Liu YuJie1, Bao Feng1, Li ZongMin1, and Li Hua2
1School of Computer Science Communication Engineering, China University of Petroleum, China
2National Research Center for Intelligent Computing Systems, Institute of Computing Technology, Chinese Academy of Sciences, China

 

Abstract: In this paper, a new tool that is fractional Fourier Transform is introduced to 3D model retrieval. And we propose a 3D model descriptor based on 3D factional Fourier transform. Fractional Fourier transform is a general format of Fourier transform, and add a variables that is order. Our approach is based on volume. The first step of the approach is that voxelize these 3D models. A coarse voxelization is regarded as the input for the 3D discrete factional Fourier transform (3DDFRFT). A set of (complex) coefficient is obtained by 3DDFRFT in each order. The absolute values of coefficients are considered as components of the feature vector in each order. We also can integrate these feature vectors into the mixed feature vector, which is named as Multi-Order fractional Fourier Feature Vector (MOFFFV). We finally present our results and compare our method to 3D descriptor based on 3D Fourier Transform on the Princeton Shape Benchmark database.

Keywords: 3D discrete factional fourier transform, 3D model, feature extraction, retrieval.

 

Received September 23, 2010; accepted May 24, 2011

  

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Saiful Bukhori1, Mochamad Hariadi2, I Ketut Eddy Purnama3, and Mauridhi Hery Purnomo4
1Program Study of Information System, Jember University, Indonesia
2,3,4Electrical Engineering Department, Sepuluh Nopember Institute of Technology, Indonesia

 

Abstract: This research proposed parrondo’s paradox strategies in the serious game of Real Time Gross Settlement (RTGS) using forest fire model, which develop the existence of the parrondo paradox and applied in serious game of RTGS system as switching in the settlement process. The settlement process, that our proposed at this paper, is managed by clearing house. The mechanism at clearing house is a transmitter client sends a message of transaction through transmitter bank, that having canal at clearing house, then continue to receiver client through receiver bank by using forest fire model. When settlement process done by one transmitter bank (Process A), the probability of increase Net Worth (NW) is p. When settlement process done by more than one transmitter bank (Process B), we have introduced the probabilities of a self-transition in each state, that is, if the capital is a multiple of three we have a probability r1 of remaining in the same state, whereas if the capital is not a multiple of three then the probability is r2. We will turn to the random alternation of process A and B with probability γ. This will be named as process AB. Examination result of process A change in net worth trend to decrease, process B trend to decrease and process AB that switches randomly between process A and process B trend to increase net worth. Simulation of parrondo’s paradox based strategies in the serious game RTGS using star logo by randomize process A and process B so distribution net worth lot  in the bank that has wealth in intermediate level, total money and total loan trend to rise, total saving loan trend to rise but total wallets trend to decrease.

Keywords: Parrondo paradox, RTGS, forest fire model, net worth.

 

Received November 23, 2010; accepted May 24, 2011

  

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Marryam Murtaza, Muhammad Sharif, Mudassar Raza, and Jamal Hussain Shah
Department of Computer Sciences, COMSATS Institute of Information Technology, Pakistan

 

Abstract: Automatic Face Recognition is one of the most emphasizing dilemmas in diverse of potential relevance like in different surveillance systems, security systems, authentication or verification of individual like criminals etc. Adjoining of dynamic expression in face causes a broad range of discrepancies in recognition systems. Facial Expression not only exposes the sensation or passion of any person but can also be used to judge his/her mental views and psychosomatic aspects. This paper is based on a complete survey of face recognition conducted under varying facial expressions. In order to analyze different techniques, motion-based, model-based and muscles-based approaches have been used in order to handle the facial expression and recognition catastrophe. The analysis has been completed by evaluating various existing algorithms while comparing their results in general. It also expands the scope for other researchers for answering the question of effectively dealing with such problems.

Keywords: Facial expression, holistic, local, model, optical flow, muscles based and coding system.

