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https://issues.apache.org/jira/browse/TIKA-2440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16144962#comment-16144962
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Takahiro Ochi commented on TIKA-2440:
-------------------------------------

Thank you for the response.

I think "some folks might want to search for phonetic strings in some use 
cases" as you mentioned. Let's leave the default as-is for compatibility, but 
allow users via configuration to turn it off.


> Phonetic strings handling for multilingual environments.
> --------------------------------------------------------
>
>                 Key: TIKA-2440
>                 URL: https://issues.apache.org/jira/browse/TIKA-2440
>             Project: Tika
>          Issue Type: Improvement
>          Components: parser
>            Reporter: Takahiro Ochi
>            Priority: Minor
>
> Hi there,
> I would like to propose an idea to improve phonetic strings handling for 
> multilingual environments. I believe Tika should not concatenate phonetic 
> strings because text with phonetic strings is recognized as noisy text in 
> most situations of natural language processing.
> Excel files include phonetic strings in some languages such as Japanese, 
> Chinese and so on. Apache POI concatenates phonetic strings onto the shared 
> strings when Tika extract text from Excel files.
> Recent Apache POI has an switch flag for phonetic strings concatination as 
> follows:
> https://poi.apache.org/apidocs/org/apache/poi/xssf/eventusermodel/ReadOnlySharedStringsTable.html#ReadOnlySharedStringsTable(org.apache.poi.openxml4j.opc.OPCPackage,%20boolean)
> Tika should set the 2nd argument "includePhoneticRuns" as false. Here is the 
> simple patch for my idea.
> {code:java}
> $ diff -ru XSSFExcelExtractorDecorator.java 
> ./tika/tika-1.15/tika-parsers/src/main/java/org/apache/tika/parser/microsoft/ooxml/XSSFExcelExtractorDecorator.java
> --- XSSFExcelExtractorDecorator.java    2017-06-10 19:13:33.355412625 +0900
> +++ 
> ./tika/tika-1.15/tika-parsers/src/main/java/org/apache/tika/parser/microsoft/ooxml/XSSFExcelExtractorDecorator.java
>  2017-06-10 19:14:30.452411830 +0900
> @@ -130,7 +130,7 @@
>              styles = xssfReader.getStylesTable();
>              iter = (XSSFReader.SheetIterator) xssfReader.getSheetsData();
> -            strings = new ReadOnlySharedStringsTable(container);
> +            strings = new ReadOnlySharedStringsTable(container,false);
>          } catch (InvalidFormatException e) {
>              throw new XmlException(e);
>          } catch (OpenXML4JException oe) {
> {code}



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