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.
This paper proposes a new locally adaptive boundary evolution algorithm for level set methods (LSM)-based novelty detection. The proposed approach consists of level set function construction, boundary evolution, and evolution termination. It utilises the exterior data points lying outside the decision boundary to effect the segments of the boundary that need to be locally evolved in order to make...
This paper proposes a locally adaptive level set boundary description (LALSBD) method for novelty detection. The proposed method adjusts the nonlinear boundary directly in the input space and consists of a number of processes including level set function (LSF) construction, local boundary evolution and termination. It employs kernel density estimation (KDE) to construct the LSF and form the initial...
A reliable novelty detector employs a model that encloses the normal dataset tightly. As nonparametric probability density function estimation methods make no assumptions about the probability distribution of a dataset, this paper applies kernel density estimation to construct the initial boundaries surrounding the normal data points. Afterwards, the level set method makes the initial boundaries shrink...
[Objective] The research aimed to optimize extraction process of total flavonoids from Pteridum aquilinum var.latiusculum and provide a theoretical basis for development and utilization of total flavonoids from Pteridum aquilinum var.latiusculum. [Method] Taking the yield of total flavonoids as index, the orthogonal test L16 (44) with four factors and four levels was used to optimize the technological...
[Objective] The aim was to study the expression of cold resistant gene CAS19 of Gongnong No.2 Medicago sativa L. in tobacco. [Method] A pair of primers was designed according to nucleotide sequences of cold resistant gene CAS19 of M. sativa, and then RT-PCR was used to amplify the protein gene of CAS19, which was then cloned into pMD18-T vector and subcloned into expression vector PBI121. The recombination...
Granular computing is the key to granular neural networks, and in fact it is also the main problem in knowledge discovery and data mining. This paper addresses fuzzy information extraction and granular computing in granular neural networks in order that fuzzy rules can be discovered from fuzzy information which is difficult to be measured accurately with numerical data and furthermore the missing...
Software architecture testing is a technology on the connections and functions of system components. This paper presents a technology of software architecture testing based on LTL. Software architecture interface connectivity graph is used to describe the connection relationship between components and connector at first, and then generate testing coverage paths of the ICG according to three testing...
Software architecture provides a high-level model of large, complex systems using suitable abstractions of the system components and their interactions. SA dynamic descriptions can be usefully employed in testing and analysis. We describe an approach for SA-based test sequences. This paper discusses formal description of CHAM, and presents rule dependence graph, which shows the rule dependence relations...
Analysis of aerial images has been an important research topic for urban analysis. The classification and measurement for geometrical objects of a city will be simplified if its road network could be automatically extracted from aerial images. In this paper we present an automatic method to extract road network from high-resolution aerial images. These roads are found through the use of a consecutive...
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.