The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In view of the main problems existed at present in no-reference (NR) natural image quality assessment (IQA), This paper proposes a more general-purpose, efficient and integrated resolution based on visual cognitive mechanism. Firstly, it puts forward a inspiring visual cognitive computing model (IVCCM) based on visual heuristic principles. Secondly, it presents a asymmetric generalized Gaussian mixture...
With DCT and HVS, this paper proposed a frequency domain image watermarking algorithm based on mapping principle in Toral Automorphism. Firstly, we scrambled the original watermark image with Arnold transformation. Secondly, we transformed the original carrier image by discrete cosine transformation and chose some proper intermediate frequency coefficients based on human visual system. Thirdly, the...
The network traffic prediction model is the foundation of network performance analysis and designing. The traditional traffic models have the weakness of low-level efficiency. The recurrent wavelet neural network(RWNN) based on E Iman network was proposed in the paper, and the dynamic gradient descent algorithm of RWNN was given, and could be used in the network traffic prediction. Experimental results...
With the rapid development and extensive application of information technology, basic computer education in universities is facing severe challenges. In this paper, we analysed the reason why computational thinking was introduced to basic computer teaching in universities.We proposed a targeted teaching idea based on computational thinking, elaborated the implementation of basic computer teaching...
The research and application of semi-fragile digital watermark is being paid more and more attention now, especially for content authentification. We proposes a novel design for image content authentification based on semi-fragile digital watermark using side information, which combines the modern RSA public key encryption technique with communication principle just like spread spectrum technology...
With more and more data emerging on the Semantic Web, dealing with mass semantic data became an important problem. The current Semantic Web framework Jena doesn't support storage on distributed file system. We designed a new storage engine named JenaPro which extended the function of Jena to enable it access file on distributed file system HDFS of Hadoop. The JenaPro storage engine can be embedded...
the paper introduces and defines system of system support for equipment support force, and then according as complex network theory, it analyzes complexity and characteristic of complex network for systems-of-systems support of equipment support force, at last, it designs framework of equipment support systems-of-systems and maximizes the whole equipment support efficiency.
The paper introduces concept and characteristic of method for social network analysis, and then it analyzes and evaluates structure attribute of traditional equipment support organization. According to the complexity characteristics of equipment support organization structure, it optimizes the organization structure, and by data analyzed, it summarizes that network topological structure of equipment...
We propose Remaining Delivery Time Estimation based Routing (RDTER), a single-copy routing protocol for intermittently connected mobile networks. Nodes predict the Remaining Delivery Time (RDT) to each destination based on the distance estimations obtained from the recent two consecutive contact records. The distance estimation is set to be proportional to the inter-node encounter age, which is updated...
Newly developed electro-optic ceramic PMN-PT has demonstrated high electro-optic coefficient, low field-induced optical scattering loss, and good optical transmission. The materials are suitable for electro-optic and fiber optic applications from visible to infrared wavelengths.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.