bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research and Construction of Word Vector Extension Structure Based on Context
Authors: Wang Yiying , Ning Hongyun 
Published: November 2019

Abstract
The CBOW (Continuous Bag-of-Words) model is a three-layer forward neural network that predicts the central word vector by the fixed-size window information. In fact, context has a very important role in understanding the meaning of words. However, the context information of the fixed window size is partial and it is not enough to represent the whole context. Due to the polysemy of Chinese words, the same word may have different semantics in different contexts, while the traditional CBOW method ignores the polysemy of words. Therefore, this paper proposes a context-based word vector extension structure for the above problems. The main contents are as follows: (1) Introducing the concept of context vector. The entire sentence in which the target word is located is represented by a vector. (2) Constructing the polysemy storage method of words, adding a contextual list to each word vector, so that the multiple semantics of the words can be effectively distinguished. (3) Based on the word vector extension structure of this paper, a new character vector generation model is proposed, and the effect of the new model and the traditional CBOW model in the news headline similarity sorting task is compared. The experimental results show that the new character vector generation model based on the extension structure of the word vector obtains better result.
The Cultural Exchange between China and Korea under the Network Media Environment
Authors: Hong Sun 
Published: November 2019

Abstract
With the popularization of network media, it has changed the current structure of cultural communication, and also made cross-border cultural exchanges enter the digital era. Cultural soft power has become an important indicator of the development of countries in the world. South Korea is one of the countries representing the strategy of cultural soft power in the world. In the 21st century centered on globalization and informationization, “Korean Current” has brought great development to Korea. At the same time, it has brought great influence to China. This paper takes the cultural exchange between China and Korea as the research object. Firstly, from the perspective of network communication, this paper analyses the cultural trade between China and Korea under the network media environment. Then this paper analyses the influence and function of network media on cross-border cultural exchanges between China and Korea. Finally, some suggestions are put forward.
Identity-Based Parallel Key-Insulated Proxy Signature Without Random Oracles
Authors: JianhongChen  
Published: November 2019

Abstract
Exposure of private keys is the dangerous attack in the public key cryptosystems. We put forward an identity-based parallel key-insulated proxy signature (IBPKIPS) scheme to deal with the problem of key exposure in the identity-based proxy signature system. Our IBPKIPS scheme is secure without random oracles. In the IBPKIPS scheme, we use two different helper keys to renew the temporary private keys. Our IBPKIPS scheme is securer and more flexible than the identity-based proxy signature scheme.
Design and Implementation of Variable Precision Algorithm for Transcendental Functions
Authors: Jiangwei Hao , Jinchen Xu , Shaozhong Guo , Yuanyuan Xia , Dan Liu 
Published: November 2019

Abstract
Mathematical function is an essential part of numerical program, and it is also the key factor that affects the precision and performance of a program. In the design of mathematical functions, in order to satisfy most application scenarios, it is necessary to correctly round and cover the calculated interval as much as possible. But in certain applications, correct rounding and full coverage of definition domain may not be required. Therefore, mathematical functions can be customized according to application requirements to avoid precision waste as well as improve performance. However, manually implementing mathematical functions is a time-consuming and error-prone task. Tools like Metalibm is designed to automatically generate mathematical function code, which is difficult to take advantage of all the mathematical properties of a function and results in the generated code performing slowly than the corresponding mathematical library function. A method of generating variable precision code based on mathematical properties is proposed for the transcendental function in this work. Experiments showed the performance of the proposed method is comparable to Glibc mathematical function.
Solve Constrained Minimum Spanning Tree By cross-entropy (CE) method
Authors: Li Jing , Guo Zaifu 
Published: November 2019

Abstract
Given an undirected graph and nonnegative numbers as weights for each edge, we consider the problem of finding a spanning tree that has lowest total cost with respect to cost weight and has constrained budget with respect to constrains weight [1]. Different from the traditional Lagrangean relaxation method, we proposed a new randomized method for solving the constrained spanning tree problem in this paper. For this newly proposed method every solution found is in the original problem’s feasible region, there is no need to do the hard work to close the gap between the Lagrangean relaxation and the original problem. And the proposed algorithm is very easy to parallelize, can take full advantage of multi-core processors to improve problem solving efficiency. For most optimization algorithms, properly selecting the super parameters have big impact on the algorithm’s practical performance. Through computer numerical simulation, we can see that our algorithm is robust to super parameters.
Wave Superposition Method Applied to Calculate the Radiation Sound Power from a Thin Plate
Authors: Zhu Yong-yong , Peng Jing-hui , Liu Bao 
Published: November 2019

