2results about How to "Avoid query" patented technology

This invention relates to a white-box adversarial example generation method and system for liquid state machines, belonging to the field of neural network security. It aims to address the problem that existing methods cannot effectively handle non-differentiable cyclic components and gradient calculation failures caused by random pulse coding in liquid state machines. The method constructs a computable and stable gradient propagation path from model loss to the original input through gradient splitting and time-averaged gradient approximation. It includes a cyclic process of forward propagation and backward gradient calculation. The corresponding system includes a data input and preprocessing module, a target model loading and inference module, a gradient calculation module, an attack algorithm integration module, and an adversarial example synthesis and feedback module. This invention achieves an effective white-box attack on liquid state machines for the first time, with advantages such as high attack success rate, good perturbation concealment, and strong scalability, providing a powerful tool for evaluating the security of spiking neural networks.

The invention relates to a system for realizing distributed big data cluster design and deployment optimization based on hierarchical indexing, and the system comprises a high-speed index cluster which is used for independently storing all index data and completing the mapping processing from a query condition to a unique internal serial number of each data record; the data storage cluster is used for storing data on a plurality of data storage nodes and taking a random number prefix of a unique internal serial number as a slice key to be in one-to-one correspondence with the plurality of data storage nodes; and the master controller server (group) is used for receiving all read and write requests in the system, synchronizing the high-speed index cluster and the data storage cluster to complete the read and write requests, and returning the result of the read and write requests to a request calling party. The invention also relates to a corresponding method. By the adoption of the system and method for achieving distributed big data cluster design and deployment optimization based on hierarchical indexing, the data storage capacity of a single data node is greatly improved.