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Hand-Eye Calibration (HEC) which is necessary in robotics is proposed to determine the relative transformations between the camera and the Inertial Measurement Unit (IMU) in this paper. We know HEC could be degenerated into the problem of solving an optimization issue for the homogeneous matrix composed of rotation and translation. After acquiring an initial estimation with Kronecker product and singular...
Wireless caching enables popular files to be stored at the base stations (BSs) in advance, which has been considered as an efficient way to reduce the service delay and alleviate heavy burdens on the backhaul links. In this paper, we study the BS clustering scheme for the cooperative wireless caching networks (CWCNs) with heterogeneous file preference among users and BSs, and propose the minimum cost...
The past few years have witnessed the dramatic popularity of large-scale social networks where malicious nodes detection is one of the fundamental problems. Most existing works focus on actively detecting malicious nodes by verifying signal correlation or behavior consistency. It may not work well in large-scale social networks since the number of users is extremely large and the difference between...
This paper presents an improved algorithm for multistage portfolio optimization model in fuzzy environment. Firstly, the basic multistage portfolio selection problem is introduced by using multiple criteria, including investment return, transaction cost and risk. Then, a TOPSIS compromised programming (TOPSCP) approach is designed to transform the proposed model into single objective model. Finally,...
The rapid development of cloud computing has raised big concerns over the high energy consumption of modern data centers. To satisfy the ever increasing data traffic needs, the energy consumption of data center network (DCN) also takes a significant proportion. The newly emerging technology, Software Defined Networking (SDN), which allows flexible control of network devices, brings a new opportunity...
In this paper, we consider two types of inverse sorting problems. The first type is an inverse sorting problem under weighted Hamming distance with bound constraints, which can be solved in O(n2) time. The second type is a family of partial inverse sorting problems which we can further divide into two kinds, with free positions and with fixed positions. We show that both types of partial...
Artificial neural networks have gone through a recent rise in popularity, achieving state-of-the-art results in various fields, including image classification, speech recognition, and automated control. Both the performance and computational complexity of such models are heavily dependant on the design of characteristic hyper-parameters (e.g., number of hidden layers, nodes per layer, or choice of...
A double inverted pendulum system is a complex, multi-variable, highly nonlinear, strong coupling, and absolute unstable system. At present, the researchers focus little attention on the timecost optimization of swing up the double inverted pendulum from its downward position to the inverted position. Through the rational dynamics analysis of the inverted pendulum system, the optimization model of...
The fusion of images captured from multi-modality sensors has been studied for many years. It is aiming at combining multiple sources together to maximize the meaningful information and reduce the redundancy. Meanwhile, sparse representation of images has been attracting more and more attentions. It has been effectively utilized on image reconstruction, image de-noising, super-resolution and others...
The rapid increasing of similar Web services in the Internet, as well as enhancements of requirements for quality of service (QoS) by users, had created great challenges for Web service composition. We propose an optimized method for Web service composition on the basis of semantic Web. Web service is described by fuzzy Horn clause, and a QoS-oriented Web service composition model is built by fuzzy...
Increasing the efficiency and accuracy on dynamic optimization choosing of Web service composition is the key point of researching on service composition. In allusion to 1 the way that we use a shortest path based on a weighted tree to describe the Web service composition question, users can set the Qos attribute weight to translate their preference and satisfaction into certain constraints on service...
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