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Computational Intelligence and Multimedia Applications, 1999. ICCIMA '99. Proceedings. Third International Conference on

Date 23-26 Sept. 1999

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Displaying Results 1 - 25 of 95
  • Proceedings Third International Conference on Computational Intelligence and Multimedia Applications. ICCIMA'99 (Cat. No.PR00300)

    Publication Year: 1999
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    Freely Available from IEEE
  • Author index

    Publication Year: 1999, Page(s):499 - 501
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    Freely Available from IEEE
  • A training scheme for pattern classification using multi-layer feed-forward neural networks

    Publication Year: 1999, Page(s):307 - 311
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    This study highlights the subject of weight initialization in multi-layer feed-forward networks. Training data is analyzed and the notion of critical point is introduced for determining the initial weights for input to hidden layer synaptic connections. The proposed method has been applied to artificial data. Experimental results show that the proposed method takes almost half the training time re... View full abstract»

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  • Supporting cooperative work with Viceroy

    Publication Year: 1999, Page(s):437 - 441
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (32 KB)

    Many existing CSCW (computer supported cooperative work) applications used isolated tools which tend to ignore the existence of others and can't provide detailed state information of cooperative work, although they show a positive impact on overall productivity in cooperative work. To fully make useful of existing CSCW applications and overcome their deficiencies, this paper proposes, defines, des... View full abstract»

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  • Network service selection for distributed multimedia applications

    Publication Year: 1999, Page(s):388 - 392
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB)

    An important question in the development of system support for distributed multimedia is the type of network service offered to applications. This paper compares two network service disciplines: weighted fair queueing (WFQ) and non-preemptive earliest deadline first (NEDF). We show that, for a broad class of high-bandwidth distributed multimedia applications, WFQ outperforms NEDF in terms of netwo... View full abstract»

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  • Adaptive processing of data structures

    Publication Year: 1999, Page(s): 2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4 KB)

    First Page of the Article
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  • Specifying aspects of multimedia in LOTOS

    Publication Year: 1999, Page(s):326 - 330
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (40 KB)

    The formal specification language LOTOS provides a model of systems where the temporal ordering of actions is specified. LOTOS typically does not deal with the specific times at when actions can occur. Most approaches for specifying real time systems in LOTOS have either extended the language, e.g. with timing aspects, or used the language in conjunction with a temporal logic. We argue that such a... View full abstract»

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  • Hybrid video system supporting content-based retrieval

    Publication Year: 1999, Page(s):258 - 262
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    The article suggests a Hybrid Video System (HVS) which supports the semantic retrieval of all types of users and the similarity retrieval of indefinitely formed and very large amounts of video data. The HVS divides a set of video data into video documents, sequences, scenes and objects to model the metadata and suggests a Three layered Hybrid Object-oriented Metadata Model (THOMM) which is compose... View full abstract»

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  • On speed optimization of MPEG-4 decoder for real-time multimedia applications

    Publication Year: 1999, Page(s):399 - 402
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (20 KB)

    In this paper, we present several speed optimizing techniques in our MPEG-4 video decoder for real-time multimedia applications. Accessor functions and a simple data structure are used. The use of pointers is minimized. Fast algorithms and fixed-point arithmetic are applied whenever possible. Memory accesses are kept to the minimum. Our results show that our software can decode and display MPEG-4 ... View full abstract»

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  • Vibratory tactile display: a fractal Brownian approach

    Publication Year: 1999, Page(s):442 - 446
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (52 KB)

    This paper deals with the formulation of a height profile model for a vibratory tactile display unit using the concept of fractal dimensions and fractal Brownian motion. The paper discusses, in brief, the theory of fractals and the imaging process. The fractal dimension from image data is calculated using second-order statistics and the Fourier power spectrum. The image fractal model is then used ... View full abstract»

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  • A survey on supervised learning by evolving multi-layer perceptrons

    Publication Year: 1999, Page(s):122 - 126
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24 KB)

    This paper provides a guide to evolving-architecture neural networks for a beginner in multi-layer perceptrons. All the quoted methods aim at automatically fitting a neural network architecture to a particular classification task. Several kinds of evolving architectures are exposed. Some neural networks start small and become bigger and bigger during the learning, whereas others start over-dimensi... View full abstract»

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  • Logical calculi of rough-set granules in problems of approximate synthesis in distributed systems

    Publication Year: 1999, Page(s):223 - 227
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    A logical calculus of granules is presented. This calculus provides a framework for the approximate synthesis of solutions under uncertainty by distributed systems. The presented calculus is based on rough mereology, a paradigm for approximate reasoning developed by the authors which blends together and relies on the mereology ideas of St. Lesniewski (see L. Polkowski and A. Skowron, Intell. Autom... View full abstract»

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  • A segmental time-alignment technique for text-speech synchronization

    Publication Year: 1999, Page(s):408 - 412
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (92 KB)

    The bimodal acoustic-visual effect is of extreme importance in human face-to-face communication; it has been broadly investigated and the improvement in understanding when visual cues are integrated with speech has been clearly demonstrated, with particular emphasis in noisy environments. In this paper, we propose a novel synchronization procedure for speech and text, consisting of a neural networ... View full abstract»

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  • A formal model for software evolution

    Publication Year: 1999, Page(s):143 - 147
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (28 KB)

