Abstract: Presented herein are embodiments of a fast search on graph methodology for Maximum Inner Product Search (MIPS). This optimization problem is challenging since traditional Approximate Nearest Neighbor (ANN) search methods may not perform efficiently in the nonmetric similarity measure. Embodiments herein are based on the property that a Möbius/Möbius-like transformation introduces an isomorphism between a subgraph of 2-Delaunay graph and Delaunay graph for inner product. Under this observation, embodiments of a novel graph indexing and searching methodology are presented to find the optimal solution with the largest inner product with the query. Experiments show significant improvements compared to existing methods.

Abstract: The heat dissipation cabinet includes a cabinet body, a cabinet door, and a baffle. The cabinet body includes a top wall and a bottom wall that are oppositely disposed, and a side wall connected between the top wall and the bottom wall. The cabinet door is installed at a position of the side wall in the cabinet body, and an air outlet passage is disposed in the cabinet body that is close to a position of the top wall. An air inlet component and an air outlet component are disposed in the cabinet door, and the air outlet component is located between the air inlet component and the top wall, and is located at one end of the air outlet passage. An electronic apparatus placement area is disposed in the cabinet body, and the baffle is disposed between the electronic apparatus placement area and the cabinet door.