Abstract
A method for calculating the radiation sound power from a thin plate is described using the principle of wave superposition. After getting the velocity of the surface, the method can be used to calculate the strength of radiation source, which can be used to compute the sound power of the corresponding plate without computing the surface pressure. The paper gives an example of a rectangular baffled plate with simply supported boundary. And through comparing the computation result with the analytic result, it is shown that the mention method can reduce the unit and node number while it can ensure high precision without calculating the radiation resistance. Thus the method reduce computing time and improve the efficiency.
The Application of The Decision Tree Algorithm Based on K-means in Employee Turnover Prediction
Authors: Yunmeng Zhang , Chengyi Zhang 
Published: November 2019

Abstract
The employee’s voluntary turnover is one of the most difficult problems for the company. The research uses a human resource data as an example. K-means is used to classify employees, and then each type of the decision tree algorithm is used to conduct prediction and analysis of turnover. After research and analysis according to the experimental results, the two types of employees with high turnover rate are analyzed, and the management is provided with measures to prevent the occurrence of some acts of turnover.
Duality for higher-order (F,η)-invexity multiobjective fractional programming
Authors: Gao Xiaoyan , Yue Dongping , Wang Xuefeng 
Published: November 2019

Abstract
In this paper, we define a new class of generalized higher-order (F,η)-invexity functions, higher-order (F,η)-pseudo invexity functions and higher-order (F,η)-quasi invexity functions. Under the new generalized invexity, the Wolfe dual model for a class of multiobjective fractional programming problem is established, and several weak duality, strong duality and strict converse duality theorems are obtained and proved.
The empirical research of ARMA-GARCH models based on high frequency data
Authors: Guo Youming , Li Tingting 
Published: November 2019

Abstract
Based on high frequency data (5 minutes) and low frequency data (day), this paper models and analyses the Shanghai Stock Exchange Index (SH1A0001). Through the stationarity test and the ARCH effect test, the ARMA (1,1) – GARCH (1,1) model is established. Under the assumption of the error term obeys the Laplace distribution, the estimation is obtained. By the result of forward prediction, it is found that the result of model prediction in high frequency data is better than those in low frequency data.
Establishment and Solution of Mathematical Model for Unconventional Cracks in Multi-stage Fracturing of Horizontal Wells
Authors: Chen Zhanjun , Liu Xuefen , Cao Feng 
Published: November 2019

Abstract
Cracks tend to be asymmetrical during complex fracture processes. In this paper, the mathematical model of well test interpretation of vertical cracks under finite diversion conditions is established by the basic theory of point source function. The interpretation model of multi-stage fracturing unconventional fracture horizontal well test well is obtained by using the principle of pressure drop superposition. The semi-analytical solution of the model is obtained by integral transformation. By numerically discretizing the cracks, combined with the semi-analytical solution and the Duhamei principle, according to the Stehfest numerical inversion method, the bottom hole pressure and pressure derivative curves of the multi-stage fracturing unconventional crack horizontal wells are drawn.
Parameter Estimation of Multi-Frequency Hopping Signals Based on FastICA Algorithm
Authors: Zhang Shengkui , Yao Zhicheng , Fan Zhiliang , Wu Zhihui 
Published: November 2019

Abstract
In order to solve the parameter estimation problem while multi-frequency hopping signal aliasing, this paper proposes a multi-frequency hopping parameter estimation algorithm based on FastICA (Fast Independent Component Analysis). Firstly, the FastICA algorithm is used to blindly separate the observed signals, and then using the short-time Fourier transform to extract the time-frequency ridges from separated signals. After that, wavelet transform is used to detect its singularities, and to estimate the period of each frequency-hopping signal. The simulation results show that the proposed algorithm can blindly separate multiple hopping signals and estimate their hopping periods, with fast convergence speed and strong robustness.
CPHD Tracking Algorithm Based on BPF for Multiple Group Targets
Authors: Guo Yiduo , Gong Jian , Gao Qian 
Published: November 2019

Abstract
Aim to solve the tracking of multiple group targets in strong clutter environment, a rectangular box is used to deal with extension state of group targets. Combining the box particle filter algorithm and the cardinalized probability hypothesis density (CPHD) algorithm, a CPHD algorithm for multiple group targets tracking based on box particle filter (BPF), which is called BPF-CPHD, is proposed in this paper. Compared with the existed algorithm of multiple group targets tracking, the proposed algorithm can improve the tracking accuracy and efficiency greatly. Simulation results confirm the effectiveness of the BPF-CPHD.
Research on Routing Algorithm in Intelligent Meter Reading
Authors: Fangyu Xu , Wang Heng 
Published: November 2019