 

Received January 1, 2011; accepted May 24, 2011

  

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Hassan Yousif Ahmed1, Mohammed Elmaleeh2, Hilal Adnan Fadhil3, and Syed Aljunid3
1Department of Electrical Engineering, Salam Bin Abdulaziz University, Kingdom of Saudi Arabia
 2Faculty of Engineering, University of Gezira, Sudan
3School of Computer and Communication Engineering, Universiti Malaysia Perlies, Malaysia

 

Abstract:  In this paper, a new code structure with ideal in-phase cross-correlation for the Spectral-Amplitude-Coding Optical Code-Division Multiple-Access (SAC-CDMA) system called Vectors Combinatorial (VC) code is proposed. VC code is constructed using Euclidian vectors and a simple algebraic way for any positive integer number based on the relationship between the number of users N and the weight W.    We have also studied the performance of OCDMA systems using a newly proposed Direct Recovery Scheme (DRS) under various link parameters. The impact of the detection techniques and data rate effects on the Multi-User Interference (MUI) is reported using a commercial optical systems simulator, Virtual Instrument Photonic (VPITM). The VC code is compared mathematically with other codes which use similar techniques. We analyzed and optimized the data rate, fiber length, and channel spacing in order to reduce the BER effect. A comparison between Complementary and DRS techniques for theoretical and simulation results taken from VPITM is demonstrated.  It is verified that, for a high data rate (higher than 2.5 Gb/s), even if dispersion compensated devices are not deployed, the BER can be significantly improved when the VC code with desired parameters are selected using DRS technique. Also it is found that as the channel spacing width goes from very narrow to wide, the BER decreases and best performance occurs at a spacing bandwidth between 0.8 and 1 nm. In addition, we have shown that the proposed new DRS technique utilizing VC code significantly improves the performance compared with the conventional SAC Complementary subtraction technique.

Keywords: VC, MUI, SAC-OCDMA, BER, DRS.

 

Received February 1, 2011; accepted July 28, 2011

  

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Muazzam Siddiqui1, Mohammad Fayoumi2, and Nidal Yusuf3
1Faculty of Computing and Information Technology, King Abdulaziz University, KSA
2Faculty of Computers and Information Systems, Umm Al-Qura University, KSA
3Faculty of Information Technology, Al Isra University, Jordan

 

Abstract: Automatic thesaurus generation is used by search engines for query expansion. The same concept is used by search engine marketing companies to suggest keyword terms to their clients to improve the client’s ratings for different search engines. This paper presents and evaluates a corpus based method to find similar terms. The corpus is generated by scraping websites in different categories. A feature selection method is developed that rewards category specific terms and penalizes terms shared by two or more categories. The similarity measure is decomposed into three distinct components, namely contextual, functional and lexical similarities. The contextual similarity measure finds terms that are found in the same context. Functional similarity finds terms on co-occurrence basis while the lexically similar terms share one or more words. An overall similarity measure combines the evidence from these three measures.

Keywords: Information retrieval, text mining, term similarity, search engine marketing.

 

Received July 3, 2011; accepted May 22, 2012

  

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Zheng Tang, Chao Sun, Zongwei Liu
School of Marine Technology, Northwestern Polytechnical University, China

 

Abstract: The application of kalman filter in tracking the maneuver target is not available as it is used in tracking the target of uniform motion. Therefore, a improved method for tracking a maneuver target is proposed. In the proposed approach, the maneuver detector provides the estimate of time instant at which a target starts to maneuver, when a target maneuver is determined, the kalman filter model will be adjusted with varied target motion state. The maneuver, modeled as an acceleration, is estimated recurslvely. Finally, the performance of the proposed approach is shown to be superior to kalman filter by simulation.

Keywords: Adaptive kalman filter, maneuver target tracking, maneuver detector, state estimation.

