Abstract: A webpage containing information to be extracted may undergo changes to a layout of elements that present the information. These changes could result in an inability to retrieve the information later. A first graph is determined that represents elements of a first version of a webpage at a first time. An element in the first graph for which information is being acquired is specified. A relevant portion of the first graph is designated that includes the element and immediate neighbors in the first graph. Later, a second version of the webpage is retrieved, and a second graph of that second version is determined. The relevant portion of the first graph is compared to the second graph. If a match is found, the information of interest is extracted from the specified element of the second graph. This allows extraction of information to proceed even if the layout of elements changes.

Abstract: A method for visualization of treatment volumes includes accessing a plurality of images of a region of interest in a subject that are parallel to a plane. The method also includes delineating a cross section of a first treatment volume and a cross section of a second treatment volume in each of the plurality of images. The method includes reconstructing a three dimensional representation of the first and second treatment volumes from the plurality of images based on the delineated cross sections in the plurality of images. The method includes displaying, in a three dimensional image, a portion of the first treatment volume that is located on a first side of a plane and displaying, in the three dimensional image, at least a part of a portion of the second treatment volume that is located on a second side of the plane. The second side is opposite the first side.