Proceedings of the 2018 International Conference on Computer Modeling, Simulation and Algorithm (CMSA 2018)

Session: Applied Mathematics, Statistics and Analysis

27 articles
Proceedings Article

Research on Attitude Representations and Attitude Differential Equations

Xiaoyu Wang, Xiaofeng He
Attitude estimation is used to determine the spatial orientation of an object relative to a reference coordinate frame, or to provide a method for vector conversion between the reference coordinate frame and the target coordinate frame. In this paper, after the definitions of 4 kinds of attitude representations,...
Proceedings Article

The Bidding Audit Method Based on Big Data

Moji Wei, Zijiang Yang, Shiwei Zhu, Xianyi Li
With the issue of a series of important laws and regulations, the police level for violation prevention of bidding has been more and more mature. However, due to lacking effective technologies, supervision of concrete flow has become the weakness of the whole system. To perfect bidding system and enhance...
Proceedings Article

3D Geometrical Solutions for Toroidal LPG Fuel Tanks Used in Automotive Industry

Mihai Ţălu, Ştefan Ţălu
This study aims to investigate various geometrical solutions of toroidal LPG (Liquefied Petroleum Gas) fuel tanks used in automotive industry, using CAD parametric modeling. The CAD modeling has a potential impact required to develop and to implement new mathematical models on the engineering design...
Proceedings Article

Numerical Analysis of the Pressure Drop in Industrial Pipes with Non-Uniform Roughness and Helical Ribs in the Case of Laminar Flow

Mihai Ţălu, Ştefan Ţălu, Daniela Vintilă, Laura Grigorie
This study describes a simple and easy-to-implement method to determine the pressure drop in industrial pipes with non-uniform roughness and helical ribs in the case of laminar flow. The effects of the pipe geometrical parameters on the laminar flow regime are discussed. The proposed method of solution...
Proceedings Article

Research on the Calibration System of Noncontact Electrostatic Voltmeter by Using the Finite Element Analysis

Jieyu Liu, Wenzuo Ma, Rundan Zhang, Yidan Zhang, Jianning He
Noncontact measurement of electrostatic voltage is required to study the charges in HVDC transmission system. The calibration platform of noncontact electrostatic voltmeter is studied. The electric field near the measurement probe is calculated by FEM. Based on the calculation, the edge effect and applied...
Proceedings Article

The Study on Predicting Respiratory Motion with Support Vector Regression

Lei Tong, Chaomin Chen, Kailian Kang, Zihai Xu
Objective: The target is usually tracked in real time at thoracic and abdominal radiotherapy due to the effect of respiratory motion, the prediction is necessary to compensate the system latency. Method: This paper proposed a prediction method based on support vector regression, it dynamically updates...
Proceedings Article

Estimation and Application of Skew-normal Data for Generalized Linear Regression

Wenjun Lyu, Zhaoqing Feng
Generalized linear models are generally applied in statistical researches. Since a lot of real data reveal nonnormality especially skew-normality, new assumption is proposed that error terms follow skew-normal distribution to increase the adaptability of GLMs, which forms GLMSNs. To estimate the parameters...
Proceedings Article

Intersection Measurement for Rotatable Arc Guideway System

Kaixin Cui, Shunqing Ren, Jinru Yuan, Yikang Liu
In order to measure the intersection of rotatable arc guideway system, namely, the distance from the center determined by the rotatable arc guideway to the axis line of rotation, a crosshair target was fixed on the slider sliding along the arc guideway, and a theodolite was installed in the front of...
Proceedings Article

A Real-Time Method to Measure the Deviation of Deep Hole

Junqiang Liu, Fujia Wu, Xiaobing Gao, Ruicheng Li
The deviation of deep hole’s axis is measured in real-time machining process by using ultrasonic thickness measurement method. A ultrasonic device is designed using 3-points circle method, the polar parameter model of measurement objects is built and the function relationship between object and measured...
Proceedings Article

Teeth Category Classification via Hu Moment Invariant and Extreme Learning Machine

Zhi Li, Ting Guo, Fangzhou Bao, Rodney Payne
To improve the computer-assisted diagnosis and decision in dentistry, we tested a new method combining Hu moment invariant (HMI) method and extreme learning machine (ELM) to implement the teeth classification in cross-section image of Cone Beam Computed Tomography (CBCT). 160 images were analyzed and...
Proceedings Article

Effect of Wave Group Interactions on the Distribution of Wave Height

Yongquan Li
The study was made on the effect of wave group interaction on the distribution of wave height. The interaction of two wave groups was studied on the basis of coupled nonlinear Schrödinger equations. We found that wave group interaction may cause the deviation of wave height distribution from the result...
Proceedings Article

Research on Drift Path Prediction Technology of Ships

Dongdong An, Tianchi Zhang, Jing Zhang, Zhimin Liu, Jiasen Chen
In order to improve the prediction fitting degree of the existing method to predict the drift path of the ship, the particle reloading simulation method was proposed to predict the drift path from the aspect of segment prediction. Particle reloading simulation method divides the drift time into multiple...
Proceedings Article

Location-Routing Problem under Emergency with Simultaneous Relief Delivery and Victim Evacuation

Ruoqi Du, Hong Zhou
The location-routing problem under emergency with simultaneous relief materials delivery and victim evacuation is studied and modeled. The number of victims is assumed ambiguous, risk preference of the decision maker is considered, and mixed transportation of relief and victims is allowed. A chance-constrained...
Proceedings Article

