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You can use this Snap to remove duplicate records from input documents. When you use multiple matching criteria to deduplicate your data, the Snap evaluates using each criterion separately, and then aggregates to give the final result. This Snap ignores fields with empty strings and whitespaces as no data.
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The Deduplicate Snap fails to deduplicate data when the input document contains an empty string, white spaces, or null values in a field.
Does not support Ultra Pipelines.
Type | Format | Number of Views | Examples of Upstream and Downstream Snaps | Description |
---|---|---|---|---|
Input | Document |
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| A document with data containing duplicate records. |
Output | Document |
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Parameter Name | Data Type | Description | Default Value | Example | |
---|---|---|---|---|---|
Label | String | N/A | Deduplicate Office Names | ||
Threshold | Decimal | Required. The minimum confidence required for documents to be considered matched as duplicates using the matching criteria. Minimum Value: 0 Maximum Value: 1 | 0.8 | 0.95 | |
Confidence | Checkbox | Select this check box to include each match's confidence levels in the output. | Deselected | N/A | |
Group ID | Checkbox | Select this check box to include the group ID for each record in the output. | Deselected | N/A | |
Matching Criteria | Fieldset | Enables you to specify the settings that you want to use to match input documents with the matching criteria. | N/A | N/A | |
Field | JSONPath | The field in the input dataset that you want to use for matching and identifying duplicates. | N/A | $name | |
Cleaner | String | None | Text | ||
Comparator | String | Levenshtein | Numeric | ||
Low | Decimal | A decimal value representing the level of probability of the input documents to be matched if the specified fields are completely unlike.
| N/A | 0.1 | |
High | Decimal | A decimal value representing the level of probability of the input documents to be matched if the specified fields are a complete match.
| NA | 0.8 | |
Minimum memory (MB) | Integer/Expression | Specify a minimum cut-off value for the memory the Snap must use when processing the documents. If the available memory is less than the specified value, the Snap stops execution and displays an exception to prevent the system from running out of memory.
| 200 | 1000 | |
Minimum free disk space (MB) | Integer/Expression | Specify the minimum free disk space required for the Snap to execute. If the free disk space is less the than the specified value, the Snap stops execution and displays an exception to prevent the system from running out of disk space.
| 200 | 1000 | |
Snap Execution | String |
| Validate & Execute | N/A |
In this example, you deduplicate the data in a CSV file containing a list of childhood centers in Chicago.