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Data association, which could be categorized into offline approaches and the online counterparts, is a crucial part of a multi-object tracker in the tracking-by-detection framework. On the one hand, classical offline data association methods exploit all the video data and have high computation cost, which makes them unscalable to long-term offline video data. On the other hand, online approaches have...
In this paper, we propose a power control algorithm dedicated for machine type communications (MTC) in future non-orthogonal multiple access (NOMA) networks employing game theory. In MTC networks, communication reliability should be considered prior to power consumption or energy efficiency. Once the reliability is satisfied, discussions about power consumption makes sense. We build a cost function...
In this paper, we design the low-complexity tree search-based detectors for generalized spatial modulation (GSM) aided single carrier (SC) systems over dispersive channels. Specifically, we commence with a brief review of the existing detection algorithms and then extend the sphere decoding-aided (SD) tree search algorithms designed for flat fading channels to GSM-aided SC systems. Moreover, a pair...
Adaptive differential evolution algorithm based on gradient and polar coordinates search strategies (ADE) is proposed in this paper. In order to improve the precision of solutions, gradient and polar coordinates search strategies are introduced. Since the gradient search strategy generates offsprings using the derivative definition, it will accelerate the convergence speed. Polar coordinates search...
Based on the use of multi-beams, high throughput satellites (HTSs) provide high data rates to a large number of users. In this context, the distribution of frequency resources among multi-beams plays an important role. This is because unsuitable distributions might cause the wastage or the starvation of frequencies and bring about low throughput rates. This paper proposes a solution to mitigate the...
The virtual network embedding problem is mainly concerned with assigning virtual networks onto the substrate network reasonably and efficiently. This paper proposes a virtual network mapping algorithm combining greedy virtual node mapping and virtual link mapping based on the weighted multi-commodity flow (WMCF). The cost coefficient of the multi-commodity flow problem is weighted by the ratio of...
This paper discusses policy conflict resolution for attribute-based access control in the distributed computing environment, proposes a conflict resolution algorithm based on policy condition attribute significance. The algorithm evaluates policy condition attribute significance by using Bayesian formula and conditional probability formula through policy condition attributes usage record, gets the...
In this paper, we proposed an automatic evaluation method for Chinese handwritten ability, research on information card design, algorithms of image processing and the index computation of automatic evaluation. Image processing includes distortions detecting, stretching detecting, image de-skewing and image enhancement, the index computation of automatic evaluation based on features of global character,...
This paper makes a study on fast skew angle detection for document images. Given a document image and return the skew angle. First this algorithm computes the horizontal gradient image by the input image and then merges the characters area in the text line block, to get the valid text line by non-text area filtering, at last, statistic the text line characteristics to estimate the input image skew...
State-of-the-art deformable registration algorithms do not perform as well with FA sequences because they are designed to deal with changes of content appearance (e.g., due to different sensors imaging the same organs) but not with content changes, which occur throughout a FA sequence as different portions or the vascular structure are visible (perfused) in different frames. This paper presents a...
This paper described Phase-amplitude control methods, based on fix step-size (FSS-LMS) and variable step-size (VSS-LMS) in ALINE neural network control respectively, were compared and analyzed on the simulated hydro-pneumatic suspension control system. The test results indicated that phase-amplitude control method could improve the sine signal reappeared accuracy in limited range, efficiently realize...
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