I am very grateful for all your reply and very sorry for my late response.
You can see that I posted my message twice, because I didn't see it after I
posted first and thought it wouldn't appear in the list. So these days I
didn't check my gmail box.  I have figured out that problem. The index was a
mixture of two kinds of index types  that were comprised of  .cfs and
(.tis,.tii.and so on).

  >I'll second Otis' request about the special segmentation api.  If it
>is open source, I'd love to tinker with it.  中文是不太难。  :)

The api is open source, I can distribute it to you. I am glad You understand
Chinese. How I should deliver it to you?  Because the api includes a Chinese
lexis which is nearly 10M in size. Maybe I can mail it to you.



2006/5/30, Erik Hatcher <erik@ehatchersolutions.com>:
>
>
> On May 29, 2006, at 6:34 AM, hu andy wrote:
> > I indexed a collection of Chinese documents. I use a special
> > segmentation
> > api to do the analysis, because the segmentation of Chinese is
> > different
> > from English.
>
> I'll second Otis' request about the special segmentation api.  If it
> is open source, I'd love to tinker with it.  中文是不太难。  :)
>
> > A strange thing happened.   With lucene 1.4 or lucene 2.0, it will
> > be all
> > right to retrieve the corresponding documents given the terms that
> > exist in
> > the index  *.tis file(I wrote a program to pick the terms from
> > the .tis file
> > and search them).  But with 1.9, for some terms that existed in the
> > index, I
> > couldn't retrieve the corresponding document.
> >
> > Can anybody give me some advice about this? Thank you in advance.
>
> If you can share an example that demonstrates an issue, we'd love to
> have it and incorporate it into our test suite and fix the
> implementation if a bug exists.   A working example of a bug can get
> fixed much easier than looking for needles in a haystack.
>
>        Erik
>
>
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