This paper presents an efficient and low-cost solution to apply digital watermarking technology to online multimedia distribution and commerce. This solution consists of a hierarchical watermarking scheme and two types of automatic low-cost watermark enforcement tools: watermark monitor and watermark tracking agent.

The video segmentation problem can be regarded as a problem of detecting the fundamental video units (shots). Due to different ways of linking two consecutive shots this task turns out to be difficult. In this work, we propose a method to detect a type of gradual transition, the fade, by image segmentation tools instead of using dissimilarity measures or mathematical models. Firstly, the video ...

The extended cyclic codes of length p” , p a prime, which are invariant under the aff ine-group acting on ffpm, are called affine-invariant codes. Following recent results of Berger, we present the formal expression of the permutat ion group of these codes. Afterwards we give several tools in order to determine effectively the group of a given code or of some infinite class of codes. W e next p...

To study human aging is an enormous challenge. The complexity of the aging phenotype and the near impossibility of studying aging directly in humans oblige researchers to resort to models and extrapolations. Computational approaches offer a powerful set of tools to study human aging. In one direction we have data-mining methods, from comparative genomics to DNA microarrays, to retrieve informat...

The video segmentation problem can be regarded as a problem of detecting the fundamental video units (shots). Due to different ways of linking two consecutive shots this task turns out to be difficult. In this work, we propose a method to detect both cuts and gradual transitions by image segmentation tools instead of using dissimilarity measures or mathematical models. Firstly, the video is tra...

The main goal of this paper is to provide an overview of the rapidly developing area of software agents serving as a reference point to a large body of literature and to present the key concepts of software agent technology, especially agent languages, tools and platforms. Special attention is paid to significant languages designed and developed in order to support implementation of agent-based...

as the e-commerce sites are being more secure and reliable in recent years and the number of transactions is rising rapidly, parallelism can help us to reduce response time and increase throughput for e-commerce transactions. this paper will investigate parallelism in on-line transaction processing. it aims to specify those aspects of e-commerce transactions that would profit from parallel proc...

Many popular e-commerce sites provide decision support tools to assist potential customers. Preliminary research indicates that web usage mining analyses may help to assess the utility of these tools and highlight possible areas for improvement. This paper describes a new procedure for assessing the utility of web-based support tools using techniques in rough set theory. The authors evaluated t...