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.
Currently, friction drive with ultra-low speed and high accuracy is widely used in large astronomical telescopes. However, astronomical telescope is a large inertia load. Slippage and creepage are hardly avoided while the telescope are operating at ultra-low speed and facing variable external disturbances like wind buffeting. This paper describes the control method and software design for the large...
Over the last few years, a large number of security patterns have been published. However, this large number of patterns led to a problem in selecting appropriate patterns for different security requirements. In this paper, we present an automatic selection approach for security patterns. We use text processing approach and learning techniques to select appropriate security patterns for given security...
Software cost estimation is a key open issue for the software industry, which suffers from cost overruns frequently. As the most popular technique for object-oriented software cost estimation, use case points(UCP) method, however, has two major drawbacks: the uncertainty of the cost factors and the abrupt classification. To address these two issues, we propose the extended use case points (EUCP) method...
Localizing a program fault accurately in debugging is complex and time-consuming. In the process of fault diagnosing, identifying or generating the successful test paths as similar as possible to the failed test is core for the effectiveness of faults localization. A method for calculating the similarity between two test paths based on analyzing difference between program control-flow is defined,...
This paper presents a new approach for outlier handling and analysis of geospatial-autocorrelation data. We improved a new outlier detecting model named comparative method of unit matrix (CMUM) based on standard-deviation rule (SDR) and estimating neighborhood method (ENM) and compared this model with SDR, ENM and influencing coefficient method (ICM), and evaluate all four methods with respect to...
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.