This work concerns the development of a fault model of sensor for detecting and isolating sensor, actuator, and various faults in USNs (Ubiquitous Sensor Network). USN are developed to create relationships between humans, objects and computers in various fields. A management research of sensor nodes is very important because the ubiquitous sensor network has the numerous sensor nodes. However, Self-healing technologies are insufficient to restore when an error event occurs in a sensor node in a USN environment. A layered healing architecture for each node layer (3-tier) is needed, because most sensor devices have different capacities in USN. In this paper, we design a fault model and architecture of the sensor and sensor node separately for self-healing in USN. In order to evaluate our approach, we implement prototype of the USN fault management system to evaluate our approach. We compare the resource use of self-healing components in the general distributed computing (wired network) and the USN.
{"title":"Fault Management for Self-Healing in Ubiquitous Sensor Network","authors":"Giljong Yoo, Jinsoo Jung, Eunseok Lee","doi":"10.1109/FGCNS.2008.156","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.156","url":null,"abstract":"This work concerns the development of a fault model of sensor for detecting and isolating sensor, actuator, and various faults in USNs (Ubiquitous Sensor Network). USN are developed to create relationships between humans, objects and computers in various fields. A management research of sensor nodes is very important because the ubiquitous sensor network has the numerous sensor nodes. However, Self-healing technologies are insufficient to restore when an error event occurs in a sensor node in a USN environment. A layered healing architecture for each node layer (3-tier) is needed, because most sensor devices have different capacities in USN. In this paper, we design a fault model and architecture of the sensor and sensor node separately for self-healing in USN. In order to evaluate our approach, we implement prototype of the USN fault management system to evaluate our approach. We compare the resource use of self-healing components in the general distributed computing (wired network) and the USN.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134364256","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}
There is a study in progress that extracts an index using the structure and contents of a document for achieving more effective index extraction and index weighting. Most studies calculate the relevance of the context and determine the index according to the weights of each tag. But, these previous studies are determining the relevance according to simple parameters from general theory, rather than proving relevance via objective experiments. This study classifies a thesis in which the main paragraphs were converted into XML, via XML structural information, and proposes a technique that determines the weight of the final index while updating the weight of the index according to the weight of terms, subsequent to calculating the weight for the term in each paragraph.
{"title":"Index Weighting Based on the Weight of the Index of Each Tag","authors":"Hyejin Jeong","doi":"10.1109/FGCNS.2008.78","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.78","url":null,"abstract":"There is a study in progress that extracts an index using the structure and contents of a document for achieving more effective index extraction and index weighting. Most studies calculate the relevance of the context and determine the index according to the weights of each tag. But, these previous studies are determining the relevance according to simple parameters from general theory, rather than proving relevance via objective experiments. This study classifies a thesis in which the main paragraphs were converted into XML, via XML structural information, and proposes a technique that determines the weight of the final index while updating the weight of the index according to the weight of terms, subsequent to calculating the weight for the term in each paragraph.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132289467","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}
This paper presents an image denoising scheme based on the correlation of the wavelet coefficients. It is well settled that significant features in images evolve with high magnitude across wavelet scales, while noise decays rapidly. Multiplying the adjacent wavelet scales sharpens the edges structures while weakening noise. This property is exploited by applying threshold to the scale correlation to identify the important features. Non-decimated wavelet transform is used here. Experiments shows that proposed method gives better results compared to other related works.
{"title":"Non-Decimated Wavelet Shrinkage Algorithm for Image Denoising Based on Inter-Scale Correlation","authors":"V. Vidya","doi":"10.1109/FGCNS.2008.19","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.19","url":null,"abstract":"This paper presents an image denoising scheme based on the correlation of the wavelet coefficients. It is well settled that significant features in images evolve with high magnitude across wavelet scales, while noise decays rapidly. Multiplying the adjacent wavelet scales sharpens the edges structures while weakening noise. This property is exploited by applying threshold to the scale correlation to identify the important features. Non-decimated wavelet transform is used here. Experiments shows that proposed method gives better results compared to other related works.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124854452","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}
Because of the complex Web structure, most approaches of focused crawling employ a local search algorithm, which will only search pages in a sub-graph of the Web. And the multi-topic feature of Web pages makes it difficult to determine the relevance of a Web page to a given topic. Towards those two issues, in this paper we present a new hybrid approach to focused crawling, which is based on meta-search and VIPS (VIsion based Page Segmentation) algorithm. We use meta-search to achieve a wider crawling range than traditional local search algorithm. Besides, in order to obtain better recall and precision, we use VIPS-based algorithm for the relevance computation of a Web page, which first partitions a Web page into a set of blocks that reflect the semantic structure of the page. The system architecture of hybrid focused crawler is discussed after a short review on related work, and then we present the framework of the hybrid focused crawling approach.
