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Sweeps is a well-known localization algorithm based on the consistent connection constraints in WSN, and utilizes the concept of finite localization to relax the constraint conditions from trilateration to bilateration. In this paper, we deeply analyze the finite localization in various localization environments, and uniquely localize the finitely localized node without flip ambiguities using iterative...
Randomized gradient-free algorithms through sequential Gaussian smoothing are proposed for distributed optimization over time-varying random network, where the collective goal of agents is to minimize the sum of locally known cost functions. Each agent has access to its own nonsmooth convex function, constrained to a commonly known convex set. Based on sequential Gaussian smoothing of the objective...
3D reconstruction of image sequences is an important application in computer graphics and image processing, especially in biomedical engineering. 3D reconstruction of elastin second harmonic generation (SHG) sequences images can offer much more spatial structure information to improve the diagnostic accuracy significantly. In the paper, we designed a reconstruction pipeline of normal scar samples...
The typical omega-k algorithm used in Circular Synthetic Aperture Radar cylindrical areas reconstruction has the poor computation efficiency and accuracy because of STOLT interpolation process and has high range side lobe because of special circular trajectory compared to linear trajectory. The paper introduced the Non-uniform FFT to the omega-k algorithm replacing STOLT interpolation and range 1D...
Cognitive radio is a new network technology developed in recent years, which focuses on the low utility of spectrum in the wireless communication system. This paper proposes a new algorithm based on the immune clone optimization for unconstrained multi-objective resource allocation in the downlink OFDMA network. We first convert the constraint of data transmission rate proportionality of each user...
Genetic algorithm has better global search ability, so has a wide application prospect in scientific research. In this paper, the improved genetic algorithm is applied to the cloud task scheduling, through simulation experiment on the CloudSim platform, the results show that application of genetic algorithm in task scheduling, the average waiting time is shorter and scheduling costs required lower...
Multi-antenna blind signal separation (BSS) provides a useful method for co-channel mixed signal processing. But the performance of BSS is limited by the condition number of channel matrix in the presence of noise. To overcome this problem, a new BSS algorithm with the aid of lattice reduction (LR) is proposed for synchronous communication systems. Simulation results show that the proposed algorithm...
Recommendation systems try to dig out the most relevant data items according to users' interests by means of data mining and machine learning. Currently, content-based recommendation, collaborative filtering, knowledge-based recommendation are most widely used. However, it is difficult to just use one of them to solve all the problems like cold start, data sparseness, over-fitting etc. together. A...
Self-organizing and load balancing are both important research directions today, but there is not much similar research in network measurement server. In this paper we firstly investigate the overhead proportion of network measurement server by analyzing actual data. And then a model of self-organizing and load balancing server cluster is proposed, along with the estimation algorithms of single integrated...
QoS has become an important measure for web service selection. In this paper, we present an approach which can provide the approximate QoS value for users, and support finding the optimal web service. Firstly, it clusters the users based on location and network condition, then according to the QoS historical statistics of users in the same cluster, uses the linear regression algorithm to predict the...
Based on the Ant Colony Algorithm with clustering processing, a new algorithm is proposed for solving the route optimization of surface mount. According to the actual condition, a new clustering technique for electronic component is provided to simplify the scale of the problem and to reduce the numbers of changing suction mouths; Integrated considering the features of informational hormones updating,...
Recently, as an important way of software applications, web services technology developed rapidly. As many web services provide the same functionality, quality of service (QoS) has become an important criterion for service selection. However, the QoS value provided by service provider is being tested in an ideal runtime, regardless of the effect of the actual load and different service time. This...
Based on the Ant Colony Algorithm, a new algorithm is proposed for solving the route optimization of surface mount. According to the actual condition, a new state transition strategy for choosing the next electronic component is provided to reduce the numbers of changing of suction mouths. Considering the features of informational hormones updating integrally, a new strategy is presented to update...
Collaborative design is one of core processes for networked manufacturing, so how to safely transfer design information in the network has important significance. In order to provide the confidentiality of transmission information on the level of design team in collaborative design system, a new broadcast encryption scheme based on designerpsilas identity is presented. The new scheme is based on broadcast...
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