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In the recent years, the rapid increase of industrial pollution, scientific evaluation of air quality is an important research topic. This is the Bias network applied to the city air quality evaluation of air quality characteristics, establish a directed acyclic graph (DAG), and the air quality data of Shanghai for training and validation, the experimental results coincide with the actual situation,...
Accurately learned air quality of second-hand housing is very important for home buyer. In order to provide home buyer with a simple and novel approach to get air quality of second-hand housing, this paper firstly presents air quality of second-hand housing forecast method using random forest that is one of the data mining algorithm. According to hedonic price theory, by training the random forest...
Security issues are always difficult to deal with in mobile ad hoc networks. People have seldom studied the costs of those secure schemes respectively and for some secure methods designed and adopted before-time, their effects are often investigated one by one. In fact, when facing certain attacks different methods would response individually and it would result in some waste of resource, which may...
Self-organized overlay is widely used in Peer-to-peer (P2P) networks for its scalability, adaptability, and fault-tolerance in large and dynamic environments. In this paper, we propose a fully decentralized approach, DGSD(Decentralized Grid Service Discovery) for Grid service discovery. DGSD makes use of the underlying P2P overlay network protocols to self-organize nodes and services in the Grid....
Deployment of wireless sensor networks on 3D complex surface is an important and fundamental issue to be solved. The existing studies focus on the plane coverage and 3D coverage under ideal conditions. An important flaw of their algorithms is poor in flexibility and operability, and not considering the economic cost factor of nodes. To this end, this article presents an elevation map based an intelligence...
Structural building relocation is a complex dynamic process while the current study to the project was restricted to a specific project and most of the theoretical researches were focused on the rolling way to realize the relocation. The purpose of this paper is to formulate the model of frame structure building relocation by sliding way and to obtain the force in building elements under different...
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