{"title":"A Framework of a Hybrid Focused Web Crawler","authors":"Yixue Sun, Peiquan Jin, Lihua Yue","doi":"10.1109/FGCNS.2008.73","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.73","url":null,"abstract":"Because of the complex Web structure, most approaches of focused crawling employ a local search algorithm, which will only search pages in a sub-graph of the Web. And the multi-topic feature of Web pages makes it difficult to determine the relevance of a Web page to a given topic. Towards those two issues, in this paper we present a new hybrid approach to focused crawling, which is based on meta-search and VIPS (VIsion based Page Segmentation) algorithm. We use meta-search to achieve a wider crawling range than traditional local search algorithm. Besides, in order to obtain better recall and precision, we use VIPS-based algorithm for the relevance computation of a Web page, which first partitions a Web page into a set of blocks that reflect the semantic structure of the page. The system architecture of hybrid focused crawler is discussed after a short review on related work, and then we present the framework of the hybrid focused crawling approach.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121750881","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}
Jiajia Miao, Zhuxi Zhang, Zhijian Yuan, Yan Jia, Quanyuan Wu
Events detection is one of the most important issues in data stream processing. Outlier event, change event and burst event are three typical types of event that need to be identified. In this paper, we explore the relationship of these three types of events, and then present a unified framework, named DSED (distributed stream events detection), to handle all of them simultaneously. Rather than collecting all the data in one coordinator node for centralized processing, we also use pre-computing to reduce the communication cost for events detection. Experiment results verify the efficiency of DSED, and also show that our proposed framework can dramatically reduce the communication cost with little false position.
{"title":"Detecting Stream Events in Distributed Streams","authors":"Jiajia Miao, Zhuxi Zhang, Zhijian Yuan, Yan Jia, Quanyuan Wu","doi":"10.1109/FGCNS.2008.153","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.153","url":null,"abstract":"Events detection is one of the most important issues in data stream processing. Outlier event, change event and burst event are three typical types of event that need to be identified. In this paper, we explore the relationship of these three types of events, and then present a unified framework, named DSED (distributed stream events detection), to handle all of them simultaneously. Rather than collecting all the data in one coordinator node for centralized processing, we also use pre-computing to reduce the communication cost for events detection. Experiment results verify the efficiency of DSED, and also show that our proposed framework can dramatically reduce the communication cost with little false position.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127461903","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}
In recent years volumes of scientific data and of scientific databases have increased tremendously. Distributing a database across multiple sites is one possible solution to the problem of managing growing data. We address some practical aspects of distributing a large scientific database - the Sloan Digital Sky Survey (SDSS) database. As a preliminary, we also describe how we acquired the SDSS data and set up a mirror site. The architecture of our grid-based distributed database system is presented.
{"title":"Experiences Acquiring and Distributing a Large Scientific Database","authors":"H. Xiang","doi":"10.1109/FGCNS.2008.69","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.69","url":null,"abstract":"In recent years volumes of scientific data and of scientific databases have increased tremendously. Distributing a database across multiple sites is one possible solution to the problem of managing growing data. We address some practical aspects of distributing a large scientific database - the Sloan Digital Sky Survey (SDSS) database. As a preliminary, we also describe how we acquired the SDSS data and set up a mirror site. The architecture of our grid-based distributed database system is presented.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127823681","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}
This paper describes preliminary results from using reactive control architecture, known as CAPSC (Control Architecture for Poor Strip Cutting), which is designed for a gas cutting robot in Gwangyang steelworks, South Korea. This gas cutting mobile robot, called APSCR (Autonomous Poor Strip Cutting Robot) is designed to identify the poor strips, move an initial cutting position, and start to cut over 60 m long poor strip every 9 m by using a gas cutting- torch. Since its working environment is extremely complex to robot's functionalities and furthermore robot must deal with explosive tanks, APSCR requires more appropriate control architecture in order to provide the following criterions; safety and simplicity. One of the popular control architectures successfully applied to the service mobile robots, reactive control architecture, is employed as primary control such as navigation, obstacle detection, cutting and so on. Besides, walkthrough procedure for safety is implemented to supervise all possible risks to workers and robot for itself. The experimental results are provided to prove a reliability of the proposed architecture.
