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The most important task of clustering process is the validation of results obtained from clustering algorithms. There are many cluster validation criteria's but the most commonly used approaches are founded on internal validity indices. There are numerous indices that have been suggested from time to time but there are only some of them that have been popularly used. In this paper we have drawn a...
The proposed antenna design is a triple band microstrip patch antenna using defected ground structures that can support IMT, WLAN and Wi-MAX applications. The antenna design also aims at reduction in the size of the patch and operates at a center frequency of 5.5 GHz. The antenna is designed using a single layer glass epoxy substrate, having dielectric constant εr = 4.4 and loss tangent tan δ =0.02...
This paper introduces a 2-D index map coding of the palette mode in screen content coding extension of the High-Efficiency Video Coding (HEVC SCC) standard to further improve the compression performance. In contrast to the current 1-D search using RUN to represent the length of matched string, we bring the block width and height to describe the arbitrary rectangle shape. We also use the block vector...
When faced with dirty data fused from different sources, modern data management generally trace origins using data provenance technical to repair it fundamentally. Unfortunately, the state-of-art data provenance approaches can only deal with small amount of data using annotation or inverse process. What's worse, these approaches just work under stand-alone mode, resulting in low efficiencies. In this...
Interaction with computers using freehand gestures becomes more and more popular. However, it is hard to make precise inputs by making gestures in air without a physical support. In this paper, we present HorizontalDragger, a new selection technique aimed to improve the selection precision by converting the 2D selection problem into a 1D selection problem. After setting a region of interest in the...
Computer system designers need a deep understanding of end users’ workload in order to arrive at an optimum design. Unfortunately, many end users will not share their software to designers due to the proprietary or confidential nature of their software. Researchers have proposed workload cloning, which is a process of extracting statistics that summarize the behavior of users’ workloads through profiling,...
Smart grid technology is a collection of existing and developing technologies all combined together. This technology is capable of enhancing the efficiency in production and consumption of electricity and improves the reliability and integration of renewable power into the grid. Current grids focus on centralized supply sources. However; the grid's design can be modified and thus enhanced to receive...
Cyberspace is a complicated system of computer, network and other information environments. To evaluate its security defence ability, the offensive and defensive features in cyberspace were discussed in this paper, firstly. Then index system and evaluation model were proposed. Based on analytic hierarchy process method, cyberspace security defence system was decomposed from its ability aspect. Fuzzy...
A compact dual band notched ultra wideband antenna is presented. The antenna is designed to notch two prominent wireless standards namely WLAN (5.15–5.85 GHz) and WiMax (3.3–3.85 GHz). The notched frequency bands are introduced by embedding two 90o clockwise rotated S-shaped stubs in the radiating patch. Insertion of two I-Shaped notches along both sides of the microstrip feed line in the ground plane...
This article presents a simple yet unique health monitoring system especially for the critical or unattended patients who need continuous observation. In this system patients' physical information i.e. body temperature, pulse rate, blood glucose level have been measured using different sensors which are then automatically uploaded to online for observation of their physicians or the relatives who...
Cache compression seeks the benefits of a larger cache with the area and power of a smaller cache. Ideally, a compressed cache increases effective capacity by tightly compacting compressed blocks, has low tag and metadata overheads, and allows fast lookups. Previous compressed cache designs, however, fail to achieve all these goals. In this paper, we propose the Skewed Compressed Cache (SCC), a new...
A caching model is proposed to accelerate the I/O speed between disks and FPGA devices in the conditions of reconfigurable computing. Especially the speed of FPGA processing is much larger than the RAID reading rate. The accelerating strategy is based on LRU-MRU replacement, adding physical address factors at the same time. In the case of two-cache application mode, the accelerating strategy, according...
The notion of Triangular intuitionistic fuzzy numbers (TIFNs) is very useful and interesting in Multiple Attribute Decision Making (MADM) problems for quantifying uncertainty and subjectivity, but the ranking of TIFNs is not an easy problem. The aim of this paper is to propose a new approach to rank TIFNs. The concepts and operational laws of TIFNs are introduced. Then a new approach is developed...
An orthogonal ray graph is a graph such that for each vertex, there exists an axis-parallel rays (closed half-lines) in the plane, and two vertices are adjacent if and only if the corresponding rays intersect. A 2-directional orthogonal ray graph is an orthogonal ray graph such that the corresponding ray of each vertex is a rightward ray or a downward ray. We recently showed in [12] that the weighted...
Remote Direct Memory Access (RDMA) is one of the basic communication fabrics for parallel computers. Its performance is crucial for most parallel workloads. For next generation super computers, the system usually extends to extremely large scale with millions of computation cores connected through the interconnection network. Most interconnection network features out of order packets delivery and...
Mathematical formula with two-dimensional structure has rich meanings. However, when input mathematical formula on the computer, we can only use finite characters on the keyboard to input string of one-dimensional characters. So the size and the position of a lot of signs and symbols can't be input directly using the keyboard. In order to achieve fine input and display of mathematical formula, according...
Women represent more than 50% of the University students both in Europe and the United States. According to this, one might assume that the number of female students in Engineering might have been progressively increasing. But, the under-representation of women in engineering degrees has become a persistent problem. This work presents an analysis of women enrolment in engineering degrees at the Public...
This paper proposed an automatic detection and automatic configuration method of 1553B RT device based on SoC chip. This method made SoC as information dealing unit of each terminal on 1553 bus. Electronic data form was added on the RT device, and a multi-task management procedure was run on the BC device. When a RT device was plugged in or pulled out the 1553 bus, the operation was detected and the...
Information searching over unstructured P2P network like CHORD, KADEMILLA, PASTRY mainly use literal matching words occurrence in documents with those present in users queries. This process of searching does not deal with the semantics and semantic relationships of words. In this paper, we resolve this problem by proposing a Scheme to search information semantically over unstructured P2P network,...
The existing research of distributed provenance storage is at the preliminary stage. Most of the researchers are endeavor to improve the query efficiency of storage solution, whereas, very few people pay attention to the matching problem of provenance and data and the waste of storage space. Two aspects on the problem of provenance storage were proposed in this paper. First one is the relationship...
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