Abstract
The introduction to broadband micro-power wireless technology in the national network intelligent meter reading system can increase the bandwidth, improve the meter reading performance, and make up for the narrow bandwidth and low speed in narrow-band micro-power wireless and PLC technology. In the smart meter reading network, the generation and maintenance of routes are the key. This paper improves the AODVjr algorithm and improves it from full-network broadcasting to semi-directional directed broadcasting, calculating channel quality based on weight, making it suitable for real-time routing repair in broadband micro-power wireless intelligent meter reading. The improved algorithm minimizes route repair time and routing overhead while ensuring communication success rate. The simulation results show that with the increase of the number of nodes, the semi-directional broadcast has much better performance in routing request packet transmission success rate, average hop count, communication success rate, and route repair delay than the whole network broadcast.
A Novel Method of Radar Antenna Scan Pattern Recognition Using Visibility Graph
Authors: Wan Tao , Fu Xinying , Jiang Kaili , Tang Yanli , Xiong Ying , Tang Bin 
Published: November 2019

Abstract
Radar antenna scan has a great influence on reconnaissance targets, interference decision-making, and electronic support measures. In this paper, we propose a recognition methods of antenna scan pattern based on visibility graph, including circular scan, sector scan, helical scan, raster scan, conical scan, phased array scan, phased array azimuth scan and circular elevation scan. We have mapped the radar scans pattern, the azimuth and elevation curves of various scan pattern and the signal variation of the EW receiver. Moreover, the related features are extracted from the visibility graph and the seven radar scan patterns are classified by five kinds of classifiers. Simulation experiments verify the efficiency of the algorithm.
Hg Content in Jiaozhou Bay from Atmosphere
Authors: Yang Dongfang , Yang Danfeng , Fan Bailing , Su Chunhua , Zhu Sixi 
Published: November 2019

Abstract
In May, August and October of 1991, the variation of Hg content in Jiaozhou Bay was0.006-0.086μg/L, which satisfies the Case I and IISea Water Quality Standard, and there was mild or none pollution in Jiaozhou Bay, specifically, 0.010-0.06μg/L in May, 0.021-0.086μg/L in August and 0.006-0.074μg/L in October, which were all mild pollution. It was mainly transported by ships and wharfs, atmospheric sedimentation and open sea current, 0.06μg/L, 0.074-0.086μg/L and 0.08μg/L, respectively. The modelling diagram was established to display the different paths and contents of Hg in Jiaozhou Bay. Ships and wharfs were mainly mildly polluted by Hg content in May, atmospheric sedimentation and open sea current in August and atmospheric sedimentation in October. It showed that Hg content was transported by human in two ways. On the one hand, it was directly emitted by ships and wharfs to sea, which was low in content and short in period. On the other hand, it was discharged indirectly by human to sea in atmosphere, which was high and long. Thus, it is necessary to pay attention to the transport of Hg content in atmosphere, which was wide in space and long in period.
AHP Based Driving Behavior Evaluation Model
Authors: Zheng Haocheng , Wu Yufan , Wang Zhili , Zhang Zhengyu 
Published: November 2019

Abstract
Driving behavior is one of the most important reasons that affect traffic safety and energy saving. In view of the management problems existing in traffic safety, it is necessary to strengthen the driver’s safety and energy conservation awareness. To this end, based on the driving status information collected by the road transportation industry in the vehicle networking system, we propose a data-driven approach to dig deeper into driving behaviors that affect driving safety and energy efficiency. Among them, we used the quantitative description of idle speed preheating, overspeed, fatigue driving and other series of indicators, and combined with the AHP (Analytic Hierarchy Process) to construct a comprehensive driving safety evaluation index system. Assisting the Ministry of Transportation in managing roads more efficiently and creating a harmonious driving environment via our evaluation model.
Maneuvering Target Tracking in Wireless Sensor Network with Range Only Measurement
Authors: Wang Yufeng , Feng Xinxi 
Published: November 2019

Abstract
In this paper, we consider the condition of range-only measurement, and propose a novel maneuvering target algorithm in wireless sensor network (WSN) that can estimate the position and velocity of the target. Our algorithm combines maximum likelihood estimation and interacting multiple model filtering. Based on range information that the sensors measured, we use maximum likelihood method with constraint information to estimate the position, and then adopt interacting multiple model filtering to further improve the tracking accuracy. Simulation results shows that our algorithm can track maneuvering target effectively in wireless sensor network when we can obtain only range information.
The static friction force in commensurate structures with an asymmetric deformable substrate potential
Authors: Jia Liping , Li Xiangfu , Yin Huamin , Cao Pengfei 
Published: November 2019

Abstract
It is used that a series of interacting atoms subjected in an asymmetric deformable substrate potential. With the increase of external driving force, the system moves from locked state to sliding state. This critical force is also known as depinning force or the maximum static friction force. It has been analyzed for the shape parameter.
Dependence of static friction force on stiffness in a confined chain with the incommensurate and commensurate structrue
Authors: Jia Liping , Li Xiangfu , Yin Huamin , Cao Pengfei 
Published: November 2019

