30 results about "Information sensitivity" patented technology

The invention discloses an image significance object detection method based on multiscale low-rank decomposition and with sensitive structural information. The method comprises the following steps of: a three-dimensional volume data generation stage: performing superpixel decomposition and DT (Delaunay Triangulation) on a two-dimensional image to form three-dimensional volume data corresponding to the two-dimensional image, a Biharmonic distribution calculation stage: obtaining a Biharmonic diffusion result of each superpixel point, a subgeneration description stage: performing histogram statistics on L2 distances between sampling points on Biharmonic isolines of the superpixel points to form shape description of the isolines, and a multiscale low-rank decomposition stage: obtaining a final significance object detection result by differencing sparse matrixes obtained by the low-rank decomposition under different scales and performing residual error matrix summation based on the shape description of the Biharmonic isoline of each superpixel point. The method is based on GPU (Graphics Processing) parallel implementation, can detect one or more significance objects in the image, and has the characteristics of high detection precision of the significance object, complete detection of the significance object, good noise resistance and the like.

There is described a method for determining a level of sensitivity of information in an electronic document. The method comprises scanning a computer location to select the electronic document, such as an unstructured document in which the sensitive nature of a given portion of the contents is not trivial. In the electronic document, contents and metadata of the electronic document are scanned, and each occurrence of sensitive data is identified by classifying each portion of the contents forming the electronic document as sensitive, or not sensitive, per se. For each occurrence of the sensitive data, there are determined a type of the sensitive data and a risk score associated to the type of the sensitive data, for example from a knowledge base. Using the risk score of each occurrence of the sensitive data, one can determine an exposure risk score of the electronic document.