[oXygen-user] Feature request: Improvement of Japanese search for WebHelp
Sat Apr 11 21:26:38 CDT 2015
Let me revive this old thread. Could you reconsider this?
As already said, the Japanese text has no explicit word breakers. It's something like "THEQUICKBROWNFOXJUMPSOVERTHELAZYDOG."
The current WebHelp implementation is tokenizing it into "TH" "HE" "EQ" "QU" "UI" "IC" "CK"... both at build-time and run-time. It works to some extent, but not quite comfortable.
That's why analyzers such as Kuromoji are most welcome. And, to deliver fully capable search experience, WebHelp requires both build-time and run-time analyzers, as you pointed out.
That being said, it would still benefit a lot to integrate sophisticated analyzers, even if it's only at build-time. Run-time ones are less required, I guess. When the Japanese people search Web, they, human beings, usually perform a kind of tokenization and normalization by themselves.
i.e. They do not usually enter "BROWNFOXJUMPS" in the search text box. In most cases we can expect them to type "BROWN FOX JUMP".
Actually "Please enter keywords separated by spaces" has been a common instruction found on the Japanese search UI. People have got used to it.
Here's another piece of news:
I haven't tried it, but expect some difficulties. I heard it required a 17MB dictionary.
From: [mailto:] On Behalf Of Sorin Ristache
Sent: Tuesday, November 19, 2013 6:09 PM
To: Naoki Hirai
Subject: Re: [oXygen-user] Feature request: Improvement of Japanese search for WebHelp
The Webhelp content indexer is indeed based on the Lucene engine just
like the Kuromoji morphological analyzer, so delegating the task of
indexing any Japanese content at build time (when the Webhelp pages are
created by the Oxygen Webhelp transformation) to the Kuromoji analyzer
is doable. However the Webhelp search is performed at runtime on the
Webhelp search is executed in the browser, not on the server side, where
the Webhelp pages are stored. The difficulty in integrating an analyzer
that deals with a specific language sentence morphology like the
analyzer that is able to split the search string entered by the user
into the morphological components recognized by the Lucene-based
morphological analyzer that built the index database at build time.
solution for a Japanese morphological analyzer. If you can suggest such
a solution we would surely consider it as a future improvement for the
Naoki Hirai wrote:
> I like Oxygen WebHelp very much and recommend it to Japanese users. The
> WebHelp is sophisticated online manual solution, but one issue has still
> remained for Japanese users. That is a Japanese search. For Japanese
> it's difficult to extract words from sentences. Because the words are
> not separated by spaces. Therefore, in general, a morphological analyzer
> is used to extract the words from the sentences. Recently, an open
> source Japanese morphological analyzer which is called "Kuromoji" has
> become popular. The Apache Solr has introduced Kuromoji as the
> morphological analyzer.
> So, my feature request is that Oxygen WebHelp plug-in will incorporate
> Kuromoji as the morphological analyzer. And add a parameter which
> selects a stemmer for generating a WebHelp output. I can help the
> development and the evaluation.
> Please have a thought.
> Best regards,
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