 

Received June 29, 2011; accepted December 30, 2011

  

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Kunjithapatham Meena1, Kulumani Subramaniam2, and Muthusamy Gomathy3
1Vice Chancellor, Bharathidhasan University, Principal and Director, India
2Department of Computer Application, Shrimathi Indira Gandhi College, India
3Department of Computer Science, Shrimathi Indira Gandhi College, India

 

Abstract: Nowadays classification of gender is one of the most important processes in speech processing. Usually gender classification is based on considering pitch as feature. The pitch value of female is higher than the male. In most of the recent research works gender classification process is performed using the abovementioned condition. In some cases the pitch value of male is higher and also pitch of some female is low, in that case this classification does not produce the exact required result. By considering the aforementioned problem we have here proposed a new method for gender classification method which considers three features. The new method uses fuzzy logic and neural network to identify the gender of the speaker. To train fuzzy logic and neural network, training dataset is generated by using the above three features. Then mean value is calculated for the obtained result from fuzzy logic and neural network. By using this threshold value, the proposed method identifies the speaker belongs to which gender. The implementation result shows the performance of the proposed technique in gender classification.

Keywords: Gender classification, fuzzy logic, neural network, energy entropy, short time energy, zero crossing rate.

 

Received July 16, 2011; accepted December 30, 2011

  

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Rytis Maskeliunas and Vidas Raudonis
Kaunas University of Technology, Lithuania

 

Abstract: The smart furniture provide various services alone or by communication with other devices. The cost and time for building such devices is a barrier to the deployment of various novel applications. Since the smart devices are typically equipped with embedded or traditional computers, various sensors and multimodal I/O devices, it can provide various services in public spaces as well as in private spaces. The goal of our research was to introduce affordable techniques on how to build and model the acceptable multimodal HCIs and interactions with the environment all integrated in the mobile smart furniture device. In this paper we present a detailed analysis of the associated, promising state of the art techniques and the initial set of techniques we have used to realize the multimodal HCI interaction, followed by the descriptions of implemented control algorithms and some first-hand experimental evaluation analysis.

Keywords: Human computer interaction, information interfaces and representation, user interfaces, image processing and computer vision, natural language processing, algorithms and applications.

 

Received August 16, 2011; accepted December 30, 2012

  

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Alfian Abdul Halin1, Mandava Rajeswari2, and Mohammad Abbasnejad3
1Faculty of Computer Science and Information Technology, Universiti Putra Malaysia, Malaysia
2School of Computer Sciences, Universiti Sains Malaysia, Malaysia
3College of Engineering & Computer Science, Australian National University, Australia

 

Abstract: This paper presents a framework for soccer event detection through collaborative analysis of the textual, visual and aural modalities. The basic notion is to decompose a match video into smaller segments until ultimately the desired eventful segment is identified. Simple features are considered namely the minute-by-minute reports from sports websites (i.e. text), the semantic shot classes of far and closeup-views (i.e. visual), and the low-level features of pitch and log-energy (i.e. audio). The framework demonstrates that despite considering simple features, and by averting the use of labeled training examples, event detection can be achieved at very high accuracy. Experiments conducted on ~30-hours of soccer video show very promising results for the detection of goals, penalties, yellow cards and red cards.

Keywords: Soccer event detection, sports video analysis, semantic gap, webcasting text.

 

Received August 20, 2011; accepted December 30, 2011

  

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Saima Ijaz1, Ehsan Ullah Munir1, Waqas Anwar2, and Wasif Nasir1
1Department of Computer Science, COMSATS Institute of Information Technology, Wah Cantt Pakistan
2Department of Computer Science, COMSATS Institute of Information Technology, Abbottabad Pakistan

 

Abstract: Today’s multi-computer systems are heterogeneous in nature, i.e., the machines they are composed of, have varying processing capabilities and are interconnected through high speed networks, thus, making them suitable for performing diverse set of computing-intensive applications. In order to exploit the high performance of such a distributed system, efficient mapping of the tasks on available machines is necessary. This is an active research topic and different strategies have been adopted in literature for the mapping problem. A novel approach has been introduced in the paper for the efficient mapping of the DAG-based applications. The approach that takes into account the lower and upper bounds for the start time of the tasks. The algorithm is based on list scheduling approach and has been compared with the well known list scheduling algorithms existing in the literature. The comparison results for the randomly synthesized graphs as well as the graphs from the real world elucidate that the proposed algorithm significantly outperforms the existing ones on the basis of different cost and performance metrics.