Abstract
It is used that a series of interacting atoms. They are confined between two sinusoidal substrate potentials. When the top substrate is driven by the external driving force, its velocity changes from zero to non-zero. The dependence of the static friction force on the strength is presented for the incommensurate(the spiral mean and the golden mean ) and commensurate structrue. It is found that incommensurate structures is more likely to produce superlubricate phenomenon more than commensurate structures under different stiffness coefficients.
An interval interference reliability evaluation method for structural strength
Authors: Xin T D , Zhao Y L , Duan Y S 
Published: November 2019

Abstract
The structural strength reliability analysis can effectively improve the service life of the structure. Based on the interval method and stress-strength interference method, the structural stress and strength at any time can be converted into the standardized interval. According to the relationship between the critical state function and the standardized interval, the interval interference reliability index η is defined. And then an interval interference evaluation method is proposed for structural strength. The validity of the method is verified through compared with the interval reliability method and the stress-strength interference reliability method. The results show that the proposed method can analysis the structural strength reliability without the parameter distribution form.
The prediction method of supporting force distribution for the refitting vehicle
Authors: Ma Hongfeng , Guo Youwei , Liu Gaojie 
Published: November 2019

Abstract
The supporting force distribution is very important for the vehicle to maintain safety and stability, especially for the heavy-duty refitting vehicle with eccentric load. A simple and generic model to compute the supporting force distribution is essential in the design stage of refitting vehicle, whereas there is little research involving in solving this problem by now. This article presents an efficient and simple method to predict the supporting force of tire (supporting point). Firstly, the model for the vehicle with three or four axles is simplified. Then, the mathematical matrix is established by force equilibrium equation, moment equilibrium equation and deformation compatibility equation. With the known parameters of load, position and dimension, the force of every supporting point can be calculated, and so the supporting force distribution is acquired. Finally, the method of predicting force distribution is utilized to computing the supporting force of a vehicle, and a corresponding experiment is also implemented. The results indicate that the general prediction method to calculate supporting force distribution presented in this paper is accurate and validated in the pre-design stage of the refitting vehicle.
The Influence and Anslysis of Gas Content on the Pressure Fluctuation induced by Cavitating Propeller
Authors: Chen Peng , Ye Jinming , Li Xiang , Tang Zhiyin 
Published: November 2019

Abstract
A ship hull model with all accessories is used to simulate the wake field of the propeller of a twin propeller ship in a large circulating water channel.The similarity of propeller wake field is guaranteed.The influence of air content in water on pressure fluctuation by cavitating propeller is studies.The cavity form of propeller was observed under the condition of different air content in water.The pressure fluctuations induced by cavitating propeller behind ship hull is also measured.The results showed that the air content has a significant influence on the pressure fluctuations. Each measuring points and each order frequency of pressure fluctuations amplitudes increase with the decrease of air content.The main reasons of influence of air content on pressure fluctuations are analyzed.It is proposed that how to set the air content in the model tests.
Geomechanics: historical contributions, current challenges and considerations on development for the new era
Authors: Song Licai , Li Huijun 
Published: November 2019

Abstract
Geomechanics is a marginal subject combining mechanics and geology and thus can be regarded as a branch of mechanics. Geomechanics is a descipline invented by China, and has made outstanding contributions in both theoretical and practical fields fulfilling national key demands. However, under the new situation, it is also faced with both challenges theoretical and practical challenges in fulfilling national needs. In this article, the authors analysed the challenges, and pointed out strategies for develping Geomechanics in the new era: rebuilding confidence in the advantage of Geomechanics, refining and enhancing already existing progresses and deploying future research concertrated on providing Geomechanics solutions to key national needs.
Comparative analysis of Geomechanics and General System Theory, Earth System Science and Geomechanics’ unique advantages in comprehensive survey of natural resources
Authors: Song Licai , Zhang Linyan 
Published: November 2019

Abstract
Under the backgrounds of comprehensive investigation of natural resources, Earth System Science becomes popular. However, it still needs further development. Geomechanics possesses the merits of General System Theory and has endured more than half a century’s practical test. This article aims to analyse the advantage of Geomechanics through comparison of connotations and characteristics of Geomechanics, General System Theory and Earth System Science. By comparison and relationship analyses, the authors pointed out that Geomechanics possesses the theoretical foundation and scientific potential of solving the problems in Earth System Science. Moreover, it can support the “Trinity Comprehensive Investigation and Evaluation” of energy and mineral resources, technical conditions, engineering construction and environmental impact.