An important milestone in network development is ISO's (International Standardization Organization) definition of the OSI (Open System Interconnection) seven-layer network model. The OSI reference model is a logical definition, that is specification, it logically divides the network into seven layers....

The examination evaluation of students is a complex, multi factor, multi variable nonlinear system. The traditional evaluation method is difficult and fair to reflect the students' learning effect. In this paper, the student examination evaluation system model based on the BP neural network based on...

For the problem of road traffic sign, this paper proposed the traffic sign recognition algorithm based on SVM of LBP. Firstly, colour space conversion, binarization processing, expansion, demonizing and filling are carried out for the collected signs to obtain the target area in the image. Then, LBP...

Abnormalities detecting is one important application in the field of image processing and pattern recognition. It can alleviate human workload and improve productivity that employing computer graphic image theory and image processing technology analyzes and matches images in order to detect the abnormal...

The matrix factorization (MF) algorithm plays an important role in collaborative filtering (CF). The traditional MF algorithms usually assume that the correlated data is distributed on a linear hyperplane, which is not always the case. Therefore, it is a hot topic to combine the kernel algorithm with...

In this paper, the combination of CORDIC algorithm and mathematical method is used to complete the implementation of 128-bit floating-point exponential function and logarithmic function. The implementation of exponential functions and logarithmic functions is involved in speech recognition, image processing,...

Aiming at the problem of location and tracking of hypersonic vehicles in adjacent space, the tracking and tracking performance of low-track binary satellites based on targets is explored. The trajectory model of hypersonic vehicles is established. Based on STK and Matlab simulation software, two stars...

Rough sets theory provides a good method for getting excellent decision rules set with the conduct of reduction from the decision table. This paper describes many evaluation metrics of decision rules, analyzes the properties for these evaluation metrics. Then it presents the evaluation metrics for rule...

To make sure that manipulator can perform well on novel environment, a new grasping approach based on object detection is proposed. A pose estimation network is used as usual to predict the grasping pose of the object while an object detection network is added before it as the input information of the...

Device-to-device (D2D) communication is a promising technique for traffic offloading in next-generation cellularsystems, in response to the sharp increase in traffic and unevendistribution. In this paper, in the case of meeting the user’s delay, we propose a multi-hop D2D traffic offloading scheme to...

The current feature extraction methods for small sample signals focus on improving the performance. How to build a virtual sample set with strong rationality and high accuracy based on the original sample is one of the challenges in realizing small sample signal analysis. In line with the radio service...

In order to optimize transit network layout from the perspective of coordinating the conflicts between different stakeholders, this research constructs a multi-objective model and proposes a solution algorithm. The model is established from the perspective of operators with the goal of minimizing the...

Considering the discrete and order attributes of household car ownership, the unordered response model (MNL model) and ordered response model (OL model) are used to predict the household car ownership using the data of fifth Beijing Person Trip Survey in 2015. The results show that the number of driver's...

Characterized by big data, artificial intelligence, IOT, automation, the industrial sector's transition to Industry 4.0 is much more than just a question of technology. It will affect not only individual corporate strategy but also national economic and employment policy. The Internet of Things provides...

The dual UAV docking system is recently known as an important challenging task to improve the cruising ability of the multi-rotor UAV. In this paper, a mechanical structure of this system is illustrated. Monocular vision is adopted to identify the infrared beacons for the dual UAV charging positioning....

Port efficiency evaluation has always been a hot issue in transportation economy and shipping economy research. This paper attempts to evaluate the efficiency of main ports of the Yangtze River main line by using three-stage DEA model, reveals the efficiency change trend and spatial characteristics of...

In this paper, the sixth "Freescale" National University Student intelligent motor racing as the background, "based on culture, participation, encourage the exploration, the pursuit of excellence," the guiding ideology, self-designed and fabricated to guide the intelligent vehicle based on electromagnetic...

With the rapid development of network technology and information technology, the era of big data has come. Every day is accompanied by a huge amount of data. The library is also undergoing different changes every day in the processing of information resources and data resources. Knowledge and information...

in the process of large-scale logistics and transport, the relationship between transport path selection of vehicles and transportation energy-saving is complex, this relationship is affected by the nonlinear application of vehicle transportation time, distance and cost. Reasonable energy-saving scheduling...

With increasingly high demands of personalized requirements and delivery time of customers, material distribution must be on time with guaranteeing the flexibility. This became one of the most critical technologies for companies to achieve the intelligent logistics. Aiming at the issues which is large...

With the development and evolution of communication technology, maritime communication methods still lag far behind developed land. This paper first introduces several existing long-distance communication methods from communication speed, communication distance and application fields. Compared with the...