    Proposes a formal model with mathematical definitions to represent and explore the complicated hierarchy and multidimensional structure of software evolution. This formalization of software evolution is based on a hypergraph and extended to an evolutionary hypergraph with different software evolution objects. In an evolutionary hypergraph, a top-level software evolution step can be refined into se... View full abstract»

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  • On generalisation of machine learning with neural-evolutionary computations

    Publication Year: 1999, Page(s):112 - 116
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (36 KB)

    Generalisation is a non-trivial problem in machine learning and more so with neural networks which have the capabilities of inducing varying degrees of freedom. It is influenced by many factors in network design, such as network size, initial conditions, learning rate, weight decay factor, pruning algorithms, and many more. In spite of continuous research efforts, we could not arrive at a practica... View full abstract»

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  • Combining CBR and GA for designing FPGAs

    Publication Year: 1999, Page(s):133 - 137
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (36 KB)

    Field programmable gate arrays (FPGAs) are a form of user-programmable logic devices that contain an array of logic gates. As there is no complete set of techniques for designing any FPGA program, researchers have been successful in evolving program designs using genetic algorithms (GAs). However, using GAs to generate software programs for FPGAs faces two main problems, namely scaling and errors.... View full abstract»

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  • Functional decomposition for FPGA based designs: a weighted graph approach for encoding of compatible classes

    Publication Year: 1999, Page(s):217 - 222
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (56 KB)

    Functional decomposition plays an important role in the design of FPGA-based circuits because their structure only imposes constraints on the number of inputs. Several decomposition techniques have been developed, and they show better area and level optimization. In a multi-level decomposition method, the coding of the decomposed function is an important factor that influences further decompositio... View full abstract»

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  • Specifying multimedia configurations in Z

    Publication Year: 1999, Page(s):331 - 335
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    In this paper we illustrate how the formal specification language Z can be used to reason about the temporal and throughput constraints associated with multimedia flows of information. In particular we show how it is possible to specify issues related to maximum delays, throughputs and jitter of information flows and how control of these flows can be achieved. What makes out work particularly inte... View full abstract»

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  • Genetic algorithms with adaptive probabilities of operator selection

    Publication Year: 1999, Page(s):464 - 468
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    In this paper we propose a new method of tuning the probabilities of the genetic operators. We assume that every member of the optimized population conducts his own ranking of genetic operator qualities. This ranking becomes a base to compute the probabilities of appearance and execution of genetic operators. This set of probabilities is a base of experience of every individual and according to th... View full abstract»

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  • An image understanding system for various images based on multi-agent architecture

    Publication Year: 1999, Page(s):186 - 190
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    An image understanding system for real world images which has an ability to recognize various kinds of images is proposed. We propose a multi-agent architecture to integrate and cooperate object recognition modules for individual target objects. In our system, object candidates generated by different agents are integrated not only on the evaluations by each modules themselves but also on spatial r... View full abstract»

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  • Use of transforms for indexing in audio databases

    Publication Year: 1999, Page(s):278 - 284
    Cited by:  Papers (1)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1116 KB)

    The phenomenal increases in the amounts of audio data being generated, processed and used in several computer applications have necessitated the development of audio database systems with newer features, such as content-based queries and similarity searches, to manage and use such data. Fast and accurate retrieval for content-based queries is crucial in order for such systems to be useful. Efficie... View full abstract»

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  • A genetic algorithm for the cryptanalysis of Chor-Rivest knapsack public key cryptosystem (PKC)

    Publication Year: 1999, Page(s):81 - 85
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    We develop a genetic algorithm as a method for cryptanalysing the Chor-Rivest knapsack public key cryptosystem (PKC) (B. Chor and R.L. Rivest, 1988). As far as we know there is no feasible attack known on it (A.J. Menezes, 1997). The results show how the algorithm is effectively used to break this scheme by examining a very small fraction of the space of possible solutions. The algorithm found the... View full abstract»

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  • Using Kohonen map for the placement of regular VLSI designs

    Publication Year: 1999, Page(s):65 - 69
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (32 KB)

    The paper presents the formulation of a VLSI placement problem for regular designs (gate arrays) using a Kohonen self-organizing map. An abstract specification of the design is converted to a set of appropriate input vectors using a mathematical method, called “multidimensional scaling”. These vectors which have, in general, higher dimensionality, are fed to the self-organizing map at ... View full abstract»

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  • Enhancing the beauty of fractals

    Publication Year: 1999, Page(s):454 - 458
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (32 KB)

    Fractals are famous for their beauty and fractal techniques are employed for smaller storage space requirements when storing images. Fractal geometry has gradually established its importance in the study of image characteristics. The concept of multiple reduction copy machine (MRCM) has been used for creating fractals for a long time. A modified MRCM has been designed to generate fractal patterns.... View full abstract»

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  • Cache transparency in VOD systems: taking advantage of viewers' flexibility

    Publication Year: 1999, Page(s):420 - 425
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (52 KB)

    The architecture of the Berkeley distributed hierarchical video-on-demand (VOD) system consists of continuous media servers basically standing as a cache between the archive servers and the clients. In this paper, we first describe the features of a new cache management algorithm called AVBB (Adaptive Viewers, Bias-Based). With the firm belief that some video viewers can settle for a video other t... View full abstract»

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