Abstract: Content that is significant to a user may be determined. An indication that a user finds content within a document significant may be received. In response to the received indication, the document may be analyzed to identify a set of topics associated with the content of the document. From the set of topics, a subset of topics responsible for the user finding the document significant may be identified. A user profile associated with the user may be updated based on the subset of topics.

Abstract: The invention is directed to a shear system for an electric hair removing apparatus, in particular for an electric shaving apparatus, including at least one shearing unit having an outer cutter and an undercutter that are set in relative motion. The shear system of the invention includes at least one feeding device arranged to precede the shearing unit and is characterized in that the feeding device is set in motion relative to the outer cutter.

Abstract: A beam homogenizer at least includes a first optical lens for dividing a light beam into N(n′−1) beams in a vertical direction, a second optical lens for dividing the light beam into (2n+1) beams in a horizontal direction, a third optical lens for recombining the beams that are divided in the vertical and horizontal directions into (n′−1) beams while superimposing the (n′−1) beams so that they are deviated from each other in the horizontal direction, and a fourth optical lens for recombining the beams that are divided in the vertical direction.

Abstract: A method of calculating a discrete cosine transform at a high speed, comprising the input mapping step of mapping one-dimensional input data into three-dimensional input data, the three-dimensional derivation step of deriving a three-dimensional discrete cosine transform calculation expression from a one-dimensional discrete cosine transform calculation expression using a plurality of mapping functions to transform the three-dimensional input data into three-dimensional output data, and the output mapping step of mapping the three-dimensional output data into a one-dimensional output data. According to the invention, the number of multiplications is significantly reduced as compared with other algorithms, resulting in an increase in the DCT calculation speed.