{"title":"Control Architecture Design for an Gas Cutting Robot","authors":"kiSung yoo, HwangRyol Ryu, Chintae Choi","doi":"10.1109/FGCNS.2008.130","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.130","url":null,"abstract":"This paper describes preliminary results from using reactive control architecture, known as CAPSC (Control Architecture for Poor Strip Cutting), which is designed for a gas cutting robot in Gwangyang steelworks, South Korea. This gas cutting mobile robot, called APSCR (Autonomous Poor Strip Cutting Robot) is designed to identify the poor strips, move an initial cutting position, and start to cut over 60 m long poor strip every 9 m by using a gas cutting- torch. Since its working environment is extremely complex to robot's functionalities and furthermore robot must deal with explosive tanks, APSCR requires more appropriate control architecture in order to provide the following criterions; safety and simplicity. One of the popular control architectures successfully applied to the service mobile robots, reactive control architecture, is employed as primary control such as navigation, obstacle detection, cutting and so on. Besides, walkthrough procedure for safety is implemented to supervise all possible risks to workers and robot for itself. The experimental results are provided to prove a reliability of the proposed architecture.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121328119","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}
There is a gap between the theoretical results of regularization theory and practical suitability of regularization-derived networks (RN). On the other hand, radial basis function networks (RBF) that can be seen as a special case of regularization networks, have a rich selection of learning algorithms. In this work we study a relationship between RN and RBF, and show that theoretical estimates for RN hold for a concrete RBF applied on real-world data.
{"title":"Supervised Learning Errors by Radial Basis Function Neural Networks and Regularization Networks","authors":"Roman Neruda, P. Vidnerová","doi":"10.1109/FGCNS.2008.57","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.57","url":null,"abstract":"There is a gap between the theoretical results of regularization theory and practical suitability of regularization-derived networks (RN). On the other hand, radial basis function networks (RBF) that can be seen as a special case of regularization networks, have a rich selection of learning algorithms. In this work we study a relationship between RN and RBF, and show that theoretical estimates for RN hold for a concrete RBF applied on real-world data.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126657061","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}
This paper analyzes the performance of a proposed transmitted-reference (TR) UWB radar system for vehicles. To improve the detection performance of the previous TR-UWB system, the amplitude of a reference pulse can be changed to order to increase the energy-to-noise ratio. Finally, the characteristics of the proposed TR-UWB system are evaluated by simulation. In the AWGN channel, simulation results show that the detection probability of the proposed TR-UWB system with a scaling factor of 2, 10 is an improvement of approximately 3, 6dB, respectively, over the previous TR-UWB system . In the IEEE 802.15.4a Outdoor LOS channel, the detection probability of the proposed TR-UWB system, with a scaling factor of 10, is an improvement over the previous one by approximately 10dB.
{"title":"Improved Detection Performance of a Transmitted-Reference UWB Radar System with Unequaled Amplitude Pulse for Vehicles","authors":"Sangdong Kim, Jong-hun Lee","doi":"10.1109/FGCNS.2008.38","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.38","url":null,"abstract":"This paper analyzes the performance of a proposed transmitted-reference (TR) UWB radar system for vehicles. To improve the detection performance of the previous TR-UWB system, the amplitude of a reference pulse can be changed to order to increase the energy-to-noise ratio. Finally, the characteristics of the proposed TR-UWB system are evaluated by simulation. In the AWGN channel, simulation results show that the detection probability of the proposed TR-UWB system with a scaling factor of 2, 10 is an improvement of approximately 3, 6dB, respectively, over the previous TR-UWB system . In the IEEE 802.15.4a Outdoor LOS channel, the detection probability of the proposed TR-UWB system, with a scaling factor of 10, is an improvement over the previous one by approximately 10dB.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115763076","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}
In this short paper, we reviewed the possibility of concurrency in a user interface when the client system includes more than one remote service operation. We proposed a concurrency model between server operations, and applied the proposed model to XForms pages. We presented a concurrency control scenario for a Web page.
{"title":"User Interface Concurrency in Web Service Client Systems","authors":"Eunjung Lee","doi":"10.1109/FGCNS.2008.155","DOIUrl":"https://doi.org/10.1109/FGCNS.2008.155","url":null,"abstract":"In this short paper, we reviewed the possibility of concurrency in a user interface when the client system includes more than one remote service operation. We proposed a concurrency model between server operations, and applied the proposed model to XForms pages. We presented a concurrency control scenario for a Web page.","PeriodicalId":370780,"journal":{"name":"2008 Second International Conference on Future Generation Communication and Networking Symposia","volume":"242 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114162241","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}
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