Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579379
A.A. Choudhury, A. Rahman, M.M. Rahman, M. Hasan, C.M.M. Wahid
The term dasiapeer-to-peerpsila (P2P) refers to a class of systems and applications that employ distributed resources to perform a critical function in a decentralized manner. We have successfully implemented a pure P2P system, dasiaPAFSpsila (peer-to-peer application for file sharing) that is fully decentralized in its manner, for sharing files over the Internet. We present all the necessary operations that we have implemented for our system and discuss the scalability of our system. We also propose a model in this paper that can be used to include NAT within our system.
{"title":"PAFS: A structured & scalable p2p file sharing system over the internet","authors":"A.A. Choudhury, A. Rahman, M.M. Rahman, M. Hasan, C.M.M. Wahid","doi":"10.1109/ICCITECHN.2007.4579379","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579379","url":null,"abstract":"The term dasiapeer-to-peerpsila (P2P) refers to a class of systems and applications that employ distributed resources to perform a critical function in a decentralized manner. We have successfully implemented a pure P2P system, dasiaPAFSpsila (peer-to-peer application for file sharing) that is fully decentralized in its manner, for sharing files over the Internet. We present all the necessary operations that we have implemented for our system and discuss the scalability of our system. We also propose a model in this paper that can be used to include NAT within our system.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116486061","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}
Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579440
A. Azad, J. Kamruzzaman
The increasing concentration of data traffic on sensors towards the base station in multi hop and escalating rate of energy drainage due to higher transmission distance at sensors towards the boundary in single hop communication cause an extremely non-uniform energy usage. This non-uniformity in energy usage makes some nodes to die early reducing the networkpsilas lifetime drastically leaving considerable amount of residual energy in others. In this work, we extend the single hop, multi hop and their hybrid transmission policies proposed in V. Mhatre and C. Rosenberg (2004) for polygonal network area instead of circular area. Through mathematical analysis we present the distribution of energy usage among sensors in different rings for polygonal network. Our work presents a more generalized theoretical analysis of network lifetime from transmission policy perspective considering practical deployment scenario. Numerical results show that multi hop transmission performs better than single hop transmission for path loss factor four and hybrid transmission policy performs better in terms of network lifetime and energy distribution than single hop and multi hop transmissions irrespective of network size.
{"title":"Distribution of energy usage in wireless sensor networks for polygonal coverage","authors":"A. Azad, J. Kamruzzaman","doi":"10.1109/ICCITECHN.2007.4579440","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579440","url":null,"abstract":"The increasing concentration of data traffic on sensors towards the base station in multi hop and escalating rate of energy drainage due to higher transmission distance at sensors towards the boundary in single hop communication cause an extremely non-uniform energy usage. This non-uniformity in energy usage makes some nodes to die early reducing the networkpsilas lifetime drastically leaving considerable amount of residual energy in others. In this work, we extend the single hop, multi hop and their hybrid transmission policies proposed in V. Mhatre and C. Rosenberg (2004) for polygonal network area instead of circular area. Through mathematical analysis we present the distribution of energy usage among sensors in different rings for polygonal network. Our work presents a more generalized theoretical analysis of network lifetime from transmission policy perspective considering practical deployment scenario. Numerical results show that multi hop transmission performs better than single hop transmission for path loss factor four and hybrid transmission policy performs better in terms of network lifetime and energy distribution than single hop and multi hop transmissions irrespective of network size.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124592319","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}
Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579450
K. Hoque, R.R. Haque, M.A. Hossain, M.S.F. Farazi, G. Hossain
Market research finds that mobile commerce for 4G wireless systems will be dominated by basic human communication such as messaging, voice, and video communication. Because of its typically large bandwidth requirements, broadband communication is expected to emerge as the dominant type of traffic in 4G wireless systems. In this paper a new TCP based Multicarrier access technique named MC-CDMA for mitigating 4G requirements is proposed. This paper also presents analytical information regarding the transfer of TCP data flows on paths towards interconnected wireless systems, with emphasis on 4G cellular networks. The focus is on protocol modifications in face of problems arising from terminal mobility and wireless transmission. We advocate the use of TCP as the transport layer protocol for high-speed data in a Multi-Carrier CDMA (MC-CDMA) system for 4G wireless communications.
