Abstract: This specification relates to the field of knowledge graphs, and in particular, to knowledge reuse methods, apparatuses, computer-readable media, and systems. In an example computer-implemented method, a child entity is defined based on a parent entity, where the parent entity is selected from entities in a knowledge graph. A knowledge inheritance method is performed to inherit a portion of instance data of the parent entity. Instance data of the child entity are determined. First graph increment information corresponding to the instance data of the child entity is stored.

Abstract: This document describes techniques, apparatuses, and systems for an antenna-to-printed circuit board (PCB) transition. An apparatus (e.g., a radar system) may include an MMIC or other processor to generate electromagnetic signals. The apparatus can include a PCB that includes multiple layers, a first surface, and a second surface that is opposite and in parallel with the first surface. The PCB can also include a dielectric-filled portion formed between the first surface and second surface. The apparatus can also include a conductive loop located on the first surface and connected to a pair of lines. The apparatus can further include a transition channel mounted on the first surface and positioned over the dielectric-filled portion. The described transition can reduce manufacturing costs and board sizes, reduce energy losses, and support a wide bandwidth.