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.
China Southern Power Grid Company (CSG) and eMIT, LLC recently developed and implemented an online risk-based security assessment system-Probabilistic Security Risk Assessment (PSRA). PSRA calculates the probability of undesirable events in the transmission system and evaluates their corresponding severities. PSRA combines the probability measure of each undesirable event with the consequence measure...
This paper presents a novel method of visual measuring image compression based on wavelet packet decomposition. Firstly, the high frequency sub-band decomposed by the wavelet transform is further decomposed into multiple directional sub-bands, so as to present the edge of the image more sparsely and accurately. Secondly select the best wavelet packet tree structure through comparing cost function...
This paper proposes a hybrid algorithm based on improved LLE and adaptive k-means for visual codebook generation in tourism scene classification. Firstly, we construct the improved LLE algorithm to get lower dimensional and compressed image feature representations. Then we form the adaptive k-means clustering algorithm to generate the visual codebook. Finally, we use the visual codebook histogram...
As the size of image databases for various applications keeps growing at an explosive rate, how to automatically and efficiently classify the images and mimic human visual perception is an extremely important issue. The spatial layout information of the image is a kind of abstract semantics and the visual grammar of the image. It could dramatically improve the effectiveness of the scene classification...
A fast image in painting method based on hybrid similarity-distance is proposed in this paper. In Criminisi et al.'s work, similarity distance are not reliable enough in many cases and the algorithm performs inefficiently. To solve these problems, we propose a new searching strategy to accelerate the algorithm. In addition, we modify the confidence-updating rule to make more reasonable the distributions...
This paper studied cross-modal stochastic resonance between auditory pathway and somatosensory pathway. We used peg-board to test the fine-motor performance of the hand under different auditory noise. The performance was a U-shape function of the intensity of different levels of auditory noise which was a typical characteristic of stochastic resonance. Optimal auditory noise can largely improve the...
In the software industry, an unsuccessful software development project bears the characteristics that it would have fewer features, be late, and be over budget. We participated in a project that suffered all the three characteristics. Looking back, we realized that we have made many wrong decisions. This paper, serving as a case study, discusses these mistakes, especially the major ones that contributed...
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.