World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering最新文献_第9页

Topological Nodes Generation Using Anomaly Scores of WiFi Signal Strengths 利用WiFi信号强度异常评分生成拓扑节点

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/IJCCE.2017.6.1.29-39

Nosan Kwak, Ltd. Maetan-dong Youngtong-gu Suwon Gyeunggi-do Korea Samsung Electronics Co., Sukjune Yoon, Soon-Yyong Park, Ji-min Kim, Sohee Lee, K. Roh

{"title":"Topological Nodes Generation Using Anomaly Scores of WiFi Signal Strengths","authors":"Nosan Kwak, Ltd. Maetan-dong Youngtong-gu Suwon Gyeunggi-do Korea Samsung Electronics Co., Sukjune Yoon, Soon-Yyong Park, Ji-min Kim, Sohee Lee, K. Roh","doi":"10.17706/IJCCE.2017.6.1.29-39","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.1.29-39","url":null,"abstract":"The essential information for location based service (LBS) is, of course, the location of a mobile robot providing the services. In outdoor environments, GPS is definitely the solution for LBS, however it is difficult to use it in indoor environments due to its weak signal strength. The two main radio-based approaches to the indoor localization are trilateration and fingerprinting, which require either many signal sources or heavy calibration. In this paper, we focus on the fact that the purpose of the localization is to provide services not at the whole locations but at certain locations. For this purpose, we propose a novel topological node generation method using anomaly scores of WiFi signal strengths, enabling to localize the robot under a single WiFi access point. Learning of sequential RSSIs with a hierarchical temporal memory model is able to detect a distinct node. We show the experimental results on node generation and recognition of a node using only one WiFi access point.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89296460","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

Metadata Management and Materialization of Composite Documents in a Digital Library 数字图书馆复合文档的元数据管理与实体化

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/IJCCE.2017.6.2.91-103

A. Ly, N. Spyratos

引用次数: 0

Emotion Analysis Based on Facial Expression Recognition in Virtual Learning Environment 基于虚拟学习环境中面部表情识别的情绪分析

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/IJCCE.2017.6.1.49-56

Yongna Liu, Lirong Wang, Wanping Li

引用次数: 14

Abnormal Behavior Analysis in Office Automation System within Organizations 组织内办公自动化系统异常行为分析

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/IJCCE.2017.6.3.212-220

Yilin Wang, Yun Zhou, Cheng Zhu, Xianqiang Zhu, Weiming Zhang

{"title":"Abnormal Behavior Analysis in Office Automation System within Organizations","authors":"Yilin Wang, Yun Zhou, Cheng Zhu, Xianqiang Zhu, Weiming Zhang","doi":"10.17706/IJCCE.2017.6.3.212-220","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.3.212-220","url":null,"abstract":"Insider threat is a serious and increasing concern for many organizations. The group of individuals who operate within the organization have access to highly confidential and sensitive information, however, if they choose to act against the organization, with their privileged access authority and their extensive knowledge, they are well positioned to cause serious damage. Compared with vast amounts of normal daily operations, malicious behaviors are indeed small probability events, and are easily ignored. Thus, there is a desperate need to explore an effective approach to detect such suspicious behaviors. In order to solve this problem, we propose a two-stage algorithm to detect anomaly through analyzing user behavior based on activity log data collected in a real office automation system. In the first stage, we compare users’ behavioral activities with activities of his/her belonging role, and in the second stage, we compare individual behavioral activities with his/her activities in a window period. By adopting several effective features to describe users’ regular behavioral patterns, the analyst is capable of refining underlying abnormal users and abnormal periods to better support the network security administration.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86546871","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 MIMO-OFDM Adaptive Receiver in Time-Varying Channels 时变信道中一种新型MIMO-OFDM自适应接收机

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/IJCCE.2017.6.3.181-192

Yi-Wei Jhang, Fang-Biau Ueng, Li-Der Jeng, Yu-Kuan Chang, You-Hao Lin

引用次数: 0

Analyzing the Route Cache Timeout Parameter of DSR Protocol in Mobile Ad Hoc Networks 移动Ad Hoc网络中DSR协议的路由缓存超时参数分析

