Difference between revisions of "Dedupe 2.4"
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==Dedupe 2.4: Group 1 - 008 Date (Verify)== | ==Dedupe 2.4: Group 1 - 008 Date (Verify)== | ||
[[Image:d2-4.png]]<br><br> | [[Image:d2-4.png]]<br><br> | ||
| − | + | == 008 date == | |
Verify Date: This is for verifying on the publication date used in the 008 date fields (positions 7-10 and 11-14. | Verify Date: This is for verifying on the publication date used in the 008 date fields (positions 7-10 and 11-14. | ||
| − | + | == Verify Method == | |
Parameters in this verification allow partial dates to match to either full dates or other partial dates. Different methods are used in this FULL/PARTIAL/WITHIN. | Parameters in this verification allow partial dates to match to either full dates or other partial dates. Different methods are used in this FULL/PARTIAL/WITHIN. | ||
| + | ===Full=== | ||
| + | Full compares both date1 and date2 of each record; both must match: | ||
| + | <font size="3"> | ||
| + | Record A: | ||
| + | date1 date2 | ||
| + | 008 1972 1973 | ||
| + | |||
| + | Record B: | ||
| + | date1 date2 | ||
| + | 008 1972 1973</font> | ||
| + | In this example, both date1 (1972) & date2 (1973) of Record A & B match. Matching on Full returns a match for these two records. | ||
| + | ===Partial=== | ||
| + | Partial compares date1 of each record. If no match it compares date2 (as long date doesn't contain fill characters--<space> or <pipe>): | ||
| + | <font size="3"> | ||
| + | Record A: | ||
| + | date1 date2 | ||
| + | 008 <font color="red">1971</font> 1973 | ||
| + | |||
| + | Record B: | ||
| + | date1 date2 | ||
| + | 008 <font color="red">1972</font> 1973</font> | ||
| + | Since Record A's date1 (1971) is a mismatch against Record B's date1 (1972), both record's date2 (1973) are considered. Matching on Partial returns a match for these two records. | ||
| + | ===Within=== | ||
| + | Within compares date1 of one record to date2 of other record, and vice-versa. If no match it also does a partial verify: | ||
| + | <font size="3"> | ||
| + | Record A: | ||
| + | date1 date2 | ||
| + | 008 1970 <font color="red">1973</font> | ||
| + | |||
| + | Record B: | ||
| + | date1 date2 | ||
| + | 008 <font color="red">1973</font> 1972</font> | ||
| + | In this example, date1 in Record A (1970) does not match date2 in Record B (1972). So, it checks date2 of Record A (1973) against date1 of Record B (1973). Matching on Within returns a match for these two records. | ||
| − | + | == Tolerance == | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
The date tolerance for the Verify Date parameter is the number of years the date can differ and still qualify as a matched record. This allows for more leniency with hits on the 010/020 and stricter criteria for the TITLE or other fields. The tolerance allows for dates to match within a specified number of years. | The date tolerance for the Verify Date parameter is the number of years the date can differ and still qualify as a matched record. This allows for more leniency with hits on the 010/020 and stricter criteria for the TITLE or other fields. The tolerance allows for dates to match within a specified number of years. | ||
| − | + | ===Match exactly=== | |
The year '''1996''' can only verify with another record that has the year '''1996'''. It will not match either '''1995''', '''199u''', '''199-''', or '''199 ''' (ends with blank). | The year '''1996''' can only verify with another record that has the year '''1996'''. It will not match either '''1995''', '''199u''', '''199-''', or '''199 ''' (ends with blank). | ||
| − | + | ===Off by 1 year=== | |
The year '''1996''' would match either '''1995''', '''1996''', or '''1997'''. It would not match '''1994''', '''1998''', or years where the ending digit is missing or contains a fill character. | The year '''1996''' would match either '''1995''', '''1996''', or '''1997'''. It would not match '''1994''', '''1998''', or years where the ending digit is missing or contains a fill character. | ||
| − | + | ===Off by # years=== | |
This allows the year tolerance to be increased by the Library for two-plus years. This is helpful when the desired outcome is to match the same decade of the original year in question. | This allows the year tolerance to be increased by the Library for two-plus years. This is helpful when the desired outcome is to match the same decade of the original year in question. | ||
Revision as of 11:13, 2 April 2013
Contents
Dedupe 2.4: Group 1 - 008 Date (Verify)
008 date
Verify Date: This is for verifying on the publication date used in the 008 date fields (positions 7-10 and 11-14.
Verify Method
Parameters in this verification allow partial dates to match to either full dates or other partial dates. Different methods are used in this FULL/PARTIAL/WITHIN.
Full
Full compares both date1 and date2 of each record; both must match:
Record A:
date1 date2
008 1972 1973
Record B:
date1 date2
008 1972 1973
In this example, both date1 (1972) & date2 (1973) of Record A & B match. Matching on Full returns a match for these two records.
Partial
Partial compares date1 of each record. If no match it compares date2 (as long date doesn't contain fill characters--<space> or <pipe>):
Record A:
date1 date2
008 1971 1973
Record B:
date1 date2
008 1972 1973
Since Record A's date1 (1971) is a mismatch against Record B's date1 (1972), both record's date2 (1973) are considered. Matching on Partial returns a match for these two records.
Within
Within compares date1 of one record to date2 of other record, and vice-versa. If no match it also does a partial verify:
Record A:
date1 date2
008 1970 1973
Record B:
date1 date2
008 1973 1972
In this example, date1 in Record A (1970) does not match date2 in Record B (1972). So, it checks date2 of Record A (1973) against date1 of Record B (1973). Matching on Within returns a match for these two records.
Tolerance
The date tolerance for the Verify Date parameter is the number of years the date can differ and still qualify as a matched record. This allows for more leniency with hits on the 010/020 and stricter criteria for the TITLE or other fields. The tolerance allows for dates to match within a specified number of years.
Match exactly
The year 1996 can only verify with another record that has the year 1996. It will not match either 1995, 199u, 199-, or 199 (ends with blank).
Off by 1 year
The year 1996 would match either 1995, 1996, or 1997. It would not match 1994, 1998, or years where the ending digit is missing or contains a fill character.
Off by # years
This allows the year tolerance to be increased by the Library for two-plus years. This is helpful when the desired outcome is to match the same decade of the original year in question.
- Although Backstage recommends using the 008 date blocks, if these are missing or considered unreliable, please consult with Backstage staff for using the 260 $c publication date instead.
Default
| Group 1 (010, 020, 022) | |
|---|---|
| 008 date blocks must verify; can be off by 1 year | |
links
1.0 - 2.0 - 3.0 - 4.0 - 5.0 - 6.0
