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Posted to dev@lucene.apache.org by "Doron Cohen (JIRA)" <ji...@apache.org> on 2006/11/03 06:41:16 UTC
[jira] Created: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Index File Format - Example for frequency file .frq is wrong
------------------------------------------------------------
Key: LUCENE-706
URL: http://issues.apache.org/jira/browse/LUCENE-706
Project: Lucene - Java
Issue Type: Improvement
Components: Website
Environment: not applicable
Reporter: Doron Cohen
Assigned To: Doron Cohen
Priority: Trivial
Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
Frequency file example says:
For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
15, 22, 3
It should be:
For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
15, 8, 3
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[jira] Commented: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Doron Cohen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=comments#action_12447042 ]
Doron Cohen commented on LUCENE-706:
------------------------------------
Right -
15 = 2 * 7 + 1 --> doc 7 with freq 1
8 = 2 * (11 - 7) --> doc 11 with frequency > 1
3 --> frequency = 3 for doc 11
.frq file actual content for similar case also agrees with that, it starts like this (Hex):
0D 08 03 01 03
(note: Hex: 0D = 15.)
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Grant Ingersoll
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
--
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[jira] Resolved: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Grant Ingersoll (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=all ]
Grant Ingersoll resolved LUCENE-706.
------------------------------------
Resolution: Fixed
Applied. Thanks Johan and Doron.
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Grant Ingersoll
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
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[jira] Commented: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Doron Cohen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=comments#action_12447049 ]
Doron Cohen commented on LUCENE-706:
------------------------------------
Right, sorry, copied that hex data from an .frq of an index with a different example, where the frequencies were 1 in doc 6 and 3 in doc 10, so there you would get 2 * 6 + 1 = 13.
For the correct example of freq 1 in doc 7 and 3 in doc 11 the .frq content is 0F 08 03 as it should be.
(Meaning that the documentatin should still be fixed...;-)
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Grant Ingersoll
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
--
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[jira] Commented: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Steven Rowe (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=comments#action_12447044 ]
Steven Rowe commented on LUCENE-706:
------------------------------------
Hex: 0D is NOT the same as decimal 15. 0Dh = 13d. 15d = 0Fh.
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Grant Ingersoll
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
--
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[jira] Assigned: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Grant Ingersoll (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=all ]
Grant Ingersoll reassigned LUCENE-706:
--------------------------------------
Assignee: Grant Ingersoll (was: Doron Cohen)
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Grant Ingersoll
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
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[jira] Commented: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Grant Ingersoll (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=comments#action_12446948 ]
Grant Ingersoll commented on LUCENE-706:
----------------------------------------
Just to double check the math:
>From the Website:
"DocDelta determines both the document number and the frequency. In particular, DocDelta/2 is the difference between this document number and the previous document number (or zero when this is the first document in a TermFreqs). When DocDelta is odd, the frequency is one. When DocDelta is even, the frequency is read as another VInt."
So, 15 is the correct start since 15 /2 as an int is 7 and the frequency is one. Then the difference between doc 7 and 11 is 4, so the next value should be 8 (since DocDelta/2 = 11 - 7, which is even, meaning the frequency is the next VInt, in this case 3, so I would concur.
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Doron Cohen
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
--
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[jira] Updated: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Doron Cohen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=all ]
Doron Cohen updated LUCENE-706:
-------------------------------
Lucene Fields: [New, Patch Available] (was: [New])
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Doron Cohen
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
--
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[jira] Updated: (LUCENE-706) Index File Format - Example for
frequency file .frq is wrong
Posted by "Doron Cohen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-706?page=all ]
Doron Cohen updated LUCENE-706:
-------------------------------
Attachment: file-format-frq-example.patch
example fixed
> Index File Format - Example for frequency file .frq is wrong
> ------------------------------------------------------------
>
> Key: LUCENE-706
> URL: http://issues.apache.org/jira/browse/LUCENE-706
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Website
> Environment: not applicable
> Reporter: Doron Cohen
> Assigned To: Doron Cohen
> Priority: Trivial
> Attachments: file-format-frq-example.patch
>
>
> Reported by Johan Stuyts - http://www.nabble.com/Possible-documentation-error--p7012445.html -
> Frequency file example says:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 22, 3
> It should be:
> For example, the TermFreqs for a term which occurs once in document seven and three times in document eleven would be the following sequence of VInts:
> 15, 8, 3
--
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