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Software-Defined Networking (SDN) consists of two planes: the control and the forwarding plane. The control plane is moved out of the switch and into the separate, centralized controller, and is responsible for configuring the switch and programming the paths to be used by data flows. The controller hosting the applications collects information from the OpenFlow switch using the OpenFlow protocol...
Due to the vast volume of publications in nowadays research environment, methods for analyzing, organizing, and accessing information from large databases are in great need. Through appropriate analytic tools, competitive intelligence can be revealed to enhance the organization or individual performance. This article will show how a free software package called CATAR carry on the analysis about the...
Based upon the software reliability and reliability design of information system, this paper puts forward various measures of software structure design, software error-avoided design of simplified design, reuse design and interface design, software error-tolerated design of redundancy design, robust design and recovery design, software error checking and correcting design. Thenceforth a primary prospect...
With the growing importance of privacy in data access, much research has been done on the privacy protecting technology in recent years. Developing an access control model and related mechanisms to support a selective access data become important. The extensible markup language (XML) is rapidly emerging as the new standard language for semi-structured data representation and exchange on the Internet...
The characteristic of Da Hong Shan pipe is with a high lift, a varied topography and so on. For the precise control of pipeline operation, need to be more accurately grasp flow position, plug, leak, and to speed up the flow in the slurry pipeline. So, there need for a powerful computing platform for data model, to provide real-time information. In this paper, Da Hong Shan pipeline intelligent monitoring...
During the engineering design and teach about engineering drawing, it is often to help our thinking in space by model, when we read or draw engineering design. Special manufacture and easy damage result of high cost of making and remaining. In this paper, a new method is put forward to develop the model library by combining Cult3D and online management, which take use of advantages of network in share...
With the post-genome era coming, it is interesting to establish a new bioinformatics database, further integrate related information of the sequences and develop new methods to reveal the mechanism of life based on databases of sequence. We have built a professional bioinformatics database of non-coding miRNA named G-microRNA by means of PHP, MYSQL and so on. The database integrates more than 2,000...
Semi-tied covariance (STC) is applied widely in speech recognition due to its feature de-correlation ability. Solving the transform matrices of STC is a nonlinear optimization problem. Gales proposed an efficient method by iteratively updating a row of transform matrices. However, it needs to solve cofactors of elements of a matrix row in two layers of loops. Directly solving them is very time-consuming...
Posterior probability is mostly used for pronunciation evaluation. This paper introduces pronunciation space models to calculate posterior probability replacing traditional phone-based acoustic models, which makes the calculated posterior probability more precise. Pronunciation space models are constructed using unsupervised clustering method guided by human scores and phone-level posterior probability...
This paper presents a method that the dependency between F0 and spectral features are modeled for the HMM-based parametric speech synthesis system. In conventional systems these two features are modeled as two independent streams, which is inconsistent with the fact that there always exists interaction between the extracted F0 and spectral parameters for model training. A piecewise linear transform...
In this paper appropriate confidence measures (CMs) are investigated for Mandarin command word recognition, both in the so-called target region and non-target region, respectively. Here the target region refers to the recognized speech part of command word while the non-target region refers to the recognized silence part. It shows that exploiting extra information in the non-target region can effectively...
Tonal evaluation of Chinese continuous speech plays an important role in Mandarin Chinese pronunciation test. In this paper, we introduce the Multi- Space Distribution Hidden Markov Model based on prosodic word. The results show that the performance of tonal syllable error rate can be reduced. For the non-standard Chinese Mandarin speech, the correlation between computer score and expert score was...
On the basis of deep research on dependability of computer system, we extend the notion of dependability attribute, which is the dependability analysis object of traditional dependability theory, and present the multidimensional dependability object. We put forward a scientific and practical goal-based dependability analysis and improvement framework for computer systems. Aiming at the characteristics...
An efficient algorithm for facial features extractions is proposed. The facial features we extracted are the edges of two eyes, nose and mouth. The algorithm is based on an improved Gabor wavelets edge detector to detect the face region and facial features regions. The experimental results show that the proposed method is robust against facial expression, illumination, and can be also effect if the...
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