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2011 IEEE Symposium on Computers & Informatics最新文献

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Unbiased plain gradient adaptive IIR notch filter for echo cancellation 用于回波抵消的无偏平梯度自适应IIR陷波滤波器
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5958967
S. Dhanawan, A. Charoenphol, C. Benjangkaprasert
{"title":"Unbiased plain gradient adaptive IIR notch filter for echo cancellation","authors":"S. Dhanawan, A. Charoenphol, C. Benjangkaprasert","doi":"10.1109/ISCI.2011.5958967","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958967","url":null,"abstract":"An adaptive echo canceller based on adaptive IIR notch filter with unbiased plain gradient algorithm is proposed, for the echo cancellation in telephone network. The unbiased plain gradient algorithm employs the bias removal techniques to remove the bias existing in the estimated parameter, resulting in obtaining good estimate of parameter for the echo canceller. Simulation results show that the proposed canceller outperforms the canceller with the classical LMS algorithm in terms of echo return loss enhancement (ERLE).","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125479152","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: 5
Cache balancing with proportionate cutting strategy 采用比例切割策略的缓存平衡
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5958971
Mohd Rohaizat Abdul Wahab, Mohd Yunus Sharum, M. T. Abdullah, Mat Rofa Bin Ismail
{"title":"Cache balancing with proportionate cutting strategy","authors":"Mohd Rohaizat Abdul Wahab, Mohd Yunus Sharum, M. T. Abdullah, Mat Rofa Bin Ismail","doi":"10.1109/ISCI.2011.5958971","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958971","url":null,"abstract":"Caching mechanism had been widely used in many applications particularly in CPU optimization, internet application, data structure etc. Our research in text processing reveals that caching mechanism is also applicable to solve performance problem of text analyzers. In this paper we describe the strategy called ‘proportionate cutting’ for balancing (maintaining) limited size cache. Our experiment shows that by proportionate cutting at 0.5 threshold's value gives good performance to the cache. This actually allows of using limited cache in text processing with high frequency words.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134520706","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
An unsupervised center sentence-based clustering approach for rule-based question answering 基于规则问答的无监督中心句子聚类方法
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5958896
Shen Song, Y. Cheah
{"title":"An unsupervised center sentence-based clustering approach for rule-based question answering","authors":"Shen Song, Y. Cheah","doi":"10.1109/ISCI.2011.5958896","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958896","url":null,"abstract":"Question answering (QA) systems have widely employed clustering methods to improve efficiency. However, QA systems with unsupervised automatic statistical processing do not seem to achieve higher accuracies than other approaches. Therefore, with the motivation of obtaining optimal accuracy of retrieved answers under unsupervised automatic processing of sentences, we introduce a syntactic sequence clustering method for answer matching in rule-based QA. Our clustering method called CEnter SEntence-baseD (CESED) Clustering is able to achieve accuracies as high as 84.62% for WHERE-type questions.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131743541","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
Automatic Arabic digit speech recognition and formant analysis for voicing disordered people 语音障碍患者的阿拉伯数字语音自动识别和共振分析
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5959001
G. Muhammad, Khalid Almalki, Tamer A. Mesallam, M. Farahat, M. Alsulaiman
{"title":"Automatic Arabic digit speech recognition and formant analysis for voicing disordered people","authors":"G. Muhammad, Khalid Almalki, Tamer A. Mesallam, M. Farahat, M. Alsulaiman","doi":"10.1109/ISCI.2011.5959001","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5959001","url":null,"abstract":"In this paper, analysis of speech from voice disordered people is performed from automatic speech recognition (ASR) point of view. Six different types of voicing disorder (pathological voice) are analyzed to show the difficulty of automatically recognizing their corresponding speech. As a case study, Arabic spoken digits are taken as input. The distribution of first four formants of vowel /a/ is extracted to show a significant deviation of formants from the normal speech to disordered speech. Experiment result reveals that current ASR technique is far from reliable performance in case of pathological speech, and thereby we need attention to this.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133864522","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: 16
Multi hop cluster head multicast protocol 多跳簇头组播协议
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5959022
M. Ezani, S. Haseeb, M. Abdullah
{"title":"Multi hop cluster head multicast protocol","authors":"M. Ezani, S. Haseeb, M. Abdullah","doi":"10.1109/ISCI.2011.5959022","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5959022","url":null,"abstract":"Multicast has been identified as the next generation multimedia transmission protocol for the Internet. With an increasing growth of WiFi enabled mobile devices, WiFi multicasting is rapidly becoming a necessity. Wireless networks do not efficiently support multicast, so there have been proposals to convert multicast to unicast for efficient and reliable delivery. This process is not robust enough to support multiple clients. This paper proposes a cluster head based mechanism to distribute cascaded multicast contents to the wireless clients. The paper further evaluates the performance of a cluster head mechanism against the standard mechanism to deduce robustness related conclusions.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134084740","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
Cascade multi-level converter based DVR and D-STATCOM for voltage sag and swell reduction 基于DVR和D-STATCOM的级联多级变换器，用于电压骤降和膨胀抑制
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5958947
B. S. Mohammed, K. S. R. Rao, N. Perumal
{"title":"Cascade multi-level converter based DVR and D-STATCOM for voltage sag and swell reduction","authors":"B. S. Mohammed, K. S. R. Rao, N. Perumal","doi":"10.1109/ISCI.2011.5958947","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958947","url":null,"abstract":"This paper presents the modeling and simulation of three and seven-level cascade multilevel converter (CMC) based dynamic voltage restorer (DVR) and distribution static compensator (D-STATCOM), aimed at correcting the supply voltage sag/swell and interruption in low voltage distribution networks. The proposed design models of CMC based DVR and D-STATCOM are expected to be most powerful solutions to minimize supply voltage disturbances of the sensitive loads. The proposed models of DVR and D-STATCOM together with the controllers are simulated by using electromagnetic transient simulation program (PSCAD/ EMTDC) and the results are presented to assess the performance of each device.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134171604","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: 5