Keywords: Directed acyclic graphs, task scheduling, task prioritization, makespan.

 

Received August 9, 2011; accepted December 30, 2011

  

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Syed Khaldoon Khurshid and Muhammad Shoaib
Department of Computer Science and Engineering, University of Engineering and Technology, Pakistan

 

Abstract: Efficient and relevant retrieval of any type of the data, especially multimedia objects, is based on indexing technique. Due to complexity of multimedia data, existing indexing techniques for multimedia objects suffer from irrelevant retrieval. Rhetorical Structure Theory (RST) has already been successfully implemented for indexing text documents, which has reduced irrelevancy. The focus of this research paper is to propose an indexing technique for image objects using RST. An indexing technique is proposed for image objects using image relation framework for RST. To elaborate the functionality of proposed indexing technique, a case study is presented for image objects. Further research can be carried out for indexing technique of other multimedia objects.

Keywords: indexing techniques, RST, image indexing.

 

Received September 14, 2011; accepted December 30, 2011

  

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Aimi Abdul Nasir1, Mohd Yusoff Mashor1, and Rosline Hassan2
1Electronic & Biomedical Intelligent Systems Research Group, Universiti Malaysia Perlis, Malaysia
2Department of Haematology, Universiti Sains Malaysia, Malaysia

 

Abstract: Leukaemia is a cancer of blood that causes more death than any other cancers among children and young adults under the age of 20. This disease can be cured if it is detected and treated at the early stage. Based on this argument, the requirement for fast analysis of blood cells for leukaemia is of paramount importance in the healthcare industry. This paper presents the classification of white blood cells (WBC) inside the Acute Lymphoblastic Leukaemia (ALL) and Acute Myelogenous Leukaemia blood samples by using the Multilayer Perceptron (MLP) and Simplified Fuzzy ARTMAP (SFAM) neural networks. Here, the WBC will be classified as lymphoblast, myeloblast and normal cell for the purpose of categorization of acute leukaemia types. Two different training algorithms namely Levenberg-Marquardt and Bayesian Regulation algorithms have been employed to train the MLP network. There are a total of 42 input features that consist of the size, shape and colour based features, have been extracted from the segmented WBCs, and used as the neural network inputs for the classification process.

Keywords: Acute leukaemia cells, feature extraction, classification, multilayer perceptron neural network, simplified fuzzy ARTMAP neural network.

 

Received September 19, 2011; accepted December 30, 2011

  

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Mohammad Hassan
Faculty of Information Technology, Al-Ahliyya Amman University, Jordan

 

Abstract: Current Internet trends are moving towards decentralization of computation, storage, and resources. Supporting network management for such a vast and a highly complex system has become a challenging issue. A management platform has to sufficiently support decentralization, collaboration, and integration. Grid technologies have the potential to serve as management architecture due to the support of the above features.  In this paper, we developed a collaborative network management architecture leveraging the key features of grid technology. Benefiting from this integration, we were able to show that multiple management tasks can be integrated and completed in parallel. This assures the management scalability and efficiency. We also showed that the management information at different networking domains can freely consume the computational resources provided through the grid interface while being executed. Grid interface has guaranteed scalability and reliability for the network management tasks. We have simulated the system prototype and closely studied its efficiency.

Keywords: Grid, network and systems management, integrated management, virtual organizations.

 

Received September 12, 2011; accepted December 30, 2011

  

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