In this paper we present a classifier called bi-density twin support vector machines (BDTWSVMs) for data classification. In the training stage, BDTWSVMs first compute the relative density degrees for all training points using the intra-class graph whose weights are determined by a local scaling heuristic strategy, then optimize a pair of nonparallel hyperplanes through two smaller sized support vector machine (SVM)-typed problems. In the prediction stage, BDTWSVMs assign to the class label depending on the kernel density degree-based distances from each test point to the two hyperplanes. BDTWSVMs not only inherit good properties from twin support vector machines (TWSVMs) but also give good description for data points. The experimental results on toy as well as publicly available datasets indicate that BDTWSVMs compare favorably with classical SVMs and TWSVMs in terms of generalization
标签： recognition Bi-density machines support pattern vector twin for
上传时间： 2019-06-09
上传用户：lyaiqing
使用基本的SVM 模型对MNIST数据集分类
上传时间： 2019-10-25
上传用户：tony123456789
使用Eigen库的目的是，将Matlab写的，LPCC和MFCC两种声音识别算法，十字形声阵列的MUSIC定位算法，和SVM分类器算法，转换成C++然后移植到到ARM处理器上（操作系统级上的并不是裸机）。而使用Eigen库的原因就是，其能够在编译时进一步优化，而且只需导入头文件即可进行调用，而不像其他的一些库需要安装那么麻烦。
上传时间： 2019-11-26
上传用户：perfectOR05
The surge of mobile data traffic forces network operators to cope with capacity shortage. The deployment of small cells in 5G networks is meant to reduce latency, backhaul traffic and increase radio access capacity. In this context, mobile edge computing technology will be used to manage dedicated cache space in the radio access network. Thus, mobile network operators will be able to provision OTT content providers with new caching services to enhance the quality of experience of their customers on the move.
上传时间： 2020-05-26
上传用户：shancjb
Traditional modulation methods adopted by space agencies for transmit- ting telecommand and telemetry data have incorporated subcarriers as a sim- ple means of separating different data types as well ensuring no overlap between the radio frequency (RF) carrier and the modulated data’s frequency spectra.
标签： Bandwidth-Efficient Modulation Digital
上传时间： 2020-05-26
上传用户：shancjb
Employing multiple transmit and receive antennas, namely using multi-input multi-output (MIMO) systems, has proven to be a major breakthrough in providing reliable wireless communication links. Since their invention in the mid-1990s, transmit diversity, achieved through space-time coding, and spatial multiplexing schemes have been the focus of much research in the area of wireless communications.
标签： Communication Systems Coding MIMO for
上传时间： 2020-05-26
上传用户：shancjb
How will future generations refer to our times? Will it be known as one of space exploration, genetics, atomic energy or computing? Possibly, but I think it is more likely to be ‘The age of communications’. Not since printed books and newspapers were first introduced has there been such an explosion of communication. None of this technology could function without modern cables and, just as important, competent installers.
标签： Applications Cabling Copper
上传时间： 2020-05-27
上传用户：shancjb
At the time of writing, and to an extent never seen before, there is an expectation that almost any information or service that is available through communication systems in the office or home will be available wherever the user happens to be. This is placing incredible demands on wireless communications and has been the driver for the gen- esis and deployment of three generations of cellular systems in the space of 20 years.
标签： Deploying Wireless Networks
上传时间： 2020-05-27
上传用户：shancjb
The objective of this book is to allow the reader to predict the received signal power produced by a particular radio transmitter. The first two chapters examine propagation in free space for point-to-point and point-to-area transmission, respectively. This is combined with a dis- cussion regarding the characteristics of antennas for various purposes. In chapter 3, the effect of obstacles, whether buildings or mountains, is discussed and analytical methods, whereby the strength of a signal is the shadow of an obstacle can be predicted, are presented.
标签： Propagation Essentials Radio Wave of
上传时间： 2020-05-27
上传用户：shancjb
When we started thinking about writing the first edition of this book a few years ago, we had been working together for more than five years on the borderline between propagation and signal processing. Therefore, it is not surprising that this book deals with propagation models and design tools for MIMO wireless communications. Yet, this book should constitute more than a simple combination of these two domains. It hopefully conveys our integrated understanding of MIMO, which results from endless controversial discussions on various multi-antenna related issues, as well as various interactions with numerous colleagues. Obviously, this area of technology is so large that it is beyond our aim to cover all aspects in details. Rather, our goal is to provide researchers, R&D engineers and graduate students with a comprehensive coverage of radio propagation models and space–time signal processing techniques for multi-antenna, multi-user and multi-cell networks.
上传时间： 2020-05-28
上传用户：shancjb