Fair and reliable multicast routing for wireless mesh networks 无线网状网络公平可靠的组播路由
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5958985
N. Razavi, M. Meybodi
{"title":"Fair and reliable multicast routing for wireless mesh networks","authors":"N. Razavi, M. Meybodi","doi":"10.1109/ISCI.2011.5958985","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958985","url":null,"abstract":"Multicast is a fundamental routing service in wireless mesh networks (WMNs) due to its many potential applications such as video conferencing, online games, and webcast. Recently, researchers proposed using link-quality-based routing metrics for finding high-throughput paths for multicast routing. However, the performance of such link-quality-based multicast routing is still limited by severe unfairness. Two major artifacts that exist in WMNs are fading which leads to low quality links, and interference which leads to unfair channel allocation in the 802.11 MAC protocol. These artifacts cause the multicast application to behave unfairly with respect to the performance achieved by the multicast receivers. In some applications such as electronic test, competitions and etc. in addition to need for establishing the fairness among the members of the multicast group, it is need to reliable routing with 100% packet delivery ratio (PDR). one of proposed method for increasing PDR is Automatic Repeat Request(ARQ). Previously, numerous multicast protocols based on ARQ have been proposed to improve the packet delivery ratio. Therefore, these ARQ-based protocols can lead to excessive control overhead and drastically reduced throughput. Another technique for increasing PDR is Forward Error Correction (FEC) this method unlike the ARQ prevents of forward control packets and decreases overhead network partly. In this paper, we present methods that in addition of the fairness improvement between the members of multicast group, increase PDR. two methods ARQ-based and FEC-based present in this paper, will be compared the gained fairness and PDR by 802.11.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132892866","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
Capacity and resource reservation in Broadband Internet 宽带互联网的容量与资源预留
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5959011
Raenu Kolandaisamy, R. M. Noor
{"title":"Capacity and resource reservation in Broadband Internet","authors":"Raenu Kolandaisamy, R. M. Noor","doi":"10.1109/ISCI.2011.5959011","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5959011","url":null,"abstract":"The aim of this paper is to introduce a model to providing Internet service charging according to a capacity and usage based charging. A charging model is introduced according to the user interests and preferences. The model provides resource optimization to the mobile network through a capacity and resource parameters where it generates a cost-effective method to optimize the resources. Experiments are conducted using a network simulator to evaluate the model and analyze the results. The results will be useful for Telecommunication Networks and accounting policy planning for the Broadband Internet Charging Quality of Service.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132977518","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
Neural networks with NARX structure for material lifetime assessment application 基于NARX结构的神经网络在材料寿命评估中的应用
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5958926
M. I. P. Hidayat, P. S. Yusoff, W. Berata
{"title":"Neural networks with NARX structure for material lifetime assessment application","authors":"M. I. P. Hidayat, P. S. Yusoff, W. Berata","doi":"10.1109/ISCI.2011.5958926","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958926","url":null,"abstract":"In the present paper, neural networks (NN) with non-linear auto-regressive exogenous inputs (NARX) structure is developed and further applied for material lifetime assessment application. Rational of the use of the NARX structure in the application was emphasized and linked to the concept of constant life diagram (CLD), the well known concept in fatigue of material analysis and design. Fatigue life assessment was then performed and realized as one-step ahead prediction with respect to each stress level corresponding to stress ratio values arranged in such a way that transition took place from a fatigue region to another one in the CLD. As a result, material lifetime assessment can be fashioned for a wide spectrum of loading in an efficient manner. The simulation results for different materials and loading situations are presented and discussed.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"54 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113933572","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: 6
An architecture for real time television audience measurement 一种实时电视观众测量体系结构
2011 IEEE Symposium on Computers & Informatics Pub Date : 2011-03-20 DOI: 10.1109/ISCI.2011.5958986
D. Mukherjee, T. Chattopadhyay, S. Bhattacharya, Avik Ghose, P. Misra
{"title":"An architecture for real time television audience measurement","authors":"D. Mukherjee, T. Chattopadhyay, S. Bhattacharya, Avik Ghose, P. Misra","doi":"10.1109/ISCI.2011.5958986","DOIUrl":"https://doi.org/10.1109/ISCI.2011.5958986","url":null,"abstract":"Currently, audience measurement reports of television programs are only available after a significant period of time, for example as a daily report. This paper proposes an architecture for real time measurement of television audience. Real time measurement can give channel owners and advertisers important information that can positively impact their business. We show that television viewership can be captured by set top box devices which detect the channel logo and transmit the viewership data to a server over internet. The server processes the viewership data and displays it in real time on a web-based dashboard. In addition, it has facility to display charts of hourly and location-wise viewership trends and online TRP (Television Rating Points) reports. The server infrastructure consists of in-memory database, reporting and charting libraries and J2EE based application server.","PeriodicalId":166647,"journal":{"name":"2011 IEEE Symposium on Computers & Informatics","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123241068","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: 5
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