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2009 International Conference on Knowledge and Systems Engineering

13-17 Oct. 2009

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Displaying Results 1 - 25 of 52
  • [Front cover]

    Publication Year: 2009, Page(s): C1
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  • [Title page i]

    Publication Year: 2009, Page(s): i
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  • [Title page iii]

    Publication Year: 2009, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2009, Page(s): iv
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  • Table of contents

    Publication Year: 2009, Page(s):v - viii
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  • Message from the Conference Chair

    Publication Year: 2009, Page(s): ix
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  • Message from the Program Chairs

    Publication Year: 2009, Page(s): x
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  • Conference organization

    Publication Year: 2009, Page(s):xi - xii
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  • Classification of Cardiac Arrhythmias Using Interval Type-2 TSK Fuzzy System

    Publication Year: 2009, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (347 KB) | HTML iconHTML

    The paper proposes a method to construct type-2 Takagi-Sugeno-Kang (TSK) fuzzy system for electrocardiogram (ECG) arrhythmic classification. The classifier is applied to distinguish normal sinus rhythm (NSR), ventricular fibrillation (VF) and ventricular tachycardia (VT). Two features of ECG signals, the average period and the pulse width, are inputs to the fuzzy classifier. The rule base in the f... View full abstract»

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  • Conditional Random Fields Feature Subset Selection Based on Genetic Algorithms for Phosphorylation Site Prediction

    Publication Year: 2009, Page(s):7 - 12
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (339 KB) | HTML iconHTML

    Conditional random fields (CRFs) are undirected probabilistic graphical models that were introduced for solving sequence labeling and segmenting problems. CRFs have several advantages compared to other well understood and widely used techniques such as hidden Markov models (HMMs) or maximum entropy Markov models (MEMMs). Being a conditional model, it does not explicitly model the input data sequen... View full abstract»

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  • Hedge Algebra Based Type-2 Fuzzy Logic System and its Application to Predict Survival Time of Myeloma Patients

    Publication Year: 2009, Page(s):13 - 18
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB) | HTML iconHTML

    In this paper, we propose a method to construct hedge algebra based type-2 fuzzy logic systems (HA-T2FLS). In these fuzzy logic systems, the footprints of uncertainty (FOU) of type-2 fuzzy sets are optimized by genetic algorithm and the dispersion of data. The key ingredient of our system is the concept of centroid of hedge algebra based type-2 fuzzy sets. It is used in the type-reducing of the HA... View full abstract»

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  • In?uenza-specific Amino Acid Substitution Model

    Publication Year: 2009, Page(s):19 - 25
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1571 KB) | HTML iconHTML

    Amino acid substitution model is a crucial component in protein sequence comparative systems such as protein sequence similarity searching, protein sequence alignment, and protein phylogenetic analysis. Although several general amino acid substitution models have been estimated from large protein databases, they might not be appropriate for analyzing specific species. In this paper, we apply the m... View full abstract»

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  • A Vietnamese Question Answering System

    Publication Year: 2009, Page(s):26 - 32
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (449 KB) | HTML iconHTML

    Question answering systems aim to produce exact answers to users' questions instead of a list of related documents as used by current search engines. In this paper, we propose an ontology-based Vietnamese question answering system that allows users to express their questions in natural language. To the best of our knowledge, this is the first attempt to enable users to query an ontological knowled... View full abstract»

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  • An Aesthetic Solution for Photo Collection Page Layout

    Publication Year: 2009, Page(s):33 - 38
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (705 KB) | HTML iconHTML

    A "slicing structure" or a hierarchical partition of the display space is an efficient way to present photo collections. However, with different aspect ratios or areas of basic blocks, the prevalent framework creates a number of irregular dead spaces that remain unfilled. In this paper, an efficient solution to reduce or completely eliminate these dead spaces is developed by globally adjusting pos... View full abstract»

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  • Design of Virtual Abdominal Surgery System for the UK's Royal Bournemouth Hospital

    Publication Year: 2009, Page(s):39 - 43
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (282 KB) | HTML iconHTML

    The importance of virtual surgery simulation is recognizing by medical society for its apparent benefits. The design of virtual abdominal surgery system (VASS) for the UK's Royal Bournemouth Hospital, which will be used in interactive surgical training and surgery planning, is provided in this paper. The architecture and main functions of VASS are discussed as well as some extension functions. An ... View full abstract»

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  • Extensible Framework for Distinct Question Answering Agents

    Publication Year: 2009, Page(s):44 - 50
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (419 KB) | HTML iconHTML

