Pub Date : 2007-12-01DOI: 10.1109/ICCITECHN.2007.4579403
Mohammed Jabir Mowla, Mohammad Shabab Zaman, Mashook Mujib Chowdhury, Sahar Noor Abdal
Computer based MCQ Examination can be a very reliable way of taking exams in class. Since there is an involvement of a machine, the marking and taking of the exam is easier and faster, but the process requires a computer for each examinee, so it cannot be held in ordinary classrooms. In this paper we used combinational logic circuits and readily available ICs to build up a hardware setup that could be used to take and mark exams with the aid of a single central computer for any number of candidates in any place. The setup consists of a single unit of answering console for each candidate, with answering buttons and an in-built memory unit to store the required answer. These consoles are centrally attached to a hub through which the answers are fed into the central computer by software that controls the input and output data lines of the computer. The answers are calculated and displayed on screen dynamically for fast feedback to students and ensure effective classroom learning.
{"title":"Electronic MCQ answering system for classroom e-learning and examination","authors":"Mohammed Jabir Mowla, Mohammad Shabab Zaman, Mashook Mujib Chowdhury, Sahar Noor Abdal","doi":"10.1109/ICCITECHN.2007.4579403","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579403","url":null,"abstract":"Computer based MCQ Examination can be a very reliable way of taking exams in class. Since there is an involvement of a machine, the marking and taking of the exam is easier and faster, but the process requires a computer for each examinee, so it cannot be held in ordinary classrooms. In this paper we used combinational logic circuits and readily available ICs to build up a hardware setup that could be used to take and mark exams with the aid of a single central computer for any number of candidates in any place. The setup consists of a single unit of answering console for each candidate, with answering buttons and an in-built memory unit to store the required answer. These consoles are centrally attached to a hub through which the answers are fed into the central computer by software that controls the input and output data lines of the computer. The answers are calculated and displayed on screen dynamically for fast feedback to students and ensure effective classroom learning.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"91 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":"123428964","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.2007.4579385
I. Khirul, M.K. Islam, K. Hasan
This paper evaluates an efficient approach for network address translation (NAT) problem on voice over Internet protocol (VoIP) network system. Based on our experiment, we examined the latency, buffer size and voice packet loss under various network conditions. We found that it is possible to establish a call from outside the NAT to inside maintaining the quality issues of VoIP call. With this approach it is possible to use the current network architecture with having few changes in the registrar server. Based on this result, we propose a model for VoIP system that eliminates NAT traversal problem of VoIP call setup. Hence we evaluate our model showing the QoS conditions that achieves both high efficiency and secure voice transmission.
{"title":"An efficient approach for NAT traversal problem on security of voice over internet protocol","authors":"I. Khirul, M.K. Islam, K. Hasan","doi":"10.1109/ICCITECHN.2007.4579385","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579385","url":null,"abstract":"This paper evaluates an efficient approach for network address translation (NAT) problem on voice over Internet protocol (VoIP) network system. Based on our experiment, we examined the latency, buffer size and voice packet loss under various network conditions. We found that it is possible to establish a call from outside the NAT to inside maintaining the quality issues of VoIP call. With this approach it is possible to use the current network architecture with having few changes in the registrar server. Based on this result, we propose a model for VoIP system that eliminates NAT traversal problem of VoIP call setup. Hence we evaluate our model showing the QoS conditions that achieves both high efficiency and secure voice transmission.","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":"123753593","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.2007.4579358
M. Alam, M.A. Rahman, M.M. Islam
This paper presents a completely new approach to fulfill both local and global optimization goals simultaneously of the conventional evolutionary algorithm. The basis of the proposed framework is repeatedly alternating three different stages of evolution, each with its own objective and genetic operators. As the stages execute repeatedly, the conflicting goals of local optimization and global exploration are distributed gracefully across the generations of the different stages. The proposed system is compared with classical evolutionary programming (CEP), fast evolutionary programming (FEP) and improved fast evolutionary programming (IFEP) on a number of standard benchmark problems. The experimental results show that the new approach performs better optimization with a higher rate of convergence for most of the problems.
