While there are many ongoing research efforts for Denial-of-Service (DoS) attacks in the general Internet environment, there is insufficient research on voice networks. In this paper, we present the design and evaluation of a SIP-TRW algorithm for ...

This paper presents the operation composition method based on Service Component Architecture (SCA). Applying semantic factors to this method has revealed the automatically discovered and composited operations corresponding to user demands. We first ...

Although distributed middleware technologies such as UPnP, Jini, HAVi and DPWS generally feature the same goals, many different factors are also isolated from each other. This paper outlines a self-organizing two-way DPWS adaptor which aims to provide ...

We propose in this paper Actor Petri net Model for designing scientific workflow applications that are characterized by heterogeneous data and intensive computing. Based on many other workflow representation models (such as Actor Network, a series of ...

With the fast development of e-commerce, a large number variety of information existed on the Internet. Many researches tend to design a recommender system for assisting users to search the information that they have interested over the internet. The ...

In this paper, we propose a method to hide secret data in parity check bits. In the data embedding phase, the method first takes 4 bits from the cover data and 3 bits from the secret data. The 3-bit secret data are inserted into appropriate positions ...

This paper proposes a reversible data-embedding scheme that improves on Kieu and Chang's method by increasing the embedding capacity measured by bits per pixel (bpp) while maintaining high image quality. The embedding procedure of the proposed method ...

Geographic information system (GIS) is traditionally used with desktop computers. The development of embedded, wireless, and positioning technologies have opened possibilities to apply GIS in new application areas and conditions. In this research area ...

In this paper, we propose a reversible data hiding technology based on a Vector Quantization (VQ) index table. To improve the hiding capacity, every VQ image has its own corresponding codebook in which the index sequence is reorganized according to the ...