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/IJCCE.2017.6.1.40-48

B. Özyurt, I. Dogru, M. Ali Akcayol

引用次数: 2

Natural Area Coding Based Postcode Scheme 基于自然区域编码的邮政编码方案

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/IJCCE.2017.6.3.161-172

Valentin Rwerekane, Maurice Ndashimye

{"title":"Natural Area Coding Based Postcode Scheme","authors":"Valentin Rwerekane, Maurice Ndashimye","doi":"10.17706/IJCCE.2017.6.3.161-172","DOIUrl":"https://doi.org/10.17706/IJCCE.2017.6.3.161-172","url":null,"abstract":"Traditionally, addresses were used to direct people and helped in social activities; nowadays addresses are used in a wide range of applications, such as automated mail processing, vehicles navigation, urban planning and maintenance, emergency response, statistical analyses, marketing, and others, to ensure necessities induced by new information technologies and facility developments. On top of addresses primary use, postcodes systems were developed to comprehensively provide a variety of public and commercial services. Postcode being an integral part of an addressing system, if well-established, a postcode system brings further social-economic development benefits to a country. This paper aims at designing a postcode based on the Natural Area Coding (NAC). The design focuses on designing a standardized postcode that can fit into any addressing scheme and be used for towns and cities of any shapes from structured cities to slums. Design considerations of a fine-grained postcode (easy for humans, efficient for computerized systems and requiring less or no maintenance over time to improve its efficiency) have proven to be difficult to realize. Therefore, in this paper a new logic is illustrated whereby these considerations are rationally handled while simultaneously allowing the postcode to give a sense of directions and distance. The technique used in this paper can be tailored to a city of any size. As such, a city is divided up into concentric rectangles of which sizes vary from one to three level 3 NAC cells, each NAC cell containing approximately 30×30 plots of 20×50 m2. In this paper, a conversion algorithm is proposed to compute the postcode back and forth to NAC","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90306633","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: 3

On a Characteristic of Data Transmission with Three or More Priority Levels in Bus Network 总线网络中具有三个或更多优先级的数据传输特性研究

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2017-01-01 DOI: 10.17706/ijcce.2017.6.2.137-150

M. Ooki

{"title":"On a Characteristic of Data Transmission with Three or More Priority Levels in Bus Network","authors":"M. Ooki","doi":"10.17706/ijcce.2017.6.2.137-150","DOIUrl":"https://doi.org/10.17706/ijcce.2017.6.2.137-150","url":null,"abstract":"This paper presents a characteristic of data transmission in bus network in which each datum has a priority and the number of priority levels are three or more. In this bus network, each station is connected to a bus through a switching-hub which establishes a link from a sending station to a receiving station. When the receiving station is sending data or receiving data, the link cannot be established and the sending station has to wait a little waiting time (stand-by time). Then, by defining the link probability as a constant, the bus network is analyzed. Taking note of one of the sending stations with r(r≥3) sending buffers for data with priority, in steady state, a balance equation of the probabilities of the number of waiting data at the ready time of sending is expressed. From the equation, for each priority, probabilities of the number of waiting data, mean of the number of waiting data in the sending buffer and mean waiting time which is the time from the arrival time of a datum at the sending buffer to the beginning time of sending the datum are derived. The calculated values of mean waiting time are illustrated and mean waiting times with priority processing are compared with mean waiting time without priority processing. As a result, the influence of the link probability on data transmission with priority processing is clarified.","PeriodicalId":23787,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82659413","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

Study and Analysis of Optical Intersatellite Links 星间光链路的研究与分析

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2016-04-05 DOI: 10.5281/ZENODO.1124588

Boudene Maamar, Xu Mai

引用次数: 5

Effect of Collector Aspect Ratio on the Thermal Performance of Wavy Finned Absorber Solar Air Heater 集热器长径比对波浪翅片吸收太阳能空气加热器热性能的影响

World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering Pub Date : 2016-04-03 DOI: 10.5281/ZENODO.1124371

Abhishek Priyam, P. Chand

引用次数: 7