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For developing the intuitionistic fuzzy aggregation operators to handle intuitionistic fuzzy multi-criteria fuzzy decision making problems, two popular partial orders are used, one is Atanassov's order and the other is Xu's order. Both of them disregard the following important condition, “a feasible partial order must be not only a totally partial order but also an operation-invariant partial order”...
Voice over Internet Protocol (VoIP) is one of the most important and popular applications for voice communications on the Internet. However, network dynamics of transmission latency and packet loss from public Internet will affect the voice quality of VoIP service. To make sure all participants in large-scale session of conferencing VoIP (CVoIP) have a good perceptual quality, CVoIP needs to pay considerable...
The network technologies and storage devices are developing quickly and the technical devices are inexpensive. Therefore, users have a large amount of storage space, Data Grid can collect distributed storage device to share to other users. In this paper, we discuss several file systems that consist of NFS, SRB, iRODS, Lustre, Gfarm and GPFS-WAN. In Data Grid, we select the specific file system to...
The goal of Next Generation Grid and pervasive computing models are two of the new models that attract a lot attention in last few years. The current trend is to integrate the two domains, called pervasive grid, where mobile devices can access and provide services. Most current researches adopt the concept that services run in a device and migrate with the device. System developers deal with the problems...
Cognitive Radios (CRs) are intelligent mobile systems that can adapt to changing network environments. Adaptivity is achieved through reasoning and learning from past experiences. The conventional case-based reasoning (CBR) method requires a large storage space for the cases; however, embedded system have limited storage space. This work proposes a novel CBR method for improving the storage space...
This study proposes a method for partitioning and classifying complex datasets based on the Rough Set (RS) theory and a modified form of the PBMF-index method. In contrast to the traditional PBMF-index method, the proposed approach, designated as the Huang-index method, partitions the attributes rather than the data and optimizes both the number of clusters and classification accuracy. Overall, the...
Finding the nearest neighbor is one of the most important search operations in the field of information filtering. Aggarwal et al. have proposed SG-table strategy to index user profiles to support finding similar profiles for a query, reducing the number of accessed profiles. However, it can only improve some particular queries because of collisions in the index. Therefore, in this paper, to avoid...
In this paper Instance Neighbor Entropy INE with weighting was proposed to estimate the Class Structure Ambiguity (CSA) of class structures. The main idea of the INE(x)k for one instance x was to compute the weighted entropy of class probability distribution of the top k nearest neighbors of that x. The weighting associated with that entropy was determined according to the inverse of the distance...
Through the world wide web development, web mining becomes an important research topic in database technologies. Web usage mining is to discover useful information of web pages from user navigation patterns recorded in web logs. Web utility mining is not only discovering the frequent web navigation patterns, but also identifying the profit of web pages. For enhancing the web utility mining, this study...
Periodic pattern mining searches useful periodic patterns in time-related datasets. Previous studies mostly concern the synchronous periodic patterns. Since static transaction database cannot provide the dynamic and timely information to obtain timely mining results, this study proposes the Dynamic Periodic Pattern Mining model for progressive databases. This study also presents a novel periodic pattern...
Critical infrastructures require precise and swift response to a local disturbance before it would spread and accumulate. To meet the demand on response time, we propose an intelligent controller with cache design. The controller stores previous decisions and rates them based on a comprehensive evaluation. With those ratings, the controller can intelligently choose the decision leading to the optimum...
This paper presents a simple and fast color style transfer algorithm for video. Based on this proposed algorithm, users can simply select two reference images during the video conversion to complete the color transfer process. Generally speaking, video is a compilation of related images, thus we first split the video into an image sequence, and then perform one-by-one color transfer for each video...
Heterogeneous wireless sensors are widely used to perform a cooperative monitoring task for critical applications. For reducing cost, powerful sensors are activated only when an interesting event is detected, while the other low-cost and error-prone sensors contrarily play an important role in detection. A significant issue arises: How do we provide fault tolerance in such a heterogeneous wireless...
This paper presents a reversible data hiding method which is affine transformation invariant for 3D mesh models. The histogram shift scheme is applied to data embedding by modifying the normalized distances between the model center and vertices. When the 3D model is rotated, uniform scaled, or translated, the embedded data can be correctly extracted and the original 3D model can be reconstructed....
Parallel processing techniques are increasingly found in reconfigurable computing, especially in digital signal processing (DSP) applications. In this paper, we design a parallel reconfigurable computing (PRC) architecture which consists of multiple dynamically reconfigurable computing units. The hidden Markov model (HMM) algorithm is mapped onto the PRC architecture. First, we construct a directed...
Separated from GUI builders, existing GUI building tools for XML are complex systems that duplicate many functions of GUI builders. They are specialized in building GUIs for XML data only. This puts unnecessary burden on developers since an application usually has to handle both XML and non-XML data. In this paper, we propose a solution that separates the XML-to-GUI bindings from the construction...
Adaptivity is one of the key properties of current and future computer systems to make them more easy to operate, more efficient, and better accessible to a wider audience. By extending both the reach and the effectiveness of systems, adaptivity is nowadays a decisive business factor. A system's adaptivity requires a certain knowledge about the human user. The knowledge typically is incomplete and...
Note taking is known to be an essential activity in human learning and the skill of note taking has been identified as a key prerequisite to successful learning. However, in all contemporary systems of technology enhanced learning, the note taking is only marginal. Technological support is usually insufficient and it is not uncommon that learners at a computer take notes with pen and paper. Hypermedia...
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