{"title":"A new framework for balancing both local and global optimizations in evolutionary algorithms","authors":"M. Alam, M.A. Rahman, M.M. Islam","doi":"10.1109/ICCITECHN.2007.4579358","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579358","url":null,"abstract":"This paper presents a completely new approach to fulfill both local and global optimization goals simultaneously of the conventional evolutionary algorithm. The basis of the proposed framework is repeatedly alternating three different stages of evolution, each with its own objective and genetic operators. As the stages execute repeatedly, the conflicting goals of local optimization and global exploration are distributed gracefully across the generations of the different stages. The proposed system is compared with classical evolutionary programming (CEP), fast evolutionary programming (FEP) and improved fast evolutionary programming (IFEP) on a number of standard benchmark problems. The experimental results show that the new approach performs better optimization with a higher rate of convergence for most of the problems.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"27 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":"126053005","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.2007.4579410
S. Bose, M. R. Rashel
E-governance is a process of reform in the way governments work share information, engage citizens and deliver services to external and internal clients for the benefit of both government and the clients that they serve. At that point, a new nomenclature will arise reflecting the change articulated in future generations. But this new nomenclature will only be an extension of the discipline that began to evolve in the late twentieth century. Here we successfully implement e-governance in Bangladesh using modified OECD model and modified Gartner Model based upon the infrastructure of telecom industries lying here following the strategy proposed by Riley and Sheridan.
{"title":"Implementing e-governance using oecd model (modified) and gartner model (modified) upon agriculture of Bangladesh","authors":"S. Bose, M. R. Rashel","doi":"10.1109/ICCITECHN.2007.4579410","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579410","url":null,"abstract":"E-governance is a process of reform in the way governments work share information, engage citizens and deliver services to external and internal clients for the benefit of both government and the clients that they serve. At that point, a new nomenclature will arise reflecting the change articulated in future generations. But this new nomenclature will only be an extension of the discipline that began to evolve in the late twentieth century. Here we successfully implement e-governance in Bangladesh using modified OECD model and modified Gartner Model based upon the infrastructure of telecom industries lying here following the strategy proposed by Riley and Sheridan.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"53 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":"125968774","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.2007.4579401
N. Halder, A.B.M. Tariqul Islam, M.F. Elahi, J. Song
Binary decision diagrams (BDDs) provide a canonical and compact representation of Boolean functions. The canonical property makes it possible to easily detect many useful properties of Boolean functions such as size of the support set, symmetry between variables etc. Furthermore, BDDs compact representation coupled with the use of data structures for caching intermediate computations allows the effective implementation of many Boolean operations. In this paper, we present a new methodology and implementation details of the composition techniques of two combinational switching functions using reduced ordered binary decision diagrams ROBDDs. For instance, given two switching functions A and B, we present the composition formulas AnlandB,A or B,ArarrB etc using ROBDDs. In this regard, we have used the concept of Shannonpsilas expansion to directly build ROBDDs. An adequate number of examples have been used to make our method clear.
{"title":"Analysis of composition techniques for combinational switching functions using reduced ordered Binary Decision Diagrams (ROBDDs)","authors":"N. Halder, A.B.M. Tariqul Islam, M.F. Elahi, J. Song","doi":"10.1109/ICCITECHN.2007.4579401","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579401","url":null,"abstract":"Binary decision diagrams (BDDs) provide a canonical and compact representation of Boolean functions. The canonical property makes it possible to easily detect many useful properties of Boolean functions such as size of the support set, symmetry between variables etc. Furthermore, BDDs compact representation coupled with the use of data structures for caching intermediate computations allows the effective implementation of many Boolean operations. In this paper, we present a new methodology and implementation details of the composition techniques of two combinational switching functions using reduced ordered binary decision diagrams ROBDDs. For instance, given two switching functions A and B, we present the composition formulas AnlandB,A or B,ArarrB etc using ROBDDs. In this regard, we have used the concept of Shannonpsilas expansion to directly build ROBDDs. An adequate number of examples have been used to make our method clear.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"106 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":"132102112","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.2007.4579419
M. Quaddus, A. Lau
The rapid growth of highly sophisticated computers and Web-based information systems (WIS) as integral components of business operations have led to an increased interest in the role of user participation during WIS implementation and its influence on end-user satisfaction and, ultimately, organisational success. The primary purpose of this research is, therefore, to investigate the significance of user-characteristics during WIS implementation. The research is conducted by collecting data via survey among organizations in Hong Kong. The important findings of this study demonstrate that user participation is positively related to user satisfaction and organisational effectiveness. In addition, user satisfaction can be largely applied to mediate the relationship between user participation (through user training, career stage, and empowerment) and organisational effectiveness. A deeper understanding of these concepts will provide organisations in Hong Kong with a richer view of the role of user participation during Web based information system implementation, which in turn has the potential to contribute towards improved business performance.