In view of the fact that the traditional spectrum occupancy parameter cannot reflect the transmission of multiple signals within the same frequency, in order to master the more detailed usage of radio frequency, this paper takes radio signals as the object and puts forward the concept of the signal lifetime...

In the internet age, whether a book has the value of reading, online comments play an important role. The data set in this paper is 4,000 comments obtained by the web crawler in Douban Reading. Based on the improved support vector machine (SVM) algorithm, a sentiment analysis has been given to these...

Text classification is an important research direction in the field of natural language processing. With the development of Internet, the use of e-mail is becoming more and more common. It is very important to quickly understand the subject and content of an e-mail in a mailbox. For example, when the...

With the popularization of electronic communication and social media, people-related information data has increased massively, which brings about a series of "privacy data risks" such as information data leakage. Conducting the personal behavior data as the index, the application domain as the criterion...

Nowadays, many unexpected topics in the society initiate on the microblog platform and spread rapidly, and some of them finally become hot events. The technology for detecting these hot events on the microblog platform, has exerted a very positive influence on the discovery of the latest social hotspots...

Currently, photovoltaic module manufacturers still rely on manual detection of EL images of photovoltaic modules to identify hidden defects. EL image detection is an important link in the quality control of photovoltaic modules production. Manual detection leads to slow detection speed, and the accuracy...

Mesh network is a relatively new wireless network, which has the characteristics of large capacity, fast speed and huge space for development. This paper proposes an AODC_ Improve routing protocol by optimizing the existing on-demand routing protocol (AODC). This protocol has the characteristics of end-to-end...

Traffic system is a complicated system, to realize digital management of transportation system, it is necessary to obtain the digital information of all component, and build the database to save and organize the digital information. According to the distribution characteristics of traffic system, CORS...

Building a smart city is to archive intelligent management and services, thereby promote a more efficient and convenient urban life. However, the spatial impact of smart city technology is not clear. Current literature has focused on online shopping, which we believe produce less spatial impact as another...

Under the complex passenger flow environment, the failure of key equipment will affect the subway station capacity (SSC), and the average travel time of passengers is considered as the evaluation indicator of subway station capacity. The key equipment capacity model and station capacity model considering...

This article carried out surveys on community residents in Beijing to obtain vegetable buying channels information. The influencing factors of buying decisions are analyzed to find the key factors. Taking this as a basis, some suggestions are proposed on the development mode of vegetable retail terminal...

With the development of the Wangjing regional economy, the number of cars in the region has increased. In order to allow inter-regional vehicles to pass with high efficiency, it is necessary to perform some efficient control at the boundary of the area. First, controlling the intersection of the entire...

The vehicle routing problems (VRP) in logistics distribution has far-reaching significance to logistics companies in reducing transportation costs and improving service quality and efficiency. A lot of research has been devoted to solve VRP. However, in practical applications, with the increase of constraints...

Queuing theory is a mathematical theory and method for studying the random dispersion phenomenon and the working process of a random service system, and is mainly used to solve the queuing or congestion phenomenon. This article systematically studies the logistics dispatch at the present stage. Based...

Aiming at the transmission efficiency of asymmetric PCMA communication and the improvement of its communication capacity, the full use of the characteristics that PCMA technology can be combined with common multiple access technology can be realized by transmitting multiple small signals in a large signal...

According to the development status of e-commerce logistics industry in Yuhong District of Shenyang, this paper combines the components of e-commerce logistics industry chain and uses DEA (Data Envelopment Analysis) to develop the e-commerce logistics industry in Yuhong District and other districts and...

With the focus on infrastructure construction to the mountainous expressway in China, it causes an intense discussion that how to guarantee the safety of operation. Due to the limitation of landform and physiognomy, there are many bridge and tunnel sections in mountainous expressway to rapidly pass through...

The paper provides a more practical cellular automata traffic flow model for a dual-lane highway traffic system by introducing the rules of emergency braking and gentle braking, along with their trigger headways, and make it available to Intelligent Transportation System. According to the results of...

The development of China's logistics industry has got tremendous opportunities from the "One Belt and Road" strategy. The interconnection between China and the countries along the route has not only enhanced trade relations, increased economic efficiency, but also brought opportunities for the development...

With the progress of integrated circuit technology and the development of intelligent technology, the control module of robot technology is also reduced, the performance is improved, and the power consumption is also reduced. It makes it possible to design and implement a compact and powerful robot....

The development on urban and rural transportation resources Integration is the new trend in urban and rural transportation supporting economic and social developments; it is also the important way in promoting urban and rural public service equalization. This paper analyzes and studies 5 development...

With the development of the times, the amount of data processing is increasing, which brings new research challenges to data storage and processing data, but for traditional decision tree algorithms, it is far from meeting current data processing. Requirements, therefore, put forward new requirements...

