2 results about "Identity column" patented technology

The application provides a kind of based on table template multi-source data fusion and display method, comprising: by visual table tool setting initial table template mapping rule, mapping rule includes setting first data source column, second data source column and unique identification column;According to mapping rule, obtain first data source data, and fill first data source data into first data source column in initial table template, obtain first table template;According to first table template, obtain second data source data entered;According to unique identification column, first data source data and second data source data are matched and fused, and fusion data is obtained;Fusion data is visually displayed.The application realizes the automatic matching and fusion of multi-source data by the rule mapping of unified table template for multi-source data, and solves the problems of multi-source data fusion difficulty, multi-source data query difficulty and report generation complexity by using visual table tool to display fusion results.

The application belongs to the technical field of information security and data retrieval, and discloses a low-misjudgment cross-modal ciphertext retrieval method based on subset predicate encryption, wherein a data owner maps data of different modes to the same Hamming space to generate binary hash codes; then, the binary hash codes are subjected to bucketing to establish an inverted index of the hash bucket number to the encrypted object identification list; then, a symmetric subset predicate encryption is used to encrypt an XOR filter to generate a lightweight encrypted index; when querying, a client generates a hash bucket number pair set to construct a search token and send it to a server once; after subset verification in the encrypted XOR filter, the server returns encrypted multi-modal data in the corresponding bucket. The application uses an XOR filter to eliminate the false positive misjudgment of a traditional Bloom filter, significantly improves retrieval accuracy, reduces server-side retrieval complexity to a constant level, and realizes low-misjudgment, high-efficiency and low-overhead cross-modal ciphertext retrieval under the premise of ensuring privacy.