Re: CJK Analyzers for Solr

2007-12-03 Thread James liu
gt; >solr-user@lucene.apache.org Sent: Wednesday, > >November 28, 2007 5:43:32 PM Subject: Re: CJK > >Analyzers for Solr With Ultraseek, we switched > >to a dictionary-based segmenter for Chinese > >because the N-gram highlighting wasn't > >acceptable to our Chinese

Re: CJK Analyzers for Solr

2007-12-02 Thread Ken Krugler
://sematext.com/ -- Lucene - Solr - Nutch - Original Message From: Walter Underwood <[EMAIL PROTECTED]> To: solr-user@lucene.apache.org Sent: Wednesday, November 28, 2007 5:43:32 PM Subject: Re: CJK Analyzers for Solr With Ultraseek, we switched to a dictionary-based segmenter for C

Re: CJK Analyzers for Solr

2007-12-02 Thread Otis Gospodnetic
Underwood <[EMAIL PROTECTED]> To: solr-user@lucene.apache.org Sent: Wednesday, November 28, 2007 5:43:32 PM Subject: Re: CJK Analyzers for Solr With Ultraseek, we switched to a dictionary-based segmenter for Chinese because the N-gram highlighting wasn't acceptable to our Chinese cu

Re: CJK Analyzers for Solr

2007-11-28 Thread Walter Underwood
by native speakers of these languages. > > Otis > -- > Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch > > - Original Message > From: Walter Underwood <[EMAIL PROTECTED]> > To: solr-user@lucene.apache.org > Sent: Tuesday, November 27, 2007 2:41:38 PM &

Re: CJK Analyzers for Solr

2007-11-27 Thread Luke Lu
Tuesday, November 27, 2007 12:12:40 PM Subject: Re: CJK Analyzers for Solr Eswar, What type of morphological analysis do you suspect (or know) that Google does on east asian text? I don't think you can treat the three languages in the same way here. Japanese has multi-morphemic words, but C

Re: CJK Analyzers for Solr

2007-11-27 Thread Otis Gospodnetic
:40 AM Subject: Re: CJK Analyzers for Solr John, There were two parts to my question, 1) n-gram vs morphological analyzer - This was based on what I read at a few places which rate morphological analysis higher than n-gram. An example being ( http://www.basistech.com/knowledge-center/products/N-G

Re: CJK Analyzers for Solr

2007-11-27 Thread Eswar K
From: Eswar K <[EMAIL PROTECTED]> > To: solr-user@lucene.apache.org > Sent: Monday, November 26, 2007 9:27:15 PM > Subject: Re: CJK Analyzers for Solr > > thanks james... > > How much time does it take to index 18m docs? > > - Eswar > > On Nov 27, 2007 7:43 AM, James l

Re: CJK Analyzers for Solr

2007-11-27 Thread Eswar K
John, There were two parts to my question, 1) n-gram vs morphological analyzer - This was based on what I read at a few places which rate morphological analysis higher than n-gram. An example being ( http://www.basistech.com/knowledge-center/products/N-Gram-vs-morphological-analysis.pdf). My inte

Re: CJK Analyzers for Solr

2007-11-27 Thread Otis Gospodnetic
atext -- http://sematext.com/ -- Lucene - Solr - Nutch - Original Message From: Eswar K <[EMAIL PROTECTED]> To: solr-user@lucene.apache.org Sent: Monday, November 26, 2007 9:27:15 PM Subject: Re: CJK Analyzers for Solr thanks james... How much time does it take to index 18m docs? - Es

Re: CJK Analyzers for Solr

2007-11-27 Thread Otis Gospodnetic
7 8:51:23 PM Subject: Re: CJK Analyzers for Solr I don't think NGram is good method for Chinese. CJKAnalyzer of Lucene is 2-Gram. Eswar K: if it is chinese analyzer,,i recommend hylanda(www.hylanda.com),,,it is the best chinese analyzer and it not free. if u wanna free chinese analyzer,

Re: CJK Analyzers for Solr

2007-11-27 Thread Otis Gospodnetic
these languages. Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch - Original Message From: Walter Underwood <[EMAIL PROTECTED]> To: solr-user@lucene.apache.org Sent: Tuesday, November 27, 2007 2:41:38 PM Subject: Re: CJK Analyzers for Solr Dictionaries are surprisingly e

Re: CJK Analyzers for Solr

2007-11-27 Thread Otis Gospodnetic
7, 2007 12:12:40 PM Subject: Re: CJK Analyzers for Solr Eswar, What type of morphological analysis do you suspect (or know) that Google does on east asian text? I don't think you can treat the three languages in the same way here. Japanese has multi-morphemic words, but Chinese doesn'

Re: CJK Analyzers for Solr

2007-11-27 Thread Walter Underwood
Dictionaries are surprisingly expensive to build and maintain and bi-gram is surprisingly effective for Chinese. See this paper: http://citeseer.ist.psu.edu/kwok97comparing.html I expect that n-gram indexing would be less effective for Japanese because it is an inflected language. Korean is ev

Re: CJK Analyzers for Solr

2007-11-27 Thread Mike Klaas
On 27-Nov-07, at 8:54 AM, Eswar K wrote: Is there any specific reason why the CJK analyzers in Solr were chosen to be n-gram based instead of it being a morphological analyzer which is kind of implemented in Google as it considered to be more effective than the n-gram ones? The CJK analy

