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Similarity is one of the most widely used measures in the field of pattern recognition like Euclidean and Mahalanobis distances. Semi-supervised learning is an effective technique for feature extraction, which can make full use of the unlabeled samples for training. In this paper, we incorporate similarity into semi-supervised learning and propose a novel feature extraction approach, named semi-supervised...
Characteristic points (CPs) detection is still an open problem for the automatic analysis of electrocardiogram (ECG). Past Kalman Filter-Based efforts to extract CPs rely on a locally linearized approximation of the nonlinear ECG dynamical model and fail to detect all CPs accurately for strong noisy ECG. In this study, an improved particle filters-based algorithm is developed to track the dynamical...
Utterance verification is increasingly essential for robustness and better performance of speech recognition systems. In this paper, we use overlapping one-class SVMs to verify utterances and propose a K-means based training algorithm for the overlapping one-class SVMs. The training algorithm first divides the training data into several clusters based on the K-means algorithm and then expands each...
With the development of the network technology, PIM-SMv2 protocol acted as a feasible telecommunication technology, gains wide application and development. This paper discusses the performing principles of PIM-SMv2 protocol in detail, describes how PIM-SMv2 protocol building unidirectional share trees rooted at a Rendezvous Point per group. This paper presented the realization project of IPv6 multicast...
Wi-Fi (Wireless Fidelity) mainly adopts IEEE 802.11g standards. And a binary exponential backoff algorithm is adopted to prevent channel collision, which also introduces reduction of the performance of the network. In this paper, an integrated control mechanism (ICM) is proposed which combines a centrally controlled approach and a distributed access mechanism to control the behavior of the system...
A multi-agent Immune-based Co-Taboo Search Algorithm is proposed to reconfigure distribution network with loss minimization. When the population is initialized, the approach of co-taboo search is applied to seek out initial solutions, and the radial structure constraint ensures initial solutions to be feasibility. So the avoiding of unfeasible solutions greatly reduces the search space, and the search...
According to the characteristics of partial discharge of XLPE cable connector, a method based on support vector machine for Pattern Recognition is proposed in this paper. Six statistical operators, which include skewness, steepness, discharge factor, phase asymmetry, cross-correlation coefficient, and the modified cross-correlation coefficient, are considered as characteristic quantities. This paper...
There are several different features of satellites network compared to ground networks, such as long time delay, large bandwidth delay production (BDP), high error rate, intermittent and asymmetric links, etc. There are abundant research results indicated that it will reduce its performance and waste precious network resource if apply the traditional TCP in the satellites network directly. Transfer...
The techniques of microcontroller and PLD are both important for modern electronic system design. The main idea of MCU coprocessor design based on CPLD is presented. This is a MCU and PLD mixed design mode for electronic system design, which acquires the advantages of both MCU and CPLD, and makes the designed system simple and efficient. The interface between MCU and CPLD is introduced and MCU can...
A new phenol-degrading bacterium with high biodegradation activity and high tolerance of phenol, strain B3, was isolated from the coking wastewater of Coking Plant of Shougang in Beijing. The physic-biochemical characteristics as well as 16SrDNA gene sequence analysis were applied to classify the bacteria and its characteristics of degrading phenol. The results showed that the strain B3 was identified...
This paper investigates fairness and quality of service (QoS) guaranteed user scheduling scheme in multi-user MIMO broadcast channel. The main contribution of this paper is to consider characteristic of video source in user scheduling process. As a result, the proposed scheme can provide fair and satisfactory services to regular data users, while QoS of multimedia consumers is guaranteed. Since video...
Speech recognition is a computationally complexity process and it is suitable for battery powered devices like mobile phones and other personal PDAs. Particularly the parts of mel-scaled frequency cepstrum coefficients (MFCCs) are a process of dimension reduction for reducing resources to accurately describe speech samples. The optimized algorithm was applied to a binary-search-based look-up table...
On the basis of studying the logical relationship between network capability and innovation performance, introducing the knowledge resources acquisition as intermediary variable and using structural equation modeling, the paper has tested the impact of enterprise network capability on knowledge resources acquisition and innovation performance. The results show that network capability of SMEs in Xinjiang,...
In this paper, the author analyzes the factor of the velocity from time to depth, and points out the limitations of the traditional methods. Considering the influence of multi-dimensional speed, The paper gives conceptions of velocity component and its coefficient and composes a function to analyze velocity with multi-factors by using methods of multinomial imitate, Kriging and weighted average method...
Water quality criteria and standard are derived mainly from acute toxicity data of chemicals, and acute toxicity data of chemicals are generally obtained from laboratory experiment. The nature water and experiment dilution water are different. The suspended articulate, humic acid and other factors in nature waters can change the concentrations of chemicals. In this paper, acute toxicity differences...
The oxygen level, acidity and corrosivity of bio-oil were reduced by the extraction and separation of acetic and other carboxylic acids from bio-oil. The removal of carboxylic acid was verified by the increase in pH of the bio-oil from 2.52 to 5.47. The IR spectrum also shows that the carboxyl peak of bio-oil (1600 cm−1–1400cm−1) was much weaker after separation and upgrading. The aqueous phase separated...
Contention-based access has been the key component for 802.11 wireless networks. As the video service is becoming more popular, contention-based access has been the key limiting factor in providing satisfactory quality-of-service (QoS) for video over wireless networks, especially when the data traffic includes both real-time video and other types of traffics. A contention free burst (CFB) scheme has...
Ad hoc networks are of great use from military applications to emergency management, providing the aid to deal with affairs that happen in hostile environment. ZRP is a hybrid routing protocol used in ad hoc networks, which proactively keeps routing information within the routing zone and reactively bordercasting query and message packets to external zones, so that routing in ad hoc networks will...
In this paper, a new form of network technology with wisdom, the wisdom network, is presented, defined and described. It is a collaborative network; it can distinguish, judgment; it can process information resources into knowledge, achieve mastery of knowledge; it can self-manage, self-repair and self-adapt; it can predict the future changes of network environment and people's emotional state. Network...
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