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Through optimizing the feature matching process by integrating scale-invariant feature transform (SIFT) algorithm with a novel curve matching algorithm based on isohypse and triangle-area representation (TAR), two gaps of SIFT when applied in multimodality image registration are supplied. In this paper, a improved similarity measure (SMLF) based on trajectories generated from Lissajous figures is...
Exploration robots are sent inside collapsed building in search of trapped victims. Once inside, they have to explore the entire maze of obstacles and debris as quickly as possible without missing any accessible area by means of the search algorithm. Comparing the performances of emerging search algorithms against known benchmarks, inside realistic simulated fields is crucial for fast victim localisation...
This paper proposes a simple real-time method for modeling and rendering clouds. The density of cloud is formed by simulating projected motion of cloud particles into 2D plane. And then we render it by using an algorithm that approximates single forward scattering in real-time. This method does not require any preprocess to shade the cloud. By using this method one can create a cloud very quickly...
Fractured vuggy reservoirs have long been observed. A thorough understanding of the variability and fluid flow in fractured vuggy carbonates is lacking. Classical theories of fluid flow are not applicable for highly heterogeneous carbonates. Therefore, it is necessary to conduct research on this type of carbonate which is found in many petroleum reservoirs. Single-phase flow in fractured vuggy media...
The distributed routing protocol is widely used in wireless sensor networks. But it is mainly designed for homogeneous networks and also has the disadvantages of irrationality of choosing cluster head and unbalanced energy consumption of nodes. Through theoretical studies, a new protocol of the cluster multi-hop transmission (CMHT) for heterogeneous sensor networks is proposed. The algorithm selects...
As belt transmission can offer a maximum of versatility as power transmission elements and allow the designer considerable flexibility in selecting a location of driver and driven machinery, and can operate smoothly and silently, therefore it is very necessary to use advanced methods to design the belt transmission. Considering the random character of the design parameters and load-bearing capacity,...
In this paper, the necessary conditions for bilevel multiobjective programming problems are discussed. Assuming the upper-level objective functions in bilevel multiobjective programming problems are differentiable, we give and prove its first-order necessary conditions of the weak (strong) minimizer by applying the concept and properties of the contingent epiderivative for set-valued maps. The obtained...
A general billing method of NGN (new generation network) is analyzed and presented on the basis of comprehensively considering business type (data, voice, video, etc.), call type (local, district, long-distance, etc.), billing mode (based on time-period or traffic), QoS (Quality of Service) level, date and time. The method uses the above-mentioned factors as variables, with a group of formulas to...
In this paper we propose a hybrid of video games and classical outdoor games to address two issues: first the health related concern and second making the game as entertaining as video and computer games. Our proposed solution consists of tangible tiles with the capability of interacting with the user and each other. In addition to this the paper also contributes a genetic algorithm (GA) based approach...
In this paper, we present an adaptive sparse factorization method for even-determined and over-determined blind source separation, where the sources are assumed to be sparse. The objective of our method is to find a demixing matrix to make the output signal as sparse as possible. First, a cost function measuring the sparsity of the output signals is introduced. Then an adaptive algorithm for the learning...
Ontology matching is the key process of semantic interaction and knowledge sharing. It is the basement of the other semantic web application, such as, semantic web-based service, ontology alignment. The purpose of ontology matching is to reuse the ontologies and integrate them in different fields, so as to implement the bigger pool of information and knowledge for the new communication and application...
Currently, OWL-S and WSMO are two popular frameworks that are used to describe semantic Web service. However, due to mainly focus on the description of the functional part, it is difficult for them to select the best services with consideration of quality of service (QoS). To solve this problem, the WSMO specification is extended and an ontology-based meta-model of QoS called WSMO-QoS is presented...
To improve the mobile searching efficiency in 3G mobile telephones, a personalized searching technology based on subject-word customizing model is presented, which is focused on the semantic association among subject words. First, a knowledge bases describing model about subject-word according to ontology is proposed. Second, the article researches to use the meanings of subject words to match combined...
Using of the operator max-min for solving a wide range class of fuzzy linear programming (FLP) is seen in many recant papers, see . The solutions of many FLP problems by using this operator have some basic unwanted errors. In this paper we consider the cause of obtaining these errors.
The heat transfer and stress state of thin slab have a significant impact on quality of slab in the solidification process of continuous casting. A two-dimensional mathematical model of heat transfer, which has considered the characteristics of solidification and heat transfer and the influence of secondary cooling system and equipment on solidification process, has been established to analysis temperature...
The characteristics of embedded systems is analyzed in detail, embedded software testing technology is introduced in host and target testing, a comprehensive embedded software testing process model is put forward with the shortcomings of software testing V-model. Software testing is imported in the stage of requirement, and the performance of the architecture of embedded software system is evaluated,...
Recently, a fast modular multiexponentiation algorithm for computing AXBY (mod N) was proposed. The authors claimed that on average their algorithm only requires to perform 1.306 k modular multiplications (MMs), where k is the bit length of the exponents. This claimed performance is significantly better than all other comparable algorithms, where the best known result by other algorithms achieves...
In traditional simulation calculation of concrete filled steel tubular (CFST) arch bridge, to find out the initial state of the backward analysis is very difficult due to the force-bearing characteristics of CFST arch bridge. Genetic algorithm (GA), as a general-purposed global optimization algorithm, has the disadvantages of the premature phenomenon and poor performance in local optimization. In...
Take advantage of the feature that the energy of the image would gather and spread on four components in the subimage after first-order GHM multi-wavelet transform. Propose an information hiding algorithm based on modifying the direction of color mod vector structure (CMVS) of four GHM first-order sub-images (LL2, LH2, HL2 and HH2). The direction of CMVS represents the information. The maximum change...
Video event detection is an important research topic in semantic video content analysis and it aims to locate the position where events are happening. A rulebased sports video analysis method is proposed in this paper. It combines structural analysis and semantic tagging to generate the video events positions. Experiments based on real-world sports video verify the effectiveness of the proposed method.
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