Re: CJK Analyzers for Solr

2007-11-27 Thread John Stewart
Eswar, What type of morphological analysis do you suspect (or know) that Google does on east asian text? I don't think you can treat the three languages in the same way here. Japanese has multi-morphemic words, but Chinese doesn't really. jds On Nov 27, 2007 11:54 AM, Eswar K <[EMAIL PROTECTED

Re: CJK Analyzers for Solr

2007-11-27 Thread Eswar K
Is there any specific reason why the CJK analyzers in Solr were chosen to be n-gram based instead of it being a morphological analyzer which is kind of implemented in Google as it considered to be more effective than the n-gram ones? Regards, Eswar On Nov 27, 2007 7:57 AM, Eswar K <[EMAIL PROTE

Re: CJK Analyzers for Solr

2007-11-26 Thread Eswar K
thanks james... How much time does it take to index 18m docs? - Eswar On Nov 27, 2007 7:43 AM, James liu <[EMAIL PROTECTED]> wrote: > i not use HYLANDA analyzer. > > i use je-analyzer and indexing at least 18m docs. > > i m sorry i only use chinese analyzer. > > > On Nov 27, 2007 10:01 AM, Eswa

Re: CJK Analyzers for Solr

2007-11-26 Thread James liu
i not use HYLANDA analyzer. i use je-analyzer and indexing at least 18m docs. i m sorry i only use chinese analyzer. On Nov 27, 2007 10:01 AM, Eswar K <[EMAIL PROTECTED]> wrote: > What is the performance of these CJK analyzers (one in lucene and hylanda > )? > We would potentially be indexing

Re: CJK Analyzers for Solr

2007-11-26 Thread Eswar K
What is the performance of these CJK analyzers (one in lucene and hylanda )? We would potentially be indexing millions of documents. James, We would have a look at hylanda too. What abt japanese and korean analyzers, any recommendations? - Eswar On Nov 27, 2007 7:21 AM, James liu <[EMAIL PROTEC

Re: CJK Analyzers for Solr

2007-11-26 Thread James liu
ns C1C2 into 'C1 C2'. I hope someone who speaks Mandarin or > > Cantonese understands what this should do. > > > > Lance > > > > -Original Message- > > From: Eswar K [mailto:[EMAIL PROTECTED] > > Sent: Monday, November 26, 2007 10:28 AM >

Re: CJK Analyzers for Solr

2007-11-26 Thread James liu
I don't think NGram is good method for Chinese. CJKAnalyzer of Lucene is 2-Gram. Eswar K: if it is chinese analyzer,,i recommend hylanda(www.hylanda.com),,,it is the best chinese analyzer and it not free. if u wanna free chinese analyzer, maybe u can try je-analyzer. it have some problem when

Re: CJK Analyzers for Solr

2007-11-26 Thread zx zhang
#x27;C1 C2'. I hope someone who speaks Mandarin or > Cantonese understands what this should do. > > Lance > > -Original Message- > From: Eswar K [mailto:[EMAIL PROTECTED] > Sent: Monday, November 26, 2007 10:28 AM > To: solr-user@lucene.apache.org > Subject: Re: CJK Ana

Re: CJK Analyzers for Solr

2007-11-26 Thread Otis Gospodnetic
Eswar, We've uses the NGram stuff that exists in Lucene's contrib/analyzers instead of CJK. Doesn't that allow you to do everything that the Chinese and CJK analyzers do? It's been a few months since I've looked at Chinese and CJK Analzyers, so I could be off. Otis -- Sematext -- http://sem

RE: CJK Analyzers for Solr

2007-11-26 Thread Chris Hostetter
: I notice this is in the future tense. Is the CJKTokenizer available yet? CJKTokenizer and CJKAnalyzer are both available in Solr 1.2, but no TokenizerFactory was provided for CJKTokenizer in 1.2, so it wasn't possible to use "out of the box" without writing a 3 line java plugin. that 3 line

RE: CJK Analyzers for Solr

2007-11-26 Thread Norskog, Lance
1) turns C1C2 into 'C1 C2'. I hope someone who speaks Mandarin or Cantonese understands what this should do. Lance -Original Message- From: Eswar K [mailto:[EMAIL PROTECTED] Sent: Monday, November 26, 2007 10:28 AM To: solr-user@lucene.apache.org Subject: Re: CJK Analyzers fo

Re: CJK Analyzers for Solr

2007-11-26 Thread Eswar K
Hoss, Thanks a lot. Will look into it. Regards, Eswar On Nov 26, 2007 11:55 PM, Chris Hostetter <[EMAIL PROTECTED]> wrote: > > : Does Solr come with Language analyzers for CJK? If not, can you please > : direct me to some good CJK analyzers? > > Lucene has a CJKTokenizer and CJKAnalyzer in the

Re: CJK Analyzers for Solr

2007-11-26 Thread Chris Hostetter
: Does Solr come with Language analyzers for CJK? If not, can you please : direct me to some good CJK analyzers? Lucene has a CJKTokenizer and CJKAnalyzer in the contrib/analyzers jar. they can be used in Solr. both have been included in Solr for a while now, so you can specify CJKAnalyzer in