{"title":"Modeling and performance of TCP in a MC-CDMA system for 4G communications","authors":"K. Hoque, R.R. Haque, M.A. Hossain, M.S.F. Farazi, G. Hossain","doi":"10.1109/ICCITECHN.2007.4579450","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579450","url":null,"abstract":"Market research finds that mobile commerce for 4G wireless systems will be dominated by basic human communication such as messaging, voice, and video communication. Because of its typically large bandwidth requirements, broadband communication is expected to emerge as the dominant type of traffic in 4G wireless systems. In this paper a new TCP based Multicarrier access technique named MC-CDMA for mitigating 4G requirements is proposed. This paper also presents analytical information regarding the transfer of TCP data flows on paths towards interconnected wireless systems, with emphasis on 4G cellular networks. The focus is on protocol modifications in face of problems arising from terminal mobility and wireless transmission. We advocate the use of TCP as the transport layer protocol for high-speed data in a Multi-Carrier CDMA (MC-CDMA) system for 4G wireless communications.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132382905","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}
Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579395
M. Molla, K. Hirose, N. Minematsu
This paper presents a text independent speaker identification system using multi-band features with artificial neural network. Linear predictive cepstrum coefficients (LPCCs) computed from sub-band signals with higher order statistics (HOS) are employed as the main features to represent the speaker characteristics. The multi-band representation of the speech signal is implemented by empirical mode decomposition (EMD). Dominant feature vectors are derived by applying principal component analysis (PCA) on LPCC space computed from the speech signal. The experimental results show that the proposed system improves the speaker identification performance. The efficiency is also compared for different features with noisy speech signals.
{"title":"Robust speaker identification system using multi-band dominant features with empirical mode decomposition","authors":"M. Molla, K. Hirose, N. Minematsu","doi":"10.1109/ICCITECHN.2007.4579395","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579395","url":null,"abstract":"This paper presents a text independent speaker identification system using multi-band features with artificial neural network. Linear predictive cepstrum coefficients (LPCCs) computed from sub-band signals with higher order statistics (HOS) are employed as the main features to represent the speaker characteristics. The multi-band representation of the speech signal is implemented by empirical mode decomposition (EMD). Dominant feature vectors are derived by applying principal component analysis (PCA) on LPCC space computed from the speech signal. The experimental results show that the proposed system improves the speaker identification performance. The efficiency is also compared for different features with noisy speech signals.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129909586","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}
Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579362
S. Banik, F. Chanchary, R. A. Rouf, K. Khan
Stock market prediction is an important area of financial forecasting, which attracts great interest to stock investors, stock buyers/sellers, policy makers, applied researchers and many others who are involved in the capital market. This paper aims to develop an efficient model to predict the Dhaka stock market index (DSPI) values using the appropriate forecasting model. It is widely believed that stock data are nonlinear, dynamic and chaotic. In this paper, we propose an adaptive network based fuzzy inference system (ANFIS) to predict DSPI values. We used the daily general DSPI values for the period of March 2003 to October10, 2006 for the learning and October 11, 2006 to May 31, 2007 for the validation. Results obtained by this model are also compared to the back-propagation ANN model and the traditional ARIMA model to show advantages of proposed ANFIS model. Findings suggest that the ANFIS model can be used as a better predictor for daily general DSPI values as compared to the ANN and the ARIMA models.
{"title":"Modeling chaotic behavior of Dhaka Stock Market Index values using the neuro-fuzzy model","authors":"S. Banik, F. Chanchary, R. A. Rouf, K. Khan","doi":"10.1109/ICCITECHN.2007.4579362","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579362","url":null,"abstract":"Stock market prediction is an important area of financial forecasting, which attracts great interest to stock investors, stock buyers/sellers, policy makers, applied researchers and many others who are involved in the capital market. This paper aims to develop an efficient model to predict the Dhaka stock market index (DSPI) values using the appropriate forecasting model. It is widely believed that stock data are nonlinear, dynamic and chaotic. In this paper, we propose an adaptive network based fuzzy inference system (ANFIS) to predict DSPI values. We used the daily general DSPI values for the period of March 2003 to October10, 2006 for the learning and October 11, 2006 to May 31, 2007 for the validation. Results obtained by this model are also compared to the back-propagation ANN model and the traditional ARIMA model to show advantages of proposed ANFIS model. Findings suggest that the ANFIS model can be used as a better predictor for daily general DSPI values as compared to the ANN and the ARIMA models.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124319991","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}
Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579398
Md. Tajmilur Rahman, Al-Amin, M. A. J. B. Bakkre, A. Chowdhury, Md. Al-Amin Bhuiyan
Image morphing has been the subject of much attention in recent years. It has proven to be a powerful tool for visual effects in film and television, depicting the fluid transformation of one digital image into another. This paper presents a new approach of image morphing based on pixel transformation that depicts the transformation of pixels with their neighborhoods. The method is organized with the replacement of the pixel values of a source image and convolving the neighbor with the help of a mask. This algorithm changes an image from a particular side or from the center. Experimental results demonstrate that the method is fast and efficient for image morphing.