The rapid development of Internet of Things (IoT) has drawn much attentions. Recently, the unmanned vehicles-based application for the IoT is widespread. With the unmanned vehicles, the human-machine display design of the unmanned vehicle instrument panel is very important. To rapidly and precisely obtain...

Nowadays, one of the most significant signal carriers, the radio wave of high frequency propagates in multi-hop path. We establish the foundation model of Sky-wave reflection in order to study the relationship between some factors (signal intensity, SNR (Signal to Noise Ratio), etc.) and propagating...

BP neural network and rough set theory play an important role in the field of prediction. In view of the present situation of customer churn in logistics industry, this paper combines rough set and BP neural network to forecast customer attrition behavior in logistics industry. Firstly, using rough sets...

Code transplantation, which is using a function of code from one software directly into another, and make the function work in it. Several tools have been built to transplant code, but there is still no research solved the problem of transplanting open source software. Open source software has the characteristics...

OSPF is the most widely deployed intra-domain routing protocol within an autonomous system. Although there are several mechanisms, such as flooding and fight-back, strengthening the security of OSPF, some serious vulnerabilities of the protocol are newly exploited. In this paper, we perform simulations...

Efficient utilization of finite spectrum resource is one of the purposes of spectrum management. Frequency channel occupancy is often used to evaluate the historical usage status of a frequency. Predicting the frequency channel occupancy is of great value to improve the utilization rate of spectrum resources....

An improved optimization method for the FIR filter design is proposed., which uses SDP method to solve the filter design. The aim of optimization is least group delay in passband while the constraint conditions include the magnitude errors in all frequency domain. The experiment results show this method...

Information security classified protection is the basic system of national information security protection work and the basic requirement for information system security protection. The construction of the email system of colleges and universities should meet the security requirements of the 2nd-Level...

This paper analyzes the content composition and detailed structure of the MNIST dataset, introduces the overall level of the traditional LeNet5 network, and proposes an improved algorithm for its hidden layer, optimization function, activation function, etc. of the network layer structure. Optimization,...

In the global-scaled internet of things, the wireless sensor networks play an important role of collecting information. The sensors are developing towards the integrated information sensor and complex information may be displayed. To obtain the comprehensive information rapidly and precisely through...

With the advent of the era of big data, data analysis and processing has become a hot topic of research, and data mining has become a top priority. Based on the discussion of clustering algorithm, this paper proposes a hybrid clustering algorithm. The algorithm solves the dilemma of relying too much...

The article studies the issue of non-centralized communication frequency choose issue in micro base station (MBS) communication system for maximizing satisfaction utility in opportunity unauthorized frequencies system (OUFS). Considering the operative frequency width limit and capacity demand for each...

Given a group structured dictionary, sparse representation vector is more likely to take on a particular structure. Intuitively, better results can be achieved if the structural characteristics are reasonably utilized. Inspired by this, we propose to construct a new discriminative group structured dictionary...

In order to further determine the impact of climate change on national vulnerabilities, we choose Yemen as the study object. On the one hand, we select some countries that have been in an extremely fragile state for a long time as a reference standard. With method of Grey Relational Analysis, we calculate...

With the growing maturity of Internet of things, more and more hardware devices are developing towards intellectualization. Handwriting plays an increasingly important role in people's lives. However, due to the different writing habits, the character shape varies greatly. At present, the recognition...

In the field of games and GIS development, the shortest path search is often involved, and the A* algorithm with heuristic functions is one of the more commonly used search algorithms. By studying the path search algorithm, on the basis of the simulation of the theory, combined with different heuristic...

After a thorough study of the characteristics of electronic evidence, an electronic evidence preservation scheme based on block chain and Merkle Tree is proposed. In this scheme, a P2P network technology is used to realize the decentralization of the system, an encryption algorithm is used to ensure...

This paper analyzes the reasons that affect the road safety in Beijing from three aspects: motor vehicles, non-motor vehicles (represented by bicycle) and pedestrians. In view of the above problems, this paper puts forward corresponding improvement points. First, the relevant departments should improve...

During the process of grain storage, changes in seasons and weather will cause changes in the temperature and humidity of the granary, which will affect the occurrence of pests in the grain pile and the possibility of condensation, leading to problems such as grain deterioration and water loss. In this...

In the satellite communication system, the satellite-ground link acts as an intermediary connecting the space network with the terrestrial network. Unfortunately, this link has become a bottleneck due to bandwidth fatigue, which seriously threatens the availability of network services. Besides, as a...

Many enterprises currently undertake part of their production system by deploying virtual resources on a single server (local mode). However, with the increase of business pressure and the aging of equipment, the disadvantages of system performance are more and more obvious. The single-machine mode is...