{"title":"Impact of user participation on Web-based information system: The Hong Kong experience","authors":"M. Quaddus, A. Lau","doi":"10.1109/ICCITECHN.2007.4579419","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579419","url":null,"abstract":"The rapid growth of highly sophisticated computers and Web-based information systems (WIS) as integral components of business operations have led to an increased interest in the role of user participation during WIS implementation and its influence on end-user satisfaction and, ultimately, organisational success. The primary purpose of this research is, therefore, to investigate the significance of user-characteristics during WIS implementation. The research is conducted by collecting data via survey among organizations in Hong Kong. The important findings of this study demonstrate that user participation is positively related to user satisfaction and organisational effectiveness. In addition, user satisfaction can be largely applied to mediate the relationship between user participation (through user training, career stage, and empowerment) and organisational effectiveness. A deeper understanding of these concepts will provide organisations in Hong Kong with a richer view of the role of user participation during Web based information system implementation, which in turn has the potential to contribute towards improved business performance.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"12 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":"131264261","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.2007.4579383
M. G. Mostafa, F. Ahmed, K.H. Rahman
A channel-spacing tunable and switchable multiwavelength Erbium-doped fiber laser (MW-EDFL) operating at room temperature is studied using available experimental data. The multiwavelength generation is achieved mainly based on a single segmented polarization maintaining fiber (PMF) in Lyot-Sagnac loop filter (LSLF) and an all-fiber phase modulator. The channel space tuning is performed by means of a polarizer and the DC offset voltage of a Lithium-Niobate (LiNbO3) amplitude modulator and multiwavelenth switching is performed using polarization controller, those are incorporated in the PMF-LSLF. It is found that discrete channel-spacing of 0.27 nm to 1.62 nm and corresponding time delay between two orthogonal polarization states of the beam of 30 ps to 5 ps, respectively, can be achieved. A spectral continuum is also achieved by introducing a time delay of 0.895 ps. On top of the experimental study, a mathematical model of channel-spacing tunable PMF-LSLF, which is used in the laser scheme, is also investigated using MATLABTM.
{"title":"Channel spacing tunable multiwavelength EDF laser based on single segmented polarization maintaining fiber Lyot-Sagnac loop filter","authors":"M. G. Mostafa, F. Ahmed, K.H. Rahman","doi":"10.1109/ICCITECHN.2007.4579383","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579383","url":null,"abstract":"A channel-spacing tunable and switchable multiwavelength Erbium-doped fiber laser (MW-EDFL) operating at room temperature is studied using available experimental data. The multiwavelength generation is achieved mainly based on a single segmented polarization maintaining fiber (PMF) in Lyot-Sagnac loop filter (LSLF) and an all-fiber phase modulator. The channel space tuning is performed by means of a polarizer and the DC offset voltage of a Lithium-Niobate (LiNbO3) amplitude modulator and multiwavelenth switching is performed using polarization controller, those are incorporated in the PMF-LSLF. It is found that discrete channel-spacing of 0.27 nm to 1.62 nm and corresponding time delay between two orthogonal polarization states of the beam of 30 ps to 5 ps, respectively, can be achieved. A spectral continuum is also achieved by introducing a time delay of 0.895 ps. On top of the experimental study, a mathematical model of channel-spacing tunable PMF-LSLF, which is used in the laser scheme, is also investigated using MATLABTM.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"18 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":"115386499","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.2007.4579356
A. Wasif, M.S. Hossain, N. Muslim
Theory-softening is a novel way of utilization of imperfect domain theories. Soft interpretation of given flawed theories provides a way of classifying examples despite the presence of impurities in the theory. However, theory-softening is not equally successful for all possible types of flaws present. This paper investigates the performance of theory-softening and finds that while it is useful for impurities introducing over-specificity, it can become unhelpful and cause degraded performance for impurities introducing over-generality.
