Automatic Sentiment Classification of News Using Machine Learning Methods 使用机器学习方法的新闻自动情感分类

现代电子技术(英文) Pub Date : 2022-06-23 DOI: 10.26549/met.v6i1.11132

Yuhan Wang

引用次数: 1

Research on Handwritten Chinese Character Recognition Based on BP Neural Network 基于BP神经网络的手写体汉字识别研究

现代电子技术(英文) Pub Date : 2022-06-23 DOI: 10.26549/met.v6i1.11359

Z. Ning

{"title":"Research on Handwritten Chinese Character Recognition Based on BP Neural Network","authors":"Z. Ning","doi":"10.26549/met.v6i1.11359","DOIUrl":"https://doi.org/10.26549/met.v6i1.11359","url":null,"abstract":"The application of pattern recognition technology enables us to solve various human-computer interaction problems that were difficult to solve before. Handwritten Chinese character recognition, as a hot research object in image pattern recognition, has many applications in people’s daily life, and more and more scholars are beginning to study off-line handwritten Chinese character recognition. This paper mainly studies the recognition of handwritten Chinese characters by BP (Back Propagation) neural network. Establish a handwritten Chinese character recognition model based on BP neural network, and then verify the accuracy and feasibility of the neural network through GUI (Graphical User Interface) model established by Matlab. This paper mainly includes the following aspects: Firstly, the preprocessing process of handwritten Chinese character recognition in this paper is analyzed. Among them, image preprocessing mainly includes six processes: graying, binarization, smoothing and denoising, character segmentation, histogram equalization and normalization. Secondly, through the comparative selection of feature extraction methods for handwritten Chinese characters, and through the comparative analysis of the results of three different feature extraction methods, the most suitable feature extraction method for this paper is found. Finally, it is the application of BP neural network in handwritten Chinese character recognition. The establishment, training process and parameter selection of BP neural network are described in detail. The simulation software platform chosen in this paper is Matlab, and the sample images are used to train BP neural network to verify the feasibility of Chinese character recognition. Design the GUI interface of human-computer interaction based on Matlab, show the process and results of handwritten Chinese character recognition, and analyze the experimental results.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45299907","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

Japanese-Chinese Machine Translation of Japanese Determiners Based on Templates 基于模板的日语行列式的日中机器翻译

现代电子技术(英文) Pub Date : 2022-06-23 DOI: 10.26549/met.v6i1.11422

Ling Wang, Zhongjian Wang

{"title":"Japanese-Chinese Machine Translation of Japanese Determiners Based on Templates","authors":"Ling Wang, Zhongjian Wang","doi":"10.26549/met.v6i1.11422","DOIUrl":"https://doi.org/10.26549/met.v6i1.11422","url":null,"abstract":"The machine translation of Japanese sentences with determiners, like “shika...nai”, “tyoutto...dakedeha”, “tada...dake” and so on, are more special and regular on sentences structure. The research collects and classifies the Japanese sentences which contain the determiners. The classification is carried out by according to the characteristics of Japanese sentences and translation habit of Chinese sentences. Through further abstraction and simplification, translation templates are extracted by gathering grammar rules information, studying syntax and analysis the collocation mode of sentences. Those determiners express confirmed meaning, and the corresponding translation Chinese sentences have the same characteristic. By analyzing the sentence characteristics with determiners and formalizing the sentences structure, the translation templates are abstracted. By investigating the structure characteristic of original sentences with translation templates, the similarity algorithm was defined. The threshold value of the similarity calculation was obtained by preliminary experiments, and the experiments of Japanese-Chinese translation are carried out by a small corpus. The experimental results for several kinds of Japanese sentences with determiners show the translation accuracy rate is 68.6%, template coverage rate reach 83.3%. At last, through the analysis for the translation errors, following conclusion is drawn: the results of morphological analysis are erroneous, because the error of word segmentation the part of speech tagging also are erroneous, result in the grammar structure cannot match with templates; the original sentences are long and especially complex sentences; the templates are too complicated; the similarity calculation method needs to discuss further, and so on.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42341634","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

Preparation and Performance of CdZnTe Ray Detector CdZnTe射线探测器的制备与性能

现代电子技术(英文) Pub Date : 2022-06-23 DOI: 10.26549/met.v6i1.9507

Jun Jiang

引用次数: 0

Trends of Robot Application——Ethical Response 机器人应用趋势——伦理回应

现代电子技术(英文) Pub Date : 2020-12-14 DOI: 10.26549/met.v4i2.4299

Lunfei Li

引用次数: 0

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