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 order to effectively solve the uncertainty small-samples fault diagnosis problem, a practical data-driven grey-based fault detection and diagnosis (FDD) method for complex equipments is investigated. Firstly, an improved fuzzy-grey relational analysis (FGRA) technique is proposed by introducing dynamic identification coefficient and fuzzy relational weight. Compared with the traditional Deng's...
The inconsistent diagnostic information often occurs in fault diagnosis of complex equipments. In order to improve the diagnosis precision, an integrated fault diagnosis method is proposed based on variable precision rough set (VPRS) and Naive Bayesian network classifier (NBNC). Firstly, according to the relative discernibility of the original fault diagnosis decision table, the β in VPRS is self-determined...
The entrepreneur ability is the key factor to influence the growth of family business. The influence of entrepreneur ability to the enterprise growth is reflected on the demand and supply relationship of entrepreneur ability. The compared results of entrepreneur ability in supply and demand decide the efficiency boundary of enterprise operating and the scale boundary of enterprise growth. Because...
In the procedure of traditional ridge regression, adjusting matrix kI is added to X'X in order to reduce the singularity of X'X, and the variances of the least squares estimate of parameters could be controlled to reasonable range. It is shown by computer simulation in this paper that the least squares estimates of parameters would be much better when matrix kI is replaced by a proper irregular adjusting...
We design and implement a web-based open laboratory information management platform called WOLIMP which is an integrated portal and enables users to better understand the open laboratory's comprehensive overview, research projects and results. WOLIMP provides an effective news management, application and review issues, laboratory document management, dynamic catalog management, and user-access control...
In view of fuzziness of university teaching quality evaluation, AHP-based multi-level fuzzy comprehensive evaluation model become the advantage model for university teaching quality assessment. It is of great importance to evaluate scientifically teachers' teaching quality in the classroom. The methods of AHP and Fuzzy comprehensive evaluation are applied to evaluation of classroom teaching quality...
eMM (e-learning maturity model) is used for evaluating the capability and maturity of an institution engaged in e-learning. Based on the original eMM, we suggest a quantitative approach , which can set up an eMM process meta-model as a frame of reference to process improvement, use process capability baseline to metric process capability, make quality estimation and project management, while use SPC...
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.