{"title":"The impact of different types of impurity on theory-softening","authors":"A. Wasif, M.S. Hossain, N. Muslim","doi":"10.1109/ICCITECHN.2007.4579356","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579356","url":null,"abstract":"Theory-softening is a novel way of utilization of imperfect domain theories. Soft interpretation of given flawed theories provides a way of classifying examples despite the presence of impurities in the theory. However, theory-softening is not equally successful for all possible types of flaws present. This paper investigates the performance of theory-softening and finds that while it is useful for impurities introducing over-specificity, it can become unhelpful and cause degraded performance for impurities introducing over-generality.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"432 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":"122874534","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.2007.4579430
M. Bhuiyan, M. M. Islam, N. Begum, M. Hasanuzzaman, C. Liu, H. Ueno
This paper presents a vision based gesture recognition system for human-robot symbiosis. The system is based on the visual information of the face and is commenced with the recognition of face gesture by connected component analysis of the skin color segmentation of images in HSV color model and neural network based pattern-matching strategies. On gesture recognition, robot is being instructed to perform certain tasks by issuing commands. The system is capable of recognizing static gestures comprised of the face poses, and dynamic gestures of face in motion. The effectiveness of the system has been justified over some experiments. The system has been demonstrated with an entertainment robot named ldquoAIBOrdquo as a human-robot symbiotic relationship.
{"title":"Vision based gesture recognition for human-robot symbiosis","authors":"M. Bhuiyan, M. M. Islam, N. Begum, M. Hasanuzzaman, C. Liu, H. Ueno","doi":"10.1109/ICCITECHN.2007.4579430","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579430","url":null,"abstract":"This paper presents a vision based gesture recognition system for human-robot symbiosis. The system is based on the visual information of the face and is commenced with the recognition of face gesture by connected component analysis of the skin color segmentation of images in HSV color model and neural network based pattern-matching strategies. On gesture recognition, robot is being instructed to perform certain tasks by issuing commands. The system is capable of recognizing static gestures comprised of the face poses, and dynamic gestures of face in motion. The effectiveness of the system has been justified over some experiments. The system has been demonstrated with an entertainment robot named ldquoAIBOrdquo as a human-robot symbiotic relationship.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"128 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":"122931005","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.2007.4579400
M. Chowdhury, M. M. Islam, N. Begum, M. Bhuiyan
Image enhancement is a technique to improve the quality of an image. The aim of image enhancement technique is to improve the interpretability or perception of information in images for human viewers, or to provide better input for other automated image processing techniques. This paper presents a new approach for image enhancement with fuzzy rule-based filtering. Compared to other non-linear techniques, fuzzy filter gives the better performance and is able to represent knowledge in a comprehensible way.
{"title":"Digital image enhancement with fuzzy rule-based filtering","authors":"M. Chowdhury, M. M. Islam, N. Begum, M. Bhuiyan","doi":"10.1109/ICCITECHN.2007.4579400","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2007.4579400","url":null,"abstract":"Image enhancement is a technique to improve the quality of an image. The aim of image enhancement technique is to improve the interpretability or perception of information in images for human viewers, or to provide better input for other automated image processing techniques. This paper presents a new approach for image enhancement with fuzzy rule-based filtering. Compared to other non-linear techniques, fuzzy filter gives the better performance and is able to represent knowledge in a comprehensible way.","PeriodicalId":338170,"journal":{"name":"2007 10th international conference on computer and information technology","volume":"56 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":"126106920","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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