Method of AUV Heuristic Route Planning Based on Cost Estimation of Visibility

Jiaping Song, Xing Liu, Aigen Huang, Yibo Liu, Haiqin Wan
This paper provides a heuristic route planning method based on the cost estimation of visibility through which Autonomous Underwater Vehicle (AUV) can voyage safely and efficiently in complex Marine application environment. The optimized model of AUV is set up and deduced in this paper. Then the constraints...
Proceedings Article

Research on the Energy Saving and Emission Reduction Path of Transporting Ships

Hongbin Wei
As an important means of water transportation, ships bear domestic and international trade and transportation, and consume a large amount of fuel every year. It is imperative to improve ship energy efficiency and reduce energy consumption. Describes the international situation of ship energy save and...
Proceedings Article

Routing Problem with Multiple Transportation Modes Considering Road Damage

Weibo Zheng, Hong Zhou
A routing model with multiple transportation modes considering road damage is developed, and a two-stage variable neighborhood search algorithm is proposed for solving. The logistic function is used to describe the possible loss of a customer due to waiting, and the choice of transport mode depends on...
Proceedings Article

Forecasting on China’s Total Water Demand in 2018

Xiuli Liu
To forecast total water demand in advance is practically important for water supply planning. The paper first made impacting factors analysis of the total water demand in China. Then established three models for the total water demand forecasting by multiple regression analysis. The fitting precision...
Proceedings Article

The Statistical Properties of the Probabilistic Distributions Generated by Gamma Statistics

Oleg V. Chernoyarov, Alexandra V. Salnikova, Vladimir I. Kostylev
We show that hyperexponential and hyper-Erlang distributions reproduce themselves by composition. We find new formulas for probability densities and distribution functions of Gamma statistics sums.
Proceedings Article

Research on Fault Diagnosis of a Certain Launching Vehicle Based on Multi Attribute Decision Making Theory

Sai Wang, Jiping Cao, Rui Huang, Ning Lei
A fault tree diagnosis method for chassis braking system of launching vehicle is proposed in this paper based on multiple attribute decision making theory. Aiming at the limitation of the traditional fault tree analysis method of poor accuracy and low efficiency, this paper uses TOPSIS method to determine...
Proceedings Article

Research on the Determinants of Peasants’Land Mortgage in China

Ji Luo, Ying Wang, Fan He
Based on the survey data of Peasants in China, the bivariate Probit model is constructed to analyze the factors affecting Peasants’ land mortgage Determinants. The results show that the willingness of Peasants' land mortgage is higher, and the education level, the rationality of loan term and the understanding...
Proceedings Article

A Safety Evaluation of Offshore Lattice Boom Crane

Heon-Jin Seong, Chang-Kweon Jeong, Jong-Hoon Jeon, Sang-Hyeok Park, Yong-Gil Jung, Sun-Chul Huh
Korea experienced a recession in the shipbuilding industry due to a decline in orders for vessels and a lack of orders from the Korean market. In 2017, the amount of orders has increased compared to the previous year, but it is expected to be only 60% of the previous level in 2020. However, it will be...
Proceedings Article

Context Co-occurrence Based Relationship Prediction in Spatiotemporal Data

Caixu Xu, Jianfeng Yan, Lu Yang, Guanggen Xu, Hongbin Shi
Recently, users’ relationship prediction in spatio-temporal data has attracted widespread attentions. Previous studies have focused on either co-occurrence or context in spatial aspect, where the context in time aspect is seldom considered. In this paper, considering co-occurrence, context, and mobility...
Proceedings Article

Introduction on the Importance of Engineering Survey in Project Management

Yanlei Meng, Guiming Chen, Mi Sun, Zhipeng Sun, Weigang Gao
During the construction of the project, all surveying and mapping work is collectively referred to as engineering survey. Therefore, the measurement work contains a wide range of content, in the engineering survey, design and construction management stage are involved. To the actual work, the project...
Proceedings Article

A Review of Anomaly Detection Techniques Based on Nearest Neighbor

Ming Zhao, Jingchao Chen, Yang Li
The concept of nearest neighbor has been used in several anomaly techniques, which supposes normal data instances occur in dense neighbors and anomalies occur far from their closest neighbors. So the techniques require a distance or similarity measure defined between two data instances. By now, there...
Proceedings Article

Research on Head-box Liquid Level Precise Servo Control System of Twin Roll Casting Aluminum Alloy Strips Based on Laser Ranging

Jiaxi Liu, Zhinan Mi
There are defects in traditional liquid level control system of twin roll casting head-box, this study proposes one kind of liquid level precise control system for the head-box based on a combination of laser precise ranging and precise servo control system. Precise laser rangefinder implemented stable...
Proceedings Article

An Improved Distribution Network Evaluation Index System

Ruiguo Liu, Kaijun Zhao
At present, the comprehensive index evaluation system of distribution network does not include access to distributed power and electric heating, which is not in line with the actual situation nowadays. To this end, an improved comprehensive index evaluation system is proposed, and the weight of indicators...
Proceedings Article

The Rise of Big Data and Land Engineering Disciplines

Lu Zhang, Zenghui Ma
With the development of the times, "big data" has begun to enter people's lives, and it has also increasingly changed the way people think. As an emerging discipline, the development of land engineering disciplines is inseparable from the support of big data.