{"title":"A novel approach of image morphing based on pixel transformation","authors":"Md. Tajmilur Rahman, Al-Amin, M. A. J. B. Bakkre, A. Chowdhury, Md. Al-Amin Bhuiyan","doi":"10.1109/ICCITECHN.2007.4579398","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579398","url":null,"abstract":"Image morphing has been the subject of much attention in recent years. It has proven to be a powerful tool for visual effects in film and television, depicting the fluid transformation of one digital image into another. This paper presents a new approach of image morphing based on pixel transformation that depicts the transformation of pixels with their neighborhoods. The method is organized with the replacement of the pixel values of a source image and convolving the neighbor with the help of a mask. This algorithm changes an image from a particular side or from the center. Experimental results demonstrate that the method is fast and efficient for image morphing.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115150296","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}
Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579375
A. Mahmud, M. Khan
Now a day, the importance of a large annotated corpus for NLP researchers is widely known. In this paper, we describe an initial phase of developing a linguistically annotated corpus for non-configurational dasiaBanglapsila language. Since, the formalism differs from those posited for configurational languages; several features have been added for constraint based parsing through HPSG-based formalism. We propose an outline of a semi-automated process by applying both case marking approach and some morphological analysis to constraint the parsing of a relatively free word order language for creating a linguistically rich, highly-lexicalized annotated corpus.
{"title":"Building a foundation of HPSG-based treebank on Bangla language","authors":"A. Mahmud, M. Khan","doi":"10.1109/ICCITECHN.2007.4579375","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579375","url":null,"abstract":"Now a day, the importance of a large annotated corpus for NLP researchers is widely known. In this paper, we describe an initial phase of developing a linguistically annotated corpus for non-configurational dasiaBanglapsila language. Since, the formalism differs from those posited for configurational languages; several features have been added for constraint based parsing through HPSG-based formalism. We propose an outline of a semi-automated process by applying both case marking approach and some morphological analysis to constraint the parsing of a relatively free word order language for creating a linguistically rich, highly-lexicalized annotated corpus.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"278 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113982680","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}
Pub Date : 2007-09-01DOI: 10.1109/ICCITECHN.2007.4579372
M.Z. Rahman, F. Rahman
This paper analyzes the recently popular Bangla input mechanisms as such phonetic input schemes with traditionally popular touch type layouts. Traditionally, phonetic input schemes are regarded as inefficient. On the ground of popularity of phonetic schemes, this paper tries to find the answer why such kind of supposedly inefficient approach can gain rapid popularity. Is it only due to the learning requirement of another layout or there are real benefits using these? In this regard, the phonological correlation between English and Bangla is established showing that phonetic schemes are not as inefficient as it was supposed to be. Subsequently, the popular phonetic and touch type layouts are analyzed based on Bangla corpus analysis of four million words. The mean number of keystrokes for inputting a single Bangla character is calculated for comparison of different layouts. The analysis establishes that on the basis of keystroke minimization there exists phonetic layouts which are even better than traditional touch type input methods.
{"title":"On the context of popular input methods and analysis of phonetic schemes for Bangla users","authors":"M.Z. Rahman, F. Rahman","doi":"10.1109/ICCITECHN.2007.4579372","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579372","url":null,"abstract":"This paper analyzes the recently popular Bangla input mechanisms as such phonetic input schemes with traditionally popular touch type layouts. Traditionally, phonetic input schemes are regarded as inefficient. On the ground of popularity of phonetic schemes, this paper tries to find the answer why such kind of supposedly inefficient approach can gain rapid popularity. Is it only due to the learning requirement of another layout or there are real benefits using these? In this regard, the phonological correlation between English and Bangla is established showing that phonetic schemes are not as inefficient as it was supposed to be. Subsequently, the popular phonetic and touch type layouts are analyzed based on Bangla corpus analysis of four million words. The mean number of keystrokes for inputting a single Bangla character is calculated for comparison of different layouts. The analysis establishes that on the basis of keystroke minimization there exists phonetic layouts which are even better than traditional touch type input methods.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124025407","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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