    For question answering, the multi-source approach is justifiable especially when different sources provide different types of knowledge. In this paper, a variety of question and answer types are revealed. The key point this paper addresses under the framework of extensible QA is efficient and consonant usage of a number of distinct QA techniques for improving the answer confidence. To prove the ex... View full abstract»

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  • Implementing Adaptive Page Layout Algorithm on Embedded Devices

    Publication Year: 2009, Page(s):51 - 54
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB) | HTML iconHTML

    In many applications, there is a strong need to visualize the data content for interaction with users. Data can be presented as the order blocks to support interactivity and for the personalization of content. Thus, flexible layout techniques are needed to display dynamic information effectively. Several algorithms are proposed and implemented on PC-based systems. This paper investigates the abili... View full abstract»

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  • Using Participatory Paradigm to Learn Human Behaviour

    Publication Year: 2009, Page(s):55 - 60
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (223 KB) | HTML iconHTML

    Since the end of the seventies, the utilization of multi-agents simulations has spread out. A typical use of these simulations concerns the modeling of human behavior. In this application case, a key point to ensure the simulation realism is the definition of the agent behavior. Unfortunately, designing such behavior is often complex. In order to help the definition of human behavior, we propose a... View full abstract»

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  • A New CPT Extension Scheme for High Data Embedding Ratio in Binary Images

    Publication Year: 2009, Page(s):61 - 66
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    In this paper, an extension of CPT scheme (CPTE for short) is introduced. In watermarking area, this is a block-based approach. Given a binary image B, in each block F of a size m×n of B, by CPT scheme, ones can embed r = Round(log2(m.n+1)) bits by changing at most two entries of F. In our CPTE scheme, r = Round(log2(m.n)) + 1 bits can be embedded by changing at most two ent... View full abstract»

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  • Adaptive Noisy Fingerprint Enhancement Based on Orientation Consistency

    Publication Year: 2009, Page(s):67 - 72
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (990 KB) | HTML iconHTML

    Fingerprint image enhancement is an essential preprocessing step in fingerprint recognition application. There are many authors proposed the different fingerprint enhancement methods. Most present well-known methods are base on Gabor filters. However, the present proposed Gabor filters almost can not be efficient in some cases such as: the local orientation changes rapidly and the fingerprint imag... View full abstract»

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  • Detecting Probable Regions of Humans in Still Images Using Raw Edges

    Publication Year: 2009, Page(s):73 - 80
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (862 KB) | HTML iconHTML

    Human detection remains a challenge in computer vision due to highly articulated body postures, viewpoints changes, varying illumination conditions and cluttered background. Because of these difficulties, most of the previous publications often focus only on low-articulated postures, e.g. pedestrians, in still images. In this paper, we propose a new method to detect a human region from still image... View full abstract»

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  • Fast and Realistic 2D Facial Animation Based on Image Warping

    Publication Year: 2009, Page(s):81 - 86
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (469 KB) | HTML iconHTML

    Facial animation has contributed to many fields such as movies, computer games, education and e-commerce. Facial animation is obtained in two ways: pre-calculated animation and real-time animation. Pre-calculated animation often produces very realistic results with very powerful computer systems and is often used for animated movies. Real-time animation often produces lower quality results due to ... View full abstract»

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  • Novel Algorithms to Steganalysis of Uncompressed and Compressed Images

    Publication Year: 2009, Page(s):87 - 92
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (779 KB)

    A large number of commercial steganographic programs use the least significant bit (LSB) embedding as the method of choice for message hiding in 24-bit, 8-bit color images and grayscale images or non-zero DCT coefficients (compressed images - JPEG images) and DWT coefficients of high subbands (compressed images - JPEG2000 images). It is commonly believed that changes to the LSBs of colors (or DCT ... View full abstract»

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  • Real-time Image Processing by Cellular Neural Network Using Reaction-Diffusion Model

    Publication Year: 2009, Page(s):93 - 99
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (622 KB) | HTML iconHTML

    In this paper we propose two architectures of cellular neural network (CNN) for edge detection and segmentation of noisy image based on FitzHugh-Nagumo reaction-diffusion equation. These networks give better results compare to other methods and are capable to real-time applications due to parallel processing nature of the CNN. The mathematical description and nonlinear phenomena analysis of the Fi... View full abstract»

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  • Constructive Generation of 3COL Instances by Embedding Minimal Unsolvable Structures

    Publication Year: 2009, Page(s):100 - 105
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (327 KB) | HTML iconHTML

    Graph colorability, COL, is a typical constraint satisfaction problem to which phase transition phenomena,PTs, are important in the computational complexity of combinatorial search algorithms. PTs are significant and subtle because, in the PT region, extraordinarily hard problem instances are found, which may require exponential-order computational time to solve. To clarify PT mechanism, many stud... View full abstract»

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