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Sørensen–Dice Coefficient Algorithm

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What Is The 

Sørensen–Dice Coefficient Algorithm?

The Sørensen–Dice coefficient is a similarity coefficient that is used to compare the similarity of two samples. It is commonly used in the field of natural language processing, where it is used to compare the similarity of two strings of text. The coefficient is calculated by dividing the number of common elements in the two samples by the average number of elements in the two samples. The result is a number between 0 and 1, where 0 indicates that the two samples have no elements in common, and 1 indicates that the two samples are identical. The Sørensen–Dice coefficient is often used in conjunction with other similarity measures to provide a more comprehensive measure of similarity.

At Tilores we use the Sørensen–Dice coefficient algorithm as one of the potential data record matching algorithms for entity resolution. These can be combined with other matching algorithms to allow fine-tuned data matching and deduplication. 

More reading about the Sørensen–Dice coefficient algorithm (Wikipedia) 


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