Abstract: In one embodiment, a method separates subscriber features generated from subscriber interaction with a video delivery service into feature dimensions and inputs the feature dimensions into a respective prediction network. Each prediction network is trained to output a respective dimension score. The method outputs dimension scores using parameters in the plurality of prediction networks that are trained using a variance term to control a variance of the plurality of feature dimensions and using a de-correlation term to control a correlation of the plurality of feature dimensions. The dimension scores are combined into a retention prediction score and an action is performed on the video delivery service for the subscriber based on the retention score.

Abstract: In one embodiment, a method separates subscriber features generated from subscriber interaction with a video delivery service into feature dimensions and inputs the feature dimensions into a respective prediction network. Each prediction network is trained to output a respective dimension score. The method outputs dimension scores using parameters in the plurality of prediction networks that are trained using a variance term to control a variance of the plurality of feature dimensions and using a de-correlation term to control a correlation of the plurality of feature dimensions. The dimension scores are combined into a retention prediction score and an action is performed on the video delivery service for the subscriber based on the retention score.

Abstract: Embodiments of the present disclosure provide an effective, user-friendly approach to help prevent the abuse of social networks by users who misrepresent their age, identity, and/or other information.

Abstract: Methods and devices are provided for providing surgical access into a body cavity. In one embodiment, a surgical access device is provided that includes a housing coupled to a retractor. The housing can be have one or more sealing ports for receiving surgical instruments. Each sealing port can include one or more sealing elements therein for sealing the port and/or forming a seal around a surgical instrument disposed therethrough. Each sealing port can be in a fixed position relative to the housing and can be rotatable with the housing relative to the retractor. A plurality of safety shields can extend from the housing into the retractor to protect the retractor from instruments inserted through the sealing ports and into the retractor.

Abstract: Methods and devices are provided for providing surgical access into a body cavity. In one embodiment, a surgical access device is provided that includes a housing coupled to a retractor. The housing can be have one or more sealing ports for receiving surgical instruments. Each sealing port can include one or more sealing elements therein for sealing the port and/or forming a seal around a surgical instrument disposed therethrough. Each sealing port can be in a fixed position relative to the housing and can be rotatable with the housing relative to the retractor. A plurality of safety shields can extend from the housing into the retractor to protect the retractor from instruments inserted through the sealing ports and into the retractor.

Abstract: The invention provides a superconductor comprising particles made of a superconductive material, and a conductive material. The conductive material is selected to be driven to a superconductive state when in proximity to the superconductive material, and preferably at least includes bismuth. An unbroken length of the conductive material is located sufficiently close to a plurality of the particles to be driven to a superconductive state by the superconductive material.

Abstract: A fault current limiting system is described. A fault current limiting component is made of a superconductor metal matrix material having an n-value of at least 15 at 15K.

Abstract: A method of making an oxide superconductor wire is described. A combination of YBa2Cu3O7?x particles and HgO is prepared. The combination is formed into a wire. The combination is heated so that the HgO decomposes into Hg and O. The O from the HgO is provided to the particles. The Hg from the HgO is provided to the particles. The Hg from the HgO is noble with respect to the particles. The combination is allowed to cool at a rate sufficient to prevent recombination of the Hg and O from the HgO, so that at least a substantial portion of the Hg from the HgO remains in the metallic state.