The rapid development of China's economy in the past 30 years is inseparable from the perfect road and bridge transportation system, the completion of roads and bridges promote the economic development and cultural exchange of two places, it can be said that the construction of roads and bridges boost...

In this paper, the development types of urban and rural transportation integration are divided into different regions in China. On the basis of analyzing the economic and social development level and the actual situation of the integrated development level of urban and rural traffic and transportation...

With the development of MEMS technology, the measurement and determination of many sensitive parameters have been realized, and the interconnection between intelligent sensor network and everything has become possible in hardware. Various sensor integrated information sensing technologies have also made...

This paper uses the three-layer architecture of B/S as the basic framework for system development. The front-end interface uses HTML5 to design the overall architecture; CSS3 and JavaScript are combined to complete the rendering and interaction of the interface. The WebSocket protocol is adopted to establish...

In the docking process of hose-drogue aerial refueling system, the bow wave effect of an approaching receiver aircraft will produce a strong aerodynamic effect on the drogue which intensify the deviation of drogue and increase the difficulty of the docking. In order to reduce the influence of bow wave...

With the development of science and technology, intelligent facility has already become an indispensable part of our life. At the same time, shopkeepers want a convenient and inexpensive facility to cut the labor cost. To meet their needs, we decide to design an Intelligent Shelf System. The Intelligent...

This paper elaborates on the research results of system architecture design and typical module design of the quality supervision and management data platform for rail used in railway transportation in the whole production process, and clarifies the function and application of the platform. The system...

due to characteristics including multiple management, across localization, large user number and complex management, large-scale hierarchical organizations including governments and large enterprise groups, they require cloud platform architecture could adapt to a variety of flexible deployment patterns...

With economic expansion having moderated to a "new normal" pace, the railway freight market share continues to be sluggish, and China's railways are transforming into modern logistics and carrying out pickup and delivery services. This paper mainly focuses on the transportation lines of the external...

Express delivery industry is formed of stages of the formation, development, maturity and other developmental status. The definition of its developmental stage makes it feasible to formulate more scientific and reasonable measures to promote better development of the express delivery industry. The logistic...

In the new economic environment, modern logistics has gradually become an important pillar of the development of the national economy. As a form of advanced logistics services, third-party logistics is booming. Based on this, this paper analyzes the development status, characteristics and development...

Sponge City means that the city can be like a sponge. It has good "elasticity" in adapting to environmental changes and coping with natural disasters. When it rains, it absorbs water, stores water, seeps water, cleans water, and releases the stored water when needed. And use it. Sponge city construction...

A selective adaptive median filter is proposed for the restoration of gray scale images that are highly corrupted by salt and pepper noise. In this paper, impulse noise removal using the standard median filter and its variants are analyzed. After detecting the salt and pepper noise pixels, the self-adaptive...

In this paper, we propose two new models for the absolute error of a linear regression. One of which is for the average value of all data points connected the slope, and then find their average value can be obtained slope, finally use the mean point can get a linear regression equation. The other is...

This paper discusses and designs the structure and operation mode of the battery recycling logistics network with recycling unit, recycling point, collection center and recycling factory as the key logistics nodes. Considering the complicated interaction between the entities, the Agent-based model architecture...

Since twenty-first century, earthquakes, floods and other disasters occurred frequently in the world. These disasters caused a huge loss of life and property. How to evacuate the personnel to safety area quickly and orderly has become particularly important. In order to realize the rapid and safe evacuation...

In order to reasonably evaluate the flight operation efficiency, the civil aviation flight operation efficiency evaluation index system is established from five aspects: quality and safety, environment, transportation efficiency, capacity resources and economic benefits. In view of the fact that the...

The Bayesian network is one of the effective tools for study of knowledge representation and casual reasoning in the conditions of uncertain in the field of Artificial Intelligence. How to construct a Bayesian network structure from data have become a hot point in recent study. Max-Min Hill-Climbing...

This paper extracts keywords, takes keyword frequency statistics and analyzes correlation by collecting index texts from student books in the library and questionnaires to understand college students’ preference interests, value orientations and hotspots. Thereby, they can further understand the reading...

The adjustment of transport structure is an important strategic plan for the new era to win the blue-sky defense and to build a beautiful China. Taking the United States as an example, this paper illustrates the objective regularity of the adjustment of transport structure, makes a thorough analysis...

This paper studies the typical logistics problem in equipment support, i.e. the decision-making optimization of material supply, which refers specifically to the transportation and distribution of materials and equipment (such as ammunition, oil, personnel, medical supplies, maintenance accessories,...

We proposed a novel method for dynamic logistic problem in the process of equipment support. Firstly, a multi agent system framework is built, including task agent, resource agent, negotiation agent and monitoring agent. In the static and dynamic logistic problems, we used a hybrid genetic tabu search...