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The contents of this paper is about the design and implementation of hardware and software for water wells monitoring terminal, and its hardware adopts the ARM architecture, including atmel AT91SAM9263 as main processor and GPRS wireless network. For software design of water wells monitoring terminal, designing terminal software solutions based on uClinux embedded operating system takes account of...
In social networking (SNS), the user and the topic are important dimensions of social influence. This article presents a framework of decision-making on SNS topic expanding, named MSNTD [1]. MAS was used in this frame to describe SNS. For a specific topic, agents can get the best way to make the topic expand through active consultation and evaluation. Decision-making process is divided into two stages...
DevOps community advocates collaboration between development and operations staff during software deployment. However this collaboration may cause a conceptual deficit. This paper proposes a Unified DevOps Model (UDOM) in order to overcome the conceptual deficit. Firstly, the origin of conceptual deficit is discussed. Secondly, UDOM model is introduced that includes three sub-models: application and...
Interest of covert timing channels is increasing rapidly. A lot of exploitation has been done on the construction of covert timing channels over the internet. But the construction work of covert timing channels is always in laboratory environment. In the real network environment, delay and packet loss influence the transmission quality of covert messages. In this thesis, we introduce evaluation criterion...
Existing model checking tools for security protocols analysis have two drawbacks, when applied to present day cloud-based protocols. Firstly, they do not consider the new features of cloud computing. Secondly, they do not support the reconstruction of potential attack scenarios. Which could provide conclusive descriptions and non refutable proofs regarding the source of the attack, details of steps...
With the advent of the big data era, traditional data mining algorithm becomes incompetent for the task of massive data analysis, management and mining. The development of cloud computing brings new life to algorithm parallelization. In this paper, we have studied the K-means algorithm, one of the clustering algorithm. Then we attempt to improves this algorithm via the method that sample the large-scale...
We proposed an effective block medical image fusion method based on adaptive pulse coupled neural networks (PCNN) in this paper. Source images are divided into several blocks, and then we calculate the spatial frequency (SF) of the blocks as linking strength β of the PCNN, so it adjusts β of the PCNN adaptively. The block images are input into PCNN to get the oscillation frequency graph (OFG), which...
Currently, the methods of entity relationship modeling are mainly based on existing historical data or Complex Networks, because one-dimensional elements characterizing clusters relationship can't be a true reflection of the entity relationship and potential structure of IOT(Internet of Things). This paper proposes a method of entity relationship modeling of IOT based on Supernetwork, by considering...
Image processing denoising is a very important step, the hot issue is also the current research. Wavelet transform multi-resolution is frequency analysis features, in order to further improve the image denoising quality, improve visual effect, the paper image denoising methods based on wavelet transform, and which points out the further researching directions.
Based on deep analysis and research on the Lucene index mechanism, the paper uses memory as buffer to construct index file, combined with disk index storage, and carries on the collaborative index, forming an extensible search engine solution, which greatly alleviates the bottleneck problem of building index to search.
In large or medium retail enterprises, the downstream of the supply chain is usually composed by distribution centers or various warehouses. Since the distance of each distribution route is large, so the optimization of path is very important for the cost control and profit maximization of the enterprise. This paper uses Dijkstra Algorithm to solve the shortest path problem, and uses the method of...
Since large quantity and wide range of the monitoring objects, high concurrent of the business access, complication and changeability of the runtime environment, it is difficult to adopt a single communication transmission system and a single way of media access in the communication of smart distribution grid. It is existed as public network, private network, cable network and wireless network all...
Process algebra have been effectively exploited for modeling and verifying functional aspects of services composition, but non-functional aspects have not been given enough care due to process algebra lacking of capability of modeling them. In this paper, we propose a novel process algebra called PTPA that incorporates price and cost. We present syntax and semantics of PTPA. And an algorithm is proposed...
In the MANET with high mobility, many routing responses of the contiguous nodes in the DSR routing protocol can not arrive to the resource nodes. So the routing requests which broadcast to these nodes produce much unnecessary use. We can acquire relatively steady routing responses if we chose the contiguous nodes to start the routing require which with less mobility compare with resource nodes. This...
Nowadays, the driver drowsiness has become a main cause of many traffic accidents, while the state of eye is a significant factor which has a close relationship with sleep. This article presents an algorithm which can estimate drivers' eye states, aiming at reducing the rates of traffic accidents by monitoring drivers' drowsiness. Firstly, a driver's face images are grabbed from a digital camera and...
Setting up new data and image processing systems is an always recurring task. Since reusing algorithms and other functionality leads to higher program quality and mostly shorter development time, this approach introduces a novel Component-Based Software Engineering System (CBSE). It supports special types such as diagrams and structures, components and component-instance-diagrams known from UML. The...
This paper presents an improvement of heuristic placement algorithm for solving two-dimensional knapsack packing problem. The packing patterns were enhanced by modifying the packing rules. This approach can increase the feasibility for packing more suitable items to a container while also preserves the advantages of rules greediness. The total average percentage of trim loss is reduced nearly 15 percent...
Currently, Linux operating system has become a research focus in the embedded system field, due to its unique advantages such as open-source and security. In this case, this paper provides an idea to transplant the navigation program from VxWorks system to Linux operating system. Therefore, in order to achieve the objective mentioned above, this paper focuses on the analysis of startup process of...
Software testing has been a challenging job over the decades and possess more challenges for complex inputs such as images. While evaluating correctness of the output images, there may exist a large number of correct or incorrect images with insignificant differences. A test oracle is required to evaluate the correctness of output images which may not be available in most of the cases. Currently,...
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