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56 results about "Record linkage" patented technology

Record linkage (RL) is the task of finding records in a data set that refer to the same entity across different data sources (e.g., data files, books, websites, and databases). Record linkage is necessary when joining data sets based on entities that may or may not share a common identifier (e.g., database key, URI, National identification number), which may be due to differences in record shape, storage location, or curator style or preference. A data set that has undergone RL-oriented reconciliation may be referred to as being cross-linked. Record linkage is called data linkage in many jurisdictions, but is the same process.

Multi-party record linkage method and system, electronic device and storage medium

The invention provides a multi-party record linkage method, comprising the steps of: data preprocessing: dividing data sources of a plurality of participants into blocks, and converting records in thedata sources into bit arrays; record approximate matching: calculating the ratio of the bit arrays corresponding to the position of bit 1, and determining the corresponding positions of the interestrate as candidate matching positions when the interest rate reaches a dynamic threshold; similarity calculation: calculating the similarity between the candidate matching positions and judging whetherthe similarity reaches the global threshold. If yes, the matching is successful, otherwise the matching fails. The invention also relates to an electronic device, a storage medium and a multi-party record linkage system. The invention adopts the ratio to mark the similarity between the records at a certain position, thereby improving the fault tolerance; By using dynamic threshold and candidatematching positions to check and determine the successful matching position, so that the recall ratio and precision ratio are high; the similarity between records with quality problems can be effectively calculated; the invention realizes multi-party record linkage, can effectively protect privacy, and has good scalability and fault tolerance.
Owner:ZHEJIANG JIESHANG ARTIFICIAL INTELLIGENCE RES & DEV CO LTD
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