3 results about "Description scheme" patented technology

This application discloses a method, apparatus, device, and storage medium for generating scheduling problems. This application relates to the field of electronic data processing technology. The method includes: constructing a hierarchical knowledge representation structure for the target scheduling domain, the hierarchical knowledge representation structure comprising a general concept layer and an instance data layer; performing semantic planning based on the hierarchical knowledge representation structure to generate an intermediate description scheme for the corresponding scheduling problem; performing constraint enhancement processing based on the intermediate description scheme to generate target problem model data; and performing feasibility verification on the target problem model data to obtain a logically consistent and solvable scheduling problem.

The application discloses a kind of generation methods of rotation invariant multi-scale annular feature descriptor, to overcome the challenge that feature recognition technology is difficult to accurately describe key features due to image rotation problem in image recognition field.First, multi-scale annular domain is constructed, for the segmentation local feature around feature point, to obtain multi-scale annular feature;Then the eigenvalue of annular feature is calculated with annular feature as basic unit;Finally, the eigenvalue obtained from multiple scales is sorted to form a feature vector with rotation invariance.The feature description scheme provided by the application avoids obtaining a feature vector with rotation invariance by estimating the dominant direction of the feature point.Compared with the scheme based on the dominant direction, the feature vector provided by the application will not be disturbed by the error from the dominant direction, avoids the operation of rotating all local features to the same direction according to the dominant direction, simplifies the calculation steps of describing local features, and reduces the algorithm complexity.

The invention discloses a smart contract and off-chain service combination method and system, and the method comprises the steps: obtaining an executable service and an abstract service, and carrying out the modeling of a collaborative combination of an on-chain smart contract and an off-chain service through the executable service and the abstract service, and obtaining an on-chain and off-chain collaborative combination model; designing a description scheme for a basic control structure in the on-chain and off-chain collaborative combination model, and constructing an abstract service collaborative combination graph based on the description scheme; and on the basis of the abstract service collaborative combination graph, defining service quality, solving by using a first optimization algorithm according to the service quality to obtain an optimal collaborative combination, and endowing each abstract service in the abstract service collaborative combination graph with an optimal executable service.